Fix: Fetch file content from PR head using GitHub API

The workflow was checking out the base branch but trying to read files
from the filesystem, which meant it couldn't see changes in the PR.
Now using github.rest.repos.getContent with the PR head SHA to fetch
the actual file content from the PR branch.

Co-authored-by: clydebarrow <2366188+clydebarrow@users.noreply.github.com>

.ai/instructions.md

@@ -124,28 +124,6 @@ This document provides essential context for AI models interacting with this pro
     *   **Indentation:** Use spaces (two per indentation level), not tabs
     *   **Type aliases:** Prefer `using type_t = int;` over `typedef int type_t;`
     *   **Line length:** Wrap lines at no more than 120 characters
-    *   **Constructor parameters vs setters:** Component properties that are both **required** and **invariant**
-        (never change after construction) should be constructor parameters rather than set via setter methods.
-        This makes the dependency explicit and prevents use of the object in an incompletely-initialized state.
-        In code generation, when calling `cg.new_Pvariable()` or the relevant helper function to create the component, pass these as arguments.
-        ```cpp
-        // Good - required invariant dependency as constructor parameter
-        class SourceTextSensor : public text_sensor::TextSensor, public Component {
-         public:
-          explicit SourceTextSensor(text::Text *source) : source_(source) {}
-         protected:
-          text::Text *source_;
-        };
-        ```
-        ```cpp
-        // Bad - required invariant dependency as setter
-        class SourceTextSensor : public text_sensor::TextSensor, public Component {
-         public:
-          void set_source(text::Text *source) { this->source_ = source; }
-         protected:
-          text::Text *source_{nullptr};
-        };
-        ```
 
 *   **Component Structure:**
     *   **Standard Files:**
@@ -239,123 +217,6 @@ This document provides essential context for AI models interacting with this pro
               var = await switch.new_switch(config)
           ```
 
-*   **Automations (Triggers, Actions, Conditions):**
-
-    Automations have three building blocks: **Triggers** (fire when something happens), **Actions** (do something), and **Conditions** (check if something is true).
-
-    *   **Triggers -- Callback method (preferred):**
-
-        Use `build_callback_automation()` for simple triggers. This eliminates the need for a C++ Trigger class by using a lightweight pointer-sized forwarder struct registered directly as a callback. No `CONF_TRIGGER_ID` in the schema.
-
-        **Python:**
-        ```python
-        from esphome import automation
-
-        CONFIG_SCHEMA = cv.Schema({
-            cv.GenerateID(): cv.declare_id(MyComponent),
-            cv.Optional(CONF_ON_STATE): automation.validate_automation({}),
-        }).extend(cv.COMPONENT_SCHEMA)
-
-        async def to_code(config):
-            var = cg.new_Pvariable(config[CONF_ID])
-            await cg.register_component(var, config)
-            for conf in config.get(CONF_ON_STATE, []):
-                await automation.build_callback_automation(
-                    var, "add_on_state_callback", [(bool, "x")], conf
-                )
-        ```
-
-        `build_callback_automation` arguments: `parent`, `callback_method` (C++ method name), `args` (template args as `[(type, name)]` tuples), `config`, and optional `forwarder` (defaults to `TriggerForwarder<Ts...>`).
-
-        For boolean filtering (e.g. `on_press`/`on_release`), use built-in forwarders with `args=[]`:
-        ```python
-        for conf_key, forwarder in (
-            (CONF_ON_PRESS, automation.TriggerOnTrueForwarder),
-            (CONF_ON_RELEASE, automation.TriggerOnFalseForwarder),
-        ):
-            for conf in config.get(conf_key, []):
-                await automation.build_callback_automation(
-                    var, "add_on_state_callback", [], conf, forwarder=forwarder
-                )
-        ```
-
-        **C++ -- no trigger class needed.** The callback registration method must be templatized to accept both `std::function` and lightweight forwarder structs (which avoid heap allocation):
-        ```cpp
-        class MyComponent : public Component {
-         public:
-          // Must be a template -- accepts both std::function and pointer-sized forwarder structs
-          template<typename F> void add_on_state_callback(F &&callback) {
-            this->state_callback_.add(std::forward<F>(callback));
-          }
-         protected:
-          // Use CallbackManager when callbacks are always registered (e.g. core components)
-          CallbackManager<void(bool)> state_callback_;
-          // Use LazyCallbackManager when callbacks are often not registered -- saves 8 bytes
-          // (nullptr vs empty std::vector) per instance when no callbacks are added
-          // LazyCallbackManager<void(bool)> state_callback_;
-        };
-        ```
-
-    *   **Triggers -- Trigger class method:**
-
-        Use `build_automation()` with a `Trigger<Ts...>` subclass only when the forwarder needs **mutable state beyond a single `Automation*` pointer** (e.g. edge detection tracking previous state, timing logic).
-
-        **Python:**
-        ```python
-        TurnOnTrigger = my_ns.class_("TurnOnTrigger", automation.Trigger.template())
-
-        CONFIG_SCHEMA = cv.Schema({
-            cv.Optional(CONF_ON_TURN_ON): automation.validate_automation(
-                {cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(TurnOnTrigger)}
-            ),
-        })
-
-        async def to_code(config):
-            for conf in config.get(CONF_ON_TURN_ON, []):
-                trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
-                await automation.build_automation(trigger, [], conf)
-        ```
-
-        **C++:**
-        ```cpp
-        class TurnOnTrigger : public Trigger<> {
-         public:
-          explicit TurnOnTrigger(MyComponent *parent) : last_on_{false} {
-            parent->add_on_state_callback([this](bool state) {
-              if (state && !this->last_on_)
-                this->trigger();
-              this->last_on_ = state;
-            });
-          }
-         protected:
-          bool last_on_;
-        };
-        ```
-
-    *   **Actions:**
-        ```cpp
-        template<typename... Ts> class MyAction : public Action<Ts...> {
-         public:
-          explicit MyAction(MyComponent *parent) : parent_(parent) {}
-          void play(const Ts &...) override { this->parent_->do_something(); }
-         protected:
-          MyComponent *parent_;
-        };
-        ```
-        Register with `@automation.register_action("my_component.do_something", MyAction, schema, synchronous=True)`. Use `synchronous=True` for actions that run to completion inside `play()` without deferring. Use `synchronous=False` if the action may suspend/defer execution (e.g. `delay`, `wait_until`, `script.wait`) or store trigger arguments for later use.
-
-    *   **Conditions:**
-        ```cpp
-        template<typename... Ts> class MyCondition : public Condition<Ts...> {
-         public:
-          explicit MyCondition(MyComponent *parent) : parent_(parent) {}
-          bool check(const Ts &...) override { return this->parent_->is_active(); }
-         protected:
-          MyComponent *parent_;
-        };
-        ```
-        Register with `@automation.register_condition("my_component.is_active", MyCondition, schema)`.
-
 *   **Configuration Validation:**
     *   **Common Validators:** `cv.int_`, `cv.float_`, `cv.string`, `cv.boolean`, `cv.int_range(min=0, max=100)`, `cv.positive_int`, `cv.percentage`.
     *   **Complex Validation:** `cv.All(cv.string, cv.Length(min=1, max=50))`, `cv.Any(cv.int_, cv.string)`.
@@ -391,39 +252,10 @@ This document provides essential context for AI models interacting with this pro
     *   **Component Tests:** YAML-based compilation tests are located in `tests/`. The structure is as follows:
         ```
         tests/
-        ├── test_build_components/
-        │   └── common/          # Shared bus packages (uart, i2c, spi, etc.)
-        │       ├── uart/        # UART at default baud rate
-        │       ├── uart_115200/ # UART at 115200 baud
-        │       ├── i2c/         # I2C bus
-        │       └── spi/         # SPI bus
-        └── components/[component]/
-            ├── common.yaml      # Component-only config (no bus definitions)
-            ├── test.esp32-idf.yaml
-            ├── test.esp8266-ard.yaml
-            └── test.rp2040-ard.yaml
+        ├── test_build_components/ # Base test configurations
+        └── components/[component]/ # Component-specific tests
         ```
         Run them using `script/test_build_components`. Use `-c <component>` to test specific components and `-t <target>` for specific platforms.
-
-    *   **Test Grouping with Packages:** Components that use shared bus packages can be grouped together in CI to reduce build count. **Never define buses (uart, i2c, spi, modbus) directly in test YAML files** — always use packages from `test_build_components/common/`:
-        ```yaml
-        # test.esp32-idf.yaml — use packages for buses
-        packages:
-          uart: !include ../../test_build_components/common/uart_115200/esp32-idf.yaml
-
-        <<: !include common.yaml
-        ```
-        ```yaml
-        # common.yaml — component config only, NO bus definitions
-        my_component:
-          id: my_instance
-
-        sensor:
-          - platform: my_component
-            name: My Sensor
-        ```
-        Components that define buses directly are flagged as "NEEDS MIGRATION" and cannot be grouped, increasing CI build time.
-
     *   **Testing All Components Together:** To verify that all components can be tested together without ID conflicts or configuration issues, use:
         ```bash
         ./script/test_component_grouping.py -e config --all
@@ -454,7 +286,6 @@ This document provides essential context for AI models interacting with this pro
 *   **Documentation Contributions:**
     *   Documentation is hosted in the separate `esphome/esphome-docs` repository.
     *   The contribution workflow is the same as for the codebase.
-    *   When editing a component's documentation page, also update the corresponding component index page to ensure both pages remain in sync.
 
 *   **Best Practices:**
     *   **Component Development:** Keep dependencies minimal, provide clear error messages, and write comprehensive docstrings and tests.
@@ -563,30 +394,6 @@ This document provides essential context for AI models interacting with this pro
 
         Note: Avoiding heap allocation after `setup()` is always required regardless of component type. The prioritization above is about the effort spent on container optimization (e.g., migrating from `std::vector` to `StaticVector`).
 
-        **Callback Managers:**
-
-        ESPHome provides two callback manager types in `esphome/core/helpers.h` for the observer pattern. Both support `std::function`, lambdas, and lightweight forwarder structs via their templatized `add()` method.
-
-        | Type | Idle overhead (32-bit) | When to use |
-        |------|----------------------|-------------|
-        | `CallbackManager<void(Ts...)>` | 12 bytes (empty `std::vector`) | Callbacks are always or almost always registered |
-        | `LazyCallbackManager<void(Ts...)>` | 4 bytes (`nullptr`) | Callbacks are often not registered (common case) |
-
-        `LazyCallbackManager` is a drop-in replacement for `CallbackManager` that defers allocation until the first callback is added. Prefer it for entity-level callbacks where most instances have no subscribers.
-
-        **Important:** Registration methods that add to a callback manager **must always be templatized** to accept both `std::function` and pointer-sized forwarder structs (used by `build_callback_automation`). Never use `std::function` in the method signature:
-        ```cpp
-        // Bad -- forces heap allocation for forwarder structs
-        void add_on_state_callback(std::function<void(bool)> &&callback) {
-          this->state_callback_.add(std::move(callback));
-        }
-
-        // Good -- accepts any callable without forcing std::function wrapping
-        template<typename F> void add_on_state_callback(F &&callback) {
-          this->state_callback_.add(std::forward<F>(callback));
-        }
-        ```
-
     *   **State Management:** Use `CORE.data` for component state that needs to persist during configuration generation. Avoid module-level mutable globals.
 
         **Bad Pattern (Module-Level Globals):**

.clang-tidy.hash

@@ -1 +1 @@
-c65f1a0804a7765462d570c50891ac719260592df2c9cdfe88233fc346ac59e9
+15dc295268b2dcf75942f42759b3ddec64eba89f75525698eb39c95a7f4b14ce

.devcontainer/devcontainer.json

@@ -12,7 +12,7 @@
     "--privileged",
     "-e",
     "GIT_EDITOR=code --wait"
-    // uncomment and edit the path in order to pass through local USB serial to the container
+    // uncomment and edit the path in order to pass though local USB serial to the conatiner
     // , "--device=/dev/ttyACM0"
   ],
   "appPort": 6052,

.github/PULL_REQUEST_TEMPLATE.md

@@ -6,9 +6,8 @@
 
 - [ ] Bugfix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
-- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) — [policy](https://developers.esphome.io/contributing/code/#what-constitutes-a-c-breaking-change)
-- [ ] Developer breaking change (an API change that could break external components) — [policy](https://developers.esphome.io/contributing/code/#what-is-considered-public-c-api)
-- [ ] Undocumented C++ API change (removal or change of undocumented public methods that lambda users may depend on) — [policy](https://developers.esphome.io/contributing/code/#c-user-expectations)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Developer breaking change (an API change that could break external components)
 - [ ] Code quality improvements to existing code or addition of tests
 - [ ] Other
 
@@ -25,7 +24,7 @@
 - [ ] ESP32
 - [ ] ESP32 IDF
 - [ ] ESP8266
-- [ ] RP2040/RP2350
+- [ ] RP2040
 - [ ] BK72xx
 - [ ] RTL87xx
 - [ ] LN882x

.github/actions/build-image/action.yaml

@@ -47,7 +47,7 @@ runs:
 
     - name: Build and push to ghcr by digest
       id: build-ghcr
-      uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
+      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false
@@ -73,7 +73,7 @@ runs:
 
     - name: Build and push to dockerhub by digest
       id: build-dockerhub
-      uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
+      uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
       env:
         DOCKER_BUILD_SUMMARY: false
         DOCKER_BUILD_RECORD_UPLOAD: false

.github/actions/restore-python/action.yml

@@ -22,7 +22,7 @@ runs:
         python-version: ${{ inputs.python-version }}
     - name: Restore Python virtual environment
       id: cache-venv
-      uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
       with:
         path: venv
         # yamllint disable-line rule:line-length

.github/scripts/auto-label-pr/constants.js

@@ -1,41 +0,0 @@
-// Constants and markers for PR auto-labeling
-module.exports = {
-  BOT_COMMENT_MARKER: '<!-- auto-label-pr-bot -->',
-  CODEOWNERS_MARKER: '<!-- codeowners-request -->',
-  TOO_BIG_MARKER: '<!-- too-big-request -->',
-  DEPRECATED_COMPONENT_MARKER: '<!-- deprecated-component-request -->',
-  ORG_FORK_MARKER: '<!-- maintainer-access-warning -->',
-
-  MANAGED_LABELS: [
-    'new-component',
-    'new-platform',
-    'new-target-platform',
-    'merging-to-release',
-    'merging-to-beta',
-    'chained-pr',
-    'core',
-    'small-pr',
-    'medium-pr',
-    'dashboard',
-    'github-actions',
-    'by-code-owner',
-    'has-tests',
-    'needs-tests',
-    'needs-docs',
-    'needs-codeowners',
-    'too-big',
-    'labeller-recheck',
-    'bugfix',
-    'new-feature',
-    'breaking-change',
-    'developer-breaking-change',
-    'undocumented-api-change',
-    'code-quality',
-    'deprecated-component'
-  ],
-
-  DOCS_PR_PATTERNS: [
-    /https:\/\/github\.com\/esphome\/esphome-docs\/pull\/\d+/,
-    /esphome\/esphome-docs#\d+/
-  ]
-};

.github/scripts/auto-label-pr/detectors.js

@@ -1,352 +0,0 @@
-const fs = require('fs');
-const { DOCS_PR_PATTERNS } = require('./constants');
-const {
-  COMPONENT_REGEX,
-  detectComponents,
-  hasCoreChanges,
-  hasDashboardChanges,
-  hasGitHubActionsChanges,
-} = require('../detect-tags');
-const { loadCodeowners, getEffectiveOwners } = require('../codeowners');
-
-// Strategy: Merge branch detection
-async function detectMergeBranch(context) {
-  const labels = new Set();
-  const baseRef = context.payload.pull_request.base.ref;
-
-  if (baseRef === 'release') {
-    labels.add('merging-to-release');
-  } else if (baseRef === 'beta') {
-    labels.add('merging-to-beta');
-  } else if (baseRef !== 'dev') {
-    labels.add('chained-pr');
-  }
-
-  return labels;
-}
-
-// Strategy: Component and platform labeling
-async function detectComponentPlatforms(changedFiles, apiData) {
-  const labels = new Set();
-  const targetPlatformRegex = new RegExp(`^esphome\/components\/(${apiData.targetPlatforms.join('|')})/`);
-
-  for (const comp of detectComponents(changedFiles)) {
-    labels.add(`component: ${comp}`);
-  }
-
-  for (const file of changedFiles) {
-    const platformMatch = file.match(targetPlatformRegex);
-    if (platformMatch) {
-      labels.add(`platform: ${platformMatch[1]}`);
-    }
-  }
-
-  return labels;
-}
-
-// Strategy: New component detection
-async function detectNewComponents(prFiles) {
-  const labels = new Set();
-  const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
-
-  for (const file of addedFiles) {
-    const componentMatch = file.match(/^esphome\/components\/([^\/]+)\/__init__\.py$/);
-    if (componentMatch) {
-      try {
-        const content = fs.readFileSync(file, 'utf8');
-        if (content.includes('IS_TARGET_PLATFORM = True')) {
-          labels.add('new-target-platform');
-        }
-      } catch (error) {
-        console.log(`Failed to read content of ${file}:`, error.message);
-      }
-      labels.add('new-component');
-    }
-  }
-
-  return labels;
-}
-
-// Strategy: New platform detection
-async function detectNewPlatforms(prFiles, apiData) {
-  const labels = new Set();
-  const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
-
-  for (const file of addedFiles) {
-    const platformFileMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\.py$/);
-    if (platformFileMatch) {
-      const [, component, platform] = platformFileMatch;
-      if (apiData.platformComponents.includes(platform)) {
-        labels.add('new-platform');
-      }
-    }
-
-    const platformDirMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\/__init__\.py$/);
-    if (platformDirMatch) {
-      const [, component, platform] = platformDirMatch;
-      if (apiData.platformComponents.includes(platform)) {
-        labels.add('new-platform');
-      }
-    }
-  }
-
-  return labels;
-}
-
-// Strategy: Core files detection
-async function detectCoreChanges(changedFiles) {
-  const labels = new Set();
-  if (hasCoreChanges(changedFiles)) {
-    labels.add('core');
-  }
-  return labels;
-}
-
-// Strategy: PR size detection
-async function detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, MEDIUM_PR_THRESHOLD, TOO_BIG_THRESHOLD) {
-  const labels = new Set();
-
-  if (totalChanges <= SMALL_PR_THRESHOLD) {
-    labels.add('small-pr');
-    return labels;
-  }
-
-  if (totalChanges <= MEDIUM_PR_THRESHOLD) {
-    labels.add('medium-pr');
-    return labels;
-  }
-
-  const testAdditions = prFiles
-    .filter(file => file.filename.startsWith('tests/'))
-    .reduce((sum, file) => sum + (file.additions || 0), 0);
-  const testDeletions = prFiles
-    .filter(file => file.filename.startsWith('tests/'))
-    .reduce((sum, file) => sum + (file.deletions || 0), 0);
-
-  const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
-
-  // Don't add too-big if mega-pr label is already present
-  if (nonTestChanges > TOO_BIG_THRESHOLD && !isMegaPR) {
-    labels.add('too-big');
-  }
-
-  return labels;
-}
-
-// Strategy: Dashboard changes
-async function detectDashboardChanges(changedFiles) {
-  const labels = new Set();
-  if (hasDashboardChanges(changedFiles)) {
-    labels.add('dashboard');
-  }
-  return labels;
-}
-
-// Strategy: GitHub Actions changes
-async function detectGitHubActionsChanges(changedFiles) {
-  const labels = new Set();
-  if (hasGitHubActionsChanges(changedFiles)) {
-    labels.add('github-actions');
-  }
-  return labels;
-}
-
-// Strategy: Code owner detection
-async function detectCodeOwner(github, context, changedFiles) {
-  const labels = new Set();
-
-  try {
-    const codeownersPatterns = loadCodeowners();
-    const prAuthor = context.payload.pull_request.user.login;
-
-    // Check if PR author is a codeowner of any changed file
-    const effective = getEffectiveOwners(changedFiles, codeownersPatterns);
-    if (effective.users.has(prAuthor)) {
-      labels.add('by-code-owner');
-    }
-  } catch (error) {
-    console.log('Failed to read or parse CODEOWNERS file:', error.message);
-  }
-
-  return labels;
-}
-
-// Strategy: Test detection
-async function detectTests(changedFiles) {
-  const labels = new Set();
-  const testFiles = changedFiles.filter(file => file.startsWith('tests/'));
-
-  if (testFiles.length > 0) {
-    labels.add('has-tests');
-  }
-
-  return labels;
-}
-
-// Strategy: PR Template Checkbox detection
-async function detectPRTemplateCheckboxes(context) {
-  const labels = new Set();
-  const prBody = context.payload.pull_request.body || '';
-
-  console.log('Checking PR template checkboxes...');
-
-  // Check for checked checkboxes in the "Types of changes" section
-  const checkboxPatterns = [
-    { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
-    { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
-    { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
-    { pattern: /- \[x\] Developer breaking change \(an API change that could break external components\)/i, label: 'developer-breaking-change' },
-    { pattern: /- \[x\] Undocumented C\+\+ API change \(removal or change of undocumented public methods that lambda users may depend on\)/i, label: 'undocumented-api-change' },
-    { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
-  ];
-
-  for (const { pattern, label } of checkboxPatterns) {
-    if (pattern.test(prBody)) {
-      console.log(`Found checked checkbox for: ${label}`);
-      labels.add(label);
-    }
-  }
-
-  return labels;
-}
-
-// Strategy: Deprecated component detection
-async function detectDeprecatedComponents(github, context, changedFiles) {
-  const labels = new Set();
-  const deprecatedInfo = [];
-  const { owner, repo } = context.repo;
-
-  // Compile regex once for better performance
-  const componentFileRegex = COMPONENT_REGEX;
-
-  // Get files that are modified or added in components directory
-  const componentFiles = changedFiles.filter(file => componentFileRegex.test(file));
-
-  if (componentFiles.length === 0) {
-    return { labels, deprecatedInfo };
-  }
-
-  // Extract unique component names using the same regex
-  const components = new Set();
-  for (const file of componentFiles) {
-    const match = file.match(componentFileRegex);
-    if (match) {
-      components.add(match[1]);
-    }
-  }
-
-  // Get base branch ref to check if deprecation already exists for the component
-  // This prevents flagging a PR that simply adds deprecation
-  const baseRef = context.payload.pull_request.base.ref;
-
-  // Check each component's __init__.py for DEPRECATED_COMPONENT constant
-  for (const component of components) {
-    const initFile = `esphome/components/${component}/__init__.py`;
-    try {
-      // Fetch file content from base branch using GitHub API
-      const { data: fileData } = await github.rest.repos.getContent({
-        owner,
-        repo,
-        path: initFile,
-        ref: baseRef
-      });
-
-      // Decode base64 content
-      const content = Buffer.from(fileData.content, 'base64').toString('utf8');
-
-      // Look for DEPRECATED_COMPONENT = "message" or DEPRECATED_COMPONENT = 'message'
-      // Support single quotes, double quotes, and triple quotes (for multiline)
-      const doubleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*"""([\s\S]*?)"""/s) ||
-                              content.match(/DEPRECATED_COMPONENT\s*=\s*"((?:[^"\\]|\\.)*)"/);
-      const singleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*'''([\s\S]*?)'''/s) ||
-                              content.match(/DEPRECATED_COMPONENT\s*=\s*'((?:[^'\\]|\\.)*)'/);
-      const deprecatedMatch = doubleQuoteMatch || singleQuoteMatch;
-
-      if (deprecatedMatch) {
-        labels.add('deprecated-component');
-        deprecatedInfo.push({
-          component: component,
-          message: deprecatedMatch[1].trim()
-        });
-        console.log(`Found deprecated component: ${component}`);
-      }
-    } catch (error) {
-      // Only log if it's not a simple "file not found" error (404)
-      if (error.status !== 404) {
-        console.log(`Error reading ${initFile}:`, error.message);
-      }
-    }
-  }
-
-  return { labels, deprecatedInfo };
-}
-
-// Strategy: Detect when maintainers cannot modify the PR branch
-function detectMaintainerAccess(context) {
-  const pr = context.payload.pull_request;
-
-  // Only relevant for cross-repo PRs (forks)
-  if (!pr.head.repo || pr.head.repo.full_name === pr.base.repo.full_name) {
-    return null;
-  }
-
-  if (pr.maintainer_can_modify) {
-    return null;
-  }
-
-  const isOrgFork = pr.head.repo.owner.type === 'Organization';
-  console.log(`Maintainer cannot modify PR branch (${isOrgFork ? 'org fork: ' + pr.head.repo.owner.login : 'user disabled'})`);
-  return { isOrgFork, orgName: pr.head.repo.owner.login };
-}
-
-// Strategy: Requirements detection
-async function detectRequirements(allLabels, prFiles, context) {
-  const labels = new Set();
-
-  // Check for missing tests
-  if ((allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) && !allLabels.has('has-tests')) {
-    labels.add('needs-tests');
-  }
-
-  // Check for missing docs
-  if (allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) {
-    const prBody = context.payload.pull_request.body || '';
-    const hasDocsLink = DOCS_PR_PATTERNS.some(pattern => pattern.test(prBody));
-
-    if (!hasDocsLink) {
-      labels.add('needs-docs');
-    }
-  }
-
-  // Check for missing CODEOWNERS
-  if (allLabels.has('new-component')) {
-    const codeownersModified = prFiles.some(file =>
-      file.filename === 'CODEOWNERS' &&
-      (file.status === 'modified' || file.status === 'added') &&
-      (file.additions || 0) > 0
-    );
-
-    if (!codeownersModified) {
-      labels.add('needs-codeowners');
-    }
-  }
-
-  return labels;
-}
-
-module.exports = {
-  detectMergeBranch,
-  detectComponentPlatforms,
-  detectNewComponents,
-  detectNewPlatforms,
-  detectCoreChanges,
-  detectPRSize,
-  detectDashboardChanges,
-  detectGitHubActionsChanges,
-  detectCodeOwner,
-  detectTests,
-  detectPRTemplateCheckboxes,
-  detectDeprecatedComponents,
-  detectMaintainerAccess,
-  detectRequirements
-};

.github/scripts/auto-label-pr/index.js

@@ -1,194 +0,0 @@
-const { MANAGED_LABELS } = require('./constants');
-const {
-  detectMergeBranch,
-  detectComponentPlatforms,
-  detectNewComponents,
-  detectNewPlatforms,
-  detectCoreChanges,
-  detectPRSize,
-  detectDashboardChanges,
-  detectGitHubActionsChanges,
-  detectCodeOwner,
-  detectTests,
-  detectPRTemplateCheckboxes,
-  detectDeprecatedComponents,
-  detectMaintainerAccess,
-  detectRequirements
-} = require('./detectors');
-const { handleReviews, handleMaintainerAccessComment } = require('./reviews');
-const { applyLabels, removeOldLabels } = require('./labels');
-
-// Fetch API data
-async function fetchApiData() {
-  try {
-    const response = await fetch('https://data.esphome.io/components.json');
-    const componentsData = await response.json();
-    return {
-      targetPlatforms: componentsData.target_platforms || [],
-      platformComponents: componentsData.platform_components || []
-    };
-  } catch (error) {
-    console.log('Failed to fetch components data from API:', error.message);
-    return { targetPlatforms: [], platformComponents: [] };
-  }
-}
-
-module.exports = async ({ github, context }) => {
-  // Environment variables
-  const SMALL_PR_THRESHOLD = parseInt(process.env.SMALL_PR_THRESHOLD);
-  const MEDIUM_PR_THRESHOLD = parseInt(process.env.MEDIUM_PR_THRESHOLD);
-  const MAX_LABELS = parseInt(process.env.MAX_LABELS);
-  const TOO_BIG_THRESHOLD = parseInt(process.env.TOO_BIG_THRESHOLD);
-  const COMPONENT_LABEL_THRESHOLD = parseInt(process.env.COMPONENT_LABEL_THRESHOLD);
-
-  // Global state
-  const { owner, repo } = context.repo;
-  const pr_number = context.issue.number;
-
-  // Get current labels and PR data
-  const { data: currentLabelsData } = await github.rest.issues.listLabelsOnIssue({
-    owner,
-    repo,
-    issue_number: pr_number
-  });
-  const currentLabels = currentLabelsData.map(label => label.name);
-  const managedLabels = currentLabels.filter(label =>
-    label.startsWith('component: ') || MANAGED_LABELS.includes(label)
-  );
-
-  // Check for mega-PR early - if present, skip most automatic labeling
-  const isMegaPR = currentLabels.includes('mega-pr');
-
-  // Get all PR files with automatic pagination
-  const prFiles = await github.paginate(
-    github.rest.pulls.listFiles,
-    {
-      owner,
-      repo,
-      pull_number: pr_number
-    }
-  );
-
-  // Calculate data from PR files
-  const changedFiles = prFiles.map(file => file.filename);
-  const totalAdditions = prFiles.reduce((sum, file) => sum + (file.additions || 0), 0);
-  const totalDeletions = prFiles.reduce((sum, file) => sum + (file.deletions || 0), 0);
-  const totalChanges = totalAdditions + totalDeletions;
-
-  console.log('Current labels:', currentLabels.join(', '));
-  console.log('Changed files:', changedFiles.length);
-  console.log('Total changes:', totalChanges);
-  if (isMegaPR) {
-    console.log('Mega-PR detected - applying limited labeling logic');
-  }
-
-  // Fetch API data
-  const apiData = await fetchApiData();
-  const baseRef = context.payload.pull_request.base.ref;
-
-  // Early exit for release and beta branches only
-  if (baseRef === 'release' || baseRef === 'beta') {
-    const branchLabels = await detectMergeBranch(context);
-    const finalLabels = Array.from(branchLabels);
-
-    console.log('Computed labels (merge branch only):', finalLabels.join(', '));
-
-    // Apply labels
-    await applyLabels(github, context, finalLabels);
-
-    // Remove old managed labels
-    await removeOldLabels(github, context, managedLabels, finalLabels);
-
-    return;
-  }
-
-  // Run all strategies
-  const [
-    branchLabels,
-    componentLabels,
-    newComponentLabels,
-    newPlatformLabels,
-    coreLabels,
-    sizeLabels,
-    dashboardLabels,
-    actionsLabels,
-    codeOwnerLabels,
-    testLabels,
-    checkboxLabels,
-    deprecatedResult,
-    maintainerAccess
-  ] = await Promise.all([
-    detectMergeBranch(context),
-    detectComponentPlatforms(changedFiles, apiData),
-    detectNewComponents(prFiles),
-    detectNewPlatforms(prFiles, apiData),
-    detectCoreChanges(changedFiles),
-    detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, MEDIUM_PR_THRESHOLD, TOO_BIG_THRESHOLD),
-    detectDashboardChanges(changedFiles),
-    detectGitHubActionsChanges(changedFiles),
-    detectCodeOwner(github, context, changedFiles),
-    detectTests(changedFiles),
-    detectPRTemplateCheckboxes(context),
-    detectDeprecatedComponents(github, context, changedFiles),
-    detectMaintainerAccess(context)
-  ]);
-
-  // Extract deprecated component info
-  const deprecatedLabels = deprecatedResult.labels;
-  const deprecatedInfo = deprecatedResult.deprecatedInfo;
-
-  // Combine all labels
-  const allLabels = new Set([
-    ...branchLabels,
-    ...componentLabels,
-    ...newComponentLabels,
-    ...newPlatformLabels,
-    ...coreLabels,
-    ...sizeLabels,
-    ...dashboardLabels,
-    ...actionsLabels,
-    ...codeOwnerLabels,
-    ...testLabels,
-    ...checkboxLabels,
-    ...deprecatedLabels
-  ]);
-
-  // Detect requirements based on all other labels
-  const requirementLabels = await detectRequirements(allLabels, prFiles, context);
-  for (const label of requirementLabels) {
-    allLabels.add(label);
-  }
-
-  let finalLabels = Array.from(allLabels);
-
-  // For mega-PRs, exclude component labels if there are too many
-  if (isMegaPR) {
-    const componentLabels = finalLabels.filter(label => label.startsWith('component: '));
-    if (componentLabels.length > COMPONENT_LABEL_THRESHOLD) {
-      finalLabels = finalLabels.filter(label => !label.startsWith('component: '));
-      console.log(`Mega-PR detected - excluding ${componentLabels.length} component labels (threshold: ${COMPONENT_LABEL_THRESHOLD})`);
-    }
-  }
-
-  // Handle too many labels (only for non-mega PRs)
-  const tooManyLabels = finalLabels.length > MAX_LABELS;
-  const originalLabelCount = finalLabels.length;
-
-  if (tooManyLabels && !isMegaPR && !finalLabels.includes('too-big')) {
-    finalLabels = ['too-big'];
-  }
-
-  console.log('Computed labels:', finalLabels.join(', '));
-
-  // Handle reviews and org fork comment
-  await Promise.all([
-    handleReviews(github, context, finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, MAX_LABELS, TOO_BIG_THRESHOLD),
-    handleMaintainerAccessComment(github, context, maintainerAccess)
-  ]);
-
-  // Apply labels
-  await applyLabels(github, context, finalLabels);
-
-  // Remove old managed labels
-  await removeOldLabels(github, context, managedLabels, finalLabels);
-};

.github/scripts/auto-label-pr/labels.js

@@ -1,41 +0,0 @@
-// Apply labels to PR
-async function applyLabels(github, context, finalLabels) {
-  const { owner, repo } = context.repo;
-  const pr_number = context.issue.number;
-
-  if (finalLabels.length > 0) {
-    console.log(`Adding labels: ${finalLabels.join(', ')}`);
-    await github.rest.issues.addLabels({
-      owner,
-      repo,
-      issue_number: pr_number,
-      labels: finalLabels
-    });
-  }
-}
-
-// Remove old managed labels
-async function removeOldLabels(github, context, managedLabels, finalLabels) {
-  const { owner, repo } = context.repo;
-  const pr_number = context.issue.number;
-
-  const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
-  for (const label of labelsToRemove) {
-    console.log(`Removing label: ${label}`);
-    try {
-      await github.rest.issues.removeLabel({
-        owner,
-        repo,
-        issue_number: pr_number,
-        name: label
-      });
-    } catch (error) {
-      console.log(`Failed to remove label ${label}:`, error.message);
-    }
-  }
-}
-
-module.exports = {
-  applyLabels,
-  removeOldLabels
-};

.github/scripts/auto-label-pr/reviews.js

@@ -1,199 +0,0 @@
-const {
-  BOT_COMMENT_MARKER,
-  CODEOWNERS_MARKER,
-  TOO_BIG_MARKER,
-  DEPRECATED_COMPONENT_MARKER,
-  ORG_FORK_MARKER
-} = require('./constants');
-
-// Generate review messages
-function generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, prAuthor, MAX_LABELS, TOO_BIG_THRESHOLD) {
-  const messages = [];
-
-  // Deprecated component message
-  if (finalLabels.includes('deprecated-component') && deprecatedInfo && deprecatedInfo.length > 0) {
-    let message = `${DEPRECATED_COMPONENT_MARKER}\n### ⚠️ Deprecated Component\n\n`;
-    message += `Hey there @${prAuthor},\n`;
-    message += `This PR modifies one or more deprecated components. Please be aware:\n\n`;
-
-    for (const info of deprecatedInfo) {
-      message += `#### Component: \`${info.component}\`\n`;
-      message += `${info.message}\n\n`;
-    }
-
-    message += `Consider migrating to the recommended alternative if applicable.`;
-
-    messages.push(message);
-  }
-
-  // Too big message
-  if (finalLabels.includes('too-big')) {
-    const testAdditions = prFiles
-      .filter(file => file.filename.startsWith('tests/'))
-      .reduce((sum, file) => sum + (file.additions || 0), 0);
-    const testDeletions = prFiles
-      .filter(file => file.filename.startsWith('tests/'))
-      .reduce((sum, file) => sum + (file.deletions || 0), 0);
-    const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
-
-    const tooManyLabels = originalLabelCount > MAX_LABELS;
-    const tooManyChanges = nonTestChanges > TOO_BIG_THRESHOLD;
-
-    let message = `${TOO_BIG_MARKER}\n### 📦 Pull Request Size\n\n`;
-
-    if (tooManyLabels && tooManyChanges) {
-      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests) and affects ${originalLabelCount} different components/areas.`;
-    } else if (tooManyLabels) {
-      message += `This PR affects ${originalLabelCount} different components/areas.`;
-    } else {
-      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests).`;
-    }
-
-    message += ` Please consider breaking it down into smaller, focused PRs to make review easier and reduce the risk of conflicts.\n\n`;
-    message += `For guidance on breaking down large PRs, see: https://developers.esphome.io/contributing/submitting-your-work/#how-to-approach-large-submissions`;
-
-    messages.push(message);
-  }
-
-  // CODEOWNERS message
-  if (finalLabels.includes('needs-codeowners')) {
-    const message = `${CODEOWNERS_MARKER}\n### 👥 Code Ownership\n\n` +
-      `Hey there @${prAuthor},\n` +
-      `Thanks for submitting this pull request! Can you add yourself as a codeowner for this integration? ` +
-      `This way we can notify you if a bug report for this integration is reported.\n\n` +
-      `In \`__init__.py\` of the integration, please add:\n\n` +
-      `\`\`\`python\nCODEOWNERS = ["@${prAuthor}"]\n\`\`\`\n\n` +
-      `And run \`script/build_codeowners.py\``;
-
-    messages.push(message);
-  }
-
-  return messages;
-}
-
-// Handle reviews
-async function handleReviews(github, context, finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, MAX_LABELS, TOO_BIG_THRESHOLD) {
-  const { owner, repo } = context.repo;
-  const pr_number = context.issue.number;
-  const prAuthor = context.payload.pull_request.user.login;
-
-  const reviewMessages = generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, prAuthor, MAX_LABELS, TOO_BIG_THRESHOLD);
-  const hasReviewableLabels = finalLabels.some(label =>
-    ['too-big', 'needs-codeowners', 'deprecated-component'].includes(label)
-  );
-
-  const { data: reviews } = await github.rest.pulls.listReviews({
-    owner,
-    repo,
-    pull_number: pr_number
-  });
-
-  const botReviews = reviews.filter(review =>
-    review.user.type === 'Bot' &&
-    review.state === 'CHANGES_REQUESTED' &&
-    review.body && review.body.includes(BOT_COMMENT_MARKER)
-  );
-
-  if (hasReviewableLabels) {
-    const reviewBody = `${BOT_COMMENT_MARKER}\n\n${reviewMessages.join('\n\n---\n\n')}`;
-
-    if (botReviews.length > 0) {
-      // Update existing review
-      await github.rest.pulls.updateReview({
-        owner,
-        repo,
-        pull_number: pr_number,
-        review_id: botReviews[0].id,
-        body: reviewBody
-      });
-      console.log('Updated existing bot review');
-    } else {
-      // Create new review
-      await github.rest.pulls.createReview({
-        owner,
-        repo,
-        pull_number: pr_number,
-        body: reviewBody,
-        event: 'REQUEST_CHANGES'
-      });
-      console.log('Created new bot review');
-    }
-  } else if (botReviews.length > 0) {
-    // Dismiss existing reviews
-    for (const review of botReviews) {
-      try {
-        await github.rest.pulls.dismissReview({
-          owner,
-          repo,
-          pull_number: pr_number,
-          review_id: review.id,
-          message: 'Review dismissed: All requirements have been met'
-        });
-        console.log(`Dismissed bot review ${review.id}`);
-      } catch (error) {
-        console.log(`Failed to dismiss review ${review.id}:`, error.message);
-      }
-    }
-  }
-}
-
-// Handle maintainer access warning comment
-async function handleMaintainerAccessComment(github, context, maintainerAccess) {
-  if (!maintainerAccess) {
-    return;
-  }
-
-  const { owner, repo } = context.repo;
-  const pr_number = context.issue.number;
-  const prAuthor = context.payload.pull_request.user.login;
-
-  // Check if we already posted the warning (iterate pages to exit early)
-  let existingComment;
-  for await (const { data: comments } of github.paginate.iterator(
-    github.rest.issues.listComments,
-    { owner, repo, issue_number: pr_number }
-  )) {
-    existingComment = comments.find(comment =>
-      comment.user.type === 'Bot' &&
-      comment.body && comment.body.includes(ORG_FORK_MARKER)
-    );
-    if (existingComment) {
-      break;
-    }
-  }
-
-  if (existingComment) {
-    console.log('Maintainer access warning comment already exists, skipping');
-    return;
-  }
-
-  let body;
-  if (maintainerAccess.isOrgFork) {
-    body = `${ORG_FORK_MARKER}\n### ⚠️ Organization Fork Detected\n\n` +
-      `Hey there @${prAuthor},\n` +
-      `It looks like this PR was submitted from a fork owned by the **${maintainerAccess.orgName}** organization. ` +
-      `GitHub does not allow maintainers to push changes to pull request branches when the fork is owned by an organization. ` +
-      `This means we won't be able to make small adjustments or fixups to your PR directly.\n\n` +
-      `To allow maintainer collaboration, please re-submit this PR from a personal fork instead.\n\n` +
-      `See: [Setting up the local repository](https://developers.esphome.io/contributing/development-environment/?h=org#set-up-the-local-repository) for more details.`;
-  } else {
-    body = `${ORG_FORK_MARKER}\n### ⚠️ Maintainer Access Disabled\n\n` +
-      `Hey there @${prAuthor},\n` +
-      `It looks like this PR does not have the "Allow edits from maintainers" option enabled. ` +
-      `This means we won't be able to make small adjustments or fixups to your PR directly.\n\n` +
-      `Please enable this option in the PR sidebar to allow maintainer collaboration.`;
-  }
-
-  await github.rest.issues.createComment({
-    owner,
-    repo,
-    issue_number: pr_number,
-    body
-  });
-  console.log('Created maintainer access warning comment');
-}
-
-module.exports = {
-  handleReviews,
-  handleMaintainerAccessComment
-};

.github/scripts/codeowners.js

@@ -1,227 +0,0 @@
-// Shared CODEOWNERS parsing and matching utilities.
-//
-// Used by:
-//   - codeowner-review-request.yml
-//   - codeowner-approved-label-update.yml
-//   - auto-label-pr/detectors.js (detectCodeOwner)
-
-/**
- * Convert a CODEOWNERS glob pattern to a RegExp.
- *
- * Handles **, *, and ? wildcards after escaping regex-special characters.
- */
-function globToRegex(pattern) {
-  let regexStr = pattern
-    .replace(/([.+^=!:${}()|[\]\\])/g, '\\$1')
-    .replace(/\*\*/g, '\x00GLOBSTAR\x00')  // protect ** from next replace
-    .replace(/\*/g, '[^/]*')               // single star
-    .replace(/\x00GLOBSTAR\x00/g, '.*')    // restore globstar
-    .replace(/\?/g, '.');
-  return new RegExp('^' + regexStr + '$');
-}
-
-/**
- * Parse raw CODEOWNERS file content into an array of
- * { pattern, regex, owners } objects.
- *
- * Each `owners` entry is the raw string from the file (e.g. "@user" or
- * "@esphome/core").
- */
-function parseCodeowners(content) {
-  const lines = content
-    .split('\n')
-    .map(line => line.trim())
-    .filter(line => line && !line.startsWith('#'));
-
-  const patterns = [];
-  for (const line of lines) {
-    const parts = line.split(/\s+/);
-    if (parts.length < 2) continue;
-
-    const pattern = parts[0];
-    const owners = parts.slice(1);
-    const regex = globToRegex(pattern);
-    patterns.push({ pattern, regex, owners });
-  }
-  return patterns;
-}
-
-/**
- * Fetch and parse the CODEOWNERS file via the GitHub API.
- *
- * @param {object} github  - octokit instance from actions/github-script
- * @param {string} owner   - repo owner
- * @param {string} repo    - repo name
- * @param {string} [ref]   - git ref (SHA / branch) to read from
- * @returns {Array<{pattern: string, regex: RegExp, owners: string[]}>}
- */
-async function fetchCodeowners(github, owner, repo, ref) {
-  const params = { owner, repo, path: 'CODEOWNERS' };
-  if (ref) params.ref = ref;
-
-  const { data: file } = await github.rest.repos.getContent(params);
-  const content = Buffer.from(file.content, 'base64').toString('utf8');
-  return parseCodeowners(content);
-}
-
-/**
- * Classify raw owner strings into individual users and teams.
- *
- * @param {string[]} rawOwners - e.g. ["@user1", "@esphome/core"]
- * @returns {{ users: string[], teams: string[] }}
- *   users  – login names without "@"
- *   teams  – team slugs without the "org/" prefix
- */
-function classifyOwners(rawOwners) {
-  const users = [];
-  const teams = [];
-  for (const o of rawOwners) {
-    const clean = o.startsWith('@') ? o.slice(1) : o;
-    if (clean.includes('/')) {
-      teams.push(clean.split('/')[1]);
-    } else {
-      users.push(clean);
-    }
-  }
-  return { users, teams };
-}
-
-/**
- * For each file, find its effective codeowners using GitHub's
- * "last match wins" semantics, then union across all files.
- *
- * @param {string[]} files              - list of file paths
- * @param {Array}    codeownersPatterns  - from parseCodeowners / fetchCodeowners
- * @returns {{ users: Set<string>, teams: Set<string>, matchedFileCount: number }}
- */
-function getEffectiveOwners(files, codeownersPatterns) {
-  const users = new Set();
-  const teams = new Set();
-  let matchedFileCount = 0;
-
-  for (const file of files) {
-    // Last matching pattern wins for each file
-    let effectiveOwners = null;
-    for (const { regex, owners } of codeownersPatterns) {
-      if (regex.test(file)) {
-        effectiveOwners = owners;
-      }
-    }
-    if (effectiveOwners) {
-      matchedFileCount++;
-      const classified = classifyOwners(effectiveOwners);
-      for (const u of classified.users) users.add(u);
-      for (const t of classified.teams) teams.add(t);
-    }
-  }
-
-  return { users, teams, matchedFileCount };
-}
-
-/**
- * Read and parse the CODEOWNERS file from disk.
- *
- * Use this when the repo is already checked out (avoids an API call).
- *
- * @param {string} [repoRoot='.'] - path to the repo root
- * @returns {Array<{pattern: string, regex: RegExp, owners: string[]}>}
- */
-function loadCodeowners(repoRoot = '.') {
-  const fs = require('fs');
-  const path = require('path');
-  const content = fs.readFileSync(path.join(repoRoot, 'CODEOWNERS'), 'utf8');
-  return parseCodeowners(content);
-}
-
-/** Possible label actions returned by determineLabelAction. */
-const LabelAction = Object.freeze({
-  ADD: 'add',
-  REMOVE: 'remove',
-  NONE: 'none',
-});
-
-/**
- * Determine what label action is needed for a PR based on codeowner approvals.
- *
- * Checks changed files against CODEOWNERS patterns, reviews, and current labels
- * to decide if the label should be added, removed, or left unchanged.
- *
- * @param {object} github              - octokit instance from actions/github-script
- * @param {string} owner               - repo owner
- * @param {string} repo                - repo name
- * @param {number} pr_number           - pull request number
- * @param {Array}  codeownersPatterns   - from loadCodeowners / fetchCodeowners
- * @param {string} labelName           - label to manage
- * @returns {Promise<LabelAction>}
- */
-async function determineLabelAction(github, owner, repo, pr_number, codeownersPatterns, labelName) {
-  // Get the list of changed files in this PR
-  const prFiles = await github.paginate(
-    github.rest.pulls.listFiles,
-    { owner, repo, pull_number: pr_number }
-  );
-
-  const changedFiles = prFiles.map(file => file.filename);
-  console.log(`Found ${changedFiles.length} changed files`);
-
-  if (changedFiles.length === 0) {
-    console.log('No changed files found');
-    return LabelAction.NONE;
-  }
-
-  // Get effective owners using last-match-wins semantics
-  const effective = getEffectiveOwners(changedFiles, codeownersPatterns);
-  const componentCodeowners = effective.users;
-
-  console.log(`Component-specific codeowners: ${Array.from(componentCodeowners).join(', ') || '(none)'}`);
-
-  // Get current labels
-  const { data: currentLabels } = await github.rest.issues.listLabelsOnIssue({
-    owner, repo, issue_number: pr_number
-  });
-  const hasLabel = currentLabels.some(label => label.name === labelName);
-
-  if (componentCodeowners.size === 0) {
-    console.log('No component-specific codeowners found');
-    return hasLabel ? LabelAction.REMOVE : LabelAction.NONE;
-  }
-
-  // Get all reviews and find latest per user
-  const reviews = await github.paginate(
-    github.rest.pulls.listReviews,
-    { owner, repo, pull_number: pr_number }
-  );
-
-  const latestReviewByUser = new Map();
-  for (const review of reviews) {
-    if (!review.user || review.user.type === 'Bot' || review.state === 'COMMENTED') continue;
-    latestReviewByUser.set(review.user.login, review);
-  }
-
-  // Check if any component-specific codeowner has an active approval
-  let hasCodeownerApproval = false;
-  for (const [login, review] of latestReviewByUser) {
-    if (review.state === 'APPROVED' && componentCodeowners.has(login)) {
-      console.log(`Codeowner '${login}' has approved`);
-      hasCodeownerApproval = true;
-      break;
-    }
-  }
-
-  if (hasCodeownerApproval && !hasLabel) return LabelAction.ADD;
-  if (!hasCodeownerApproval && hasLabel) return LabelAction.REMOVE;
-
-  console.log(`Label already ${hasLabel ? 'present' : 'absent'}, no change needed`);
-  return LabelAction.NONE;
-}
-
-module.exports = {
-  globToRegex,
-  parseCodeowners,
-  fetchCodeowners,
-  loadCodeowners,
-  classifyOwners,
-  getEffectiveOwners,
-  LabelAction,
-  determineLabelAction
-};

.github/scripts/detect-tags.js

@@ -1,66 +0,0 @@
-/**
- * Shared tag detection from changed file paths.
- * Used by pr-title-check and auto-label-pr workflows.
- */
-
-const COMPONENT_REGEX = /^esphome\/components\/([^\/]+)\//;
-
-/**
- * Detect component names from changed files.
- * @param {string[]} changedFiles - List of changed file paths
- * @returns {Set<string>} Set of component names
- */
-function detectComponents(changedFiles) {
-  const components = new Set();
-  for (const file of changedFiles) {
-    const match = file.match(COMPONENT_REGEX);
-    if (match) {
-      components.add(match[1]);
-    }
-  }
-  return components;
-}
-
-/**
- * Detect if core files were changed.
- * Core files are in esphome/core/ or top-level esphome/ directory.
- * @param {string[]} changedFiles - List of changed file paths
- * @returns {boolean}
- */
-function hasCoreChanges(changedFiles) {
-  return changedFiles.some(file =>
-    file.startsWith('esphome/core/') ||
-    (file.startsWith('esphome/') && file.split('/').length === 2)
-  );
-}
-
-/**
- * Detect if dashboard files were changed.
- * @param {string[]} changedFiles - List of changed file paths
- * @returns {boolean}
- */
-function hasDashboardChanges(changedFiles) {
-  return changedFiles.some(file =>
-    file.startsWith('esphome/dashboard/') ||
-    file.startsWith('esphome/components/dashboard_import/')
-  );
-}
-
-/**
- * Detect if GitHub Actions files were changed.
- * @param {string[]} changedFiles - List of changed file paths
- * @returns {boolean}
- */
-function hasGitHubActionsChanges(changedFiles) {
-  return changedFiles.some(file =>
-    file.startsWith('.github/workflows/')
-  );
-}
-
-module.exports = {
-  COMPONENT_REGEX,
-  detectComponents,
-  hasCoreChanges,
-  hasDashboardChanges,
-  hasGitHubActionsChanges,
-};

.github/workflows/auto-label-pr.yml

@@ -12,7 +12,6 @@ permissions:
 
 env:
   SMALL_PR_THRESHOLD: 30
-  MEDIUM_PR_THRESHOLD: 100
   MAX_LABELS: 15
   TOO_BIG_THRESHOLD: 1000
   COMPONENT_LABEL_THRESHOLD: 10
@@ -20,22 +19,744 @@ env:
 jobs:
   label:
     runs-on: ubuntu-latest
-    if: github.event.pull_request.state == 'open' && (github.event.action != 'labeled' || github.event.sender.type != 'Bot')
+    if: github.event.action != 'labeled' || github.event.sender.type != 'Bot'
     steps:
       - name: Checkout
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v2
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
 
       - name: Auto Label PR
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |
-            const script = require('./.github/scripts/auto-label-pr/index.js');
-            await script({ github, context });
+            const fs = require('fs');
+
+            // Constants
+            const SMALL_PR_THRESHOLD = parseInt('${{ env.SMALL_PR_THRESHOLD }}');
+            const MAX_LABELS = parseInt('${{ env.MAX_LABELS }}');
+            const TOO_BIG_THRESHOLD = parseInt('${{ env.TOO_BIG_THRESHOLD }}');
+            const COMPONENT_LABEL_THRESHOLD = parseInt('${{ env.COMPONENT_LABEL_THRESHOLD }}');
+            const BOT_COMMENT_MARKER = '<!-- auto-label-pr-bot -->';
+            const CODEOWNERS_MARKER = '<!-- codeowners-request -->';
+            const TOO_BIG_MARKER = '<!-- too-big-request -->';
+            const DEPRECATED_COMPONENT_MARKER = '<!-- deprecated-component-request -->';
+
+            const MANAGED_LABELS = [
+              'new-component',
+              'new-platform',
+              'new-target-platform',
+              'merging-to-release',
+              'merging-to-beta',
+              'chained-pr',
+              'core',
+              'small-pr',
+              'dashboard',
+              'github-actions',
+              'by-code-owner',
+              'has-tests',
+              'needs-tests',
+              'needs-docs',
+              'needs-codeowners',
+              'too-big',
+              'labeller-recheck',
+              'bugfix',
+              'new-feature',
+              'breaking-change',
+              'developer-breaking-change',
+              'code-quality',
+              'deprecated_component'
+            ];
+
+            const DOCS_PR_PATTERNS = [
+              /https:\/\/github\.com\/esphome\/esphome-docs\/pull\/\d+/,
+              /esphome\/esphome-docs#\d+/
+            ];
+
+            // Global state
+            const { owner, repo } = context.repo;
+            const pr_number = context.issue.number;
+
+            // Get current labels and PR data
+            const { data: currentLabelsData } = await github.rest.issues.listLabelsOnIssue({
+              owner,
+              repo,
+              issue_number: pr_number
+            });
+            const currentLabels = currentLabelsData.map(label => label.name);
+            const managedLabels = currentLabels.filter(label =>
+              label.startsWith('component: ') || MANAGED_LABELS.includes(label)
+            );
+
+            // Check for mega-PR early - if present, skip most automatic labeling
+            const isMegaPR = currentLabels.includes('mega-pr');
+
+            // Get all PR files with automatic pagination
+            const prFiles = await github.paginate(
+              github.rest.pulls.listFiles,
+              {
+                owner,
+                repo,
+                pull_number: pr_number
+              }
+            );
+
+            // Calculate data from PR files
+            const changedFiles = prFiles.map(file => file.filename);
+            const totalAdditions = prFiles.reduce((sum, file) => sum + (file.additions || 0), 0);
+            const totalDeletions = prFiles.reduce((sum, file) => sum + (file.deletions || 0), 0);
+            const totalChanges = totalAdditions + totalDeletions;
+
+            console.log('Current labels:', currentLabels.join(', '));
+            console.log('Changed files:', changedFiles.length);
+            console.log('Total changes:', totalChanges);
+            if (isMegaPR) {
+              console.log('Mega-PR detected - applying limited labeling logic');
+            }
+
+            // Fetch API data
+            async function fetchApiData() {
+              try {
+                const response = await fetch('https://data.esphome.io/components.json');
+                const componentsData = await response.json();
+                return {
+                  targetPlatforms: componentsData.target_platforms || [],
+                  platformComponents: componentsData.platform_components || []
+                };
+              } catch (error) {
+                console.log('Failed to fetch components data from API:', error.message);
+                return { targetPlatforms: [], platformComponents: [] };
+              }
+            }
+
+            // Strategy: Merge branch detection
+            async function detectMergeBranch() {
+              const labels = new Set();
+              const baseRef = context.payload.pull_request.base.ref;
+
+              if (baseRef === 'release') {
+                labels.add('merging-to-release');
+              } else if (baseRef === 'beta') {
+                labels.add('merging-to-beta');
+              } else if (baseRef !== 'dev') {
+                labels.add('chained-pr');
+              }
+
+              return labels;
+            }
+
+            // Strategy: Component and platform labeling
+            async function detectComponentPlatforms(apiData) {
+              const labels = new Set();
+              const componentRegex = /^esphome\/components\/([^\/]+)\//;
+              const targetPlatformRegex = new RegExp(`^esphome\/components\/(${apiData.targetPlatforms.join('|')})/`);
+
+              for (const file of changedFiles) {
+                const componentMatch = file.match(componentRegex);
+                if (componentMatch) {
+                  labels.add(`component: ${componentMatch[1]}`);
+                }
+
+                const platformMatch = file.match(targetPlatformRegex);
+                if (platformMatch) {
+                  labels.add(`platform: ${platformMatch[1]}`);
+                }
+              }
+
+              return labels;
+            }
+
+            // Strategy: New component detection
+            async function detectNewComponents() {
+              const labels = new Set();
+              const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
+
+              for (const file of addedFiles) {
+                const componentMatch = file.match(/^esphome\/components\/([^\/]+)\/__init__\.py$/);
+                if (componentMatch) {
+                  try {
+                    const content = fs.readFileSync(file, 'utf8');
+                    if (content.includes('IS_TARGET_PLATFORM = True')) {
+                      labels.add('new-target-platform');
+                    }
+                  } catch (error) {
+                    console.log(`Failed to read content of ${file}:`, error.message);
+                  }
+                  labels.add('new-component');
+                }
+              }
+
+              return labels;
+            }
+
+            // Strategy: New platform detection
+            async function detectNewPlatforms(apiData) {
+              const labels = new Set();
+              const addedFiles = prFiles.filter(file => file.status === 'added').map(file => file.filename);
+
+              for (const file of addedFiles) {
+                const platformFileMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\.py$/);
+                if (platformFileMatch) {
+                  const [, component, platform] = platformFileMatch;
+                  if (apiData.platformComponents.includes(platform)) {
+                    labels.add('new-platform');
+                  }
+                }
+
+                const platformDirMatch = file.match(/^esphome\/components\/([^\/]+)\/([^\/]+)\/__init__\.py$/);
+                if (platformDirMatch) {
+                  const [, component, platform] = platformDirMatch;
+                  if (apiData.platformComponents.includes(platform)) {
+                    labels.add('new-platform');
+                  }
+                }
+              }
+
+              return labels;
+            }
+
+            // Strategy: Core files detection
+            async function detectCoreChanges() {
+              const labels = new Set();
+              const coreFiles = changedFiles.filter(file =>
+                file.startsWith('esphome/core/') ||
+                (file.startsWith('esphome/') && file.split('/').length === 2)
+              );
+
+              if (coreFiles.length > 0) {
+                labels.add('core');
+              }
+
+              return labels;
+            }
+
+            // Strategy: PR size detection
+            async function detectPRSize() {
+              const labels = new Set();
+
+              if (totalChanges <= SMALL_PR_THRESHOLD) {
+                labels.add('small-pr');
+                return labels;
+              }
+
+              const testAdditions = prFiles
+                .filter(file => file.filename.startsWith('tests/'))
+                .reduce((sum, file) => sum + (file.additions || 0), 0);
+              const testDeletions = prFiles
+                .filter(file => file.filename.startsWith('tests/'))
+                .reduce((sum, file) => sum + (file.deletions || 0), 0);
+
+              const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
+
+              // Don't add too-big if mega-pr label is already present
+              if (nonTestChanges > TOO_BIG_THRESHOLD && !isMegaPR) {
+                labels.add('too-big');
+              }
+
+              return labels;
+            }
+
+            // Strategy: Dashboard changes
+            async function detectDashboardChanges() {
+              const labels = new Set();
+              const dashboardFiles = changedFiles.filter(file =>
+                file.startsWith('esphome/dashboard/') ||
+                file.startsWith('esphome/components/dashboard_import/')
+              );
+
+              if (dashboardFiles.length > 0) {
+                labels.add('dashboard');
+              }
+
+              return labels;
+            }
+
+            // Strategy: GitHub Actions changes
+            async function detectGitHubActionsChanges() {
+              const labels = new Set();
+              const githubActionsFiles = changedFiles.filter(file =>
+                file.startsWith('.github/workflows/')
+              );
+
+              if (githubActionsFiles.length > 0) {
+                labels.add('github-actions');
+              }
+
+              return labels;
+            }
+
+            // Strategy: Code owner detection
+            async function detectCodeOwner() {
+              const labels = new Set();
+
+              try {
+                const { data: codeownersFile } = await github.rest.repos.getContent({
+                  owner,
+                  repo,
+                  path: 'CODEOWNERS',
+                });
+
+                const codeownersContent = Buffer.from(codeownersFile.content, 'base64').toString('utf8');
+                const prAuthor = context.payload.pull_request.user.login;
+
+                const codeownersLines = codeownersContent.split('\n')
+                  .map(line => line.trim())
+                  .filter(line => line && !line.startsWith('#'));
+
+                const codeownersRegexes = codeownersLines.map(line => {
+                  const parts = line.split(/\s+/);
+                  const pattern = parts[0];
+                  const owners = parts.slice(1);
+
+                  let regex;
+                  if (pattern.endsWith('*')) {
+                    const dir = pattern.slice(0, -1);
+                    regex = new RegExp(`^${dir.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}`);
+                  } else if (pattern.includes('*')) {
+                    // First escape all regex special chars except *, then replace * with .*
+                    const regexPattern = pattern
+                      .replace(/[.+?^${}()|[\]\\]/g, '\\$&')
+                      .replace(/\*/g, '.*');
+                    regex = new RegExp(`^${regexPattern}$`);
+                  } else {
+                    regex = new RegExp(`^${pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')}$`);
+                  }
+
+                  return { regex, owners };
+                });
+
+                for (const file of changedFiles) {
+                  for (const { regex, owners } of codeownersRegexes) {
+                    if (regex.test(file) && owners.some(owner => owner === `@${prAuthor}`)) {
+                      labels.add('by-code-owner');
+                      return labels;
+                    }
+                  }
+                }
+              } catch (error) {
+                console.log('Failed to read or parse CODEOWNERS file:', error.message);
+              }
+
+              return labels;
+            }
+
+            // Strategy: Test detection
+            async function detectTests() {
+              const labels = new Set();
+              const testFiles = changedFiles.filter(file => file.startsWith('tests/'));
+
+              if (testFiles.length > 0) {
+                labels.add('has-tests');
+              }
+
+              return labels;
+            }
+
+            // Strategy: PR Template Checkbox detection
+            async function detectPRTemplateCheckboxes() {
+              const labels = new Set();
+              const prBody = context.payload.pull_request.body || '';
+
+              console.log('Checking PR template checkboxes...');
+
+              // Check for checked checkboxes in the "Types of changes" section
+              const checkboxPatterns = [
+                { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
+                { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
+                { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
+                { pattern: /- \[x\] Developer breaking change \(an API change that could break external components\)/i, label: 'developer-breaking-change' },
+                { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
+              ];
+
+              for (const { pattern, label } of checkboxPatterns) {
+                if (pattern.test(prBody)) {
+                  console.log(`Found checked checkbox for: ${label}`);
+                  labels.add(label);
+                }
+              }
+
+              return labels;
+            }
+
+            // Strategy: Deprecated component detection
+            async function detectDeprecatedComponents() {
+              const labels = new Set();
+              const deprecatedInfo = [];
+              
+              // Compile regex once for better performance
+              const componentFileRegex = /^esphome\/components\/([^\/]+)\/[^/]*\.py$/;
+              
+              // Get files that are modified or added in components directory
+              const componentFiles = changedFiles.filter(file => componentFileRegex.test(file));
+              
+              if (componentFiles.length === 0) {
+                return { labels, deprecatedInfo };
+              }
+              
+              // Extract unique component names using the same regex
+              const components = new Set();
+              for (const file of componentFiles) {
+                const match = file.match(componentFileRegex);
+                if (match) {
+                  components.add(match[1]);
+                }
+              }
+              
+              // Get PR head SHA to fetch files from the PR branch
+              const prHeadSha = context.payload.pull_request.head.sha;
+              
+              // Check each component's __init__.py for DEPRECATED_COMPONENT constant
+              for (const component of components) {
+                const initFile = `esphome/components/${component}/__init__.py`;
+                try {
+                  // Fetch file content from PR head using GitHub API
+                  const { data: fileData } = await github.rest.repos.getContent({
+                    owner,
+                    repo,
+                    path: initFile,
+                    ref: prHeadSha
+                  });
+                  
+                  // Decode base64 content
+                  const content = Buffer.from(fileData.content, 'base64').toString('utf8');
+                  
+                  // Look for DEPRECATED_COMPONENT = "message" or DEPRECATED_COMPONENT = 'message'
+                  // Support single quotes, double quotes, and triple quotes (for multiline)
+                  const doubleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*"""([\s\S]*?)"""/s) ||
+                                          content.match(/DEPRECATED_COMPONENT\s*=\s*"((?:[^"\\]|\\.)*)"/);
+                  const singleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*'''([\s\S]*?)'''/s) ||
+                                          content.match(/DEPRECATED_COMPONENT\s*=\s*'((?:[^'\\]|\\.)*)'/);
+                  const deprecatedMatch = doubleQuoteMatch || singleQuoteMatch;
+                  
+                  if (deprecatedMatch) {
+                    labels.add('deprecated_component');
+                    deprecatedInfo.push({
+                      component: component,
+                      message: deprecatedMatch[1]
+                    });
+                    console.log(`Found deprecated component: ${component}`);
+                  }
+                } catch (error) {
+                  // Only log if it's not a simple "file not found" error (404)
+                  if (error.status !== 404) {
+                    console.log(`Error reading ${initFile}:`, error.message);
+                  }
+                }
+              }
+              
+              return { labels, deprecatedInfo };
+            }
+
+            // Strategy: Requirements detection
+            async function detectRequirements(allLabels) {
+              const labels = new Set();
+
+              // Check for missing tests
+              if ((allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) && !allLabels.has('has-tests')) {
+                labels.add('needs-tests');
+              }
+
+              // Check for missing docs
+              if (allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) {
+                const prBody = context.payload.pull_request.body || '';
+                const hasDocsLink = DOCS_PR_PATTERNS.some(pattern => pattern.test(prBody));
+
+                if (!hasDocsLink) {
+                  labels.add('needs-docs');
+                }
+              }
+
+              // Check for missing CODEOWNERS
+              if (allLabels.has('new-component')) {
+                const codeownersModified = prFiles.some(file =>
+                  file.filename === 'CODEOWNERS' &&
+                  (file.status === 'modified' || file.status === 'added') &&
+                  (file.additions || 0) > 0
+                );
+
+                if (!codeownersModified) {
+                  labels.add('needs-codeowners');
+                }
+              }
+
+              return labels;
+            }
+
+            // Generate review messages
+            function generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo) {
+              const messages = [];
+              const prAuthor = context.payload.pull_request.user.login;
+
+              // Deprecated component message
+              if (finalLabels.includes('deprecated_component') && deprecatedInfo && deprecatedInfo.length > 0) {
+                let message = `${DEPRECATED_COMPONENT_MARKER}\n### ⚠️ Deprecated Component\n\n`;
+                message += `Hey there @${prAuthor},\n`;
+                message += `This PR modifies one or more deprecated components. Please be aware:\n\n`;
+                
+                for (const info of deprecatedInfo) {
+                  message += `#### Component: \`${info.component}\`\n`;
+                  message += `${info.message}\n\n`;
+                }
+                
+                message += `Consider migrating to the recommended alternative if applicable.`;
+                
+                messages.push(message);
+              }
+
+              // Too big message
+              if (finalLabels.includes('too-big')) {
+                const testAdditions = prFiles
+                  .filter(file => file.filename.startsWith('tests/'))
+                  .reduce((sum, file) => sum + (file.additions || 0), 0);
+                const testDeletions = prFiles
+                  .filter(file => file.filename.startsWith('tests/'))
+                  .reduce((sum, file) => sum + (file.deletions || 0), 0);
+                const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
+
+                const tooManyLabels = originalLabelCount > MAX_LABELS;
+                const tooManyChanges = nonTestChanges > TOO_BIG_THRESHOLD;
+
+                let message = `${TOO_BIG_MARKER}\n### 📦 Pull Request Size\n\n`;
+
+                if (tooManyLabels && tooManyChanges) {
+                  message += `This PR is too large with ${nonTestChanges} line changes (excluding tests) and affects ${originalLabelCount} different components/areas.`;
+                } else if (tooManyLabels) {
+                  message += `This PR affects ${originalLabelCount} different components/areas.`;
+                } else {
+                  message += `This PR is too large with ${nonTestChanges} line changes (excluding tests).`;
+                }
+
+                message += ` Please consider breaking it down into smaller, focused PRs to make review easier and reduce the risk of conflicts.\n\n`;
+                message += `For guidance on breaking down large PRs, see: https://developers.esphome.io/contributing/submitting-your-work/#how-to-approach-large-submissions`;
+
+                messages.push(message);
+              }
+
+              // CODEOWNERS message
+              if (finalLabels.includes('needs-codeowners')) {
+                const message = `${CODEOWNERS_MARKER}\n### 👥 Code Ownership\n\n` +
+                  `Hey there @${prAuthor},\n` +
+                  `Thanks for submitting this pull request! Can you add yourself as a codeowner for this integration? ` +
+                  `This way we can notify you if a bug report for this integration is reported.\n\n` +
+                  `In \`__init__.py\` of the integration, please add:\n\n` +
+                  `\`\`\`python\nCODEOWNERS = ["@${prAuthor}"]\n\`\`\`\n\n` +
+                  `And run \`script/build_codeowners.py\``;
+
+                messages.push(message);
+              }
+
+              return messages;
+            }
+
+            // Handle reviews
+            async function handleReviews(finalLabels, originalLabelCount, deprecatedInfo) {
+              const reviewMessages = generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo);
+              const hasReviewableLabels = finalLabels.some(label =>
+                ['too-big', 'needs-codeowners', 'deprecated_component'].includes(label)
+              );
+
+              const { data: reviews } = await github.rest.pulls.listReviews({
+                owner,
+                repo,
+                pull_number: pr_number
+              });
+
+              const botReviews = reviews.filter(review =>
+                review.user.type === 'Bot' &&
+                review.state === 'CHANGES_REQUESTED' &&
+                review.body && review.body.includes(BOT_COMMENT_MARKER)
+              );
+
+              if (hasReviewableLabels) {
+                const reviewBody = `${BOT_COMMENT_MARKER}\n\n${reviewMessages.join('\n\n---\n\n')}`;
+
+                if (botReviews.length > 0) {
+                  // Update existing review
+                  await github.rest.pulls.updateReview({
+                    owner,
+                    repo,
+                    pull_number: pr_number,
+                    review_id: botReviews[0].id,
+                    body: reviewBody
+                  });
+                  console.log('Updated existing bot review');
+                } else {
+                  // Create new review
+                  await github.rest.pulls.createReview({
+                    owner,
+                    repo,
+                    pull_number: pr_number,
+                    body: reviewBody,
+                    event: 'REQUEST_CHANGES'
+                  });
+                  console.log('Created new bot review');
+                }
+              } else if (botReviews.length > 0) {
+                // Dismiss existing reviews
+                for (const review of botReviews) {
+                  try {
+                    await github.rest.pulls.dismissReview({
+                      owner,
+                      repo,
+                      pull_number: pr_number,
+                      review_id: review.id,
+                      message: 'Review dismissed: All requirements have been met'
+                    });
+                    console.log(`Dismissed bot review ${review.id}`);
+                  } catch (error) {
+                    console.log(`Failed to dismiss review ${review.id}:`, error.message);
+                  }
+                }
+              }
+            }
+
+            // Main execution
+            const apiData = await fetchApiData();
+            const baseRef = context.payload.pull_request.base.ref;
+
+            // Early exit for release and beta branches only
+            if (baseRef === 'release' || baseRef === 'beta') {
+              const branchLabels = await detectMergeBranch();
+              const finalLabels = Array.from(branchLabels);
+
+              console.log('Computed labels (merge branch only):', finalLabels.join(', '));
+
+              // Apply labels
+              if (finalLabels.length > 0) {
+                await github.rest.issues.addLabels({
+                  owner,
+                  repo,
+                  issue_number: pr_number,
+                  labels: finalLabels
+                });
+              }
+
+              // Remove old managed labels
+              const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
+              for (const label of labelsToRemove) {
+                try {
+                  await github.rest.issues.removeLabel({
+                    owner,
+                    repo,
+                    issue_number: pr_number,
+                    name: label
+                  });
+                } catch (error) {
+                  console.log(`Failed to remove label ${label}:`, error.message);
+                }
+              }
+
+              return;
+            }
+
+            // Run all strategies
+            const [
+              branchLabels,
+              componentLabels,
+              newComponentLabels,
+              newPlatformLabels,
+              coreLabels,
+              sizeLabels,
+              dashboardLabels,
+              actionsLabels,
+              codeOwnerLabels,
+              testLabels,
+              checkboxLabels,
+              deprecatedResult
+            ] = await Promise.all([
+              detectMergeBranch(),
+              detectComponentPlatforms(apiData),
+              detectNewComponents(),
+              detectNewPlatforms(apiData),
+              detectCoreChanges(),
+              detectPRSize(),
+              detectDashboardChanges(),
+              detectGitHubActionsChanges(),
+              detectCodeOwner(),
+              detectTests(),
+              detectPRTemplateCheckboxes(),
+              detectDeprecatedComponents()
+            ]);
+
+            // Extract deprecated component info
+            const deprecatedLabels = deprecatedResult.labels;
+            const deprecatedInfo = deprecatedResult.deprecatedInfo;
+
+            // Combine all labels
+            const allLabels = new Set([
+              ...branchLabels,
+              ...componentLabels,
+              ...newComponentLabels,
+              ...newPlatformLabels,
+              ...coreLabels,
+              ...sizeLabels,
+              ...dashboardLabels,
+              ...actionsLabels,
+              ...codeOwnerLabels,
+              ...testLabels,
+              ...checkboxLabels,
+              ...deprecatedLabels
+            ]);
+
+            // Detect requirements based on all other labels
+            const requirementLabels = await detectRequirements(allLabels);
+            for (const label of requirementLabels) {
+              allLabels.add(label);
+            }
+
+            let finalLabels = Array.from(allLabels);
+
+            // For mega-PRs, exclude component labels if there are too many
+            if (isMegaPR) {
+              const componentLabels = finalLabels.filter(label => label.startsWith('component: '));
+              if (componentLabels.length > COMPONENT_LABEL_THRESHOLD) {
+                finalLabels = finalLabels.filter(label => !label.startsWith('component: '));
+                console.log(`Mega-PR detected - excluding ${componentLabels.length} component labels (threshold: ${COMPONENT_LABEL_THRESHOLD})`);
+              }
+            }
+
+            // Handle too many labels (only for non-mega PRs)
+            const tooManyLabels = finalLabels.length > MAX_LABELS;
+            const originalLabelCount = finalLabels.length;
+
+            if (tooManyLabels && !isMegaPR && !finalLabels.includes('too-big')) {
+              finalLabels = ['too-big'];
+            }
+
+            console.log('Computed labels:', finalLabels.join(', '));
+
+            // Handle reviews
+            await handleReviews(finalLabels, originalLabelCount, deprecatedInfo);
+
+            // Apply labels
+            if (finalLabels.length > 0) {
+              console.log(`Adding labels: ${finalLabels.join(', ')}`);
+              await github.rest.issues.addLabels({
+                owner,
+                repo,
+                issue_number: pr_number,
+                labels: finalLabels
+              });
+            }
+
+            // Remove old managed labels
+            const labelsToRemove = managedLabels.filter(label => !finalLabels.includes(label));
+            for (const label of labelsToRemove) {
+              console.log(`Removing label: ${label}`);
+              try {
+                await github.rest.issues.removeLabel({
+                  owner,
+                  repo,
+                  issue_number: pr_number,
+                  name: label
+                });
+              } catch (error) {
+                console.log(`Failed to remove label ${label}:`, error.message);
+              }
+            }

.github/workflows/ci-api-proto.yml

@@ -47,7 +47,7 @@ jobs:
           fi
       - if: failure()
         name: Review PR
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
             await github.rest.pulls.createReview({
@@ -62,7 +62,7 @@ jobs:
         run: git diff
       - if: failure()
         name: Archive artifacts
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: generated-proto-files
           path: |
@@ -70,7 +70,7 @@ jobs:
             esphome/components/api/api_pb2_service.*
       - if: success()
         name: Dismiss review
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
             let reviews = await github.rest.pulls.listReviews({

.github/workflows/ci-clang-tidy-hash.yml

@@ -40,9 +40,9 @@ jobs:
           echo "You have modified clang-tidy configuration but have not updated the hash." | tee -a $GITHUB_STEP_SUMMARY
           echo "Please run 'script/clang_tidy_hash.py --update' and commit the changes." | tee -a $GITHUB_STEP_SUMMARY
 
-      - if: failure() && github.event.pull_request.head.repo.full_name == github.repository
+      - if: failure()
         name: Request changes
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
             await github.rest.pulls.createReview({
@@ -53,9 +53,9 @@ jobs:
               body: 'You have modified clang-tidy configuration but have not updated the hash.\nPlease run `script/clang_tidy_hash.py --update` and commit the changes.'
             })
 
-      - if: success() && github.event.pull_request.head.repo.full_name == github.repository
+      - if: success()
         name: Dismiss review
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
             let reviews = await github.rest.pulls.listReviews({

.github/workflows/ci-docker.yml

@@ -49,7 +49,7 @@ jobs:
         with:
           python-version: "3.11"
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Set TAG
         run: |

.github/workflows/ci.yml

@@ -47,7 +47,7 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Restore Python virtual environment
         id: cache-venv
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: venv
           # yamllint disable-line rule:line-length
@@ -106,7 +106,6 @@ jobs:
           script/build_codeowners.py --check
           script/build_language_schema.py --check
           script/generate-esp32-boards.py --check
-          script/generate-rp2040-boards.py --check
 
   pytest:
     name: Run pytest
@@ -116,7 +115,6 @@ jobs:
         python-version:
           - "3.11"
           - "3.13"
-          - "3.14"
         os:
           - ubuntu-latest
           - macOS-latest
@@ -154,12 +152,12 @@ jobs:
           . venv/bin/activate
           pytest -vv --cov-report=xml --tb=native -n auto tests --ignore=tests/integration/
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
+        uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Save Python virtual environment cache
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/save@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.restore-python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -171,8 +169,6 @@ jobs:
       - common
     outputs:
       integration-tests: ${{ steps.determine.outputs.integration-tests }}
-      integration-tests-run-all: ${{ steps.determine.outputs.integration-tests-run-all }}
-      integration-test-files: ${{ steps.determine.outputs.integration-test-files }}
       clang-tidy: ${{ steps.determine.outputs.clang-tidy }}
       clang-tidy-mode: ${{ steps.determine.outputs.clang-tidy-mode }}
       python-linters: ${{ steps.determine.outputs.python-linters }}
@@ -185,7 +181,6 @@ jobs:
       cpp-unit-tests-run-all: ${{ steps.determine.outputs.cpp-unit-tests-run-all }}
       cpp-unit-tests-components: ${{ steps.determine.outputs.cpp-unit-tests-components }}
       component-test-batches: ${{ steps.determine.outputs.component-test-batches }}
-      benchmarks: ${{ steps.determine.outputs.benchmarks }}
     steps:
       - name: Check out code from GitHub
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
@@ -198,7 +193,7 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Restore components graph cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: .temp/components_graph.json
           key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
@@ -214,8 +209,6 @@ jobs:
 
           # Extract individual fields
           echo "integration-tests=$(echo "$output" | jq -r '.integration_tests')" >> $GITHUB_OUTPUT
-          echo "integration-tests-run-all=$(echo "$output" | jq -r '.integration_tests_run_all')" >> $GITHUB_OUTPUT
-          echo "integration-test-files=$(echo "$output" | jq -c '.integration_test_files')" >> $GITHUB_OUTPUT
           echo "clang-tidy=$(echo "$output" | jq -r '.clang_tidy')" >> $GITHUB_OUTPUT
           echo "clang-tidy-mode=$(echo "$output" | jq -r '.clang_tidy_mode')" >> $GITHUB_OUTPUT
           echo "python-linters=$(echo "$output" | jq -r '.python_linters')" >> $GITHUB_OUTPUT
@@ -228,10 +221,9 @@ jobs:
           echo "cpp-unit-tests-run-all=$(echo "$output" | jq -r '.cpp_unit_tests_run_all')" >> $GITHUB_OUTPUT
           echo "cpp-unit-tests-components=$(echo "$output" | jq -c '.cpp_unit_tests_components')" >> $GITHUB_OUTPUT
           echo "component-test-batches=$(echo "$output" | jq -c '.component_test_batches')" >> $GITHUB_OUTPUT
-          echo "benchmarks=$(echo "$output" | jq -r '.benchmarks')" >> $GITHUB_OUTPUT
       - name: Save components graph cache
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/save@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: .temp/components_graph.json
           key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
@@ -253,7 +245,7 @@ jobs:
           python-version: "3.13"
       - name: Restore Python virtual environment
         id: cache-venv
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -268,20 +260,9 @@ jobs:
       - name: Register matcher
         run: echo "::add-matcher::.github/workflows/matchers/pytest.json"
       - name: Run integration tests
-        env:
-          INTEGRATION_TEST_FILES: ${{ needs.determine-jobs.outputs.integration-test-files }}
-          INTEGRATION_TESTS_RUN_ALL: ${{ needs.determine-jobs.outputs.integration-tests-run-all }}
         run: |
           . venv/bin/activate
-          if [[ "$INTEGRATION_TESTS_RUN_ALL" == "true" ]]; then
-            echo "Running all integration tests"
-            pytest -vv --no-cov --tb=native -n auto tests/integration/
-          else
-            # Parse JSON array into bash array to avoid shell expansion issues
-            mapfile -t test_files < <(echo "$INTEGRATION_TEST_FILES" | jq -r '.[]')
-            echo "Running ${#test_files[@]} specific integration tests"
-            pytest -vv --no-cov --tb=native -n auto "${test_files[@]}"
-          fi
+          pytest -vv --no-cov --tb=native -n auto tests/integration/
 
   cpp-unit-tests:
     name: Run C++ unit tests
@@ -310,40 +291,6 @@ jobs:
             script/cpp_unit_test.py $ARGS
           fi
 
-  benchmarks:
-    name: Run CodSpeed benchmarks
-    runs-on: ubuntu-24.04
-    needs:
-      - common
-      - determine-jobs
-    if: >-
-      (github.event_name == 'push' && github.ref_name == 'dev') ||
-      (github.event_name == 'pull_request' && needs.determine-jobs.outputs.benchmarks == 'true')
-    steps:
-      - name: Check out code from GitHub
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-
-      - name: Restore Python
-        uses: ./.github/actions/restore-python
-        with:
-          python-version: ${{ env.DEFAULT_PYTHON }}
-          cache-key: ${{ needs.common.outputs.cache-key }}
-
-      - name: Build benchmarks
-        id: build
-        run: |
-          . venv/bin/activate
-          export BENCHMARK_LIB_CONFIG=$(python script/setup_codspeed_lib.py)
-          # --build-only prints BUILD_BINARY=<path> to stdout
-          BINARY=$(script/cpp_benchmark.py --all --build-only | grep '^BUILD_BINARY=' | tail -1 | cut -d= -f2-)
-          echo "binary=$BINARY" >> $GITHUB_OUTPUT
-
-      - name: Run CodSpeed benchmarks
-        uses: CodSpeedHQ/action@658a901452bb54c799643e060733b7afe9121b8d # v4.14.0
-        with:
-          run: ${{ steps.build.outputs.binary }}
-          mode: simulation
-
   clang-tidy-single:
     name: ${{ matrix.name }}
     runs-on: ubuntu-24.04
@@ -387,14 +334,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
 
       - name: Cache platformio
         if: github.ref != 'refs/heads/dev'
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
@@ -466,14 +413,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
 
       - name: Cache platformio
         if: github.ref != 'refs/heads/dev'
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
@@ -555,14 +502,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
 
       - name: Cache platformio
         if: github.ref != 'refs/heads/dev'
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
@@ -723,7 +670,7 @@ jobs:
           cache-key: ${{ needs.common.outputs.cache-key }}
       - uses: esphome/pre-commit-action@43cd1109c09c544d97196f7730ee5b2e0cc6d81e # v3.0.1 fork with pinned actions/cache
         env:
-          SKIP: pylint,clang-tidy-hash,ci-custom
+          SKIP: pylint,clang-tidy-hash
       - uses: pre-commit-ci/lite-action@5d6cc0eb514c891a40562a58a8e71576c5c7fb43 # v1.1.0
         if: always()
 
@@ -738,7 +685,7 @@ jobs:
       ram_usage: ${{ steps.extract.outputs.ram_usage }}
       flash_usage: ${{ steps.extract.outputs.flash_usage }}
       cache_hit: ${{ steps.cache-memory-analysis.outputs.cache-hit }}
-      skip: ${{ steps.check-script.outputs.skip || steps.check-tests.outputs.skip }}
+      skip: ${{ steps.check-script.outputs.skip }}
     steps:
       - name: Check out target branch
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
@@ -757,39 +704,10 @@ jobs:
             echo "::warning::ci_memory_impact_extract.py not found on target branch, skipping memory impact analysis"
           fi
 
-      # Check if test files exist on the target branch for the requested
-      # components and platform. When a PR adds new test files for a platform,
-      # the target branch won't have them yet, so skip instead of failing.
-      # This check must be done here (not in determine-jobs.py) because
-      # determine-jobs runs on the PR branch and cannot see what the target
-      # branch has.
-      - name: Check for test files on target branch
-        id: check-tests
-        if: steps.check-script.outputs.skip != 'true'
-        run: |
-          components='${{ toJSON(fromJSON(needs.determine-jobs.outputs.memory_impact).components) }}'
-          platform="${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}"
-          found=false
-          for component in $(echo "$components" | jq -r '.[]'); do
-            # Check for test files matching the platform (test.platform.yaml or test-*.platform.yaml)
-            for f in tests/components/${component}/test*.${platform}.yaml; do
-              if [ -f "$f" ]; then
-                found=true
-                break 2
-              fi
-            done
-          done
-          if [ "$found" = false ]; then
-            echo "skip=true" >> $GITHUB_OUTPUT
-            echo "::warning::No test files found on target branch for platform ${platform}, skipping memory impact analysis"
-          else
-            echo "skip=false" >> $GITHUB_OUTPUT
-          fi
-
-      # All remaining steps only run if script and tests exist
+      # All remaining steps only run if script exists
       - name: Generate cache key
         id: cache-key
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true'
+        if: steps.check-script.outputs.skip != 'true'
         run: |
           # Get the commit SHA of the target branch
           target_sha=$(git rev-parse HEAD)
@@ -816,14 +734,14 @@ jobs:
 
       - name: Restore cached memory analysis
         id: cache-memory-analysis
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true'
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        if: steps.check-script.outputs.skip != 'true'
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: memory-analysis-target.json
           key: ${{ steps.cache-key.outputs.cache-key }}
 
       - name: Cache status
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true'
+        if: steps.check-script.outputs.skip != 'true'
         run: |
           if [ "${{ steps.cache-memory-analysis.outputs.cache-hit }}" == "true" ]; then
             echo "✓ Cache hit! Using cached memory analysis results."
@@ -833,21 +751,21 @@ jobs:
           fi
 
       - name: Restore Python
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
+        if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
         uses: ./.github/actions/restore-python
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
 
       - name: Cache platformio
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-memory-${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}-${{ hashFiles('platformio.ini') }}
 
       - name: Build, compile, and analyze memory
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
+        if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true'
         id: build
         run: |
           . venv/bin/activate
@@ -868,8 +786,7 @@ jobs:
           python script/test_build_components.py \
             -e compile \
             -c "$component_list" \
-            -t "$platform" \
-            --base-only 2>&1 | \
+            -t "$platform" 2>&1 | \
             tee /dev/stderr | \
             python script/ci_memory_impact_extract.py \
               --output-env \
@@ -882,15 +799,15 @@ jobs:
             --platform "$platform"
 
       - name: Save memory analysis to cache
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true' && steps.build.outcome == 'success'
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        if: steps.check-script.outputs.skip != 'true' && steps.cache-memory-analysis.outputs.cache-hit != 'true' && steps.build.outcome == 'success'
+        uses: actions/cache/save@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: memory-analysis-target.json
           key: ${{ steps.cache-key.outputs.cache-key }}
 
       - name: Extract memory usage for outputs
         id: extract
-        if: steps.check-script.outputs.skip != 'true' && steps.check-tests.outputs.skip != 'true'
+        if: steps.check-script.outputs.skip != 'true'
         run: |
           if [ -f memory-analysis-target.json ]; then
             ram=$(jq -r '.ram_bytes' memory-analysis-target.json)
@@ -904,7 +821,7 @@ jobs:
           fi
 
       - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: memory-analysis-target
           path: memory-analysis-target.json
@@ -930,7 +847,7 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Cache platformio
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@8b402f58fbc84540c8b491a91e594a4576fec3d7 # v5.0.2
         with:
           path: ~/.platformio
           key: platformio-memory-${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}-${{ hashFiles('platformio.ini') }}
@@ -955,8 +872,7 @@ jobs:
           python script/test_build_components.py \
             -e compile \
             -c "$component_list" \
-            -t "$platform" \
-            --base-only 2>&1 | \
+            -t "$platform" 2>&1 | \
             tee /dev/stderr | \
             python script/ci_memory_impact_extract.py \
               --output-env \
@@ -969,7 +885,7 @@ jobs:
             --platform "$platform"
 
       - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: memory-analysis-pr
           path: memory-analysis-pr.json
@@ -999,13 +915,13 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Download target analysis JSON
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           name: memory-analysis-target
           path: ./memory-analysis
         continue-on-error: true
       - name: Download PR analysis JSON
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           name: memory-analysis-pr
           path: ./memory-analysis

.github/workflows/codeowner-approved-label-update.yml

@@ -1,81 +0,0 @@
-# Adds/removes a 'code-owner-approved' label when a component-specific
-# codeowner approves (or dismisses) a PR.
-#
-# Uses pull_request_target so that fork PRs do not require workflow approval.
-# The label is reconciled on every PR update; for review events specifically,
-# this means the label is applied on the next push after a codeowner review.
-
-name: Codeowner Approved Label
-
-on:
-  pull_request_target:
-    types: [opened, synchronize, reopened, ready_for_review]
-    branches-ignore:
-      - release
-      - beta
-
-permissions:
-  issues: write
-  pull-requests: read
-  contents: read
-
-jobs:
-  codeowner-approved:
-    name: Run
-    if: ${{ github.repository == 'esphome/esphome' }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout base branch
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          ref: ${{ github.event.pull_request.base.sha }}
-          sparse-checkout: |
-            .github/scripts/codeowners.js
-            CODEOWNERS
-
-      - name: Check codeowner approval and update label
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
-        env:
-          PR_NUMBER: ${{ github.event.pull_request.number }}
-        with:
-          script: |
-            const { loadCodeowners, determineLabelAction, LabelAction } = require('./.github/scripts/codeowners.js');
-
-            const owner = context.repo.owner;
-            const repo = context.repo.repo;
-            const pr_number = parseInt(process.env.PR_NUMBER, 10);
-            const LABEL_NAME = 'code-owner-approved';
-
-            console.log(`Processing PR #${pr_number} for codeowner approval label`);
-
-            const codeownersPatterns = loadCodeowners();
-            const action = await determineLabelAction(
-              github, owner, repo, pr_number, codeownersPatterns, LABEL_NAME
-            );
-
-            if (action === LabelAction.NONE) {
-              console.log('No label change needed');
-              return;
-            }
-
-            try {
-              if (action === LabelAction.ADD) {
-                await github.rest.issues.addLabels({
-                  owner, repo, issue_number: pr_number, labels: [LABEL_NAME]
-                });
-                console.log(`Added '${LABEL_NAME}' label`);
-              } else if (action === LabelAction.REMOVE) {
-                await github.rest.issues.removeLabel({
-                  owner, repo, issue_number: pr_number, name: LABEL_NAME
-                });
-                console.log(`Removed '${LABEL_NAME}' label`);
-              }
-            } catch (error) {
-              if (error.status === 403) {
-                console.log(`Warning: insufficient permissions to update label (expected for fork PRs)`);
-              } else if (error.status === 404) {
-                console.log(`Label '${LABEL_NAME}' not present, nothing to remove`);
-              } else {
-                throw error;
-              }
-            }

.github/workflows/codeowner-review-request.yml

@@ -13,9 +13,6 @@ on:
   # Needs to be pull_request_target to get write permissions
   pull_request_target:
     types: [opened, reopened, synchronize, ready_for_review]
-    branches-ignore:
-      - release
-      - beta
 
 permissions:
   pull-requests: write
@@ -27,17 +24,10 @@ jobs:
     if: ${{ github.repository == 'esphome/esphome' && !github.event.pull_request.draft }}
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout base branch
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          ref: ${{ github.event.pull_request.base.sha }}
-
       - name: Request reviews from component codeowners
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
-            const { loadCodeowners, getEffectiveOwners } = require('./.github/scripts/codeowners.js');
-
             const owner = context.repo.owner;
             const repo = context.repo.repo;
             const pr_number = context.payload.pull_request.number;
@@ -48,15 +38,12 @@ jobs:
             const BOT_COMMENT_MARKER = '<!-- codeowner-review-request-bot -->';
 
             try {
-              // Get the list of changed files in this PR (with pagination)
-              const files = await github.paginate(
-                github.rest.pulls.listFiles,
-                {
-                  owner,
-                  repo,
-                  pull_number: pr_number
-                }
-              );
+              // Get the list of changed files in this PR
+              const { data: files } = await github.rest.pulls.listFiles({
+                owner,
+                repo,
+                pull_number: pr_number
+              });
 
               const changedFiles = files.map(file => file.filename);
               console.log(`Found ${changedFiles.length} changed files`);
@@ -66,10 +53,32 @@ jobs:
                 return;
               }
 
-              // Parse CODEOWNERS from the checked-out base branch
-              const codeownersPatterns = loadCodeowners();
+              // Fetch CODEOWNERS file from root
+              const { data: codeownersFile } = await github.rest.repos.getContent({
+                owner,
+                repo,
+                path: 'CODEOWNERS',
+                ref: context.payload.pull_request.base.sha
+              });
+              const codeownersContent = Buffer.from(codeownersFile.content, 'base64').toString('utf8');
 
-              console.log(`Parsed ${codeownersPatterns.length} codeowner patterns`);
+              // Parse CODEOWNERS file to extract all patterns and their owners
+              const codeownersLines = codeownersContent.split('\n')
+                .map(line => line.trim())
+                .filter(line => line && !line.startsWith('#'));
+
+              const codeownersPatterns = [];
+
+              // Convert CODEOWNERS pattern to regex (robust glob handling)
+              function globToRegex(pattern) {
+                // Escape regex special characters except for glob wildcards
+                let regexStr = pattern
+                  .replace(/([.+^=!:${}()|[\]\\])/g, '\\$1') // escape regex chars
+                  .replace(/\*\*/g, '.*') // globstar
+                  .replace(/\*/g, '[^/]*') // single star
+                  .replace(/\?/g, '.'); // question mark
+                return new RegExp('^' + regexStr + '$');
+              }
 
               // Helper function to create comment body
               function createCommentBody(reviewersList, teamsList, matchedFileCount, isSuccessful = true) {
@@ -84,11 +93,50 @@ jobs:
                 }
               }
 
-              // Match changed files against CODEOWNERS patterns using last-match-wins semantics
-              const effective = getEffectiveOwners(changedFiles, codeownersPatterns);
-              const matchedOwners = effective.users;
-              const matchedTeams = effective.teams;
-              const matchedFileCount = effective.matchedFileCount;
+              for (const line of codeownersLines) {
+                const parts = line.split(/\s+/);
+                if (parts.length < 2) continue;
+
+                const pattern = parts[0];
+                const owners = parts.slice(1);
+
+                // Use robust glob-to-regex conversion
+                const regex = globToRegex(pattern);
+                codeownersPatterns.push({ pattern, regex, owners });
+              }
+
+              console.log(`Parsed ${codeownersPatterns.length} codeowner patterns`);
+
+              // Match changed files against CODEOWNERS patterns
+              const matchedOwners = new Set();
+              const matchedTeams = new Set();
+              const fileMatches = new Map(); // Track which files matched which patterns
+
+              for (const file of changedFiles) {
+                for (const { pattern, regex, owners } of codeownersPatterns) {
+                  if (regex.test(file)) {
+                    console.log(`File '${file}' matches pattern '${pattern}' with owners: ${owners.join(', ')}`);
+
+                    if (!fileMatches.has(file)) {
+                      fileMatches.set(file, []);
+                    }
+                    fileMatches.get(file).push({ pattern, owners });
+
+                    // Add owners to the appropriate set (remove @ prefix)
+                    for (const owner of owners) {
+                      const cleanOwner = owner.startsWith('@') ? owner.slice(1) : owner;
+                      if (cleanOwner.includes('/')) {
+                        // Team mention (org/team-name)
+                        const teamName = cleanOwner.split('/')[1];
+                        matchedTeams.add(teamName);
+                      } else {
+                        // Individual user
+                        matchedOwners.add(cleanOwner);
+                      }
+                    }
+                  }
+                }
+              }
 
               if (matchedOwners.size === 0 && matchedTeams.size === 0) {
                 console.log('No codeowners found for any changed files');
@@ -122,14 +170,11 @@ jobs:
               }
 
               // Check for completed reviews to avoid re-requesting users who have already reviewed
-              const reviews = await github.paginate(
-                github.rest.pulls.listReviews,
-                {
-                  owner,
-                  repo,
-                  pull_number: pr_number
-                }
-              );
+              const { data: reviews } = await github.rest.pulls.listReviews({
+                owner,
+                repo,
+                pull_number: pr_number
+              });
 
               const reviewedUsers = new Set();
               reviews.forEach(review => {
@@ -202,7 +247,7 @@ jobs:
               }
 
               const totalReviewers = reviewersList.length + teamsList.length;
-              console.log(`Requesting reviews from ${reviewersList.length} users and ${teamsList.length} teams for ${matchedFileCount} matched files`);
+              console.log(`Requesting reviews from ${reviewersList.length} users and ${teamsList.length} teams for ${fileMatches.size} matched files`);
 
               // Request reviews
               try {
@@ -234,7 +279,7 @@ jobs:
 
                 // Only add a comment if there are new codeowners to mention (not previously pinged)
                 if (reviewersList.length > 0 || teamsList.length > 0) {
-                  const commentBody = createCommentBody(reviewersList, teamsList, matchedFileCount, true);
+                  const commentBody = createCommentBody(reviewersList, teamsList, fileMatches.size, true);
 
                   await github.rest.issues.createComment({
                     owner,
@@ -252,7 +297,7 @@ jobs:
 
                   // Only try to add a comment if there are new codeowners to mention
                   if (reviewersList.length > 0 || teamsList.length > 0) {
-                    const commentBody = createCommentBody(reviewersList, teamsList, matchedFileCount, false);
+                    const commentBody = createCommentBody(reviewersList, teamsList, fileMatches.size, false);
 
                     try {
                       await github.rest.issues.createComment({

.github/workflows/codeql.yml

@@ -58,7 +58,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@95e58e9a2cdfd71adc6e0353d5c52f41a045d225 # v4.35.2
+        uses: github/codeql-action/init@19b2f06db2b6f5108140aeb04014ef02b648f789 # v4.31.11
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@95e58e9a2cdfd71adc6e0353d5c52f41a045d225 # v4.35.2
+        uses: github/codeql-action/analyze@19b2f06db2b6f5108140aeb04014ef02b648f789 # v4.31.11
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/external-component-bot.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Add external component comment
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |

.github/workflows/issue-codeowner-notify.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify codeowners for component issues
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
             const owner = context.repo.owner;

.github/workflows/lock.yml

@@ -8,4 +8,4 @@ on:
 
 jobs:
   lock:
-    uses: esphome/workflows/.github/workflows/lock.yml@3c4e8446aa1029f1c346a482034b3ee1489077ca  # 2026.4.0
+    uses: esphome/workflows/.github/workflows/lock.yml@main

.github/workflows/pr-title-check.yml

@@ -1,96 +0,0 @@
-name: PR Title Check
-
-on:
-  pull_request:
-    types: [opened, edited, synchronize, reopened]
-    branches-ignore:
-      - release
-      - beta
-
-permissions:
-  contents: read
-  pull-requests: read
-
-jobs:
-  check:
-    name: Validate PR title
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-
-      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
-        with:
-          script: |
-            const {
-              detectComponents,
-              hasCoreChanges,
-              hasDashboardChanges,
-              hasGitHubActionsChanges,
-            } = require('./.github/scripts/detect-tags.js');
-
-            const title = context.payload.pull_request.title;
-            const author = context.payload.pull_request.user.login;
-
-            // Skip bot PRs (e.g. dependabot) - they have their own title format
-            if (author === 'dependabot[bot]') {
-              return;
-            }
-
-            // Block titles starting with "word:" or "word(scope):" patterns
-            const commitStylePattern = /^\w+(\(.*?\))?[!]?\s*:/;
-            if (commitStylePattern.test(title)) {
-              core.setFailed(
-                `PR title should not start with a "prefix:" style format.\n` +
-                `Please use the format: [component] Brief description\n`
-              );
-              return;
-            }
-
-            // Get changed files to detect tags
-            const files = await github.paginate(github.rest.pulls.listFiles, {
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              pull_number: context.issue.number,
-            });
-            const filenames = files.map(f => f.filename);
-
-            // Detect tags from changed files using shared logic
-            const tags = new Set();
-
-            for (const comp of detectComponents(filenames)) {
-              tags.add(comp);
-            }
-            if (hasCoreChanges(filenames)) tags.add('core');
-            if (hasDashboardChanges(filenames)) tags.add('dashboard');
-            if (hasGitHubActionsChanges(filenames)) tags.add('ci');
-
-            if (tags.size === 0) {
-              return;
-            }
-
-            // Check for angle brackets not wrapped in backticks.
-            // Astro docs MDX treats bare < as JSX component opening tags.
-            const stripped = title.replace(/`[^`]*`/g, '');
-            if (/[<>]/.test(stripped)) {
-              core.setFailed(
-                'PR title contains `<` or `>` not wrapped in backticks.\n' +
-                'Astro docs MDX interprets bare `<` as JSX components.\n' +
-                'Please wrap angle brackets with backticks, e.g.: [component] Add `<feature>` support'
-              );
-              return;
-            }
-
-            // Check title starts with [tag] prefix
-            const bracketPattern = /^\[\w+\]/;
-            if (!bracketPattern.test(title)) {
-              const suggestion = [...tags].map(c => `[${c}]`).join('');
-              // Skip if the suggested prefix would be too long for a readable title
-              if (suggestion.length > 40) {
-                return;
-              }
-              core.setFailed(
-                `PR modifies: ${[...tags].join(', ')}\n` +
-                `Title must start with a [tag] prefix.\n` +
-                `Suggested: ${suggestion} <description>`
-              );
-            }

.github/workflows/release.yml

@@ -70,7 +70,7 @@ jobs:
           pip3 install build
           python3 -m build
       - name: Publish
-        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
+        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # v1.13.0
         with:
           skip-existing: true
 
@@ -99,15 +99,15 @@ jobs:
           python-version: "3.11"
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Log in to docker hub
-        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Log in to the GitHub container registry
-        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -138,7 +138,7 @@ jobs:
       #     version: ${{ needs.init.outputs.tag }}
 
       - name: Upload digests
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
         with:
           name: digests-${{ matrix.platform.arch }}
           path: /tmp/digests
@@ -171,24 +171,24 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
       - name: Download digests
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
         with:
           pattern: digests-*
           path: /tmp/digests
           merge-multiple: true
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0
+        uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f # v3.12.0
 
       - name: Log in to docker hub
         if: matrix.registry == 'dockerhub'
-        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:
           username: ${{ secrets.DOCKER_USER }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Log in to the GitHub container registry
         if: matrix.registry == 'ghcr'
-        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
+        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -221,7 +221,7 @@ jobs:
     steps:
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v3.1.1
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
@@ -229,7 +229,7 @@ jobs:
           repositories: home-assistant-addon
 
       - name: Trigger Workflow
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |
@@ -256,7 +256,7 @@ jobs:
     steps:
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v3.1.1
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
@@ -264,7 +264,7 @@ jobs:
           repositories: esphome-schema
 
       - name: Trigger Workflow
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |
@@ -287,7 +287,7 @@ jobs:
     steps:
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@1b10c78c7865c340bc4f6099eb2f838309f1e8c3 # v3.1.1
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
@@ -295,7 +295,7 @@ jobs:
           repositories: version-notifier
 
       - name: Trigger Workflow
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |

.github/workflows/stale.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Stale
-        uses: actions/stale@b5d41d4e1d5dceea10e7104786b73624c18a190f # v10.2.0
+        uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           debug-only: ${{ github.ref != 'refs/heads/dev' }} # Dry-run when not run on dev branch
           remove-stale-when-updated: true

.github/workflows/status-check-labels.yml

@@ -2,29 +2,30 @@ name: Status check labels
 
 on:
   pull_request:
-    types: [opened, reopened, labeled, unlabeled, synchronize]
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
-  cancel-in-progress: true
+    types: [labeled, unlabeled]
 
 jobs:
   check:
-    name: Check blocking labels
+    name: Check ${{ matrix.label }}
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        label:
+          - needs-docs
+          - merge-after-release
+          - chained-pr
     steps:
-      - name: Check for blocking labels
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+      - name: Check for ${{ matrix.label }} label
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           script: |
-            const blockingLabels = ['needs-docs', 'merge-after-release', 'chained-pr'];
             const { data: labels } = await github.rest.issues.listLabelsOnIssue({
               owner: context.repo.owner,
               repo: context.repo.repo,
               issue_number: context.issue.number
             });
-            const labelNames = labels.map(l => l.name);
-            const found = blockingLabels.filter(bl => labelNames.includes(bl));
-            if (found.length > 0) {
-              core.setFailed(`Pull request cannot be merged, it has blocking label(s): ${found.join(', ')}`);
+            const hasLabel = labels.find(label => label.name === '${{ matrix.label }}');
+            if (hasLabel) {
+              core.setFailed('Pull request cannot be merged, it is labeled as ${{ matrix.label }}');
             }

.github/workflows/sync-device-classes.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup Python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.14"
+          python-version: 3.13
 
       - name: Install Home Assistant
         run: |
@@ -41,7 +41,7 @@ jobs:
           python script/run-in-env.py pre-commit run --all-files
 
       - name: Commit changes
-        uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
+        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8.1.0
         with:
           commit-message: "Synchronise Device Classes from Home Assistant"
           committer: esphomebot <esphome@openhomefoundation.org>

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.15.11
+    rev: v0.14.14
     hooks:
       # Run the linter.
       - id: ruff
@@ -37,7 +37,7 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.21.2
+    rev: v3.20.0
     hooks:
       - id: pyupgrade
         args: [--py311-plus]
@@ -58,7 +58,6 @@ repos:
         entry: python3 script/run-in-env.py pylint
         language: system
         types: [python]
-        files: ^esphome/.+\.py$
       - id: clang-tidy-hash
         name: Update clang-tidy hash
         entry: python script/clang_tidy_hash.py --update-if-changed
@@ -66,7 +65,3 @@ repos:
         files: ^(\.clang-tidy|platformio\.ini|requirements_dev\.txt)$
         pass_filenames: false
         additional_dependencies: []
-      - id: ci-custom
-        name: ci-custom
-        entry: python3 script/run-in-env.py script/ci-custom.py
-        language: system

CODEOWNERS

@@ -54,8 +54,6 @@ esphome/components/atm90e32/* @circuitsetup @descipher
 esphome/components/audio/* @kahrendt
 esphome/components/audio_adc/* @kbx81
 esphome/components/audio_dac/* @kbx81
-esphome/components/audio_file/* @kahrendt
-esphome/components/audio_file/media_source/* @kahrendt
 esphome/components/axs15231/* @clydebarrow
 esphome/components/b_parasite/* @rbaron
 esphome/components/ballu/* @bazuchan
@@ -92,7 +90,6 @@ esphome/components/bmp3xx_i2c/* @latonita
 esphome/components/bmp3xx_spi/* @latonita
 esphome/components/bmp581_base/* @danielkent-net @kahrendt
 esphome/components/bmp581_i2c/* @danielkent-net @kahrendt
-esphome/components/bmp581_spi/* @danielkent-net @kahrendt
 esphome/components/bp1658cj/* @Cossid
 esphome/components/bp5758d/* @Cossid
 esphome/components/bthome_mithermometer/* @nagyrobi
@@ -107,7 +104,6 @@ esphome/components/cc1101/* @gabest11 @lygris
 esphome/components/ccs811/* @habbie
 esphome/components/cd74hc4067/* @asoehlke
 esphome/components/ch422g/* @clydebarrow @jesterret
-esphome/components/ch423/* @dwmw2
 esphome/components/chsc6x/* @kkosik20
 esphome/components/climate/* @esphome/core
 esphome/components/climate_ir/* @glmnet
@@ -133,22 +129,19 @@ esphome/components/dashboard_import/* @esphome/core
 esphome/components/datetime/* @jesserockz @rfdarter
 esphome/components/debug/* @esphome/core
 esphome/components/delonghi/* @grob6000
-esphome/components/dew_point/* @CFlix
 esphome/components/dfplayer/* @glmnet
 esphome/components/dfrobot_sen0395/* @niklasweber
 esphome/components/dht/* @OttoWinter
 esphome/components/display_menu_base/* @numo68
-esphome/components/dlms_meter/* @SimonFischer04
 esphome/components/dps310/* @kbx81
 esphome/components/ds1307/* @badbadc0ffee
 esphome/components/ds2484/* @mrk-its
-esphome/components/dsmr/* @glmnet @PolarGoose
+esphome/components/dsmr/* @glmnet @PolarGoose @zuidwijk
 esphome/components/duty_time/* @dudanov
 esphome/components/ee895/* @Stock-M
 esphome/components/ektf2232/touchscreen/* @jesserockz
 esphome/components/emc2101/* @ellull
 esphome/components/emmeti/* @E440QF
-esphome/components/emontx/* @FredM67 @glynhudson @TrystanLea
 esphome/components/ens160/* @latonita
 esphome/components/ens160_base/* @latonita @vincentscode
 esphome/components/ens160_i2c/* @latonita
@@ -218,8 +211,6 @@ esphome/components/hbridge/light/* @DotNetDann
 esphome/components/hbridge/switch/* @dwmw2
 esphome/components/hc8/* @omartijn
 esphome/components/hdc2010/* @optimusprimespace @ssieb
-esphome/components/hdc2080/* @G-Pereira @jesserockz
-esphome/components/hdc302x/* @joshuasing
 esphome/components/he60r/* @clydebarrow
 esphome/components/heatpumpir/* @rob-deutsch
 esphome/components/hitachi_ac424/* @sourabhjaiswal
@@ -247,6 +238,7 @@ esphome/components/hyt271/* @Philippe12
 esphome/components/i2c/* @esphome/core
 esphome/components/i2c_device/* @gabest11
 esphome/components/i2s_audio/* @jesserockz
+esphome/components/i2s_audio/media_player/* @jesserockz
 esphome/components/i2s_audio/microphone/* @jesserockz
 esphome/components/i2s_audio/speaker/* @jesserockz @kahrendt
 esphome/components/iaqcore/* @yozik04
@@ -321,7 +313,6 @@ esphome/components/mcp9808/* @k7hpn
 esphome/components/md5/* @esphome/core
 esphome/components/mdns/* @esphome/core
 esphome/components/media_player/* @jesserockz
-esphome/components/media_source/* @kahrendt
 esphome/components/micro_wake_word/* @jesserockz @kahrendt
 esphome/components/micronova/* @edenhaus @jorre05
 esphome/components/microphone/* @jesserockz @kahrendt
@@ -332,7 +323,6 @@ esphome/components/mipi_dsi/* @clydebarrow
 esphome/components/mipi_rgb/* @clydebarrow
 esphome/components/mipi_spi/* @clydebarrow
 esphome/components/mitsubishi/* @RubyBailey
-esphome/components/mitsubishi_cn105/* @crnjan
 esphome/components/mixer/speaker/* @kahrendt
 esphome/components/mlx90393/* @functionpointer
 esphome/components/mlx90614/* @jesserockz
@@ -414,13 +404,11 @@ esphome/components/restart/* @esphome/core
 esphome/components/rf_bridge/* @jesserockz
 esphome/components/rgbct/* @jesserockz
 esphome/components/rp2040/* @jesserockz
-esphome/components/rp2040_ble/* @bdraco
 esphome/components/rp2040_pio_led_strip/* @Papa-DMan
 esphome/components/rp2040_pwm/* @jesserockz
 esphome/components/rpi_dpi_rgb/* @clydebarrow
 esphome/components/rtl87xx/* @kuba2k2
-esphome/components/rtttl/* @glmnet @ximex
-esphome/components/runtime_image/* @clydebarrow @guillempages @kahrendt
+esphome/components/rtttl/* @glmnet
 esphome/components/runtime_stats/* @bdraco
 esphome/components/rx8130/* @beormund
 esphome/components/safe_mode/* @jsuanet @kbx81 @paulmonigatti
@@ -437,10 +425,8 @@ esphome/components/select/* @esphome/core
 esphome/components/sen0321/* @notjj
 esphome/components/sen21231/* @shreyaskarnik
 esphome/components/sen5x/* @martgras
-esphome/components/sen6x/* @martgras @mebner86 @mikelawrence @tuct
 esphome/components/sensirion_common/* @martgras
 esphome/components/sensor/* @esphome/core
-esphome/components/serial_proxy/* @kbx81
 esphome/components/sfa30/* @ghsensdev
 esphome/components/sgp40/* @SenexCrenshaw
 esphome/components/sgp4x/* @martgras @SenexCrenshaw
@@ -461,12 +447,8 @@ esphome/components/sn74hc165/* @jesserockz
 esphome/components/socket/* @esphome/core
 esphome/components/sonoff_d1/* @anatoly-savchenkov
 esphome/components/sound_level/* @kahrendt
-esphome/components/spa06_base/* @danielkent-net
-esphome/components/spa06_i2c/* @danielkent-net
-esphome/components/spa06_spi/* @danielkent-net
 esphome/components/speaker/* @jesserockz @kahrendt
 esphome/components/speaker/media_player/* @kahrendt @synesthesiam
-esphome/components/speaker_source/* @kahrendt
 esphome/components/spi/* @clydebarrow @esphome/core
 esphome/components/spi_device/* @clydebarrow
 esphome/components/spi_led_strip/* @clydebarrow
@@ -548,7 +530,7 @@ esphome/components/uart/packet_transport/* @clydebarrow
 esphome/components/udp/* @clydebarrow
 esphome/components/ufire_ec/* @pvizeli
 esphome/components/ufire_ise/* @pvizeli
-esphome/components/ultrasonic/* @ssieb @swoboda1337
+esphome/components/ultrasonic/* @OttoWinter
 esphome/components/update/* @jesserockz
 esphome/components/uponor_smatrix/* @kroimon
 esphome/components/usb_cdc_acm/* @kbx81
@@ -597,7 +579,6 @@ esphome/components/xl9535/* @mreditor97
 esphome/components/xpt2046/touchscreen/* @nielsnl68 @numo68
 esphome/components/xxtea/* @clydebarrow
 esphome/components/zephyr/* @tomaszduda23
-esphome/components/zephyr_mcumgr/ota/* @tomaszduda23
 esphome/components/zhlt01/* @cfeenstra1024
 esphome/components/zigbee/* @tomaszduda23
 esphome/components/zio_ultrasonic/* @kahrendt

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2026.5.0-dev
+PROJECT_NUMBER         = 2026.2.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

README.md

@@ -1,4 +1,4 @@
-# ESPHome [![Discord Chat](https://img.shields.io/discord/429907082951524364.svg)](https://discord.gg/KhAMKrd) [![GitHub release](https://img.shields.io/github/release/esphome/esphome.svg)](https://GitHub.com/esphome/esphome/releases/) [![CodSpeed](https://img.shields.io/endpoint?url=https://codspeed.io/badge.json)](https://codspeed.io/esphome/esphome)
+# ESPHome [![Discord Chat](https://img.shields.io/discord/429907082951524364.svg)](https://discord.gg/KhAMKrd) [![GitHub release](https://img.shields.io/github/release/esphome/esphome.svg)](https://GitHub.com/esphome/esphome/releases/)
 
 <a href="https://esphome.io/">
   <picture>

docker/Dockerfile

@@ -9,8 +9,7 @@ FROM ghcr.io/esphome/docker-base:${BUILD_OS}-ha-addon-${BUILD_BASE_VERSION} AS b
 ARG BUILD_TYPE
 FROM base-source-${BUILD_TYPE} AS base
 
-RUN git config --system --add safe.directory "*" \
-    && git config --system advice.detachedHead false
+RUN git config --system --add safe.directory "*"
 
 # Install build tools for Python packages that require compilation
 # (e.g., ruamel.yaml.clibz used by ESP-IDF's idf-component-manager)
@@ -24,7 +23,7 @@ RUN if command -v apk > /dev/null; then \
 
 ENV PIP_DISABLE_PIP_VERSION_CHECK=1
 
-RUN pip install --no-cache-dir -U pip uv==0.10.1
+RUN pip install --no-cache-dir -U pip uv==0.6.14
 
 COPY requirements.txt /
 

esphome/__main__.py

@@ -1,7 +1,6 @@
 # PYTHON_ARGCOMPLETE_OK
 import argparse
 from collections.abc import Callable
-from contextlib import suppress
 from datetime import datetime
 import functools
 import getpass
@@ -10,8 +9,6 @@ import logging
 import os
 from pathlib import Path
 import re
-import shutil
-import subprocess
 import sys
 import time
 from typing import Protocol
@@ -26,7 +23,6 @@ import esphome.codegen as cg
 from esphome.config import iter_component_configs, read_config, strip_default_ids
 from esphome.const import (
     ALLOWED_NAME_CHARS,
-    ARGUMENT_HELP_DEVICE,
     CONF_API,
     CONF_BAUD_RATE,
     CONF_BROKER,
@@ -47,9 +43,7 @@ from esphome.const import (
     CONF_SUBSTITUTIONS,
     CONF_TOPIC,
     ENV_NOGITIGNORE,
-    KEY_CORE,
     KEY_NATIVE_IDF,
-    KEY_TARGET_PLATFORM,
     PLATFORM_ESP32,
     PLATFORM_ESP8266,
     PLATFORM_RP2040,
@@ -61,11 +55,7 @@ from esphome.helpers import get_bool_env, indent, is_ip_address
 from esphome.log import AnsiFore, color, setup_log
 from esphome.types import ConfigType
 from esphome.util import (
-    PICOTOOL_PACKAGE,
-    detect_rp2040_bootsel,
-    get_picotool_path,
     get_serial_ports,
-    is_picotool_usb_permission_error,
     list_yaml_files,
     run_external_command,
     run_external_process,
@@ -74,26 +64,9 @@ from esphome.util import (
 
 _LOGGER = logging.getLogger(__name__)
 
-ESPHOME_COMMAND = [sys.executable, "-m", "esphome"]
-
 # Maximum buffer size for serial log reading to prevent unbounded memory growth
 SERIAL_BUFFER_MAX_SIZE = 65536
 
-_RP2040_BOOTSEL_INSTRUCTIONS = (
-    "To enter BOOTSEL mode:\n"
-    "  1. Unplug the device\n"
-    "  2. Hold the BOOT/BOOTSEL button\n"
-    "  3. Plug in the USB cable while holding the button\n"
-    "  4. Release the button - the device should appear as a USB drive (RPI-RP2)\n"
-    "Then run the upload command again."
-)
-
-_RP2040_UDEV_HINT = (
-    "You may need to add a udev rule for RP2040 devices. "
-    "See: https://github.com/raspberrypi/picotool"
-    "/blob/master/udev/60-picotool.rules"
-)
-
 # Special non-component keys that appear in configs
 _NON_COMPONENT_KEYS = frozenset(
     {
@@ -189,7 +162,6 @@ class PortType(StrEnum):
     NETWORK = "NETWORK"
     MQTT = "MQTT"
     MQTTIP = "MQTTIP"
-    BOOTSEL = "BOOTSEL"
 
 
 # Magic MQTT port types that require special handling
@@ -268,19 +240,6 @@ def choose_upload_log_host(
         (f"{port.path} ({port.description})", port.path) for port in get_serial_ports()
     ]
 
-    # Add RP2040 BOOTSEL device option when uploading
-    bootsel_permission_error = False
-    if (
-        purpose == Purpose.UPLOADING
-        and CORE.data.get(KEY_CORE, {}).get(KEY_TARGET_PLATFORM) == PLATFORM_RP2040
-        and (picotool := _find_picotool()) is not None
-    ):
-        bootsel = detect_rp2040_bootsel(picotool)
-        if bootsel.device_count > 0:
-            options.append(("RP2040 BOOTSEL (via picotool)", "BOOTSEL"))
-        elif bootsel.permission_error:
-            bootsel_permission_error = True
-
     if purpose == Purpose.LOGGING:
         if has_mqtt_logging():
             mqtt_config = CORE.config[CONF_MQTT]
@@ -298,25 +257,6 @@ def choose_upload_log_host(
         if has_mqtt_ip_lookup():
             options.append(("Over The Air (MQTT IP lookup)", "MQTTIP"))
 
-    # Show helpful BOOTSEL instructions for RP2040 when no BOOTSEL device is found
-    if (
-        purpose == Purpose.UPLOADING
-        and CORE.data.get(KEY_CORE, {}).get(KEY_TARGET_PLATFORM) == PLATFORM_RP2040
-        and not any(get_port_type(opt[1]) == PortType.BOOTSEL for opt in options)
-    ):
-        if bootsel_permission_error:
-            _LOGGER.warning(
-                "An RP2040 device in BOOTSEL mode was detected but could "
-                "not be accessed due to USB permissions."
-            )
-            if sys.platform.startswith("linux"):
-                _LOGGER.warning(_RP2040_UDEV_HINT)
-        if not options:
-            raise EsphomeError(
-                f"No RP2040 device found. {_RP2040_BOOTSEL_INSTRUCTIONS}"
-            )
-        _LOGGER.info("Tip: %s", _RP2040_BOOTSEL_INSTRUCTIONS)
-
     if check_default is not None and check_default in [opt[1] for opt in options]:
         return [check_default]
     return [choose_prompt(options, purpose=purpose)]
@@ -354,13 +294,8 @@ def has_api() -> bool:
 
 
 def has_ota() -> bool:
-    """Check if OTA upload is available (requires platform: esphome)."""
-    if CONF_OTA not in CORE.config:
-        return False
-    return any(
-        ota_item.get(CONF_PLATFORM) == CONF_ESPHOME
-        for ota_item in CORE.config[CONF_OTA]
-    )
+    """Check if OTA is available."""
+    return CONF_OTA in CORE.config
 
 
 def has_mqtt_ip_lookup() -> bool:
@@ -463,13 +398,10 @@ def get_port_type(port: str) -> PortType:
 
     Returns:
         PortType.SERIAL for serial ports (/dev/ttyUSB0, COM1, etc.)
-        PortType.BOOTSEL for RP2040 BOOTSEL upload via picotool
         PortType.MQTT for MQTT logging
         PortType.MQTTIP for MQTT IP lookup
         PortType.NETWORK for IP addresses, hostnames, or mDNS names
     """
-    if port == "BOOTSEL":
-        return PortType.BOOTSEL
     if port.startswith("/") or port.startswith("COM"):
         return PortType.SERIAL
     if port == "MQTT":
@@ -494,14 +426,6 @@ def run_miniterm(config: ConfigType, port: str, args) -> int:
         return 1
     _LOGGER.info("Starting log output from %s with baud rate %s", port, baud_rate)
 
-    process_stacktrace = None
-
-    try:
-        module = importlib.import_module("esphome.components." + CORE.target_platform)
-        process_stacktrace = getattr(module, "process_stacktrace")
-    except AttributeError:
-        pass
-
     backtrace_state = False
     ser = serial.Serial()
     ser.baudrate = baud_rate
@@ -543,14 +467,9 @@ def run_miniterm(config: ConfigType, port: str, args) -> int:
                             )
                             safe_print(parser.parse_line(line, time_str))
 
-                            if process_stacktrace:
-                                backtrace_state = process_stacktrace(
-                                    config, line, backtrace_state
-                                )
-                            else:
-                                backtrace_state = platformio_api.process_stacktrace(
-                                    config, line, backtrace_state=backtrace_state
-                                )
+                            backtrace_state = platformio_api.process_stacktrace(
+                                config, line, backtrace_state=backtrace_state
+                            )
                     except serial.SerialException:
                         _LOGGER.error("Serial port closed!")
                         return 0
@@ -690,47 +609,6 @@ def _check_and_emit_build_info() -> None:
     )
 
 
-def _get_configured_xtal_freq() -> int | None:
-    """Read the configured crystal frequency from the sdkconfig file."""
-    sdkconfig_path = CORE.relative_build_path(f"sdkconfig.{CORE.name}")
-    if not sdkconfig_path.is_file():
-        return None
-    with suppress(OSError, ValueError):
-        content = sdkconfig_path.read_text()
-        for line in content.splitlines():
-            if line.startswith("CONFIG_XTAL_FREQ="):
-                return int(line.split("=", 1)[1])
-    return None
-
-
-def _make_crystal_freq_callback(
-    configured_freq: int,
-) -> Callable[[str], str | None]:
-    """Create a callback that checks esptool crystal frequency output."""
-    crystal_re = re.compile(r"Crystal frequency:\s+(\d+)\s*MHz")
-
-    def check_crystal_line(line: str) -> str | None:
-        if not (match := crystal_re.search(line)):
-            return None
-        detected = int(match.group(1))
-        if detected == configured_freq:
-            return None
-        return (
-            f"\n\033[33mWARNING: Crystal frequency mismatch! "
-            f"Device reports {detected}MHz but firmware is configured "
-            f"for {configured_freq}MHz.\n"
-            f"UART logging and other clock-dependent features will not "
-            f"work correctly.\n"
-            f"Set the correct crystal frequency with sdkconfig_options:\n"
-            f"  esp32:\n"
-            f"    framework:\n"
-            f"      sdkconfig_options:\n"
-            f"        CONFIG_XTAL_FREQ_{detected}: 'y'\033[0m\n\n"
-        )
-
-    return check_crystal_line
-
-
 def upload_using_esptool(
     config: ConfigType, port: str, file: str, speed: int
 ) -> str | int:
@@ -750,15 +628,8 @@ def upload_using_esptool(
             platformio_api.FlashImage(
                 path=idedata.firmware_bin_path, offset=firmware_offset
             ),
+            *idedata.extra_flash_images,
         ]
-        for image in idedata.extra_flash_images:
-            if not image.path.is_file():
-                _LOGGER.warning(
-                    "Skipping missing flash image declared by platform: %s",
-                    image.path,
-                )
-                continue
-            flash_images.append(image)
 
     mcu = "esp8266"
     if CORE.is_esp32:
@@ -766,14 +637,6 @@ def upload_using_esptool(
 
         mcu = get_esp32_variant().lower()
 
-    line_callbacks: list[Callable[[str], str | None]] = []
-    if (
-        CORE.is_esp32
-        and file is None
-        and (configured_freq := _get_configured_xtal_freq()) is not None
-    ):
-        line_callbacks.append(_make_crystal_freq_callback(configured_freq))
-
     def run_esptool(baud_rate):
         cmd = [
             "esptool",
@@ -798,13 +661,9 @@ def upload_using_esptool(
         if os.environ.get("ESPHOME_USE_SUBPROCESS") is None:
             import esptool
 
-            return run_external_command(
-                esptool.main,  # pylint: disable=no-member
-                *cmd,
-                line_callbacks=line_callbacks,
-            )
+            return run_external_command(esptool.main, *cmd)  # pylint: disable=no-member
 
-        return run_external_process(*cmd, line_callbacks=line_callbacks)
+        return run_external_process(*cmd)
 
     rc = run_esptool(first_baudrate)
     if rc == 0 or first_baudrate == 115200:
@@ -817,140 +676,15 @@ def upload_using_esptool(
     return run_esptool(115200)
 
 
-def upload_using_platformio(config: ConfigType, port: str) -> int:
+def upload_using_platformio(config: ConfigType, port: str):
     from esphome import platformio_api
 
-    # RP2040 platform-raspberrypi build recipe expects firmware.bin.signed for
-    # the upload target, but 'nobuild' skips the build phase that creates it.
-    # Create it here so the upload doesn't fail.
-    if CORE.data.get(KEY_CORE, {}).get(KEY_TARGET_PLATFORM) == PLATFORM_RP2040:
-        idedata = platformio_api.get_idedata(config)
-        build_dir = Path(idedata.firmware_elf_path).parent
-        firmware_bin = build_dir / "firmware.bin"
-        signed_bin = build_dir / "firmware.bin.signed"
-        if firmware_bin.is_file() and not signed_bin.is_file():
-            shutil.copy2(firmware_bin, signed_bin)
-
     upload_args = ["-t", "upload", "-t", "nobuild"]
     if port is not None:
         upload_args += ["--upload-port", port]
     return platformio_api.run_platformio_cli_run(config, CORE.verbose, *upload_args)
 
 
-def _find_picotool() -> Path | None:
-    """Find the picotool binary from PlatformIO packages."""
-    from esphome import platformio_api
-
-    try:
-        idedata = platformio_api.get_idedata(CORE.config)
-    except Exception:  # noqa: BLE001  # pylint: disable=broad-except
-        return None
-    return get_picotool_path(idedata.cc_path)
-
-
-def upload_using_picotool(config: ConfigType) -> int:
-    """Upload firmware to RP2040 in BOOTSEL mode using picotool.
-
-    Uses picotool to load the ELF firmware directly via USB, avoiding
-    the mass storage copy approach that causes "disk not ejected properly"
-    warnings on macOS.
-    """
-    from esphome import platformio_api
-
-    idedata = platformio_api.get_idedata(config)
-    firmware_elf = Path(idedata.firmware_elf_path)
-
-    if not firmware_elf.is_file():
-        _LOGGER.error(
-            "Firmware ELF file not found at %s. "
-            "Make sure the project has been compiled first.",
-            firmware_elf,
-        )
-        return 1
-
-    picotool = get_picotool_path(idedata.cc_path)
-    if picotool is None:
-        _LOGGER.error(
-            "picotool not found. Ensure the RP2040 PlatformIO platform "
-            "is installed (%s).",
-            PICOTOOL_PACKAGE,
-        )
-        return 1
-
-    _LOGGER.info("Uploading firmware to RP2040 via picotool...")
-    try:
-        # Don't capture stdout — let picotool write directly to the terminal
-        # so progress bars display in real-time with \r updates.
-        # Capture stderr only so we can detect permission errors.
-        result = subprocess.run(
-            [str(picotool), "load", "-v", "-x", str(firmware_elf)],
-            stderr=subprocess.PIPE,
-            timeout=60,
-            check=False,
-        )
-    except subprocess.TimeoutExpired:
-        _LOGGER.error("picotool upload timed out after 60 seconds.")
-        return 1
-    except OSError as err:
-        _LOGGER.error("Failed to run picotool: %s", err)
-        return 1
-
-    if result.returncode != 0:
-        stderr = result.stderr.decode("utf-8", errors="replace").strip()
-        if stderr:
-            for line in stderr.splitlines():
-                safe_print(line)
-        if is_picotool_usb_permission_error(stderr):
-            msg = "Permission denied accessing USB device."
-            if sys.platform.startswith("linux"):
-                msg += f" {_RP2040_UDEV_HINT}"
-            _LOGGER.error(msg)
-        else:
-            _LOGGER.error("picotool upload failed (exit code %d).", result.returncode)
-        return 1
-
-    return 0
-
-
-def _wait_for_serial_port(
-    port: str | None = None,
-    timeout: float = 30.0,
-    known_ports: set[str] | None = None,
-) -> None:
-    """Wait for a serial port to appear, e.g. after a device reboot.
-
-    USB-CDC devices disappear briefly after flashing while the device
-    reboots and re-enumerates on the USB bus.
-
-    If port is given, wait for that specific path. If known_ports is
-    given, wait for a new port that wasn't in the set. Otherwise wait
-    for any serial port to appear.
-    """
-
-    def _port_found() -> bool:
-        if port is not None:
-            if os.name == "posix":
-                return os.path.exists(port)
-            return any(p.path == port for p in get_serial_ports())
-        ports = get_serial_ports()
-        if known_ports is not None:
-            return any(p.path not in known_ports for p in ports)
-        return bool(ports)
-
-    if _port_found():
-        return
-    if port is not None:
-        _LOGGER.info("Waiting for %s to come online...", port)
-    else:
-        _LOGGER.info("Waiting for device to reboot...")
-    start = time.monotonic()
-    while time.monotonic() - start < timeout:
-        time.sleep(0.05)
-        if _port_found():
-            time.sleep(0.05)
-            return
-
-
 def check_permissions(port: str):
     if os.name == "posix" and get_port_type(port) == PortType.SERIAL:
         # Check if we can open selected serial port
@@ -980,15 +714,7 @@ def upload_program(
     except AttributeError:
         pass
 
-    port_type = get_port_type(host)
-
-    if port_type == PortType.BOOTSEL:
-        exit_code = upload_using_picotool(config)
-        # Return None for device - BOOTSEL can't be used for logging,
-        # so command_run will show the interactive chooser for log source
-        return exit_code, None
-
-    if port_type == PortType.SERIAL:
+    if get_port_type(host) == PortType.SERIAL:
         check_permissions(host)
 
         exit_code = 1
@@ -1042,7 +768,6 @@ def show_logs(config: ConfigType, args: ArgsProtocol, devices: list[str]) -> int
     port_type = get_port_type(port)
 
     if port_type == PortType.SERIAL:
-        _wait_for_serial_port(port)
         check_permissions(port)
         return run_miniterm(config, port, args)
 
@@ -1053,11 +778,7 @@ def show_logs(config: ConfigType, args: ArgsProtocol, devices: list[str]) -> int
     ):
         from esphome.components.api.client import run_logs
 
-        return run_logs(
-            config,
-            network_devices,
-            subscribe_states=not getattr(args, "no_states", False),
-        )
+        return run_logs(config, network_devices)
 
     if port_type in (PortType.NETWORK, PortType.MQTT) and has_mqtt_logging():
         from esphome import mqtt
@@ -1090,7 +811,7 @@ def command_config(args: ArgsProtocol, config: ConfigType) -> int | None:
     # add the console decoration so the front-end can hide the secrets
     if not args.show_secrets:
         output = re.sub(
-            r"(password|key|psk|ssid)\: (.+)", r"\1: \\033[8m\2\\033[28m", output
+            r"(password|key|psk|ssid)\: (.+)", r"\1: \\033[5m\2\\033[6m", output
         )
     if not CORE.quiet:
         safe_print(output)
@@ -1185,9 +906,6 @@ def command_run(args: ArgsProtocol, config: ConfigType) -> int | None:
         purpose=Purpose.UPLOADING,
     )
 
-    # Snapshot current serial ports before upload so we can detect new ones
-    pre_upload_ports = {p.path for p in get_serial_ports()}
-
     exit_code, successful_device = upload_program(config, args, devices)
     if exit_code == 0:
         _LOGGER.info("Successfully uploaded program.")
@@ -1198,19 +916,6 @@ def command_run(args: ArgsProtocol, config: ConfigType) -> int | None:
     if args.no_logs:
         return 0
 
-    # After BOOTSEL upload, wait for a new serial port to appear
-    # so it shows up in the log chooser
-    if (
-        successful_device is None
-        and CORE.data.get(KEY_CORE, {}).get(KEY_TARGET_PLATFORM) == PLATFORM_RP2040
-    ):
-        _wait_for_serial_port(known_ports=pre_upload_ports)
-        # If exactly one new serial port appeared, use it directly
-        serial_ports = get_serial_ports()
-        new_ports = [p for p in serial_ports if p.path not in pre_upload_ports]
-        if len(new_ports) == 1:
-            successful_device = new_ports[0].path
-
     # For logs, prefer the device we successfully uploaded to
     devices = choose_upload_log_host(
         default=successful_device,
@@ -1234,6 +939,12 @@ def command_clean_all(args: ArgsProtocol) -> int | None:
     return 0
 
 
+def command_mqtt_fingerprint(args: ArgsProtocol, config: ConfigType) -> int | None:
+    from esphome import mqtt
+
+    return mqtt.get_fingerprint(config)
+
+
 def command_version(args: ArgsProtocol) -> int | None:
     safe_print(f"Version: {const.__version__}")
     return 0
@@ -1249,38 +960,6 @@ def command_clean(args: ArgsProtocol, config: ConfigType) -> int | None:
     return 0
 
 
-def command_bundle(args: ArgsProtocol, config: ConfigType) -> int | None:
-    from esphome.bundle import BUNDLE_EXTENSION, ConfigBundleCreator
-
-    creator = ConfigBundleCreator(config)
-
-    if args.list_only:
-        files = creator.discover_files()
-        for bf in sorted(files, key=lambda f: f.path):
-            safe_print(f"  {bf.path}")
-        _LOGGER.info("Found %d files", len(files))
-        return 0
-
-    result = creator.create_bundle()
-
-    if args.output:
-        output_path = Path(args.output)
-    else:
-        stem = CORE.config_path.stem
-        output_path = CORE.config_dir / f"{stem}{BUNDLE_EXTENSION}"
-
-    output_path.parent.mkdir(parents=True, exist_ok=True)
-    output_path.write_bytes(result.data)
-
-    _LOGGER.info(
-        "Bundle created: %s (%d files, %.1f KB)",
-        output_path,
-        len(result.files),
-        len(result.data) / 1024,
-    )
-    return 0
-
-
 def command_dashboard(args: ArgsProtocol) -> int | None:
     from esphome.dashboard import dashboard
 
@@ -1352,8 +1031,9 @@ def command_update_all(args: ArgsProtocol) -> int | None:
     files = list_yaml_files(args.configuration)
 
     def build_command(f):
-        dashboard = ["--dashboard"] if CORE.dashboard else []
-        return [*ESPHOME_COMMAND, *dashboard, "run", f, "--no-logs", "--device", "OTA"]
+        if CORE.dashboard:
+            return ["esphome", "--dashboard", "run", f, "--no-logs", "--device", "OTA"]
+        return ["esphome", "run", f, "--no-logs", "--device", "OTA"]
 
     return run_multiple_configs(files, build_command)
 
@@ -1502,7 +1182,7 @@ def command_rename(args: ArgsProtocol, config: ConfigType) -> int | None:
 
     new_path.write_text(new_raw, encoding="utf-8")
 
-    rc = run_external_process(*ESPHOME_COMMAND, "config", str(new_path))
+    rc = run_external_process("esphome", "config", str(new_path))
     if rc != 0:
         print(color(AnsiFore.BOLD_RED, "Rename failed. Reverting changes."))
         new_path.unlink()
@@ -1520,7 +1200,7 @@ def command_rename(args: ArgsProtocol, config: ConfigType) -> int | None:
         cli_args.insert(0, "--dashboard")
 
     try:
-        rc = run_external_process(*ESPHOME_COMMAND, *cli_args)
+        rc = run_external_process("esphome", *cli_args)
     except KeyboardInterrupt:
         rc = 1
     if rc != 0:
@@ -1552,11 +1232,11 @@ POST_CONFIG_ACTIONS = {
     "run": command_run,
     "clean": command_clean,
     "clean-mqtt": command_clean_mqtt,
+    "mqtt-fingerprint": command_mqtt_fingerprint,
     "idedata": command_idedata,
     "rename": command_rename,
     "discover": command_discover,
     "analyze-memory": command_analyze_memory,
-    "bundle": command_bundle,
 }
 
 SIMPLE_CONFIG_ACTIONS = [
@@ -1676,7 +1356,7 @@ def parse_args(argv):
     parser_upload.add_argument(
         "--device",
         action="append",
-        help=ARGUMENT_HELP_DEVICE,
+        help="Manually specify the serial port/address to use, for example /dev/ttyUSB0. Can be specified multiple times for fallback addresses.",
     )
     parser_upload.add_argument(
         "--upload_speed",
@@ -1699,7 +1379,7 @@ def parse_args(argv):
     parser_logs.add_argument(
         "--device",
         action="append",
-        help=ARGUMENT_HELP_DEVICE,
+        help="Manually specify the serial port/address to use, for example /dev/ttyUSB0. Can be specified multiple times for fallback addresses.",
     )
     parser_logs.add_argument(
         "--reset",
@@ -1708,11 +1388,6 @@ def parse_args(argv):
         help="Reset the device before starting serial logs.",
         default=os.getenv("ESPHOME_SERIAL_LOGGING_RESET"),
     )
-    parser_logs.add_argument(
-        "--no-states",
-        action="store_true",
-        help="Do not show entity state changes in log output.",
-    )
 
     parser_discover = subparsers.add_parser(
         "discover",
@@ -1734,7 +1409,7 @@ def parse_args(argv):
     parser_run.add_argument(
         "--device",
         action="append",
-        help=ARGUMENT_HELP_DEVICE,
+        help="Manually specify the serial port/address to use, for example /dev/ttyUSB0. Can be specified multiple times for fallback addresses.",
     )
     parser_run.add_argument(
         "--upload_speed",
@@ -1771,6 +1446,13 @@ def parse_args(argv):
     )
     parser_wizard.add_argument("configuration", help="Your YAML configuration file.")
 
+    parser_fingerprint = subparsers.add_parser(
+        "mqtt-fingerprint", help="Get the SSL fingerprint from a MQTT broker."
+    )
+    parser_fingerprint.add_argument(
+        "configuration", help="Your YAML configuration file(s).", nargs="+"
+    )
+
     subparsers.add_parser("version", help="Print the ESPHome version and exit.")
 
     parser_clean = subparsers.add_parser(
@@ -1858,24 +1540,6 @@ def parse_args(argv):
         "configuration", help="Your YAML configuration file(s).", nargs="+"
     )
 
-    parser_bundle = subparsers.add_parser(
-        "bundle",
-        help="Create a self-contained config bundle for remote compilation.",
-    )
-    parser_bundle.add_argument(
-        "configuration", help="Your YAML configuration file(s).", nargs="+"
-    )
-    parser_bundle.add_argument(
-        "-o",
-        "--output",
-        help="Output path for the bundle archive.",
-    )
-    parser_bundle.add_argument(
-        "--list-only",
-        help="List discovered files without creating the archive.",
-        action="store_true",
-    )
-
     # Keep backward compatibility with the old command line format of
     # esphome <config> <command>.
     #
@@ -1941,7 +1605,7 @@ def run_esphome(argv):
         # argv[0] is the program path, skip it since we prefix with "esphome"
         def build_command(f):
             return (
-                [*ESPHOME_COMMAND]
+                ["esphome"]
                 + [arg for arg in argv[1:] if arg not in args.configuration]
                 + [str(f)]
             )
@@ -1954,16 +1618,6 @@ def run_esphome(argv):
         _LOGGER.warning("Skipping secrets file %s", conf_path)
         return 0
 
-    # Bundle support: if the configuration is a .esphomebundle, extract it
-    # and rewrite conf_path to the extracted YAML config.
-    from esphome.bundle import is_bundle_path, prepare_bundle_for_compile
-
-    if is_bundle_path(conf_path):
-        _LOGGER.info("Extracting config bundle %s...", conf_path)
-        conf_path = prepare_bundle_for_compile(conf_path)
-        # Update the argument so downstream code sees the extracted path
-        args.configuration[0] = str(conf_path)
-
     CORE.config_path = conf_path
     CORE.dashboard = args.dashboard
 

esphome/analyze_memory/__init__.py

@@ -1,6 +1,6 @@
 """Memory usage analyzer for ESPHome compiled binaries."""
 
-from collections import Counter, defaultdict
+from collections import defaultdict
 from dataclasses import dataclass, field
 import logging
 from pathlib import Path
@@ -12,6 +12,7 @@ from .const import (
     CORE_SUBCATEGORY_PATTERNS,
     DEMANGLED_PATTERNS,
     ESPHOME_COMPONENT_PATTERN,
+    SECTION_TO_ATTR,
     SYMBOL_PATTERNS,
 )
 from .demangle import batch_demangle
@@ -40,26 +41,12 @@ _READELF_SECTION_PATTERN = re.compile(
     r"\s*\[\s*\d+\]\s+([\.\w]+)\s+\w+\s+[\da-fA-F]+\s+[\da-fA-F]+\s+([\da-fA-F]+)"
 )
 
-# Regex for extracting call targets from objdump disassembly
-# Matches direct call instructions across architectures:
-#   Xtensa: call0/call4/call8/call12/callx0/callx4/callx8/callx12 <addr> <symbol>
-#   ARM:    bl/blx <addr> <symbol>
-# Captures the mangled symbol name inside angle brackets.
-_CALL_TARGET_PATTERN = re.compile(
-    r"\t(?:call(?:0|4|8|12)|callx(?:0|4|8|12)|blx?)\s+[\da-fA-F]+ <([^>]+)>"
-)
-
 # Component category prefixes
 _COMPONENT_PREFIX_ESPHOME = "[esphome]"
 _COMPONENT_PREFIX_EXTERNAL = "[external]"
-_COMPONENT_PREFIX_LIB = "[lib]"
 _COMPONENT_CORE = f"{_COMPONENT_PREFIX_ESPHOME}core"
 _COMPONENT_API = f"{_COMPONENT_PREFIX_ESPHOME}api"
 
-# Placement new storage suffix (generated by codegen Pvariable)
-_PSTORAGE_SUFFIX = "__pstorage"
-
-
 # C++ namespace prefixes
 _NAMESPACE_ESPHOME = "esphome::"
 _NAMESPACE_STD = "std::"
@@ -70,16 +57,6 @@ SymbolInfoType = tuple[str, int, str]
 # RAM sections - symbols in these sections consume RAM
 RAM_SECTIONS = frozenset([".data", ".bss"])
 
-# nm symbol types for global/weak defined symbols (used for library symbol mapping)
-# Only global (uppercase) and weak symbols are safe to use - local symbols (lowercase)
-# can have name collisions across compilation units
-_NM_DEFINED_GLOBAL_TYPES = frozenset({"T", "D", "B", "R", "W", "V"})
-
-# Pattern matching compiler-generated local names that can collide across compilation
-# units (e.g., packet$19, buf$20, flag$5261). These are unsafe for name-based lookup.
-# Does NOT match mangled C++ names with optimization suffixes (e.g., func$isra$0).
-_COMPILER_LOCAL_PATTERN = re.compile(r"^[a-zA-Z_]\w*\$\d+$")
-
 
 @dataclass
 class MemorySection:
@@ -114,17 +91,6 @@ class ComponentMemory:
     bss_size: int = 0  # Uninitialized data (ram only)
     symbol_count: int = 0
 
-    def add_section_size(self, section_name: str, size: int) -> None:
-        """Add size to the appropriate attribute for a section."""
-        if section_name == ".text":
-            self.text_size += size
-        elif section_name == ".rodata":
-            self.rodata_size += size
-        elif section_name == ".data":
-            self.data_size += size
-        elif section_name == ".bss":
-            self.bss_size += size
-
     @property
     def flash_total(self) -> int:
         """Total flash usage (text + rodata + data)."""
@@ -201,31 +167,13 @@ class MemoryAnalyzer:
         self._elf_symbol_names: set[str] = set()
         # SDK symbols not in ELF (static/local symbols from closed-source libs)
         self._sdk_symbols: list[SDKSymbol] = []
-        # CSWTCH symbols: list of (name, size, source_file, component)
-        self._cswtch_symbols: list[tuple[str, int, str, str]] = []
-        # Library symbol mapping: symbol_name -> library_name
-        self._lib_symbol_map: dict[str, str] = {}
-        # Source file symbol mapping: symbol_name -> component_name
-        # Used for extern "C" and other symbols without C++ namespace
-        self._source_symbol_map: dict[str, str] = {}
-        # Library dir to name mapping: "lib641" -> "espsoftwareserial",
-        # "espressif__mdns" -> "mdns"
-        self._lib_hash_to_name: dict[str, str] = {}
-        # Heuristic category to library redirect: "mdns_lib" -> "[lib]mdns"
-        self._heuristic_to_lib: dict[str, str] = {}
-        # Function call counts: mangled_name -> call_count
-        self._function_call_counts: Counter[str] = Counter()
 
     def analyze(self) -> dict[str, ComponentMemory]:
         """Analyze the ELF file and return component memory usage."""
         self._parse_sections()
         self._parse_symbols()
-        self._scan_libraries()
-        self._scan_source_symbols()
         self._categorize_symbols()
-        self._analyze_cswtch_symbols()
         self._analyze_sdk_libraries()
-        self._analyze_function_calls()
         return dict(self.components)
 
     def _parse_sections(self) -> None:
@@ -307,7 +255,8 @@ class MemoryAnalyzer:
                 comp_mem.symbol_count += 1
 
                 # Update the appropriate size attribute based on section
-                comp_mem.add_section_size(section_name, size)
+                if attr_name := SECTION_TO_ATTR.get(section_name):
+                    setattr(comp_mem, attr_name, getattr(comp_mem, attr_name) + size)
 
                 # Track uncategorized symbols
                 if component == "other" and size > 0:
@@ -336,13 +285,6 @@ class MemoryAnalyzer:
         # Demangle C++ names if needed
         demangled = self._demangle_symbol(symbol_name)
 
-        # Check for placement new storage symbols (generated by codegen)
-        # Format: {component}__{id}__pstorage
-        if demangled.endswith(_PSTORAGE_SUFFIX) and (
-            component := self._match_pstorage_component(demangled)
-        ):
-            return component
-
         # Check for special component classes first (before namespace pattern)
         # This handles cases like esphome::ESPHomeOTAComponent which should map to ota
         if _NAMESPACE_ESPHOME in demangled:
@@ -374,24 +316,15 @@ class MemoryAnalyzer:
             # If no component match found, it's core
             return _COMPONENT_CORE
 
-        # Check library symbol map (more accurate than heuristic patterns)
-        if lib_name := self._lib_symbol_map.get(symbol_name):
-            return f"{_COMPONENT_PREFIX_LIB}{lib_name}"
-
-        # Check source file mapping (catches extern "C" functions in ESPHome sources)
-        # Must be before heuristic patterns since source attribution is authoritative
-        if component := self._source_symbol_map.get(symbol_name):
-            return component
-
         # Check against symbol patterns
         for component, patterns in SYMBOL_PATTERNS.items():
             if any(pattern in symbol_name for pattern in patterns):
-                return self._heuristic_to_lib.get(component, component)
+                return component
 
         # Check against demangled patterns
         for component, patterns in DEMANGLED_PATTERNS.items():
             if any(pattern in demangled for pattern in patterns):
-                return self._heuristic_to_lib.get(component, component)
+                return component
 
         # Special cases that need more complex logic
 
@@ -410,33 +343,14 @@ class MemoryAnalyzer:
         # Track uncategorized symbols for analysis
         return "other"
 
-    def _match_pstorage_component(self, symbol_name: str) -> str | None:
-        """Match a __pstorage symbol to its ESPHome component.
-
-        Symbol format: {component}__{id}__pstorage
-        The component namespace is embedded by codegen before the double underscore.
-        """
-        prefix = symbol_name[: -len(_PSTORAGE_SUFFIX)]
-        # Extract component namespace before the first double underscore
-        dunder_pos = prefix.find("__")
-        if dunder_pos == -1:
-            return None
-        component_name = prefix[:dunder_pos]
-        if component_name in get_esphome_components():
-            return f"{_COMPONENT_PREFIX_ESPHOME}{component_name}"
-        if component_name in self.external_components:
-            return f"{_COMPONENT_PREFIX_EXTERNAL}{component_name}"
-        return None
-
     def _batch_demangle_symbols(self, symbols: list[str]) -> None:
         """Batch demangle C++ symbol names for efficiency."""
         if not symbols:
             return
 
         _LOGGER.info("Demangling %d symbols", len(symbols))
-        demangled = batch_demangle(symbols, objdump_path=self.objdump_path)
-        self._demangle_cache.update(demangled)
-        _LOGGER.info("Successfully demangled %d symbols", len(demangled))
+        self._demangle_cache = batch_demangle(symbols, objdump_path=self.objdump_path)
+        _LOGGER.info("Successfully demangled %d symbols", len(self._demangle_cache))
 
     def _demangle_symbol(self, symbol: str) -> str:
         """Get demangled C++ symbol name from cache."""
@@ -458,763 +372,6 @@ class MemoryAnalyzer:
 
         return "Other Core"
 
-    def _discover_pio_libraries(
-        self,
-        libraries: dict[str, list[Path]],
-        hash_to_name: dict[str, str],
-    ) -> None:
-        """Discover PlatformIO third-party libraries from the build directory.
-
-        Scans ``lib<hex>/`` directories under ``.pioenvs/<env>/`` to find
-        library names and their ``.a`` archive or ``.o`` file paths.
-
-        Args:
-            libraries: Dict to populate with library name -> file path list mappings.
-                Prefers ``.a`` archives when available, falls back to ``.o`` files
-                (e.g., pioarduino ESP32 Arduino builds only produce ``.o`` files).
-            hash_to_name: Dict to populate with dir name -> library name mappings
-                for CSWTCH attribution (e.g., ``lib641`` -> ``espsoftwareserial``).
-        """
-        build_dir = self.elf_path.parent
-
-        for entry in build_dir.iterdir():
-            if not entry.is_dir() or not entry.name.startswith("lib"):
-                continue
-            # Validate that the suffix after "lib" is a hex hash
-            hex_part = entry.name[3:]
-            if not hex_part:
-                continue
-            try:
-                int(hex_part, 16)
-            except ValueError:
-                continue
-
-            # Each lib<hex>/ directory contains a subdirectory named after the library
-            for lib_subdir in entry.iterdir():
-                if not lib_subdir.is_dir():
-                    continue
-                lib_name = lib_subdir.name.lower()
-
-                # Prefer .a archive (lib<LibraryName>.a), fall back to .o files
-                # e.g., lib72a/ESPAsyncTCP/... has lib72a/libESPAsyncTCP.a
-                archive = entry / f"lib{lib_subdir.name}.a"
-                if archive.exists():
-                    file_paths = [archive]
-                elif archives := list(entry.glob("*.a")):
-                    # Case-insensitive fallback
-                    file_paths = [archives[0]]
-                else:
-                    # No .a archive (e.g., pioarduino CMake builds) - use .o files
-                    file_paths = sorted(lib_subdir.rglob("*.o"))
-
-                if file_paths:
-                    libraries[lib_name] = file_paths
-                    hash_to_name[entry.name] = lib_name
-                    _LOGGER.debug(
-                        "Discovered PlatformIO library: %s -> %s",
-                        lib_subdir.name,
-                        file_paths[0],
-                    )
-
-    def _discover_idf_managed_components(
-        self,
-        libraries: dict[str, list[Path]],
-        hash_to_name: dict[str, str],
-    ) -> None:
-        """Discover ESP-IDF managed component libraries from the build directory.
-
-        ESP-IDF managed components (from the IDF component registry) use a
-        ``<vendor>__<name>`` naming convention. Source files live under
-        ``managed_components/<vendor>__<name>/`` and the compiled archives are at
-        ``esp-idf/<vendor>__<name>/lib<vendor>__<name>.a``.
-
-        Args:
-            libraries: Dict to populate with library name -> file path list mappings.
-            hash_to_name: Dict to populate with dir name -> library name mappings
-                for CSWTCH attribution (e.g., ``espressif__mdns`` -> ``mdns``).
-        """
-        build_dir = self.elf_path.parent
-
-        managed_dir = build_dir / "managed_components"
-        if not managed_dir.is_dir():
-            return
-
-        espidf_dir = build_dir / "esp-idf"
-
-        for entry in managed_dir.iterdir():
-            if not entry.is_dir() or "__" not in entry.name:
-                continue
-
-            # Extract the short name: espressif__mdns -> mdns
-            full_name = entry.name  # e.g., espressif__mdns
-            short_name = full_name.split("__", 1)[1].lower()
-
-            # Find the .a archive under esp-idf/<vendor>__<name>/
-            archive = espidf_dir / full_name / f"lib{full_name}.a"
-            if archive.exists():
-                libraries[short_name] = [archive]
-                hash_to_name[full_name] = short_name
-                _LOGGER.debug(
-                    "Discovered IDF managed component: %s -> %s",
-                    short_name,
-                    archive,
-                )
-
-    def _build_library_symbol_map(
-        self, libraries: dict[str, list[Path]]
-    ) -> dict[str, str]:
-        """Build a symbol-to-library mapping from library archives or object files.
-
-        Runs ``nm --defined-only`` on each ``.a`` or ``.o`` file to collect
-        global and weak defined symbols.
-
-        Args:
-            libraries: Dictionary mapping library name to list of file paths
-                (``.a`` archives or ``.o`` object files).
-
-        Returns:
-            Dictionary mapping symbol name to library name.
-        """
-        symbol_map: dict[str, str] = {}
-
-        if not self.nm_path:
-            return symbol_map
-
-        for lib_name, file_paths in libraries.items():
-            result = run_tool(
-                [self.nm_path, "--defined-only", *(str(p) for p in file_paths)],
-                timeout=10,
-            )
-            if result is None or result.returncode != 0:
-                continue
-
-            for line in result.stdout.splitlines():
-                parts = line.split()
-                if len(parts) < 3:
-                    continue
-
-                sym_type = parts[-2]
-                sym_name = parts[-1]
-
-                # Include global defined symbols (uppercase) and weak symbols (W/V)
-                if sym_type in _NM_DEFINED_GLOBAL_TYPES:
-                    symbol_map[sym_name] = lib_name
-
-        return symbol_map
-
-    @staticmethod
-    def _build_heuristic_to_lib_mapping(
-        library_names: set[str],
-    ) -> dict[str, str]:
-        """Build mapping from heuristic pattern categories to discovered libraries.
-
-        Heuristic categories like ``mdns_lib``, ``web_server_lib``, ``async_tcp``
-        exist as approximations for library attribution.  When we discover the
-        actual library, symbols matching those heuristics should be redirected
-        to the ``[lib]`` category instead.
-
-        The mapping is built by checking if the normalized category name
-        (stripped of ``_lib`` suffix and underscores) appears as a substring
-        of any discovered library name.
-
-        Examples::
-
-            mdns_lib -> mdns -> in "mdns" or "esp8266mdns" -> [lib]mdns
-            web_server_lib -> webserver -> in "espasyncwebserver" -> [lib]espasyncwebserver
-            async_tcp -> asynctcp -> in "espasynctcp" -> [lib]espasynctcp
-
-        Args:
-            library_names: Set of discovered library names (lowercase).
-
-        Returns:
-            Dictionary mapping heuristic category to ``[lib]<name>`` string.
-        """
-        mapping: dict[str, str] = {}
-        all_categories = set(SYMBOL_PATTERNS) | set(DEMANGLED_PATTERNS)
-
-        for category in all_categories:
-            base = category.removesuffix("_lib").replace("_", "")
-            # Collect all libraries whose name contains the base string
-            candidates = [lib_name for lib_name in library_names if base in lib_name]
-            if not candidates:
-                continue
-
-            # Choose a deterministic "best" match:
-            #   1. Prefer exact name matches over substring matches.
-            #   2. Among non-exact matches, prefer the shortest library name.
-            #   3. Break remaining ties lexicographically.
-            best_lib = min(
-                candidates,
-                key=lambda lib_name, _base=base: (
-                    lib_name != _base,
-                    len(lib_name),
-                    lib_name,
-                ),
-            )
-            mapping[category] = f"{_COMPONENT_PREFIX_LIB}{best_lib}"
-
-        if mapping:
-            _LOGGER.debug(
-                "Heuristic-to-library redirects: %s",
-                ", ".join(f"{k} -> {v}" for k, v in sorted(mapping.items())),
-            )
-
-        return mapping
-
-    def _parse_map_file(self) -> dict[str, str] | None:
-        """Parse linker map file to build authoritative symbol-to-library mapping.
-
-        The linker map file contains the definitive source attribution for every
-        symbol, including local/static ones that ``nm`` cannot safely export.
-
-        Map file format (GNU ld)::
-
-            .text._mdns_service_task
-                        0x400e9fdc      0x65c  .pioenvs/env/esp-idf/espressif__mdns/libespressif__mdns.a(mdns.c.o)
-
-        Each section entry has a ``.section.symbol_name`` line followed by an
-        indented line with address, size, and source path.
-
-        Returns:
-            Symbol-to-library dict, or ``None`` if no usable map file exists.
-        """
-        map_path = self.elf_path.with_suffix(".map")
-        if not map_path.exists() or map_path.stat().st_size < 10000:
-            return None
-
-        _LOGGER.info("Parsing linker map file: %s", map_path.name)
-
-        try:
-            map_text = map_path.read_text(encoding="utf-8", errors="replace")
-        except OSError as err:
-            _LOGGER.warning("Failed to read map file: %s", err)
-            return None
-
-        symbol_map: dict[str, str] = {}
-        source_symbol_map: dict[str, str] = {}
-        current_symbol: str | None = None
-        section_prefixes = (".text.", ".rodata.", ".data.", ".bss.", ".literal.")
-
-        for line in map_text.splitlines():
-            # Match section.symbol line: " .text.symbol_name"
-            # Single space indent, starts with dot
-            if len(line) > 2 and line[0] == " " and line[1] == ".":
-                stripped = line.strip()
-                for prefix in section_prefixes:
-                    if stripped.startswith(prefix):
-                        current_symbol = stripped[len(prefix) :]
-                        break
-                else:
-                    current_symbol = None
-                continue
-
-            # Match source attribution line: "        0xADDR  0xSIZE  source_path"
-            if current_symbol is None:
-                continue
-
-            fields = line.split()
-            # Skip compiler-generated local names (e.g., packet$19, buf$20)
-            # that can collide across compilation units
-            if (
-                len(fields) >= 3
-                and fields[0].startswith("0x")
-                and fields[1].startswith("0x")
-                and not _COMPILER_LOCAL_PATTERN.match(current_symbol)
-            ):
-                source_path = fields[2]
-                # Check if source path contains a known library directory
-                for dir_key, lib_name in self._lib_hash_to_name.items():
-                    if dir_key in source_path:
-                        symbol_map[current_symbol] = lib_name
-                        break
-                else:
-                    # Map ESPHome source files to components for extern "C"
-                    # and other symbols without C++ namespace
-                    component = self._source_file_to_component(source_path)
-                    if component.startswith(
-                        (_COMPONENT_PREFIX_ESPHOME, _COMPONENT_PREFIX_EXTERNAL)
-                    ):
-                        source_symbol_map[current_symbol] = component
-
-            current_symbol = None
-
-        self._source_symbol_map = source_symbol_map
-        return symbol_map or None
-
-    def _scan_libraries(self) -> None:
-        """Discover third-party libraries and build symbol mapping.
-
-        Scans both PlatformIO ``lib<hex>/`` directories (Arduino builds) and
-        ESP-IDF ``managed_components/`` (IDF builds) to find library archives.
-
-        Uses the linker map file for authoritative symbol attribution when
-        available, falling back to ``nm`` scanning with heuristic redirects.
-        """
-        libraries: dict[str, list[Path]] = {}
-        self._discover_pio_libraries(libraries, self._lib_hash_to_name)
-        self._discover_idf_managed_components(libraries, self._lib_hash_to_name)
-
-        if not libraries:
-            _LOGGER.debug("No third-party libraries found")
-            return
-
-        _LOGGER.info(
-            "Scanning %d libraries: %s",
-            len(libraries),
-            ", ".join(sorted(libraries)),
-        )
-
-        # Heuristic redirect catches local symbols (e.g., mdns_task_buffer$14)
-        # that can't be safely added to the symbol map due to name collisions
-        self._heuristic_to_lib = self._build_heuristic_to_lib_mapping(
-            set(libraries.keys())
-        )
-
-        # Try linker map file first (authoritative, includes local symbols)
-        map_symbols = self._parse_map_file()
-        if map_symbols is not None:
-            self._lib_symbol_map = map_symbols
-            _LOGGER.info(
-                "Built library symbol map from linker map: %d symbols",
-                len(self._lib_symbol_map),
-            )
-            return
-
-        # Fall back to nm scanning (global symbols only)
-        self._lib_symbol_map = self._build_library_symbol_map(libraries)
-
-        _LOGGER.info(
-            "Built library symbol map from nm: %d symbols from %d libraries",
-            len(self._lib_symbol_map),
-            len(libraries),
-        )
-
-    def _scan_source_symbols(self) -> None:
-        """Scan ESPHome source object files to map extern "C" symbols to components.
-
-        When no linker map file is available, this uses ``nm`` to scan ``.o`` files
-        under ``src/esphome/`` and build a symbol-to-component mapping. This catches
-        ``extern "C"`` functions and other symbols that lack C++ namespace prefixes.
-
-        Skips scanning if ``_source_symbol_map`` was already populated by
-        ``_parse_map_file()``.
-        """
-        if self._source_symbol_map or not self.nm_path:
-            return
-
-        obj_dir = self._find_object_files_dir()
-        if obj_dir is None:
-            return
-
-        # Find ESPHome source object files
-        esphome_src_dir = obj_dir / "src" / "esphome"
-        if not esphome_src_dir.is_dir():
-            return
-
-        obj_files = sorted(esphome_src_dir.rglob("*.o"))
-        if not obj_files:
-            return
-
-        # Run nm with --print-file-name to get file:symbol mapping
-        result = run_tool(
-            [self.nm_path, "--print-file-name", "-g", "--defined-only"]
-            + [str(f) for f in obj_files],
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("nm scan of source objects failed")
-            return
-
-        self._source_symbol_map = self._parse_nm_source_output(result.stdout, obj_dir)
-        if self._source_symbol_map:
-            _LOGGER.info(
-                "Built source symbol map from nm: %d symbols",
-                len(self._source_symbol_map),
-            )
-
-    def _parse_nm_source_output(self, output: str, base_dir: Path) -> dict[str, str]:
-        """Parse nm output to map non-namespaced symbols to ESPHome components.
-
-        Extracts global defined symbols from ESPHome source object files that
-        don't use C++ namespacing (e.g. ``extern "C"`` functions).
-
-        Args:
-            output: Raw stdout from ``nm --print-file-name -g --defined-only``
-                or ``nm --print-file-name -S``.
-            base_dir: Build directory for computing relative paths.
-
-        Returns:
-            Dict mapping symbol names to component names.
-        """
-        source_map: dict[str, str] = {}
-        for line in output.splitlines():
-            # Format: /path/to/file.o: addr type name
-            #     or: /path/to/file.o: addr size type name (with -S)
-            colon_idx = line.rfind(".o:")
-            if colon_idx == -1:
-                continue
-
-            file_path = line[: colon_idx + 2]
-            fields = line[colon_idx + 3 :].split()
-            if len(fields) < 3:
-                continue
-
-            # With -S flag, format is: addr size type name
-            # Without -S flag: addr type name
-            # type is a single char; size is hex digits
-            # Detect by checking if fields[1] is a single uppercase letter (type)
-            if len(fields[1]) == 1 and fields[1].isalpha():
-                # addr type name
-                sym_type = fields[1]
-                symbol_name = fields[2]
-            elif len(fields) >= 4:
-                # addr size type name
-                sym_type = fields[2]
-                symbol_name = fields[3]
-            else:
-                continue
-
-            # Only global defined symbols (uppercase type)
-            if not sym_type.isupper() or sym_type == "U":
-                continue
-
-            # Skip symbols already in esphome:: namespace
-            if symbol_name.startswith("_ZN7esphome"):
-                continue
-
-            # Make path relative to base_dir for _source_file_to_component
-            try:
-                rel_path = str(Path(file_path).relative_to(base_dir))
-            except ValueError:
-                continue
-
-            component = self._source_file_to_component(rel_path)
-            if component.startswith(
-                (_COMPONENT_PREFIX_ESPHOME, _COMPONENT_PREFIX_EXTERNAL)
-            ):
-                source_map[symbol_name] = component
-
-        return source_map
-
-    def _find_object_files_dir(self) -> Path | None:
-        """Find the directory containing object files for this build.
-
-        Returns:
-            Path to the directory containing .o files, or None if not found.
-        """
-        # The ELF is typically at .pioenvs/<env>/firmware.elf
-        # Object files are in .pioenvs/<env>/src/ and .pioenvs/<env>/lib*/
-        pioenvs_dir = self.elf_path.parent
-        if pioenvs_dir.exists() and any(pioenvs_dir.glob("src/*.o")):
-            return pioenvs_dir
-        return None
-
-    @staticmethod
-    def _parse_nm_cswtch_output(
-        output: str,
-        base_dir: Path | None,
-        cswtch_map: dict[str, list[tuple[str, int]]],
-    ) -> None:
-        """Parse nm output for CSWTCH symbols and add to cswtch_map.
-
-        Handles both ``.o`` files and ``.a`` archives.
-
-        nm output formats::
-
-            .o files:  /path/file.o:hex_addr hex_size type name
-            .a files:  /path/lib.a:member.o:hex_addr hex_size type name
-
-        For ``.o`` files, paths are made relative to *base_dir* when possible.
-        For ``.a`` archives (detected by ``:`` in the file portion), paths are
-        formatted as ``archive_stem/member.o`` (e.g. ``liblwip2-536-feat/lwip-esp.o``).
-
-        Args:
-            output: Raw stdout from ``nm --print-file-name -S``.
-            base_dir: Base directory for computing relative paths of ``.o`` files.
-                      Pass ``None`` when scanning archives outside the build tree.
-            cswtch_map: Dict to populate, mapping ``"CSWTCH$N:size"`` to source list.
-        """
-        for line in output.splitlines():
-            if "CSWTCH$" not in line:
-                continue
-
-            # Split on last ":" that precedes a hex address.
-            # For .o:  "filepath.o" : "hex_addr hex_size type name"
-            # For .a:  "filepath.a:member.o" : "hex_addr hex_size type name"
-            parts_after_colon = line.rsplit(":", 1)
-            if len(parts_after_colon) != 2:
-                continue
-
-            file_path = parts_after_colon[0]
-            fields = parts_after_colon[1].split()
-            # fields: [address, size, type, name]
-            if len(fields) < 4:
-                continue
-
-            sym_name = fields[3]
-            if not sym_name.startswith("CSWTCH$"):
-                continue
-
-            try:
-                size = int(fields[1], 16)
-            except ValueError:
-                continue
-
-            # Determine readable source path
-            # Use ".a:" to detect archive format (not bare ":" which matches
-            # Windows drive letters like "C:\...\file.o").
-            if ".a:" in file_path:
-                # Archive format: "archive.a:member.o" → "archive_stem/member.o"
-                archive_part, member = file_path.rsplit(":", 1)
-                archive_name = Path(archive_part).stem
-                rel_path = f"{archive_name}/{member}"
-            elif base_dir is not None:
-                try:
-                    rel_path = str(Path(file_path).relative_to(base_dir))
-                except ValueError:
-                    rel_path = file_path
-            else:
-                rel_path = file_path
-
-            key = f"{sym_name}:{size}"
-            cswtch_map[key].append((rel_path, size))
-
-    def _run_nm_cswtch_scan(
-        self,
-        files: list[Path],
-        base_dir: Path | None,
-        cswtch_map: dict[str, list[tuple[str, int]]],
-    ) -> None:
-        """Run nm on *files* and add any CSWTCH symbols to *cswtch_map*.
-
-        Args:
-            files: Object (``.o``) or archive (``.a``) files to scan.
-            base_dir: Base directory for relative path computation (see
-                      :meth:`_parse_nm_cswtch_output`).
-            cswtch_map: Dict to populate with results.
-        """
-        if not self.nm_path or not files:
-            return
-
-        _LOGGER.debug("Scanning %d files for CSWTCH symbols", len(files))
-
-        result = run_tool(
-            [self.nm_path, "--print-file-name", "-S"] + [str(f) for f in files],
-            timeout=30,
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug(
-                "nm failed or timed out scanning %d files for CSWTCH symbols",
-                len(files),
-            )
-            return
-
-        self._parse_nm_cswtch_output(result.stdout, base_dir, cswtch_map)
-
-    def _scan_cswtch_in_sdk_archives(
-        self, cswtch_map: dict[str, list[tuple[str, int]]]
-    ) -> None:
-        """Scan SDK library archives (.a) for CSWTCH symbols.
-
-        Prebuilt SDK libraries (e.g. lwip, bearssl) are not compiled from source,
-        so their CSWTCH symbols only exist inside ``.a`` archives.  Results are
-        merged into *cswtch_map* for keys not already found in ``.o`` files.
-
-        The same source file (e.g. ``lwip-esp.o``) often appears in multiple
-        library variants (``liblwip2-536.a``, ``liblwip2-1460-feat.a``, etc.),
-        so results are deduplicated by member name.
-        """
-        sdk_dirs = self._find_sdk_library_dirs()
-        if not sdk_dirs:
-            return
-
-        sdk_archives = sorted(a for sdk_dir in sdk_dirs for a in sdk_dir.glob("*.a"))
-
-        sdk_map: dict[str, list[tuple[str, int]]] = defaultdict(list)
-        self._run_nm_cswtch_scan(sdk_archives, None, sdk_map)
-
-        # Merge SDK results, deduplicating by member name.
-        for key, sources in sdk_map.items():
-            if key in cswtch_map:
-                continue
-            seen: dict[str, tuple[str, int]] = {}
-            for path, sz in sources:
-                member = Path(path).name
-                if member not in seen:
-                    seen[member] = (path, sz)
-            cswtch_map[key] = list(seen.values())
-
-    def _source_file_to_component(self, source_file: str) -> str:
-        """Map a source object file path to its component name.
-
-        Args:
-            source_file: Relative path like 'src/esphome/components/wifi/wifi_component.cpp.o'
-
-        Returns:
-            Component name like '[esphome]wifi' or the source file if unknown.
-        """
-        parts = Path(source_file).parts
-
-        # ESPHome component: src/esphome/components/<name>/...
-        if "components" in parts:
-            idx = parts.index("components")
-            if idx + 1 < len(parts):
-                component_name = parts[idx + 1]
-                if component_name in get_esphome_components():
-                    return f"{_COMPONENT_PREFIX_ESPHOME}{component_name}"
-                if component_name in self.external_components:
-                    return f"{_COMPONENT_PREFIX_EXTERNAL}{component_name}"
-
-        # ESPHome core: src/esphome/core/... or src/esphome/...
-        if "core" in parts and "esphome" in parts:
-            return _COMPONENT_CORE
-        if "esphome" in parts and "components" not in parts:
-            return _COMPONENT_CORE
-
-        # Framework/library files - check for PlatformIO library hash dirs
-        # e.g., lib65b/ESPAsyncTCP/... -> [lib]espasynctcp
-        if parts and parts[0] in self._lib_hash_to_name:
-            return f"{_COMPONENT_PREFIX_LIB}{self._lib_hash_to_name[parts[0]]}"
-
-        # ESP-IDF managed components: managed_components/espressif__mdns/... -> [lib]mdns
-        if (
-            len(parts) >= 2
-            and parts[0] == "managed_components"
-            and parts[1] in self._lib_hash_to_name
-        ):
-            return f"{_COMPONENT_PREFIX_LIB}{self._lib_hash_to_name[parts[1]]}"
-
-        # Other framework/library files - return the first path component
-        # e.g., FrameworkArduino/... -> FrameworkArduino
-        return parts[0] if parts else source_file
-
-    def _analyze_cswtch_symbols(self) -> None:
-        """Analyze CSWTCH (GCC switch table) symbols by tracing to source objects.
-
-        CSWTCH symbols are compiler-generated lookup tables for switch statements.
-        They are local symbols, so the same name can appear in different object files.
-        This method scans .o files and SDK archives to attribute them to their
-        source components.
-        """
-        obj_dir = self._find_object_files_dir()
-        if obj_dir is None:
-            _LOGGER.debug("No object files directory found, skipping CSWTCH analysis")
-            return
-
-        # Scan build-dir object files for CSWTCH symbols
-        cswtch_map: dict[str, list[tuple[str, int]]] = defaultdict(list)
-        self._run_nm_cswtch_scan(sorted(obj_dir.rglob("*.o")), obj_dir, cswtch_map)
-
-        # Also scan SDK library archives (.a) for CSWTCH symbols.
-        # Prebuilt SDK libraries (e.g. lwip, bearssl) are not compiled from source
-        # so their symbols only exist inside .a archives, not as loose .o files.
-        self._scan_cswtch_in_sdk_archives(cswtch_map)
-
-        if not cswtch_map:
-            _LOGGER.debug("No CSWTCH symbols found in object files or SDK archives")
-            return
-
-        # Collect CSWTCH symbols from the ELF (already parsed in sections)
-        # Include section_name for re-attribution of component totals
-        elf_cswtch = [
-            (symbol_name, size, section_name)
-            for section_name, section in self.sections.items()
-            for symbol_name, size, _ in section.symbols
-            if symbol_name.startswith("CSWTCH$")
-        ]
-
-        _LOGGER.debug(
-            "Found %d CSWTCH symbols in ELF, %d unique in object files",
-            len(elf_cswtch),
-            len(cswtch_map),
-        )
-
-        # Match ELF CSWTCH symbols to source files and re-attribute component totals.
-        # _categorize_symbols() already ran and put these into "other" since CSWTCH$
-        # names don't match any component pattern. We move the bytes to the correct
-        # component based on the object file mapping.
-        other_mem = self.components.get("other")
-
-        for sym_name, size, section_name in elf_cswtch:
-            key = f"{sym_name}:{size}"
-            sources = cswtch_map.get(key, [])
-
-            if len(sources) == 1:
-                source_file = sources[0][0]
-                component = self._source_file_to_component(source_file)
-            elif len(sources) > 1:
-                # Ambiguous - multiple object files have same CSWTCH name+size
-                source_file = "ambiguous"
-                component = "ambiguous"
-                _LOGGER.debug(
-                    "Ambiguous CSWTCH %s (%d B) found in %d files: %s",
-                    sym_name,
-                    size,
-                    len(sources),
-                    ", ".join(src for src, _ in sources),
-                )
-            else:
-                source_file = "unknown"
-                component = "unknown"
-
-            self._cswtch_symbols.append((sym_name, size, source_file, component))
-
-            # Re-attribute from "other" to the correct component
-            if (
-                component not in ("other", "unknown", "ambiguous")
-                and other_mem is not None
-            ):
-                other_mem.add_section_size(section_name, -size)
-                if component not in self.components:
-                    self.components[component] = ComponentMemory(component)
-                self.components[component].add_section_size(section_name, size)
-
-        # Sort by size descending
-        self._cswtch_symbols.sort(key=lambda x: x[1], reverse=True)
-
-        total_size = sum(size for _, size, _, _ in self._cswtch_symbols)
-        _LOGGER.debug(
-            "CSWTCH analysis: %d symbols, %d bytes total",
-            len(self._cswtch_symbols),
-            total_size,
-        )
-
-    def _analyze_function_calls(self) -> None:
-        """Count function call sites by parsing disassembly output.
-
-        Parses direct call instructions (call0/call8/bl/blx) from objdump -d
-        to count how many times each function is called. This helps identify
-        inlining candidates — frequently called small functions benefit most
-        from inlining.
-        """
-        result = run_tool(
-            [self.objdump_path, "-d", str(self.elf_path)],
-            timeout=60,
-        )
-        if result is None or result.returncode != 0:
-            _LOGGER.debug("Failed to disassemble ELF for function call analysis")
-            return
-
-        self._function_call_counts = Counter(
-            match.group(1)
-            for line in result.stdout.splitlines()
-            if (match := _CALL_TARGET_PATTERN.search(line))
-        )
-
-        # Demangle any call targets not already in the cache
-        missing = [
-            name
-            for name in self._function_call_counts
-            if name not in self._demangle_cache
-        ]
-        if missing:
-            self._batch_demangle_symbols(missing)
-
-        _LOGGER.debug(
-            "Function call analysis: %d unique targets, %d total calls",
-            len(self._function_call_counts),
-            sum(self._function_call_counts.values()),
-        )
-
     def get_unattributed_ram(self) -> tuple[int, int, int]:
         """Get unattributed RAM sizes (SDK/framework overhead).
 

esphome/analyze_memory/cli.py

@@ -4,8 +4,6 @@ from __future__ import annotations
 
 from collections import defaultdict
 from collections.abc import Callable
-import heapq
-from operator import itemgetter
 import sys
 from typing import TYPE_CHECKING
 
@@ -14,8 +12,6 @@ from . import (
     _COMPONENT_CORE,
     _COMPONENT_PREFIX_ESPHOME,
     _COMPONENT_PREFIX_EXTERNAL,
-    _COMPONENT_PREFIX_LIB,
-    _PSTORAGE_SUFFIX,
     RAM_SECTIONS,
     MemoryAnalyzer,
 )
@@ -24,17 +20,6 @@ if TYPE_CHECKING:
     from . import ComponentMemory
 
 
-def _format_pstorage_name(name: str) -> str:
-    """Format a __pstorage symbol as 'storage for {id}'."""
-    if not name.endswith(_PSTORAGE_SUFFIX):
-        return name
-    prefix = name[: -len(_PSTORAGE_SUFFIX)]
-    # Strip component namespace prefix: {component}__{id} -> {id}
-    dunder_pos = prefix.find("__")
-    var_id = prefix[dunder_pos + 2 :] if dunder_pos != -1 else prefix
-    return f"storage for {var_id}"
-
-
 class MemoryAnalyzerCLI(MemoryAnalyzer):
     """Memory analyzer with CLI-specific report generation."""
 
@@ -44,10 +29,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
     )
     # Lower threshold for RAM symbols (RAM is more constrained)
     RAM_SYMBOL_SIZE_THRESHOLD: int = 24
-    # Number of top symbols to show in the largest symbols report
-    TOP_SYMBOLS_LIMIT: int = 30
-    # Width for symbol name display in top symbols report
-    COL_TOP_SYMBOL_NAME: int = 55
 
     # Column width constants
     COL_COMPONENT: int = 29
@@ -160,197 +141,11 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
         If section is one of the RAM sections (.data or .bss), a label like
         " [data]" or " [bss]" is appended. For non-RAM sections or when
         section is None, no section label is added.
-
-        Placement new storage symbols are formatted as "storage for {id}".
         """
-        display_name = _format_pstorage_name(demangled)
         section_label = ""
         if section in RAM_SECTIONS:
             section_label = f" [{section[1:]}]"  # .data -> [data], .bss -> [bss]
-        return f"{display_name} ({size:,} B){section_label}"
-
-    def _add_top_symbols(self, lines: list[str]) -> None:
-        """Add a section showing the top largest symbols in the binary."""
-        # Collect all symbols from all components: (symbol, demangled, size, section, component)
-        all_symbols = [
-            (symbol, demangled, size, section, component)
-            for component, symbols in self._component_symbols.items()
-            for symbol, demangled, size, section in symbols
-        ]
-
-        # Get top N symbols by size using heapq for efficiency
-        top_symbols = heapq.nlargest(
-            self.TOP_SYMBOLS_LIMIT, all_symbols, key=itemgetter(2)
-        )
-
-        lines.append("")
-        lines.append(f"Top {self.TOP_SYMBOLS_LIMIT} Largest Symbols:")
-        # Calculate truncation limit from column width (leaving room for "...")
-        truncate_limit = self.COL_TOP_SYMBOL_NAME - 3
-        for i, (_, demangled, size, section, component) in enumerate(top_symbols):
-            # Format section label
-            section_label = f"[{section[1:]}]" if section else ""
-            # Format storage symbols readably
-            display_name = _format_pstorage_name(demangled)
-            # Truncate if too long
-            demangled_display = (
-                f"{display_name[:truncate_limit]}..."
-                if len(display_name) > self.COL_TOP_SYMBOL_NAME
-                else display_name
-            )
-            lines.append(
-                f"{i + 1:>2}. {size:>7,} B {section_label:<8} {demangled_display:<{self.COL_TOP_SYMBOL_NAME}} {component}"
-            )
-
-    def _add_cswtch_analysis(self, lines: list[str]) -> None:
-        """Add CSWTCH (GCC switch table lookup) analysis section."""
-        self._add_section_header(lines, "CSWTCH Analysis (GCC Switch Table Lookups)")
-
-        total_size = sum(size for _, size, _, _ in self._cswtch_symbols)
-        lines.append(
-            f"Total: {len(self._cswtch_symbols)} switch table(s), {total_size:,} B"
-        )
-        lines.append("")
-
-        # Group by component
-        by_component: dict[str, list[tuple[str, int, str]]] = defaultdict(list)
-        for sym_name, size, source_file, component in self._cswtch_symbols:
-            by_component[component].append((sym_name, size, source_file))
-
-        # Sort components by total size descending
-        sorted_components = sorted(
-            by_component.items(),
-            key=lambda x: sum(s[1] for s in x[1]),
-            reverse=True,
-        )
-
-        for component, symbols in sorted_components:
-            comp_total = sum(s[1] for s in symbols)
-            lines.append(f"{component} ({comp_total:,} B, {len(symbols)} tables):")
-
-            # Group by source file within component
-            by_file: dict[str, list[tuple[str, int]]] = defaultdict(list)
-            for sym_name, size, source_file in symbols:
-                by_file[source_file].append((sym_name, size))
-
-            for source_file, file_symbols in sorted(
-                by_file.items(),
-                key=lambda x: sum(s[1] for s in x[1]),
-                reverse=True,
-            ):
-                file_total = sum(s[1] for s in file_symbols)
-                lines.append(
-                    f"  {source_file} ({file_total:,} B, {len(file_symbols)} tables)"
-                )
-                for sym_name, size in sorted(
-                    file_symbols, key=lambda x: x[1], reverse=True
-                ):
-                    lines.append(f"    {size:>6,} B  {sym_name}")
-            lines.append("")
-
-    # Number of top called functions to show
-    TOP_CALLS_LIMIT: int = 50
-    # Number of inlining candidates to show
-    INLINE_CANDIDATES_LIMIT: int = 25
-    # Maximum function size in bytes to consider for inlining
-    INLINE_SIZE_THRESHOLD: int = 16
-
-    def _build_symbol_sizes(self) -> dict[str, int]:
-        """Build a size lookup from all component symbols: mangled_name -> size."""
-        return {
-            symbol: size
-            for symbols in self._component_symbols.values()
-            for symbol, _, size, _ in symbols
-        }
-
-    def _format_call_row(
-        self, index: int, mangled: str, count: int, symbol_sizes: dict[str, int]
-    ) -> str:
-        """Format a single row for call frequency tables."""
-        demangled = self._demangle_cache.get(mangled, mangled)
-        if len(demangled) > 80:
-            demangled = f"{demangled[:77]}..."
-        size = symbol_sizes.get(mangled)
-        size_str = f"{size:>5,} B" if size is not None else "      ?"
-        return f"{index:>3}  {count:>5}  {size_str}  {demangled}"
-
-    def _add_call_table_header(self, lines: list[str]) -> None:
-        """Add the header row for call frequency tables."""
-        lines.append(f"{'#':>3}  {'Calls':>5}  {'Size':>7}  Function")
-        lines.append(f"{'---':>3}  {'-----':>5}  {'-------':>7}  {'-' * 60}")
-
-    def _add_function_call_analysis(self, lines: list[str]) -> None:
-        """Add function call frequency analysis section.
-
-        Shows the most frequently called functions by call site count.
-        """
-        self._add_section_header(lines, "Top Called Functions")
-
-        symbol_sizes = self._build_symbol_sizes()
-
-        # Sort by call count descending
-        sorted_calls = sorted(
-            self._function_call_counts.items(), key=lambda x: x[1], reverse=True
-        )
-
-        self._add_call_table_header(lines)
-
-        for i, (mangled, count) in enumerate(sorted_calls[: self.TOP_CALLS_LIMIT]):
-            lines.append(self._format_call_row(i + 1, mangled, count, symbol_sizes))
-
-        total_calls = sum(self._function_call_counts.values())
-        lines.append("")
-        lines.append(
-            f"Total: {len(self._function_call_counts)} unique targets, "
-            f"{total_calls:,} call sites"
-        )
-        lines.append("")
-
-    def _add_inline_candidates(self, lines: list[str]) -> None:
-        """Add inlining candidates section.
-
-        Shows frequently called functions that are small enough to benefit
-        from inlining (< 16 bytes). These are the best candidates for
-        reducing call overhead.
-        """
-        self._add_section_header(
-            lines,
-            f"Inlining Candidates (<{self.INLINE_SIZE_THRESHOLD} B, by call count)",
-        )
-
-        symbol_sizes = self._build_symbol_sizes()
-
-        # Filter to small functions with known size, sort by call count
-        candidates = sorted(
-            (
-                (mangled, count)
-                for mangled, count in self._function_call_counts.items()
-                if mangled in symbol_sizes
-                and symbol_sizes[mangled] < self.INLINE_SIZE_THRESHOLD
-            ),
-            key=lambda x: x[1],
-            reverse=True,
-        )
-
-        if not candidates:
-            lines.append("No candidates found.")
-            lines.append("")
-            return
-
-        self._add_call_table_header(lines)
-
-        for i, (mangled, count) in enumerate(
-            candidates[: self.INLINE_CANDIDATES_LIMIT]
-        ):
-            lines.append(self._format_call_row(i + 1, mangled, count, symbol_sizes))
-
-        lines.append("")
-        lines.append(
-            f"Showing top {min(len(candidates), self.INLINE_CANDIDATES_LIMIT)} "
-            f"of {len(candidates)} functions under "
-            f"{self.INLINE_SIZE_THRESHOLD} B"
-        )
-        lines.append("")
+        return f"{demangled} ({size:,} B){section_label}"
 
     def generate_report(self, detailed: bool = False) -> str:
         """Generate a formatted memory report."""
@@ -453,9 +248,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             "RAM",
         )
 
-        # Top largest symbols in the binary
-        self._add_top_symbols(lines)
-
         # Add ESPHome core detailed analysis if there are core symbols
         if self._esphome_core_symbols:
             self._add_section_header(lines, f"{_COMPONENT_CORE} Detailed Analysis")
@@ -529,11 +321,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             for name, mem in components
             if name.startswith(_COMPONENT_PREFIX_EXTERNAL)
         ]
-        library_components = [
-            (name, mem)
-            for name, mem in components
-            if name.startswith(_COMPONENT_PREFIX_LIB)
-        ]
 
         top_esphome_components = sorted(
             esphome_components, key=lambda x: x[1].flash_total, reverse=True
@@ -544,11 +331,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             external_components, key=lambda x: x[1].flash_total, reverse=True
         )
 
-        # Include all library components
-        top_library_components = sorted(
-            library_components, key=lambda x: x[1].flash_total, reverse=True
-        )
-
         # Check if API component exists and ensure it's included
         api_component = None
         for name, mem in components:
@@ -567,11 +349,10 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             if name in system_components_to_include
         ]
 
-        # Combine all components to analyze: top ESPHome + all external + libraries + API if not already included + system components
+        # Combine all components to analyze: top ESPHome + all external + API if not already included + system components
         components_to_analyze = (
             list(top_esphome_components)
             + list(top_external_components)
-            + list(top_library_components)
             + system_components
         )
         if api_component and api_component not in components_to_analyze:
@@ -590,16 +371,15 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                 lines.append(f"Total size: {comp_mem.flash_total:,} B")
                 lines.append("")
 
-                # Show symbols above threshold, always include storage symbols
+                # Show all symbols above threshold for better visibility
                 large_symbols = [
                     (sym, dem, size, sec)
                     for sym, dem, size, sec in sorted_symbols
                     if size > self.SYMBOL_SIZE_THRESHOLD
-                    or dem.endswith(_PSTORAGE_SUFFIX)
                 ]
 
                 lines.append(
-                    f"{comp_name} Symbols > {self.SYMBOL_SIZE_THRESHOLD} B & storage ({len(large_symbols)} symbols):"
+                    f"{comp_name} Symbols > {self.SYMBOL_SIZE_THRESHOLD} B ({len(large_symbols)} symbols):"
                 )
                 for i, (symbol, demangled, size, section) in enumerate(large_symbols):
                     lines.append(
@@ -622,10 +402,7 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
             # Sort by size descending
             sorted_ram_syms = sorted(ram_syms, key=lambda x: x[2], reverse=True)
             large_ram_syms = [
-                s
-                for s in sorted_ram_syms
-                if s[2] > self.RAM_SYMBOL_SIZE_THRESHOLD
-                or s[1].endswith(_PSTORAGE_SUFFIX)
+                s for s in sorted_ram_syms if s[2] > self.RAM_SYMBOL_SIZE_THRESHOLD
             ]
 
             lines.append(f"{name} ({mem.ram_total:,} B total RAM):")
@@ -643,27 +420,17 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                 for symbol, demangled, size, section in large_ram_syms[:10]:
                     # Format section label consistently by stripping leading dot
                     section_label = section.lstrip(".") if section else ""
-                    display_name = _format_pstorage_name(demangled)
                     # Add ellipsis if name is truncated
-                    display_name = (
-                        f"{display_name[:70]}..."
-                        if len(display_name) > 70
-                        else display_name
+                    demangled_display = (
+                        f"{demangled[:70]}..." if len(demangled) > 70 else demangled
+                    )
+                    lines.append(
+                        f"    {size:>6,} B [{section_label}] {demangled_display}"
                     )
-                    lines.append(f"    {size:>6,} B [{section_label}] {display_name}")
                 if len(large_ram_syms) > 10:
                     lines.append(f"    ... and {len(large_ram_syms) - 10} more")
             lines.append("")
 
-        # CSWTCH (GCC switch table) analysis
-        if self._cswtch_symbols:
-            self._add_cswtch_analysis(lines)
-
-        # Function call frequency analysis
-        if self._function_call_counts:
-            self._add_function_call_analysis(lines)
-            self._add_inline_candidates(lines)
-
         lines.append(
             "Note: This analysis covers symbols in the ELF file. Some runtime allocations may not be included."
         )

esphome/analyze_memory/const.py

@@ -66,6 +66,15 @@ SECTION_MAPPING = {
     ),
 }
 
+# Section to ComponentMemory attribute mapping
+# Maps section names to the attribute name in ComponentMemory dataclass
+SECTION_TO_ATTR = {
+    ".text": "text_size",
+    ".rodata": "rodata_size",
+    ".data": "data_size",
+    ".bss": "bss_size",
+}
+
 # Component identification rules
 # Symbol patterns: patterns found in raw symbol names
 SYMBOL_PATTERNS = {
@@ -256,7 +265,7 @@ SYMBOL_PATTERNS = {
     "ipv6_stack": ["nd6_", "ip6_", "mld6_", "icmp6_", "icmp6_input"],
     # Order matters! More specific categories must come before general ones.
     # mdns must come before bluetooth to avoid "_mdns_disable_pcb" matching "ble_" pattern
-    "mdns_lib": ["mdns", "packet$"],
+    "mdns_lib": ["mdns"],
     # memory_mgmt must come before wifi_stack to catch mmu_hal_* symbols
     "memory_mgmt": [
         "mem_",
@@ -408,6 +417,7 @@ SYMBOL_PATTERNS = {
     ],
     "arduino_core": [
         "pinMode",
+        "resetPins",
         "millis",
         "micros",
         "delay(",  # More specific - Arduino delay function with parenthesis
@@ -503,9 +513,7 @@ SYMBOL_PATTERNS = {
         "__FUNCTION__$",
         "DAYS_IN_MONTH",
         "_DAYS_BEFORE_MONTH",
-        # Note: CSWTCH$ symbols are GCC switch table lookup tables.
-        # They are attributed to their source object files via _analyze_cswtch_symbols()
-        # rather than being lumped into libc.
+        "CSWTCH$",
         "dst$",
         "sulp",
         "_strtol_l",  # String to long with locale
@@ -793,6 +801,7 @@ SYMBOL_PATTERNS = {
         "s_dp",
         "s_ni",
         "s_reg_dump",
+        "packet$",
         "d_mult_table",
         "K",
         "fcstab",

esphome/automation.py

@@ -1,6 +1,3 @@
-from dataclasses import dataclass, field
-import logging
-
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import (
@@ -60,42 +57,8 @@ def maybe_conf(conf, *validators):
     return validate
 
 
-_LOGGER = logging.getLogger(__name__)
-
-
-def register_action(
-    name: str,
-    action_type: MockObjClass,
-    schema: cv.Schema,
-    *,
-    synchronous: bool | None = None,
-):
-    """Register an action type.
-
-    All callers must pass ``synchronous`` explicitly.
-
-    ``synchronous=True`` — the action never defers ``play_next_()`` to a
-    later point (callback, timer, or ``loop()``).  Trigger arguments are
-    only used during the initial call, so string args can use non-owning
-    StringRef for zero-copy access.
-
-    ``synchronous=False`` — the action defers ``play_next_()`` via a
-    callback, timer, or ``Component::loop()``.  Trigger arguments must
-    outlive the initial call, so string args use owning std::string to
-    prevent dangling references.
-    """
-    if synchronous is None:
-        _LOGGER.warning(
-            "register_action('%s', ...) is missing the synchronous= parameter. "
-            "Defaulting to synchronous=False (safe but prevents StringRef "
-            "optimization). Check the C++ class: use synchronous=False if "
-            "play_next_() is deferred to a callback, timer, or loop(); "
-            "use synchronous=True if play_next_() always runs before the "
-            "initial play/play_complex call returns",
-            name,
-        )
-        synchronous = False
-    return ACTION_REGISTRY.register(name, action_type, schema, synchronous=synchronous)
+def register_action(name: str, action_type: MockObjClass, schema: cv.Schema):
+    return ACTION_REGISTRY.register(name, action_type, schema)
 
 
 def register_condition(name: str, condition_type: MockObjClass, schema: cv.Schema):
@@ -138,9 +101,6 @@ UpdateComponentAction = cg.esphome_ns.class_("UpdateComponentAction", Action)
 SuspendComponentAction = cg.esphome_ns.class_("SuspendComponentAction", Action)
 ResumeComponentAction = cg.esphome_ns.class_("ResumeComponentAction", Action)
 Automation = cg.esphome_ns.class_("Automation")
-TriggerForwarder = cg.esphome_ns.class_("TriggerForwarder")
-TriggerOnTrueForwarder = cg.esphome_ns.class_("TriggerOnTrueForwarder")
-TriggerOnFalseForwarder = cg.esphome_ns.class_("TriggerOnFalseForwarder")
 
 LambdaCondition = cg.esphome_ns.class_("LambdaCondition", Condition)
 StatelessLambdaCondition = cg.esphome_ns.class_("StatelessLambdaCondition", Condition)
@@ -199,10 +159,11 @@ def validate_automation(extra_schema=None, extra_validators=None, single=False):
                     return cv.Schema([schema])(value)
                 except cv.Invalid as err2:
                     if "extra keys not allowed" in str(err2) and len(err2.path) == 2:
-                        raise err from None
+                        # pylint: disable=raise-missing-from
+                        raise err
                     if "Unable to find action" in str(err):
-                        raise err2 from None
-                    raise cv.MultipleInvalid([err, err2]) from None
+                        raise err2
+                    raise cv.MultipleInvalid([err, err2])
         elif isinstance(value, dict):
             if CONF_THEN in value:
                 return [schema(value)]
@@ -250,9 +211,7 @@ async def and_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     conditions = await build_condition_list(config, template_arg, args)
-    return cg.new_Pvariable(
-        condition_id, cg.TemplateArguments(len(conditions), *template_arg), conditions
-    )
+    return cg.new_Pvariable(condition_id, template_arg, conditions)
 
 
 @register_condition("or", OrCondition, validate_condition_list)
@@ -263,9 +222,7 @@ async def or_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     conditions = await build_condition_list(config, template_arg, args)
-    return cg.new_Pvariable(
-        condition_id, cg.TemplateArguments(len(conditions), *template_arg), conditions
-    )
+    return cg.new_Pvariable(condition_id, template_arg, conditions)
 
 
 @register_condition("all", AndCondition, validate_condition_list)
@@ -276,9 +233,7 @@ async def all_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     conditions = await build_condition_list(config, template_arg, args)
-    return cg.new_Pvariable(
-        condition_id, cg.TemplateArguments(len(conditions), *template_arg), conditions
-    )
+    return cg.new_Pvariable(condition_id, template_arg, conditions)
 
 
 @register_condition("any", OrCondition, validate_condition_list)
@@ -289,9 +244,7 @@ async def any_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     conditions = await build_condition_list(config, template_arg, args)
-    return cg.new_Pvariable(
-        condition_id, cg.TemplateArguments(len(conditions), *template_arg), conditions
-    )
+    return cg.new_Pvariable(condition_id, template_arg, conditions)
 
 
 @register_condition("not", NotCondition, validate_potentially_and_condition)
@@ -313,9 +266,7 @@ async def xor_condition_to_code(
     args: TemplateArgsType,
 ) -> MockObj:
     conditions = await build_condition_list(config, template_arg, args)
-    return cg.new_Pvariable(
-        condition_id, cg.TemplateArguments(len(conditions), *template_arg), conditions
-    )
+    return cg.new_Pvariable(condition_id, template_arg, conditions)
 
 
 @register_condition("lambda", LambdaCondition, cv.returning_lambda)
@@ -384,10 +335,7 @@ async def component_is_idle_condition_to_code(
 
 
 @register_action(
-    "delay",
-    DelayAction,
-    cv.templatable(cv.positive_time_period_milliseconds),
-    synchronous=False,
+    "delay", DelayAction, cv.templatable(cv.positive_time_period_milliseconds)
 )
 async def delay_action_to_code(
     config: ConfigType,
@@ -418,7 +366,6 @@ async def delay_action_to_code(
         cv.has_at_least_one_key(CONF_THEN, CONF_ELSE),
         cv.has_at_least_one_key(CONF_CONDITION, CONF_ANY, CONF_ALL),
     ),
-    synchronous=True,
 )
 async def if_action_to_code(
     config: ConfigType,
@@ -426,16 +373,13 @@ async def if_action_to_code(
     template_arg: cg.TemplateArguments,
     args: TemplateArgsType,
 ) -> MockObj:
-    has_else = CONF_ELSE in config
-    # Prepend HasElse bool to template arguments: IfAction<HasElse, Ts...>
-    if_template_arg = cg.TemplateArguments(has_else, *template_arg)
     cond_conf = next(el for el in config if el in (CONF_ANY, CONF_ALL, CONF_CONDITION))
     condition = await build_condition(config[cond_conf], template_arg, args)
-    var = cg.new_Pvariable(action_id, if_template_arg, condition)
+    var = cg.new_Pvariable(action_id, template_arg, condition)
     if CONF_THEN in config:
         actions = await build_action_list(config[CONF_THEN], template_arg, args)
         cg.add(var.add_then(actions))
-    if has_else:
+    if CONF_ELSE in config:
         actions = await build_action_list(config[CONF_ELSE], template_arg, args)
         cg.add(var.add_else(actions))
     return var
@@ -450,7 +394,6 @@ async def if_action_to_code(
             cv.Required(CONF_THEN): validate_action_list,
         }
     ),
-    synchronous=True,
 )
 async def while_action_to_code(
     config: ConfigType,
@@ -474,7 +417,6 @@ async def while_action_to_code(
             cv.Required(CONF_THEN): validate_action_list,
         }
     ),
-    synchronous=True,
 )
 async def repeat_action_to_code(
     config: ConfigType,
@@ -503,7 +445,7 @@ _validate_wait_until = cv.maybe_simple_value(
 )
 
 
-@register_action("wait_until", WaitUntilAction, _validate_wait_until, synchronous=False)
+@register_action("wait_until", WaitUntilAction, _validate_wait_until)
 async def wait_until_action_to_code(
     config: ConfigType,
     action_id: ID,
@@ -519,12 +461,7 @@ async def wait_until_action_to_code(
     return var
 
 
-# Lambda executes user C++ inline and returns — synchronous by execution model.
-# User code could theoretically store the StringRef for deferred use, but StringRef
-# is a view type and storing views beyond their scope is always unsafe regardless
-# of this optimization.  Marking non-synchronous would disable StringRef for nearly
-# all user services since most use lambda.
-@register_action("lambda", LambdaAction, cv.lambda_, synchronous=True)
+@register_action("lambda", LambdaAction, cv.lambda_)
 async def lambda_action_to_code(
     config: ConfigType,
     action_id: ID,
@@ -543,7 +480,6 @@ async def lambda_action_to_code(
             cv.Required(CONF_ID): cv.use_id(cg.PollingComponent),
         }
     ),
-    synchronous=True,
 )
 async def component_update_action_to_code(
     config: ConfigType,
@@ -563,7 +499,6 @@ async def component_update_action_to_code(
             cv.Required(CONF_ID): cv.use_id(cg.PollingComponent),
         }
     ),
-    synchronous=True,
 )
 async def component_suspend_action_to_code(
     config: ConfigType,
@@ -586,7 +521,6 @@ async def component_suspend_action_to_code(
             ),
         }
     ),
-    synchronous=True,
 )
 async def component_resume_action_to_code(
     config: ConfigType,
@@ -644,27 +578,6 @@ async def build_condition_list(
     return conditions
 
 
-def has_non_synchronous_actions(actions: ConfigType) -> bool:
-    """Check if a validated action list contains any non-synchronous actions.
-
-    Non-synchronous actions (delay, wait_until, script.wait, etc.) store
-    trigger args for later execution, making non-owning types like StringRef
-    unsafe.
-    """
-    if isinstance(actions, list):
-        return any(has_non_synchronous_actions(item) for item in actions)
-    if isinstance(actions, dict):
-        for key in actions:
-            if key in ACTION_REGISTRY and not ACTION_REGISTRY[key].synchronous:
-                return True
-        return any(
-            has_non_synchronous_actions(v)
-            for v in actions.values()
-            if isinstance(v, (list, dict))
-        )
-    return False
-
-
 async def build_automation(
     trigger: MockObj, args: TemplateArgsType, config: ConfigType
 ) -> MockObj:
@@ -674,76 +587,3 @@ async def build_automation(
     actions = await build_action_list(config[CONF_THEN], templ, args)
     cg.add(obj.add_actions(actions))
     return obj
-
-
-async def build_callback_automation(
-    parent: MockObj,
-    callback_method: str,
-    args: TemplateArgsType,
-    config: ConfigType,
-    forwarder: MockObj | MockObjClass | None = None,
-) -> None:
-    """Build an Automation and register it as a callback on the parent.
-
-    Eliminates the need for a Trigger wrapper object by registering the
-    automation's trigger() directly as a callback on the parent component.
-
-    Uses template forwarder structs so the compiler deduplicates the operator()
-    body across all call sites with the same signature. The forwarder must be
-    pointer-sized (single Automation* field) to fit inline in Callback::ctx_
-    and avoid heap allocation.
-
-    :param parent: The component object (e.g., button, sensor).
-    :param callback_method: Name of the callback method (e.g., "add_on_press_callback").
-    :param args: Automation template args as list of (type, name) tuples.
-    :param config: The automation config dict.
-    :param forwarder: Optional forwarder type to use instead of the default
-        TriggerForwarder<Ts...>. Pass any struct type whose aggregate init takes
-        a single Automation pointer (e.g., TriggerOnTrueForwarder).
-    """
-    arg_types = [arg[0] for arg in args]
-    templ = cg.TemplateArguments(*arg_types)
-    obj = cg.new_Pvariable(config[CONF_AUTOMATION_ID], templ)
-    actions = await build_action_list(config[CONF_THEN], templ, args)
-    cg.add(obj.add_actions(actions))
-    # Use template forwarder structs for deduplication. The compiler generates
-    # one operator() per forwarder type; different automation pointers are just
-    # data in the struct.
-    if forwarder is None:
-        forwarder = TriggerForwarder.template(templ)
-    # RawExpression for aggregate init — both forwarder and obj are codegen
-    # MockObjs (not user input), and there's no Expression type for positional
-    # aggregate initialization (StructInitializer uses named fields).
-    cg.add(getattr(parent, callback_method)(cg.RawExpression(f"{forwarder}{{{obj}}}")))
-
-
-@dataclass(frozen=True, slots=True)
-class CallbackAutomation:
-    """A single callback automation entry for build_callback_automations."""
-
-    conf_key: str
-    callback_method: str
-    args: TemplateArgsType = field(default_factory=list)
-    forwarder: MockObj | MockObjClass | None = None
-
-
-async def build_callback_automations(
-    parent: MockObj,
-    config: ConfigType,
-    entries: tuple[CallbackAutomation, ...],
-) -> None:
-    """Build multiple callback automations from a tuple of entries.
-
-    :param parent: The component object (e.g., button, sensor).
-    :param config: The full component config dict.
-    :param entries: Tuple of CallbackAutomation entries to process.
-    """
-    for entry in entries:
-        for conf in config.get(entry.conf_key, []):
-            await build_callback_automation(
-                parent,
-                entry.callback_method,
-                entry.args,
-                conf,
-                forwarder=entry.forwarder,
-            )

esphome/build_gen/espidf.py

@@ -53,13 +53,6 @@ def get_project_cmakelists() -> str:
     variant = get_esp32_variant()
     idf_target = variant.lower().replace("-", "")
 
-    # Extract compile definitions from build flags (-DXXX -> XXX)
-    compile_defs = [flag for flag in CORE.build_flags if flag.startswith("-D")]
-    extra_compile_options = "\n".join(
-        f'idf_build_set_property(COMPILE_OPTIONS "{compile_def}" APPEND)'
-        for compile_def in compile_defs
-    )
-
     return f"""\
 # Auto-generated by ESPHome
 cmake_minimum_required(VERSION 3.16)
@@ -68,9 +61,6 @@ set(IDF_TARGET {idf_target})
 set(EXTRA_COMPONENT_DIRS ${{CMAKE_SOURCE_DIR}}/src)
 
 include($ENV{{IDF_PATH}}/tools/cmake/project.cmake)
-
-{extra_compile_options}
-
 project({CORE.name})
 """
 
@@ -80,17 +70,21 @@ def get_component_cmakelists(minimal: bool = False) -> str:
     idf_requires = [] if minimal else (get_available_components() or [])
     requires_str = " ".join(idf_requires)
 
+    # Extract compile definitions from build flags (-DXXX -> XXX)
+    compile_defs = [flag[2:] for flag in CORE.build_flags if flag.startswith("-D")]
+    compile_defs_str = "\n    ".join(compile_defs) if compile_defs else ""
+
     # Extract compile options (-W flags, excluding linker flags)
     compile_opts = [
         flag
         for flag in CORE.build_flags
         if flag.startswith("-W") and not flag.startswith("-Wl,")
     ]
-    compile_opts_str = "\n    ".join(sorted(compile_opts)) if compile_opts else ""
+    compile_opts_str = "\n    ".join(compile_opts) if compile_opts else ""
 
     # Extract linker options (-Wl, flags)
     link_opts = [flag for flag in CORE.build_flags if flag.startswith("-Wl,")]
-    link_opts_str = "\n    ".join(sorted(link_opts)) if link_opts else ""
+    link_opts_str = "\n    ".join(link_opts) if link_opts else ""
 
     return f"""\
 # Auto-generated by ESPHome
@@ -110,6 +104,11 @@ idf_component_register(
 # Apply C++ standard
 target_compile_features(${{COMPONENT_LIB}} PUBLIC cxx_std_20)
 
+# ESPHome compile definitions
+target_compile_definitions(${{COMPONENT_LIB}} PUBLIC
+    {compile_defs_str}
+)
+
 # ESPHome compile options
 target_compile_options(${{COMPONENT_LIB}} PUBLIC
     {compile_opts_str}

esphome/bundle.py

@@ -1,765 +0,0 @@
-"""Config bundle creator and extractor for ESPHome.
-
-A bundle is a self-contained .tar.gz archive containing a YAML config
-and every local file it depends on. Bundles can be created from a config
-and compiled directly: ``esphome compile my_device.esphomebundle.tar.gz``
-"""
-
-from __future__ import annotations
-
-from dataclasses import dataclass
-from enum import StrEnum
-import io
-import json
-import logging
-from pathlib import Path
-import re
-import shutil
-import tarfile
-from typing import Any
-
-from esphome import const, yaml_util
-from esphome.const import (
-    CONF_ESPHOME,
-    CONF_EXTERNAL_COMPONENTS,
-    CONF_INCLUDES,
-    CONF_INCLUDES_C,
-    CONF_PATH,
-    CONF_SOURCE,
-    CONF_TYPE,
-)
-from esphome.core import CORE, EsphomeError
-
-_LOGGER = logging.getLogger(__name__)
-
-BUNDLE_EXTENSION = ".esphomebundle.tar.gz"
-MANIFEST_FILENAME = "manifest.json"
-CURRENT_MANIFEST_VERSION = 1
-MAX_DECOMPRESSED_SIZE = 500 * 1024 * 1024  # 500 MB
-MAX_MANIFEST_SIZE = 1024 * 1024  # 1 MB
-
-# Directories preserved across bundle extractions (build caches)
-_PRESERVE_DIRS = (".esphome", ".pioenvs", ".pio")
-_BUNDLE_STAGING_DIR = ".bundle_staging"
-
-
-class ManifestKey(StrEnum):
-    """Keys used in bundle manifest.json."""
-
-    MANIFEST_VERSION = "manifest_version"
-    ESPHOME_VERSION = "esphome_version"
-    CONFIG_FILENAME = "config_filename"
-    FILES = "files"
-    HAS_SECRETS = "has_secrets"
-
-
-# String prefixes that are never local file paths
-_NON_PATH_PREFIXES = ("http://", "https://", "ftp://", "mdi:", "<")
-
-# File extensions recognized when resolving relative path strings.
-# A relative string with one of these extensions is resolved against the
-# config directory and included if the file exists.
-_KNOWN_FILE_EXTENSIONS = frozenset(
-    {
-        # Fonts
-        ".ttf",
-        ".otf",
-        ".woff",
-        ".woff2",
-        ".pcf",
-        ".bdf",
-        # Images
-        ".png",
-        ".jpg",
-        ".jpeg",
-        ".bmp",
-        ".gif",
-        ".svg",
-        ".ico",
-        ".webp",
-        # Certificates
-        ".pem",
-        ".crt",
-        ".key",
-        ".der",
-        ".p12",
-        ".pfx",
-        # C/C++ includes
-        ".h",
-        ".hpp",
-        ".c",
-        ".cpp",
-        ".ino",
-        # Web assets
-        ".css",
-        ".js",
-        ".html",
-    }
-)
-
-
-# Matches !secret references in YAML text.  This is intentionally a simple
-# regex scan rather than a YAML parse — it may match inside comments or
-# multi-line strings, which is the conservative direction (include more
-# secrets rather than fewer).
-_SECRET_RE = re.compile(r"!secret\s+(\S+)")
-
-
-def _find_used_secret_keys(yaml_files: list[Path]) -> set[str]:
-    """Scan YAML files for ``!secret <key>`` references."""
-    keys: set[str] = set()
-    for fpath in yaml_files:
-        try:
-            text = fpath.read_text(encoding="utf-8")
-        except (OSError, UnicodeDecodeError):
-            continue
-        for match in _SECRET_RE.finditer(text):
-            keys.add(match.group(1))
-    return keys
-
-
-@dataclass
-class BundleFile:
-    """A file to include in the bundle."""
-
-    path: str  # Relative path inside the archive
-    source: Path  # Absolute path on disk
-
-
-@dataclass
-class BundleResult:
-    """Result of creating a bundle."""
-
-    data: bytes
-    manifest: dict[str, Any]
-    files: list[BundleFile]
-
-
-@dataclass
-class BundleManifest:
-    """Parsed and validated bundle manifest."""
-
-    manifest_version: int
-    esphome_version: str
-    config_filename: str
-    files: list[str]
-    has_secrets: bool
-
-
-class ConfigBundleCreator:
-    """Creates a self-contained bundle from an ESPHome config."""
-
-    def __init__(self, config: dict[str, Any]) -> None:
-        self._config = config
-        self._config_dir = Path(CORE.config_dir).resolve()
-        self._config_path = Path(CORE.config_path).resolve()
-        self._files: list[BundleFile] = []
-        self._seen_paths: set[Path] = set()
-        self._secrets_paths: set[Path] = set()
-
-    def discover_files(self) -> list[BundleFile]:
-        """Discover all files needed for the bundle."""
-        self._files = []
-        self._seen_paths = set()
-        self._secrets_paths = set()
-
-        # The main config file
-        self._add_file(self._config_path)
-
-        # Phase 1: YAML includes (tracked during config loading)
-        self._discover_yaml_includes()
-
-        # Phase 2: Component-referenced files from validated config
-        self._discover_component_files()
-
-        return list(self._files)
-
-    def create_bundle(self) -> BundleResult:
-        """Create the bundle archive."""
-        files = self.discover_files()
-
-        # Determine which secret keys are actually referenced by the
-        # bundled YAML files so we only ship those, not the entire
-        # secrets.yaml which may contain secrets for other devices.
-        yaml_sources = [
-            bf.source for bf in files if bf.source.suffix in (".yaml", ".yml")
-        ]
-        used_secret_keys = _find_used_secret_keys(yaml_sources)
-        filtered_secrets = self._build_filtered_secrets(used_secret_keys)
-
-        has_secrets = bool(filtered_secrets)
-        if has_secrets:
-            _LOGGER.warning(
-                "Bundle contains secrets (e.g. Wi-Fi passwords). "
-                "Do not share it with untrusted parties."
-            )
-
-        manifest = self._build_manifest(files, has_secrets=has_secrets)
-
-        buf = io.BytesIO()
-        with tarfile.open(fileobj=buf, mode="w:gz") as tar:
-            # Add manifest first
-            manifest_data = json.dumps(manifest, indent=2).encode("utf-8")
-            _add_bytes_to_tar(tar, MANIFEST_FILENAME, manifest_data)
-
-            # Add filtered secrets files
-            for rel_path, data in sorted(filtered_secrets.items()):
-                _add_bytes_to_tar(tar, rel_path, data)
-
-            # Add files in sorted order for determinism, skipping secrets
-            # files which were already added above with filtered content
-            for bf in sorted(files, key=lambda f: f.path):
-                if bf.source in self._secrets_paths:
-                    continue
-                self._add_to_tar(tar, bf)
-
-        return BundleResult(data=buf.getvalue(), manifest=manifest, files=files)
-
-    def _add_file(self, abs_path: Path) -> bool:
-        """Add a file to the bundle. Returns False if already added."""
-        abs_path = abs_path.resolve()
-        if abs_path in self._seen_paths:
-            return False
-        if not abs_path.is_file():
-            _LOGGER.warning("Bundle: skipping missing file %s", abs_path)
-            return False
-
-        rel_path = self._relative_to_config_dir(abs_path)
-        if rel_path is None:
-            _LOGGER.warning(
-                "Bundle: skipping file outside config directory: %s", abs_path
-            )
-            return False
-
-        self._seen_paths.add(abs_path)
-        self._files.append(BundleFile(path=rel_path, source=abs_path))
-        return True
-
-    def _add_directory(self, abs_path: Path) -> None:
-        """Recursively add all files in a directory."""
-        abs_path = abs_path.resolve()
-        if not abs_path.is_dir():
-            _LOGGER.warning("Bundle: skipping missing directory %s", abs_path)
-            return
-        for child in sorted(abs_path.rglob("*")):
-            if child.is_file() and "__pycache__" not in child.parts:
-                self._add_file(child)
-
-    def _relative_to_config_dir(self, abs_path: Path) -> str | None:
-        """Get a path relative to the config directory. Returns None if outside.
-
-        Always uses forward slashes for consistency in tar archives.
-        """
-        try:
-            return abs_path.relative_to(self._config_dir).as_posix()
-        except ValueError:
-            return None
-
-    def _discover_yaml_includes(self) -> None:
-        """Discover YAML files loaded during config parsing.
-
-        Deliberately uses a fresh re-parse and force-loads every deferred
-        ``IncludeFile`` to include *all* potentially-reachable includes,
-        even branches not selected by the local substitutions. Bundles are
-        meant to be compiled on another system where command-line
-        substitution overrides may choose a different branch — e.g.
-        ``!include network/${eth_model}/config.yaml`` must ship every
-        candidate so the remote build can pick any one.
-
-        Entries with unresolved substitution variables in the filename
-        path are skipped with a warning (they cannot be resolved without
-        the substitution pass).
-
-        Secrets files are tracked separately so we can filter them to
-        only include the keys this config actually references.
-        """
-        # Must be a fresh parse: IncludeFile.load() caches its result in
-        # _content, and we discover files by listening for loader calls. On
-        # an already-parsed tree the cache is populated, .load() returns
-        # without calling the loader, the listener never fires, and the
-        # referenced files would be silently dropped from the bundle.
-        with yaml_util.track_yaml_loads() as loaded_files:
-            try:
-                data = yaml_util.load_yaml(self._config_path)
-            except EsphomeError:
-                _LOGGER.debug(
-                    "Bundle: re-loading YAML for include discovery failed, "
-                    "proceeding with partial file list"
-                )
-            else:
-                _force_load_include_files(data)
-
-        for fpath in loaded_files:
-            if fpath == self._config_path.resolve():
-                continue  # Already added as config
-            if fpath.name in const.SECRETS_FILES:
-                self._secrets_paths.add(fpath)
-            self._add_file(fpath)
-
-    def _discover_component_files(self) -> None:
-        """Walk the validated config for file references.
-
-        Uses a generic recursive walk to find file paths instead of
-        hardcoding per-component knowledge about config dict formats.
-        After validation, components typically resolve paths to absolute
-        using CORE.relative_config_path() or cv.file_(). Relative paths
-        with known file extensions are also resolved and checked.
-
-        Core ESPHome concepts that use relative paths or directories
-        are handled explicitly.
-        """
-        config = self._config
-
-        # Generic walk: find all file paths in the validated config
-        self._walk_config_for_files(config)
-
-        # --- Core ESPHome concepts needing explicit handling ---
-
-        # esphome.includes / includes_c - can be relative paths and directories
-        esphome_conf = config.get(CONF_ESPHOME, {})
-        for include_path in esphome_conf.get(CONF_INCLUDES, []):
-            resolved = _resolve_include_path(include_path)
-            if resolved is None:
-                continue
-            if resolved.is_dir():
-                self._add_directory(resolved)
-            else:
-                self._add_file(resolved)
-        for include_path in esphome_conf.get(CONF_INCLUDES_C, []):
-            resolved = _resolve_include_path(include_path)
-            if resolved is not None:
-                self._add_file(resolved)
-
-        # external_components with source: local - directories
-        for ext_conf in config.get(CONF_EXTERNAL_COMPONENTS, []):
-            source = ext_conf.get(CONF_SOURCE, {})
-            if not isinstance(source, dict):
-                continue
-            if source.get(CONF_TYPE) != "local":
-                continue
-            path = source.get(CONF_PATH)
-            if not path:
-                continue
-            p = Path(path)
-            if not p.is_absolute():
-                p = CORE.relative_config_path(p)
-            self._add_directory(p)
-
-    def _walk_config_for_files(self, obj: Any) -> None:
-        """Recursively walk the config dict looking for file path references."""
-        if isinstance(obj, dict):
-            for value in obj.values():
-                self._walk_config_for_files(value)
-        elif isinstance(obj, (list, tuple)):
-            for item in obj:
-                self._walk_config_for_files(item)
-        elif isinstance(obj, Path):
-            if obj.is_absolute() and obj.is_file():
-                self._add_file(obj)
-        elif isinstance(obj, str):
-            self._check_string_path(obj)
-
-    def _check_string_path(self, value: str) -> None:
-        """Check if a string value is a local file reference."""
-        # Fast exits for strings that cannot be file paths
-        if len(value) < 2 or "\n" in value:
-            return
-        if value.startswith(_NON_PATH_PREFIXES):
-            return
-        # File paths must contain a path separator or a dot (for extension)
-        if "/" not in value and "\\" not in value and "." not in value:
-            return
-
-        p = Path(value)
-
-        # Absolute path - check if it points to an existing file
-        if p.is_absolute():
-            if p.is_file():
-                self._add_file(p)
-            return
-
-        # Relative path with a known file extension - likely a component
-        # validator that forgot to resolve to absolute via cv.file_() or
-        # CORE.relative_config_path(). Warn and try to resolve.
-        if p.suffix.lower() in _KNOWN_FILE_EXTENSIONS:
-            _LOGGER.warning(
-                "Bundle: non-absolute path in validated config: %s "
-                "(component validator should return absolute paths)",
-                value,
-            )
-            resolved = CORE.relative_config_path(p)
-            if resolved.is_file():
-                self._add_file(resolved)
-
-    def _build_filtered_secrets(self, used_keys: set[str]) -> dict[str, bytes]:
-        """Build filtered secrets files containing only the referenced keys.
-
-        Returns a dict mapping relative archive path to YAML bytes.
-        """
-        if not used_keys or not self._secrets_paths:
-            return {}
-
-        result: dict[str, bytes] = {}
-        for secrets_path in self._secrets_paths:
-            rel_path = self._relative_to_config_dir(secrets_path)
-            if rel_path is None:
-                continue
-            try:
-                all_secrets = yaml_util.load_yaml(secrets_path, clear_secrets=False)
-            except EsphomeError:
-                _LOGGER.warning("Bundle: failed to load secrets file %s", secrets_path)
-                continue
-            if not isinstance(all_secrets, dict):
-                continue
-            filtered = {k: v for k, v in all_secrets.items() if k in used_keys}
-            if filtered:
-                data = yaml_util.dump(filtered, show_secrets=True).encode("utf-8")
-                result[rel_path] = data
-        return result
-
-    def _build_manifest(
-        self, files: list[BundleFile], *, has_secrets: bool
-    ) -> dict[str, Any]:
-        """Build the manifest.json content."""
-        return {
-            ManifestKey.MANIFEST_VERSION: CURRENT_MANIFEST_VERSION,
-            ManifestKey.ESPHOME_VERSION: const.__version__,
-            ManifestKey.CONFIG_FILENAME: self._config_path.name,
-            ManifestKey.FILES: [f.path for f in files],
-            ManifestKey.HAS_SECRETS: has_secrets,
-        }
-
-    @staticmethod
-    def _add_to_tar(tar: tarfile.TarFile, bf: BundleFile) -> None:
-        """Add a BundleFile to the tar archive with deterministic metadata."""
-        with open(bf.source, "rb") as f:
-            _add_bytes_to_tar(tar, bf.path, f.read())
-
-
-def extract_bundle(
-    bundle_path: Path,
-    target_dir: Path | None = None,
-) -> Path:
-    """Extract a bundle archive and return the path to the config YAML.
-
-    Sanity checks reject path traversal, symlinks, absolute paths, and
-    oversized archives to prevent accidental file overwrites or extraction
-    outside the target directory.  These are **not** a security boundary —
-    bundles are assumed to come from the user's own machine or a trusted
-    build pipeline.
-
-    Args:
-        bundle_path: Path to the .tar.gz bundle file.
-        target_dir: Directory to extract into. If None, extracts next to
-                     the bundle file in a directory named after it.
-
-    Returns:
-        Absolute path to the extracted config YAML file.
-
-    Raises:
-        EsphomeError: If the bundle is invalid or extraction fails.
-    """
-
-    bundle_path = bundle_path.resolve()
-    if not bundle_path.is_file():
-        raise EsphomeError(f"Bundle file not found: {bundle_path}")
-
-    if target_dir is None:
-        target_dir = _default_target_dir(bundle_path)
-
-    target_dir = target_dir.resolve()
-    target_dir.mkdir(parents=True, exist_ok=True)
-
-    # Read and validate the archive
-    try:
-        with tarfile.open(bundle_path, "r:gz") as tar:
-            manifest = _read_manifest_from_tar(tar)
-            _validate_tar_members(tar, target_dir)
-            tar.extractall(path=target_dir, filter="data")
-    except tarfile.TarError as err:
-        raise EsphomeError(f"Failed to extract bundle: {err}") from err
-
-    config_filename = manifest[ManifestKey.CONFIG_FILENAME]
-    config_path = target_dir / config_filename
-    if not config_path.is_file():
-        raise EsphomeError(
-            f"Bundle manifest references config '{config_filename}' "
-            f"but it was not found in the archive"
-        )
-
-    return config_path
-
-
-def read_bundle_manifest(bundle_path: Path) -> BundleManifest:
-    """Read and validate the manifest from a bundle without full extraction.
-
-    Args:
-        bundle_path: Path to the .tar.gz bundle file.
-
-    Returns:
-        Parsed BundleManifest.
-
-    Raises:
-        EsphomeError: If the manifest is missing, invalid, or version unsupported.
-    """
-
-    try:
-        with tarfile.open(bundle_path, "r:gz") as tar:
-            manifest = _read_manifest_from_tar(tar)
-    except tarfile.TarError as err:
-        raise EsphomeError(f"Failed to read bundle: {err}") from err
-
-    return BundleManifest(
-        manifest_version=manifest[ManifestKey.MANIFEST_VERSION],
-        esphome_version=manifest.get(ManifestKey.ESPHOME_VERSION, "unknown"),
-        config_filename=manifest[ManifestKey.CONFIG_FILENAME],
-        files=manifest.get(ManifestKey.FILES, []),
-        has_secrets=manifest.get(ManifestKey.HAS_SECRETS, False),
-    )
-
-
-def _read_manifest_from_tar(tar: tarfile.TarFile) -> dict[str, Any]:
-    """Read and validate manifest.json from an open tar archive."""
-
-    try:
-        member = tar.getmember(MANIFEST_FILENAME)
-    except KeyError:
-        raise EsphomeError("Invalid bundle: missing manifest.json") from None
-
-    f = tar.extractfile(member)
-    if f is None:
-        raise EsphomeError("Invalid bundle: manifest.json is not a regular file")
-
-    if member.size > MAX_MANIFEST_SIZE:
-        raise EsphomeError(
-            f"Invalid bundle: manifest.json too large "
-            f"({member.size} bytes, max {MAX_MANIFEST_SIZE})"
-        )
-
-    try:
-        manifest = json.loads(f.read())
-    except (json.JSONDecodeError, UnicodeDecodeError) as err:
-        raise EsphomeError(f"Invalid bundle: malformed manifest.json: {err}") from err
-
-    # Version check
-    version = manifest.get(ManifestKey.MANIFEST_VERSION)
-    if version is None:
-        raise EsphomeError("Invalid bundle: manifest.json missing 'manifest_version'")
-    if not isinstance(version, int) or version < 1:
-        raise EsphomeError(
-            f"Invalid bundle: manifest_version must be a positive integer, got {version!r}"
-        )
-    if version > CURRENT_MANIFEST_VERSION:
-        raise EsphomeError(
-            f"Bundle manifest version {version} is newer than this ESPHome "
-            f"version supports (max {CURRENT_MANIFEST_VERSION}). "
-            f"Please upgrade ESPHome to compile this bundle."
-        )
-
-    # Required fields
-    if ManifestKey.CONFIG_FILENAME not in manifest:
-        raise EsphomeError("Invalid bundle: manifest.json missing 'config_filename'")
-
-    return manifest
-
-
-def _validate_tar_members(tar: tarfile.TarFile, target_dir: Path) -> None:
-    """Sanity-check tar members to prevent mistakes and accidental overwrites.
-
-    This is not a security boundary — bundles are created locally or come
-    from a trusted build pipeline.  The checks catch malformed archives
-    and common mistakes (stray absolute paths, ``..`` components) that
-    could silently overwrite unrelated files.
-    """
-
-    total_size = 0
-    for member in tar.getmembers():
-        # Reject absolute paths (Unix and Windows)
-        if member.name.startswith(("/", "\\")):
-            raise EsphomeError(
-                f"Invalid bundle: absolute path in archive: {member.name}"
-            )
-
-        # Reject path traversal (split on both / and \ for cross-platform)
-        parts = re.split(r"[/\\]", member.name)
-        if ".." in parts:
-            raise EsphomeError(
-                f"Invalid bundle: path traversal in archive: {member.name}"
-            )
-
-        # Reject symlinks
-        if member.issym() or member.islnk():
-            raise EsphomeError(f"Invalid bundle: symlink in archive: {member.name}")
-
-        # Ensure extraction stays within target_dir
-        target_path = (target_dir / member.name).resolve()
-        if not target_path.is_relative_to(target_dir):
-            raise EsphomeError(
-                f"Invalid bundle: file would extract outside target: {member.name}"
-            )
-
-        # Track total decompressed size
-        total_size += member.size
-        if total_size > MAX_DECOMPRESSED_SIZE:
-            raise EsphomeError(
-                f"Invalid bundle: decompressed size exceeds "
-                f"{MAX_DECOMPRESSED_SIZE // (1024 * 1024)}MB limit"
-            )
-
-
-def is_bundle_path(path: Path) -> bool:
-    """Check if a path looks like a bundle file."""
-    return path.name.lower().endswith(BUNDLE_EXTENSION)
-
-
-def _add_bytes_to_tar(tar: tarfile.TarFile, name: str, data: bytes) -> None:
-    """Add in-memory bytes to a tar archive with deterministic metadata."""
-    info = tarfile.TarInfo(name=name)
-    info.size = len(data)
-    info.mtime = 0
-    info.uid = 0
-    info.gid = 0
-    info.mode = 0o644
-    tar.addfile(info, io.BytesIO(data))
-
-
-def _force_load_include_files(obj: Any, _seen: set[int] | None = None) -> None:
-    """Recursively resolve any ``IncludeFile`` instances in a YAML tree.
-
-    Nested ``!include`` returns a deferred ``IncludeFile`` that is only
-    resolved during the substitution pass. During bundle discovery we need
-    the referenced files to actually load so the ``track_yaml_loads``
-    listener fires for them.
-
-    ``IncludeFile`` instances with unresolved substitution variables in the
-    filename cannot be loaded — we skip and warn about those.
-    """
-    if _seen is None:
-        _seen = set()
-
-    if isinstance(obj, yaml_util.IncludeFile):
-        if id(obj) in _seen:
-            return
-        _seen.add(id(obj))
-        if obj.has_unresolved_expressions():
-            _LOGGER.warning(
-                "Bundle: cannot resolve !include %s (referenced from %s) "
-                "with substitutions in path",
-                obj.file,
-                obj.parent_file,
-            )
-            return
-        try:
-            loaded = obj.load()
-        except EsphomeError as err:
-            _LOGGER.warning(
-                "Bundle: failed to load !include %s (referenced from %s): %s",
-                obj.file,
-                obj.parent_file,
-                err,
-            )
-            return
-        _force_load_include_files(loaded, _seen)
-    elif isinstance(obj, dict):
-        if id(obj) in _seen:
-            return
-        _seen.add(id(obj))
-        for value in obj.values():
-            _force_load_include_files(value, _seen)
-    elif isinstance(obj, (list, tuple)):
-        if id(obj) in _seen:
-            return
-        _seen.add(id(obj))
-        for item in obj:
-            _force_load_include_files(item, _seen)
-
-
-def _resolve_include_path(include_path: Any) -> Path | None:
-    """Resolve an include path to absolute, skipping system includes."""
-    if isinstance(include_path, str) and include_path.startswith("<"):
-        return None  # System include, not a local file
-    p = Path(include_path)
-    if not p.is_absolute():
-        p = CORE.relative_config_path(p)
-    return p
-
-
-def _default_target_dir(bundle_path: Path) -> Path:
-    """Compute the default extraction directory for a bundle."""
-    name = bundle_path.name
-    if name.lower().endswith(BUNDLE_EXTENSION):
-        name = name[: -len(BUNDLE_EXTENSION)]
-    return bundle_path.parent / name
-
-
-def _restore_preserved_dirs(preserved: dict[str, Path], target_dir: Path) -> None:
-    """Move preserved build cache directories back into target_dir.
-
-    If the bundle contained entries under a preserved directory name,
-    the extracted copy is removed so the original cache always wins.
-    """
-    for dirname, src in preserved.items():
-        dst = target_dir / dirname
-        if dst.exists():
-            shutil.rmtree(dst)
-        shutil.move(str(src), str(dst))
-
-
-def prepare_bundle_for_compile(
-    bundle_path: Path,
-    target_dir: Path | None = None,
-) -> Path:
-    """Extract a bundle for compilation, preserving build caches.
-
-    Unlike extract_bundle(), this preserves .esphome/ and .pioenvs/
-    directories in the target if they already exist (for incremental builds).
-
-    Args:
-        bundle_path: Path to the .tar.gz bundle file.
-        target_dir: Directory to extract into. Must be specified for
-                     build server use.
-
-    Returns:
-        Absolute path to the extracted config YAML file.
-    """
-
-    bundle_path = bundle_path.resolve()
-    if not bundle_path.is_file():
-        raise EsphomeError(f"Bundle file not found: {bundle_path}")
-
-    if target_dir is None:
-        target_dir = _default_target_dir(bundle_path)
-
-    target_dir = target_dir.resolve()
-    target_dir.mkdir(parents=True, exist_ok=True)
-
-    preserved: dict[str, Path] = {}
-
-    # Temporarily move preserved dirs out of the way
-    staging = target_dir / _BUNDLE_STAGING_DIR
-    for dirname in _PRESERVE_DIRS:
-        src = target_dir / dirname
-        if src.is_dir():
-            dst = staging / dirname
-            dst.parent.mkdir(parents=True, exist_ok=True)
-            shutil.move(str(src), str(dst))
-            preserved[dirname] = dst
-
-    try:
-        # Clean non-preserved content and extract fresh
-        for item in target_dir.iterdir():
-            if item.name == _BUNDLE_STAGING_DIR:
-                continue
-            if item.is_dir():
-                shutil.rmtree(item)
-            else:
-                item.unlink()
-
-        config_path = extract_bundle(bundle_path, target_dir)
-    finally:
-        # Restore preserved dirs (idempotent) and clean staging
-        _restore_preserved_dirs(preserved, target_dir)
-        if staging.is_dir():
-            shutil.rmtree(staging)
-
-    return config_path

esphome/codegen.py

@@ -11,7 +11,6 @@
 from esphome.cpp_generator import (  # noqa: F401
     ArrayInitializer,
     Expression,
-    FlashStringLiteral,
     LineComment,
     LogStringLiteral,
     MockObj,
@@ -79,7 +78,6 @@ from esphome.cpp_types import (  # noqa: F401
     float_,
     global_ns,
     gpio_Flags,
-    int8,
     int16,
     int32,
     int64,
@@ -89,7 +87,6 @@ from esphome.cpp_types import (  # noqa: F401
     size_t,
     std_ns,
     std_shared_ptr,
-    std_span,
     std_string,
     std_string_ref,
     std_vector,

esphome/components/absolute_humidity/absolute_humidity.cpp

@@ -1,29 +1,22 @@
 #include "esphome/core/log.h"
 #include "absolute_humidity.h"
 
-namespace esphome::absolute_humidity {
+namespace esphome {
+namespace absolute_humidity {
 
-static const char *const TAG{"absolute_humidity.sensor"};
+static const char *const TAG = "absolute_humidity.sensor";
 
 void AbsoluteHumidityComponent::setup() {
-  this->temperature_sensor_->add_on_state_callback([this](float state) {
-    this->temperature_ = state;
-    this->enable_loop();
-  });
   ESP_LOGD(TAG, "  Added callback for temperature '%s'", this->temperature_sensor_->get_name().c_str());
-  // Get initial value
+  this->temperature_sensor_->add_on_state_callback([this](float state) { this->temperature_callback_(state); });
   if (this->temperature_sensor_->has_state()) {
-    this->temperature_ = this->temperature_sensor_->get_state();
+    this->temperature_callback_(this->temperature_sensor_->get_state());
   }
 
-  this->humidity_sensor_->add_on_state_callback([this](float state) {
-    this->humidity_ = state;
-    this->enable_loop();
-  });
   ESP_LOGD(TAG, "  Added callback for relative humidity '%s'", this->humidity_sensor_->get_name().c_str());
-  // Get initial value
+  this->humidity_sensor_->add_on_state_callback([this](float state) { this->humidity_callback_(state); });
   if (this->humidity_sensor_->has_state()) {
-    this->humidity_ = this->humidity_sensor_->get_state();
+    this->humidity_callback_(this->humidity_sensor_->get_state());
   }
 }
 
@@ -52,13 +45,17 @@ void AbsoluteHumidityComponent::dump_config() {
                 this->temperature_sensor_->get_name().c_str(), this->humidity_sensor_->get_name().c_str());
 }
 
+float AbsoluteHumidityComponent::get_setup_priority() const { return setup_priority::DATA; }
+
 void AbsoluteHumidityComponent::loop() {
-  // Only run once
-  this->disable_loop();
+  if (!this->next_update_) {
+    return;
+  }
+  this->next_update_ = false;
 
   // Ensure we have source data
-  const bool no_temperature{std::isnan(this->temperature_)};
-  const bool no_humidity{std::isnan(this->humidity_)};
+  const bool no_temperature = std::isnan(this->temperature_);
+  const bool no_humidity = std::isnan(this->humidity_);
   if (no_temperature || no_humidity) {
     if (no_temperature) {
       ESP_LOGW(TAG, "No valid state from temperature sensor!");
@@ -72,9 +69,9 @@ void AbsoluteHumidityComponent::loop() {
   }
 
   // Convert to desired units
-  const float temperature_c{this->temperature_};
-  const float temperature_k{temperature_c + 273.15f};
-  const float hr{this->humidity_ / 100.0f};
+  const float temperature_c = this->temperature_;
+  const float temperature_k = temperature_c + 273.15;
+  const float hr = this->humidity_ / 100;
 
   // Calculate saturation vapor pressure
   float es;
@@ -95,9 +92,12 @@ void AbsoluteHumidityComponent::loop() {
   }
 
   // Calculate absolute humidity
-  const float absolute_humidity{vapor_density(es, hr, temperature_k)};
+  const float absolute_humidity = vapor_density(es, hr, temperature_k);
 
-  ESP_LOGD(TAG, "Saturation vapor pressure %f kPa, absolute humidity %f g/m³", es, absolute_humidity);
+  ESP_LOGD(TAG,
+           "Saturation vapor pressure %f kPa\n"
+           "Publishing absolute humidity %f g/m³",
+           es, absolute_humidity);
 
   // Publish absolute humidity
   this->status_clear_warning();
@@ -108,16 +108,16 @@ void AbsoluteHumidityComponent::loop() {
 // More accurate than Tetens in normal meteorologic conditions
 float AbsoluteHumidityComponent::es_buck(float temperature_c) {
   float a, b, c, d;
-  if (temperature_c >= 0.0f) {
-    a = 0.61121f;
-    b = 18.678f;
-    c = 234.5f;
-    d = 257.14f;
+  if (temperature_c >= 0) {
+    a = 0.61121;
+    b = 18.678;
+    c = 234.5;
+    d = 257.14;
   } else {
-    a = 0.61115f;
-    b = 18.678f;
-    c = 233.7f;
-    d = 279.82f;
+    a = 0.61115;
+    b = 18.678;
+    c = 233.7;
+    d = 279.82;
   }
   return a * expf((b - (temperature_c / c)) * (temperature_c / (d + temperature_c)));
 }
@@ -125,14 +125,14 @@ float AbsoluteHumidityComponent::es_buck(float temperature_c) {
 // Tetens equation (https://en.wikipedia.org/wiki/Tetens_equation)
 float AbsoluteHumidityComponent::es_tetens(float temperature_c) {
   float a, b;
-  if (temperature_c >= 0.0f) {
-    a = 17.27f;
-    b = 237.3f;
+  if (temperature_c >= 0) {
+    a = 17.27;
+    b = 237.3;
   } else {
-    a = 21.875f;
-    b = 265.5f;
+    a = 21.875;
+    b = 265.5;
   }
-  return 0.61078f * expf((a * temperature_c) / (temperature_c + b));
+  return 0.61078 * expf((a * temperature_c) / (temperature_c + b));
 }
 
 // Wobus equation
@@ -151,18 +151,18 @@ float AbsoluteHumidityComponent::es_wobus(float t) {
   //
   //     Baker, Schlatter  17-MAY-1982     Original version.
 
-  constexpr float c0{+0.99999683e+00f};
-  constexpr float c1{-0.90826951e-02f};
-  constexpr float c2{+0.78736169e-04f};
-  constexpr float c3{-0.61117958e-06f};
-  constexpr float c4{+0.43884187e-08f};
-  constexpr float c5{-0.29883885e-10f};
-  constexpr float c6{+0.21874425e-12f};
-  constexpr float c7{-0.17892321e-14f};
-  constexpr float c8{+0.11112018e-16f};
-  constexpr float c9{-0.30994571e-19f};
-  const float p{c0 + t * (c1 + t * (c2 + t * (c3 + t * (c4 + t * (c5 + t * (c6 + t * (c7 + t * (c8 + t * (c9)))))))))};
-  return 0.61078f / powf(p, 8.0f);
+  const float c0 = +0.99999683e00;
+  const float c1 = -0.90826951e-02;
+  const float c2 = +0.78736169e-04;
+  const float c3 = -0.61117958e-06;
+  const float c4 = +0.43884187e-08;
+  const float c5 = -0.29883885e-10;
+  const float c6 = +0.21874425e-12;
+  const float c7 = -0.17892321e-14;
+  const float c8 = +0.11112018e-16;
+  const float c9 = -0.30994571e-19;
+  const float p = c0 + t * (c1 + t * (c2 + t * (c3 + t * (c4 + t * (c5 + t * (c6 + t * (c7 + t * (c8 + t * (c9)))))))));
+  return 0.61078 / pow(p, 8);
 }
 
 // From https://www.environmentalbiophysics.org/chalk-talk-how-to-calculate-absolute-humidity/
@@ -173,10 +173,11 @@ float AbsoluteHumidityComponent::vapor_density(float es, float hr, float ta) {
   // hr = relative humidity [0-1]
   // ta = absolute temperature (K)
 
-  const float ea{hr * es * 1000.0f};  // vapor pressure of the air (Pa)
-  const float mw{18.01528f};          // molar mass of water (g⋅mol⁻¹)
-  const float r{8.31446261815324f};   // molar gas constant (J⋅K⁻¹)
+  const float ea = hr * es * 1000;   // vapor pressure of the air (Pa)
+  const float mw = 18.01528;         // molar mass of water (g⋅mol⁻¹)
+  const float r = 8.31446261815324;  // molar gas constant (J⋅K⁻¹)
   return (ea * mw) / (r * ta);
 }
 
-}  // namespace esphome::absolute_humidity
+}  // namespace absolute_humidity
+}  // namespace esphome

esphome/components/absolute_humidity/absolute_humidity.h

@@ -3,7 +3,8 @@
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
 
-namespace esphome::absolute_humidity {
+namespace esphome {
+namespace absolute_humidity {
 
 /// Enum listing all implemented saturation vapor pressure equations.
 enum SaturationVaporPressureEquation {
@@ -15,15 +16,27 @@ enum SaturationVaporPressureEquation {
 /// This class implements calculation of absolute humidity from temperature and relative humidity.
 class AbsoluteHumidityComponent : public sensor::Sensor, public Component {
  public:
+  AbsoluteHumidityComponent() = default;
+
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { this->temperature_sensor_ = temperature_sensor; }
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { this->humidity_sensor_ = humidity_sensor; }
   void set_equation(SaturationVaporPressureEquation equation) { this->equation_ = equation; }
 
   void setup() override;
   void dump_config() override;
+  float get_setup_priority() const override;
   void loop() override;
 
  protected:
+  void temperature_callback_(float state) {
+    this->next_update_ = true;
+    this->temperature_ = state;
+  }
+  void humidity_callback_(float state) {
+    this->next_update_ = true;
+    this->humidity_ = state;
+  }
+
   /** Buck equation for saturation vapor pressure in kPa.
    *
    * @param temperature_c Air temperature in °C.
@@ -45,15 +58,19 @@ class AbsoluteHumidityComponent : public sensor::Sensor, public Component {
    * @param es Saturation vapor pressure in kPa.
    * @param hr Relative humidity 0 to 1.
    * @param ta Absolute temperature in K.
+   * @param heater_duration The duration in ms that the heater should turn on for when measuring.
    */
   static float vapor_density(float es, float hr, float ta);
 
   sensor::Sensor *temperature_sensor_{nullptr};
   sensor::Sensor *humidity_sensor_{nullptr};
 
+  bool next_update_{false};
+
   float temperature_{NAN};
   float humidity_{NAN};
   SaturationVaporPressureEquation equation_;
 };
 
-}  // namespace esphome::absolute_humidity
+}  // namespace absolute_humidity
+}  // namespace esphome

esphome/components/ac_dimmer/ac_dimmer.cpp

@@ -199,19 +199,12 @@ void AcDimmer::setup() {
   setTimer1Callback(&timer_interrupt);
 #endif
 #ifdef USE_ESP32
-  if (dimmer_timer == nullptr) {
-    dimmer_timer = timer_begin(TIMER_FREQUENCY_HZ);
-    if (dimmer_timer == nullptr) {
-      ESP_LOGE(TAG, "Failed to create GPTimer for AC dimmer");
-      this->mark_failed();
-      return;
-    }
-    timer_attach_interrupt(dimmer_timer, &AcDimmerDataStore::s_timer_intr);
-    // For ESP32, we can't use dynamic interval calculation because the timerX functions
-    // are not callable from ISR (placed in flash storage).
-    // Here we just use an interrupt firing every 50 µs.
-    timer_alarm(dimmer_timer, TIMER_INTERVAL_US, true, 0);
-  }
+  dimmer_timer = timer_begin(TIMER_FREQUENCY_HZ);
+  timer_attach_interrupt(dimmer_timer, &AcDimmerDataStore::s_timer_intr);
+  // For ESP32, we can't use dynamic interval calculation because the timerX functions
+  // are not callable from ISR (placed in flash storage).
+  // Here we just use an interrupt firing every 50 µs.
+  timer_alarm(dimmer_timer, TIMER_INTERVAL_US, true, 0);
 #endif
 }
 

esphome/components/adc/adc_sensor.h

@@ -22,8 +22,7 @@ namespace adc {
 
 #ifdef USE_ESP32
 // clang-format off
-#if ESP_IDF_VERSION_MAJOR >= 6 || \
-    (ESP_IDF_VERSION_MAJOR == 5 && \
+#if (ESP_IDF_VERSION_MAJOR == 5 && \
      ((ESP_IDF_VERSION_MINOR == 0 && ESP_IDF_VERSION_PATCH >= 5) || \
       (ESP_IDF_VERSION_MINOR == 1 && ESP_IDF_VERSION_PATCH >= 3) || \
       (ESP_IDF_VERSION_MINOR >= 2)) \
@@ -69,6 +68,11 @@ class ADCSensor : public sensor::Sensor, public PollingComponent, public voltage
   /// This method is called during the ESPHome setup process to log the configuration.
   void dump_config() override;
 
+  /// Return the setup priority for this component.
+  /// Components with higher priority are initialized earlier during setup.
+  /// @return A float representing the setup priority.
+  float get_setup_priority() const override;
+
 #ifdef USE_ZEPHYR
   /// Set the ADC channel to be used by the ADC sensor.
   /// @param channel Pointer to an adc_dt_spec structure representing the ADC channel.

esphome/components/adc/adc_sensor_common.cpp

@@ -79,5 +79,7 @@ void ADCSensor::set_sample_count(uint8_t sample_count) {
 
 void ADCSensor::set_sampling_mode(SamplingMode sampling_mode) { this->sampling_mode_ = sampling_mode; }
 
+float ADCSensor::get_setup_priority() const { return setup_priority::DATA; }
+
 }  // namespace adc
 }  // namespace esphome

esphome/components/adc/adc_sensor_esp32.cpp

@@ -2,7 +2,6 @@
 
 #include "adc_sensor.h"
 #include "esphome/core/log.h"
-#include <cinttypes>
 
 namespace esphome {
 namespace adc {
@@ -43,11 +42,11 @@ void ADCSensor::setup() {
     adc_oneshot_unit_init_cfg_t init_config = {};  // Zero initialize
     init_config.unit_id = this->adc_unit_;
     init_config.ulp_mode = ADC_ULP_MODE_DISABLE;
-#if USE_ESP32_VARIANT_ESP32C2 || USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || \
-    USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
+#if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
+    USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     init_config.clk_src = ADC_DIGI_CLK_SRC_DEFAULT;
-#endif  // USE_ESP32_VARIANT_ESP32C2 || USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 ||
-        // USE_ESP32_VARIANT_ESP32C6 || USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
+#endif  // USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 ||
+        // USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2
     esp_err_t err = adc_oneshot_new_unit(&init_config, &ADCSensor::shared_adc_handles[this->adc_unit_]);
     if (err != ESP_OK) {
       ESP_LOGE(TAG, "Error initializing %s: %d", LOG_STR_ARG(adc_unit_to_str(this->adc_unit_)), err);
@@ -77,7 +76,7 @@ void ADCSensor::setup() {
 
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
     USE_ESP32_VARIANT_ESP32C61 || USE_ESP32_VARIANT_ESP32H2 || USE_ESP32_VARIANT_ESP32P4 || USE_ESP32_VARIANT_ESP32S3
-    // RISC-V variants (except C2) and S3 use curve fitting calibration
+    // RISC-V variants and S3 use curve fitting calibration
     adc_cali_curve_fitting_config_t cali_config = {};  // Zero initialize first
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0)
     cali_config.chan = this->channel_;
@@ -95,14 +94,14 @@ void ADCSensor::setup() {
       ESP_LOGW(TAG, "Curve fitting calibration failed with error %d, will use uncalibrated readings", err);
       this->setup_flags_.calibration_complete = false;
     }
-#else  // ESP32, ESP32-S2, and ESP32-C2 use line fitting calibration
+#else  // Other ESP32 variants use line fitting calibration
     adc_cali_line_fitting_config_t cali_config = {
       .unit_id = this->adc_unit_,
       .atten = this->attenuation_,
       .bitwidth = ADC_BITWIDTH_DEFAULT,
-#if !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
+#if !defined(USE_ESP32_VARIANT_ESP32S2)
       .default_vref = 1100,  // Default reference voltage in mV
-#endif  // !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
+#endif  // !defined(USE_ESP32_VARIANT_ESP32S2)
     };
     err = adc_cali_create_scheme_line_fitting(&cali_config, &handle);
     if (err == ESP_OK) {
@@ -113,7 +112,7 @@ void ADCSensor::setup() {
       ESP_LOGW(TAG, "Line fitting calibration failed with error %d, will use uncalibrated readings", err);
       this->setup_flags_.calibration_complete = false;
     }
-#endif  // ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
+#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
   }
 
   this->setup_flags_.init_complete = true;
@@ -190,7 +189,7 @@ float ADCSensor::sample_fixed_attenuation_() {
         adc_cali_delete_scheme_curve_fitting(this->calibration_handle_);
 #else   // Other ESP32 variants use line fitting calibration
         adc_cali_delete_scheme_line_fitting(this->calibration_handle_);
-#endif  // ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
+#endif  // USE_ESP32_VARIANT_ESP32C3 || ESP32C5 || ESP32C6 || ESP32C61 || ESP32H2 || ESP32P4 || ESP32S3
         this->calibration_handle_ = nullptr;
       }
     }
@@ -248,7 +247,7 @@ float ADCSensor::sample_autorange_() {
       .unit_id = this->adc_unit_,
       .atten = atten,
       .bitwidth = ADC_BITWIDTH_DEFAULT,
-#if !defined(USE_ESP32_VARIANT_ESP32S2) && !defined(USE_ESP32_VARIANT_ESP32C2)
+#if !defined(USE_ESP32_VARIANT_ESP32S2)
       .default_vref = 1100,
 #endif
     };
@@ -347,8 +346,7 @@ float ADCSensor::sample_autorange_() {
   ESP_LOGVV(TAG, "Autorange summary:");
   ESP_LOGVV(TAG, "  Raw readings: 12db=%d, 6db=%d, 2.5db=%d, 0db=%d", raw12, raw6, raw2, raw0);
   ESP_LOGVV(TAG, "  Voltages: 12db=%.6f, 6db=%.6f, 2.5db=%.6f, 0db=%.6f", mv12, mv6, mv2, mv0);
-  ESP_LOGVV(TAG, "  Coefficients: c12=%" PRIu32 ", c6=%" PRIu32 ", c2=%" PRIu32 ", c0=%" PRIu32 ", sum=%" PRIu32, c12,
-            c6, c2, c0, csum);
+  ESP_LOGVV(TAG, "  Coefficients: c12=%u, c6=%u, c2=%u, c0=%u, sum=%u", c12, c6, c2, c0, csum);
 
   if (csum == 0) {
     ESP_LOGE(TAG, "Invalid weight sum in autorange calculation");
@@ -356,10 +354,8 @@ float ADCSensor::sample_autorange_() {
   }
 
   const float final_result = (mv12 * c12 + mv6 * c6 + mv2 * c2 + mv0 * c0) / csum;
-  ESP_LOGV(TAG,
-           "Autorange final: (%.6f*%" PRIu32 " + %.6f*%" PRIu32 " + %.6f*%" PRIu32 " + %.6f*%" PRIu32 ")/%" PRIu32
-           " = %.6fV",
-           mv12, c12, mv6, c6, mv2, c2, mv0, c0, csum, final_result);
+  ESP_LOGV(TAG, "Autorange final: (%.6f*%u + %.6f*%u + %.6f*%u + %.6f*%u)/%u = %.6fV", mv12, c12, mv6, c6, mv2, c2, mv0,
+           c0, csum, final_result);
 
   return final_result;
 }

esphome/components/adc/adc_sensor_rp2040.cpp

@@ -8,13 +8,6 @@
 #endif  // CYW43_USES_VSYS_PIN
 #include <hardware/adc.h>
 
-// PICO_VSYS_PIN is defined in pico-sdk board headers (e.g. boards/pico2.h),
-// but the Arduino framework's config_autogen.h includes a generic board header
-// that doesn't define it. Provide the standard value (pin 29) as a fallback.
-#ifndef PICO_VSYS_PIN
-#define PICO_VSYS_PIN 29  // NOLINT(cppcoreguidelines-macro-usage)
-#endif
-
 namespace esphome {
 namespace adc {
 

esphome/components/adc/sensor.py

@@ -2,11 +2,7 @@ import logging
 
 import esphome.codegen as cg
 from esphome.components import sensor, voltage_sampler
-from esphome.components.esp32 import (
-    get_esp32_variant,
-    include_builtin_idf_component,
-    require_adc_oneshot_iram,
-)
+from esphome.components.esp32 import get_esp32_variant
 from esphome.components.nrf52.const import AIN_TO_GPIO, EXTRA_ADC
 from esphome.components.zephyr import (
     zephyr_add_overlay,
@@ -28,7 +24,6 @@ from esphome.const import (
     PlatformFramework,
 )
 from esphome.core import CORE
-from esphome.types import ConfigType
 
 from . import (
     ATTENUATION_MODES,
@@ -70,13 +65,6 @@ def validate_config(config):
     return config
 
 
-def _require_adc_iram(config: ConfigType) -> ConfigType:
-    """Register ADC oneshot IRAM requirement during config validation."""
-    if CORE.is_esp32:
-        require_adc_oneshot_iram()
-    return config
-
-
 ADCSensor = adc_ns.class_(
     "ADCSensor", sensor.Sensor, cg.PollingComponent, voltage_sampler.VoltageSampler
 )
@@ -107,7 +95,6 @@ CONFIG_SCHEMA = cv.All(
     )
     .extend(cv.polling_component_schema("60s")),
     validate_config,
-    _require_adc_iram,
 )
 
 CONF_ADC_CHANNEL_ID = "adc_channel_id"
@@ -131,9 +118,6 @@ async def to_code(config):
     cg.add(var.set_sampling_mode(config[CONF_SAMPLING_MODE]))
 
     if CORE.is_esp32:
-        # Re-enable ESP-IDF's ADC driver (excluded by default to save compile time)
-        include_builtin_idf_component("esp_adc")
-
         if attenuation := config.get(CONF_ATTENUATION):
             if attenuation == "auto":
                 cg.add(var.set_autorange(cg.global_ns.true))

esphome/components/adc128s102/sensor/adc128s102_sensor.cpp

@@ -9,6 +9,8 @@ static const char *const TAG = "adc128s102.sensor";
 
 ADC128S102Sensor::ADC128S102Sensor(uint8_t channel) : channel_(channel) {}
 
+float ADC128S102Sensor::get_setup_priority() const { return setup_priority::DATA; }
+
 void ADC128S102Sensor::dump_config() {
   LOG_SENSOR("", "ADC128S102 Sensor", this);
   ESP_LOGCONFIG(TAG, "  Pin: %u", this->channel_);

esphome/components/adc128s102/sensor/adc128s102_sensor.h

@@ -19,6 +19,7 @@ class ADC128S102Sensor : public PollingComponent,
 
   void update() override;
   void dump_config() override;
+  float get_setup_priority() const override;
   float sample() override;
 
  protected:

esphome/components/addressable_light/addressable_light_display.cpp

@@ -58,10 +58,7 @@ void HOT AddressableLightDisplay::draw_absolute_pixel_internal(int x, int y, Col
 
   if (this->pixel_mapper_f_.has_value()) {
     // Params are passed by reference, so they may be modified in call.
-    int index = (*this->pixel_mapper_f_)(x, y);
-    if (index < 0 || static_cast<size_t>(index) >= this->addressable_light_buffer_.size())
-      return;
-    this->addressable_light_buffer_[index] = color;
+    this->addressable_light_buffer_[(*this->pixel_mapper_f_)(x, y)] = color;
   } else {
     this->addressable_light_buffer_[y * this->get_width_internal() + x] = color;
   }

esphome/components/addressable_light/addressable_light_display.h

@@ -33,7 +33,7 @@ class AddressableLightDisplay : public display::DisplayBuffer {
         // - Save the current effect index.
         this->last_effect_index_ = light_state_->get_current_effect_index();
         // - Disable any current effect.
-        light_state_->make_call().set_effect(uint32_t{0}).perform();
+        light_state_->make_call().set_effect(0).perform();
       }
     }
     enabled_ = enabled;

esphome/components/ade7880/ade7880.cpp

@@ -121,7 +121,7 @@ void ADE7880::update() {
     this->update_sensor_from_s32_register16_(chan->forward_active_energy, AFWATTHR, [&chan](float val) {
       return chan->forward_active_energy_total += val / 14400.0f;
     });
-    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, ARWATTHR, [&chan](float val) {
+    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, AFWATTHR, [&chan](float val) {
       return chan->reverse_active_energy_total += val / 14400.0f;
     });
   }
@@ -137,7 +137,7 @@ void ADE7880::update() {
     this->update_sensor_from_s32_register16_(chan->forward_active_energy, BFWATTHR, [&chan](float val) {
       return chan->forward_active_energy_total += val / 14400.0f;
     });
-    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, BRWATTHR, [&chan](float val) {
+    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, BFWATTHR, [&chan](float val) {
       return chan->reverse_active_energy_total += val / 14400.0f;
     });
   }
@@ -153,7 +153,7 @@ void ADE7880::update() {
     this->update_sensor_from_s32_register16_(chan->forward_active_energy, CFWATTHR, [&chan](float val) {
       return chan->forward_active_energy_total += val / 14400.0f;
     });
-    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, CRWATTHR, [&chan](float val) {
+    this->update_sensor_from_s32_register16_(chan->reverse_active_energy, CFWATTHR, [&chan](float val) {
       return chan->reverse_active_energy_total += val / 14400.0f;
     });
   }

esphome/components/ade7880/ade7880_registers.h

@@ -85,9 +85,6 @@ constexpr uint16_t CWATTHR = 0xE402;
 constexpr uint16_t AFWATTHR = 0xE403;
 constexpr uint16_t BFWATTHR = 0xE404;
 constexpr uint16_t CFWATTHR = 0xE405;
-constexpr uint16_t ARWATTHR = 0xE406;
-constexpr uint16_t BRWATTHR = 0xE407;
-constexpr uint16_t CRWATTHR = 0xE408;
 constexpr uint16_t AFVARHR = 0xE409;
 constexpr uint16_t BFVARHR = 0xE40A;
 constexpr uint16_t CFVARHR = 0xE40B;

esphome/components/ade7953_base/ade7953_base.cpp

@@ -8,9 +8,6 @@ namespace ade7953_base {
 
 static const char *const TAG = "ade7953";
 
-constexpr uint16_t CONFIG_DEFAULT = 0x8004u;
-constexpr uint16_t CONFIG_LOCK_BIT = 0x8000u;
-
 static const float ADE_POWER_FACTOR = 154.0f;
 static const float ADE_WATTSEC_POWER_FACTOR = ADE_POWER_FACTOR * ADE_POWER_FACTOR / 3600;
 
@@ -21,12 +18,7 @@ void ADE7953::setup() {
 
   // The chip might take up to 100ms to initialise
   this->set_timeout(100, [this]() {
-    // Lock communication interface (SPI or I2C)
-    uint16_t config_v = CONFIG_DEFAULT;
-    this->ade_read_16(CONFIG_16, &config_v);
-    config_v &= static_cast<uint16_t>(~CONFIG_LOCK_BIT);  // Clear the lock bit
-    this->ade_write_16(CONFIG_16, config_v);
-    // Configure optimum settings according to datasheet
+    // this->ade_write_8(0x0010, 0x04);
     this->ade_write_8(0x00FE, 0xAD);
     this->ade_write_16(0x0120, 0x0030);
     // Set gains

esphome/components/ade7953_base/ade7953_base.h

@@ -9,35 +9,31 @@
 namespace esphome {
 namespace ade7953_base {
 
-static constexpr uint8_t PGA_V_8 =
+static const uint8_t PGA_V_8 =
     0x007;  // PGA_V,  (R/W) Default: 0x00, Unsigned, Voltage channel gain configuration (Bits[2:0])
-static constexpr uint8_t PGA_IA_8 =
+static const uint8_t PGA_IA_8 =
     0x008;  // PGA_IA, (R/W) Default: 0x00, Unsigned, Current Channel A gain configuration (Bits[2:0])
-static constexpr uint8_t PGA_IB_8 =
+static const uint8_t PGA_IB_8 =
     0x009;  // PGA_IB, (R/W) Default: 0x00, Unsigned, Current Channel B gain configuration (Bits[2:0])
 
-static constexpr uint16_t CONFIG_16 = 0x102;  // CONFIG, (R/W) Default: 0x8004, Unsigned, Configuration register
-
-static constexpr uint16_t AIGAIN_32 =
+static const uint32_t AIGAIN_32 =
     0x380;  // AIGAIN, (R/W)   Default: 0x400000, Unsigned,Current channel gain (Current Channel A)(32 bit)
-static constexpr uint16_t AVGAIN_32 =
-    0x381;  // AVGAIN, (R/W)   Default: 0x400000, Unsigned,Voltage channel gain(32 bit)
-static constexpr uint16_t AWGAIN_32 =
+static const uint32_t AVGAIN_32 = 0x381;  // AVGAIN, (R/W)   Default: 0x400000, Unsigned,Voltage channel gain(32 bit)
+static const uint32_t AWGAIN_32 =
     0x382;  // AWGAIN, (R/W)   Default: 0x400000, Unsigned,Active power gain (Current Channel A)(32 bit)
-static constexpr uint16_t AVARGAIN_32 =
+static const uint32_t AVARGAIN_32 =
     0x383;  // AVARGAIN, (R/W) Default: 0x400000, Unsigned, Reactive power gain (Current Channel A)(32 bit)
-static constexpr uint16_t AVAGAIN_32 =
+static const uint32_t AVAGAIN_32 =
     0x384;  // AVAGAIN, (R/W)  Default: 0x400000, Unsigned,Apparent power gain (Current Channel A)(32 bit)
 
-static constexpr uint16_t BIGAIN_32 =
+static const uint32_t BIGAIN_32 =
     0x38C;  // BIGAIN, (R/W)   Default: 0x400000, Unsigned,Current channel gain (Current Channel B)(32 bit)
-static constexpr uint16_t BVGAIN_32 =
-    0x38D;  // BVGAIN, (R/W)   Default: 0x400000, Unsigned,Voltage channel gain(32 bit)
-static constexpr uint16_t BWGAIN_32 =
+static const uint32_t BVGAIN_32 = 0x38D;  // BVGAIN, (R/W)   Default: 0x400000, Unsigned,Voltage channel gain(32 bit)
+static const uint32_t BWGAIN_32 =
     0x38E;  // BWGAIN, (R/W)   Default: 0x400000, Unsigned,Active power gain (Current Channel B)(32 bit)
-static constexpr uint16_t BVARGAIN_32 =
+static const uint32_t BVARGAIN_32 =
     0x38F;  // BVARGAIN, (R/W) Default: 0x400000, Unsigned, Reactive power gain (Current Channel B)(32 bit)
-static constexpr uint16_t BVAGAIN_32 =
+static const uint32_t BVAGAIN_32 =
     0x390;  // BVAGAIN, (R/W)  Default: 0x400000, Unsigned,Apparent power gain (Current Channel B)(32 bit)
 
 class ADE7953 : public PollingComponent, public sensor::Sensor {

esphome/components/ade7953_spi/ade7953_spi.cpp

@@ -7,9 +7,6 @@ namespace ade7953_spi {
 
 static const char *const TAG = "ade7953";
 
-// Datasheet requires at least 1.2µs after clearing CONFIG LOCK_BIT before raising CS
-constexpr uint8_t CONFIG_LOCK_SETTLE_US = 2;
-
 void AdE7953Spi::setup() {
   this->spi_setup();
   ade7953_base::ADE7953::setup();
@@ -35,9 +32,6 @@ bool AdE7953Spi::ade_write_16(uint16_t reg, uint16_t value) {
   this->write_byte16(reg);
   this->transfer_byte(0);
   this->write_byte16(value);
-  if (reg == ade7953_base::CONFIG_16) {
-    delayMicroseconds(CONFIG_LOCK_SETTLE_US);
-  }
   this->disable();
   return false;
 }

esphome/components/ade7953_spi/ade7953_spi.h

@@ -12,7 +12,7 @@ namespace esphome {
 namespace ade7953_spi {
 
 class AdE7953Spi : public ade7953_base::ADE7953,
-                   public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_HIGH, spi::CLOCK_PHASE_TRAILING,
+                   public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_HIGH, spi::CLOCK_PHASE_LEADING,
                                          spi::DATA_RATE_1MHZ> {
  public:
   void setup() override;

esphome/components/ads1115/ads1115.cpp

@@ -173,8 +173,19 @@ float ADS1115Component::request_measurement(ADS1115Multiplexer multiplexer, ADS1
   }
 
   if (resolution == ADS1015_12_BITS) {
-    // ADS1015 returns 12-bit value left-justified in 16 bits; shift right and sign-extend
-    raw_conversion = static_cast<uint16_t>(static_cast<int16_t>(raw_conversion) >> (16 - ADS1015_12_BITS));
+    bool negative = (raw_conversion >> 15) == 1;
+
+    // shift raw_conversion as it's only 12-bits, left justified
+    raw_conversion = raw_conversion >> (16 - ADS1015_12_BITS);
+
+    // check if number was negative in order to keep the sign
+    if (negative) {
+      // the number was negative
+      // 1) set the negative bit back
+      raw_conversion |= 0x8000;
+      // 2) reset the former (shifted) negative bit
+      raw_conversion &= 0xF7FF;
+    }
   }
 
   auto signed_conversion = static_cast<int16_t>(raw_conversion);

esphome/components/ads1118/__init__.py

@@ -12,15 +12,11 @@ CONF_ADS1118_ID = "ads1118_id"
 ads1118_ns = cg.esphome_ns.namespace("ads1118")
 ADS1118 = ads1118_ns.class_("ADS1118", cg.Component, spi.SPIDevice)
 
-CONFIG_SCHEMA = (
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.declare_id(ADS1118),
-        }
-    )
-    .extend(spi.spi_device_schema(cs_pin_required=True))
-    .extend(cv.COMPONENT_SCHEMA)
-)
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.declare_id(ADS1118),
+    }
+).extend(spi.spi_device_schema(cs_pin_required=True))
 
 
 async def to_code(config):

esphome/components/ags10/sensor.py

@@ -35,7 +35,7 @@ CONFIG_SCHEMA = (
     cv.Schema(
         {
             cv.GenerateID(): cv.declare_id(AGS10Component),
-            cv.Required(CONF_TVOC): sensor.sensor_schema(
+            cv.Optional(CONF_TVOC): sensor.sensor_schema(
                 unit_of_measurement=UNIT_PARTS_PER_BILLION,
                 icon=ICON_RADIATOR,
                 accuracy_decimals=0,
@@ -92,12 +92,11 @@ AGS10_NEW_I2C_ADDRESS_SCHEMA = cv.maybe_simple_value(
     "ags10.new_i2c_address",
     AGS10NewI2cAddressAction,
     AGS10_NEW_I2C_ADDRESS_SCHEMA,
-    synchronous=True,
 )
 async def ags10newi2caddress_to_code(config, action_id, template_arg, args):
     var = cg.new_Pvariable(action_id, template_arg)
     await cg.register_parented(var, config[CONF_ID])
-    address = await cg.templatable(config[CONF_ADDRESS], args, cg.uint8)
+    address = await cg.templatable(config[CONF_ADDRESS], args, int)
     cg.add(var.set_new_address(address))
     return var
 
@@ -112,9 +111,7 @@ AGS10_SET_ZERO_POINT_ACTION_MODE = {
 AGS10_SET_ZERO_POINT_SCHEMA = cv.Schema(
     {
         cv.GenerateID(): cv.use_id(AGS10Component),
-        cv.Required(CONF_MODE): cv.templatable(
-            cv.enum(AGS10_SET_ZERO_POINT_ACTION_MODE, upper=True)
-        ),
+        cv.Required(CONF_MODE): cv.enum(AGS10_SET_ZERO_POINT_ACTION_MODE, upper=True),
         cv.Optional(CONF_VALUE, default=0xFFFF): cv.templatable(cv.uint16_t),
     },
 )
@@ -124,15 +121,12 @@ AGS10_SET_ZERO_POINT_SCHEMA = cv.Schema(
     "ags10.set_zero_point",
     AGS10SetZeroPointAction,
     AGS10_SET_ZERO_POINT_SCHEMA,
-    synchronous=True,
 )
 async def ags10setzeropoint_to_code(config, action_id, template_arg, args):
     var = cg.new_Pvariable(action_id, template_arg)
     await cg.register_parented(var, config[CONF_ID])
-    mode = await cg.templatable(
-        config.get(CONF_MODE), args, AGS10SetZeroPointActionMode
-    )
+    mode = await cg.templatable(config.get(CONF_MODE), args, enumerate)
     cg.add(var.set_mode(mode))
-    value = await cg.templatable(config[CONF_VALUE], args, cg.uint16)
+    value = await cg.templatable(config[CONF_VALUE], args, int)
     cg.add(var.set_value(value))
     return var

esphome/components/aht10/aht10.cpp

@@ -150,6 +150,8 @@ void AHT10Component::update() {
   this->restart_read_();
 }
 
+float AHT10Component::get_setup_priority() const { return setup_priority::DATA; }
+
 void AHT10Component::dump_config() {
   ESP_LOGCONFIG(TAG, "AHT10:");
   LOG_I2C_DEVICE(this);

esphome/components/aht10/aht10.h

@@ -16,6 +16,7 @@ class AHT10Component : public PollingComponent, public i2c::I2CDevice {
   void setup() override;
   void update() override;
   void dump_config() override;
+  float get_setup_priority() const override;
   void set_variant(AHT10Variant variant) { this->variant_ = variant; }
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }

esphome/components/aic3204/audio_dac.py

@@ -34,16 +34,13 @@ SET_AUTO_MUTE_ACTION_SCHEMA = cv.maybe_simple_value(
 
 
 @automation.register_action(
-    "aic3204.set_auto_mute_mode",
-    SetAutoMuteAction,
-    SET_AUTO_MUTE_ACTION_SCHEMA,
-    synchronous=True,
+    "aic3204.set_auto_mute_mode", SetAutoMuteAction, SET_AUTO_MUTE_ACTION_SCHEMA
 )
 async def aic3204_set_volume_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, paren)
 
-    template_ = await cg.templatable(config.get(CONF_MODE), args, cg.uint8)
+    template_ = await cg.templatable(config.get(CONF_MODE), args, int)
     cg.add(var.set_auto_mute_mode(template_))
 
     return var

esphome/components/alarm_control_panel/__init__.py

@@ -10,6 +10,7 @@ from esphome.const import (
     CONF_ID,
     CONF_MQTT_ID,
     CONF_ON_STATE,
+    CONF_TRIGGER_ID,
     CONF_WEB_SERVER,
 )
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
@@ -33,9 +34,39 @@ CONF_ON_READY = "on_ready"
 alarm_control_panel_ns = cg.esphome_ns.namespace("alarm_control_panel")
 AlarmControlPanel = alarm_control_panel_ns.class_("AlarmControlPanel", cg.EntityBase)
 
-StateAnyForwarder = alarm_control_panel_ns.class_("StateAnyForwarder")
-StateEnterForwarder = alarm_control_panel_ns.class_("StateEnterForwarder")
-AlarmControlPanelState = alarm_control_panel_ns.enum("AlarmControlPanelState")
+StateTrigger = alarm_control_panel_ns.class_(
+    "StateTrigger", automation.Trigger.template()
+)
+TriggeredTrigger = alarm_control_panel_ns.class_(
+    "TriggeredTrigger", automation.Trigger.template()
+)
+ClearedTrigger = alarm_control_panel_ns.class_(
+    "ClearedTrigger", automation.Trigger.template()
+)
+ArmingTrigger = alarm_control_panel_ns.class_(
+    "ArmingTrigger", automation.Trigger.template()
+)
+PendingTrigger = alarm_control_panel_ns.class_(
+    "PendingTrigger", automation.Trigger.template()
+)
+ArmedHomeTrigger = alarm_control_panel_ns.class_(
+    "ArmedHomeTrigger", automation.Trigger.template()
+)
+ArmedNightTrigger = alarm_control_panel_ns.class_(
+    "ArmedNightTrigger", automation.Trigger.template()
+)
+ArmedAwayTrigger = alarm_control_panel_ns.class_(
+    "ArmedAwayTrigger", automation.Trigger.template()
+)
+DisarmedTrigger = alarm_control_panel_ns.class_(
+    "DisarmedTrigger", automation.Trigger.template()
+)
+ChimeTrigger = alarm_control_panel_ns.class_(
+    "ChimeTrigger", automation.Trigger.template()
+)
+ReadyTrigger = alarm_control_panel_ns.class_(
+    "ReadyTrigger", automation.Trigger.template()
+)
 
 ArmAwayAction = alarm_control_panel_ns.class_("ArmAwayAction", automation.Action)
 ArmHomeAction = alarm_control_panel_ns.class_("ArmHomeAction", automation.Action)
@@ -58,17 +89,61 @@ _ALARM_CONTROL_PANEL_SCHEMA = (
             cv.OnlyWith(CONF_MQTT_ID, "mqtt"): cv.declare_id(
                 mqtt.MQTTAlarmControlPanelComponent
             ),
-            cv.Optional(CONF_ON_STATE): automation.validate_automation({}),
-            cv.Optional(CONF_ON_TRIGGERED): automation.validate_automation({}),
-            cv.Optional(CONF_ON_ARMING): automation.validate_automation({}),
-            cv.Optional(CONF_ON_PENDING): automation.validate_automation({}),
-            cv.Optional(CONF_ON_ARMED_HOME): automation.validate_automation({}),
-            cv.Optional(CONF_ON_ARMED_NIGHT): automation.validate_automation({}),
-            cv.Optional(CONF_ON_ARMED_AWAY): automation.validate_automation({}),
-            cv.Optional(CONF_ON_DISARMED): automation.validate_automation({}),
-            cv.Optional(CONF_ON_CLEARED): automation.validate_automation({}),
-            cv.Optional(CONF_ON_CHIME): automation.validate_automation({}),
-            cv.Optional(CONF_ON_READY): automation.validate_automation({}),
+            cv.Optional(CONF_ON_STATE): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(StateTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_TRIGGERED): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(TriggeredTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_ARMING): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ArmingTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_PENDING): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(PendingTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_ARMED_HOME): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ArmedHomeTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_ARMED_NIGHT): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ArmedNightTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_ARMED_AWAY): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ArmedAwayTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_DISARMED): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(DisarmedTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_CLEARED): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ClearedTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_CHIME): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ChimeTrigger),
+                }
+            ),
+            cv.Optional(CONF_ON_READY): automation.validate_automation(
+                {
+                    cv.GenerateID(CONF_TRIGGER_ID): cv.declare_id(ReadyTrigger),
+                }
+            ),
         }
     )
 )
@@ -111,66 +186,41 @@ ALARM_CONTROL_PANEL_CONDITION_SCHEMA = maybe_simple_id(
 )
 
 
-_CALLBACK_AUTOMATIONS = (
-    automation.CallbackAutomation(
-        CONF_ON_STATE, "add_on_state_callback", forwarder=StateAnyForwarder
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_TRIGGERED,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_TRIGGERED
-        ),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_ARMING,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(AlarmControlPanelState.ACP_STATE_ARMING),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_PENDING,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_PENDING
-        ),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_ARMED_HOME,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_ARMED_HOME
-        ),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_ARMED_NIGHT,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_ARMED_NIGHT
-        ),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_ARMED_AWAY,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_ARMED_AWAY
-        ),
-    ),
-    automation.CallbackAutomation(
-        CONF_ON_DISARMED,
-        "add_on_state_callback",
-        forwarder=StateEnterForwarder.template(
-            AlarmControlPanelState.ACP_STATE_DISARMED
-        ),
-    ),
-    automation.CallbackAutomation(CONF_ON_CLEARED, "add_on_cleared_callback"),
-    automation.CallbackAutomation(CONF_ON_CHIME, "add_on_chime_callback"),
-    automation.CallbackAutomation(CONF_ON_READY, "add_on_ready_callback"),
-)
-
-
-@setup_entity("alarm_control_panel")
 async def setup_alarm_control_panel_core_(var, config):
-    await automation.build_callback_automations(var, config, _CALLBACK_AUTOMATIONS)
+    await setup_entity(var, config, "alarm_control_panel")
+    for conf in config.get(CONF_ON_STATE, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_TRIGGERED, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_ARMING, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_PENDING, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_ARMED_HOME, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_ARMED_NIGHT, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_ARMED_AWAY, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_DISARMED, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_CLEARED, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_CHIME, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
+    for conf in config.get(CONF_ON_READY, []):
+        trigger = cg.new_Pvariable(conf[CONF_TRIGGER_ID], var)
+        await automation.build_automation(trigger, [], conf)
     if web_server_config := config.get(CONF_WEB_SERVER):
         await web_server.add_entity_config(var, web_server_config)
     if mqtt_id := config.get(CONF_MQTT_ID):
@@ -193,10 +243,7 @@ async def new_alarm_control_panel(config, *args):
 
 
 @automation.register_action(
-    "alarm_control_panel.arm_away",
-    ArmAwayAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.arm_away", ArmAwayAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_arm_away_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -208,10 +255,7 @@ async def alarm_action_arm_away_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.arm_home",
-    ArmHomeAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.arm_home", ArmHomeAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_arm_home_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -223,10 +267,7 @@ async def alarm_action_arm_home_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.arm_night",
-    ArmNightAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.arm_night", ArmNightAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_arm_night_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -238,10 +279,7 @@ async def alarm_action_arm_night_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.disarm",
-    DisarmAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.disarm", DisarmAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_disarm_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -253,10 +291,7 @@ async def alarm_action_disarm_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.pending",
-    PendingAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.pending", PendingAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_pending_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -264,10 +299,7 @@ async def alarm_action_pending_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.triggered",
-    TriggeredAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.triggered", TriggeredAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_trigger_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -275,10 +307,7 @@ async def alarm_action_trigger_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.chime",
-    ChimeAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.chime", ChimeAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 async def alarm_action_chime_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
@@ -286,10 +315,7 @@ async def alarm_action_chime_to_code(config, action_id, template_arg, args):
 
 
 @automation.register_action(
-    "alarm_control_panel.ready",
-    ReadyAction,
-    ALARM_CONTROL_PANEL_ACTION_SCHEMA,
-    synchronous=True,
+    "alarm_control_panel.ready", ReadyAction, ALARM_CONTROL_PANEL_ACTION_SCHEMA
 )
 @automation.register_condition(
     "alarm_control_panel.ready",

esphome/components/alarm_control_panel/alarm_control_panel.cpp

@@ -31,12 +31,12 @@ void AlarmControlPanel::publish_state(AlarmControlPanelState state) {
   this->last_update_ = millis();
   if (state != this->current_state_) {
     auto prev_state = this->current_state_;
-    ESP_LOGV(TAG, "'%s' >> %s (was %s)", this->get_name().c_str(),
+    ESP_LOGD(TAG, "'%s' >> %s (was %s)", this->get_name().c_str(),
              LOG_STR_ARG(alarm_control_panel_state_to_string(state)),
              LOG_STR_ARG(alarm_control_panel_state_to_string(prev_state)));
     this->current_state_ = state;
-    // Single state callback - listeners receive the new state as an argument
-    this->state_callback_.call(state);
+    // Single state callback - triggers check get_state() for specific states
+    this->state_callback_.call();
 #if defined(USE_ALARM_CONTROL_PANEL) && defined(USE_CONTROLLER_REGISTRY)
     ControllerRegistry::notify_alarm_control_panel_update(this);
 #endif
@@ -51,6 +51,22 @@ void AlarmControlPanel::publish_state(AlarmControlPanelState state) {
   }
 }
 
+void AlarmControlPanel::add_on_state_callback(std::function<void()> &&callback) {
+  this->state_callback_.add(std::move(callback));
+}
+
+void AlarmControlPanel::add_on_cleared_callback(std::function<void()> &&callback) {
+  this->cleared_callback_.add(std::move(callback));
+}
+
+void AlarmControlPanel::add_on_chime_callback(std::function<void()> &&callback) {
+  this->chime_callback_.add(std::move(callback));
+}
+
+void AlarmControlPanel::add_on_ready_callback(std::function<void()> &&callback) {
+  this->ready_callback_.add(std::move(callback));
+}
+
 void AlarmControlPanel::arm_with_code_(AlarmControlPanelCall &(AlarmControlPanelCall::*arm_method)(),
                                        const char *code) {
   auto call = this->make_call();

esphome/components/alarm_control_panel/alarm_control_panel.h

@@ -37,24 +37,25 @@ class AlarmControlPanel : public EntityBase {
    *
    * @param callback The callback function
    */
-  template<typename F> void add_on_state_callback(F &&callback) {
-    this->state_callback_.add(std::forward<F>(callback));
-  }
+  void add_on_state_callback(std::function<void()> &&callback);
 
-  /** Add a callback for when the state of the alarm_control_panel clears from triggered. */
-  template<typename F> void add_on_cleared_callback(F &&callback) {
-    this->cleared_callback_.add(std::forward<F>(callback));
-  }
+  /** Add a callback for when the state of the alarm_control_panel clears from triggered
+   *
+   * @param callback The callback function
+   */
+  void add_on_cleared_callback(std::function<void()> &&callback);
 
-  /** Add a callback for when a chime zone goes from closed to open. */
-  template<typename F> void add_on_chime_callback(F &&callback) {
-    this->chime_callback_.add(std::forward<F>(callback));
-  }
+  /** Add a callback for when a chime zone goes from closed to open
+   *
+   * @param callback The callback function
+   */
+  void add_on_chime_callback(std::function<void()> &&callback);
 
-  /** Add a callback for when a ready state changes. */
-  template<typename F> void add_on_ready_callback(F &&callback) {
-    this->ready_callback_.add(std::forward<F>(callback));
-  }
+  /** Add a callback for when a ready state changes
+   *
+   * @param callback The callback function
+   */
+  void add_on_ready_callback(std::function<void()> &&callback);
 
   /** A numeric representation of the supported features as per HomeAssistant
    *
@@ -145,8 +146,8 @@ class AlarmControlPanel : public EntityBase {
   uint32_t last_update_;
   // the call control function
   virtual void control(const AlarmControlPanelCall &call) = 0;
-  // state callback - passes the new state to listeners
-  LazyCallbackManager<void(AlarmControlPanelState)> state_callback_{};
+  // state callback - triggers check get_state() for specific state
+  LazyCallbackManager<void()> state_callback_{};
   // clear callback - fires when leaving TRIGGERED state
   LazyCallbackManager<void()> cleared_callback_{};
   // chime callback

esphome/components/alarm_control_panel/alarm_control_panel_call.cpp

@@ -12,14 +12,7 @@ AlarmControlPanelCall::AlarmControlPanelCall(AlarmControlPanel *parent) : parent
 
 AlarmControlPanelCall &AlarmControlPanelCall::set_code(const char *code) {
   if (code != nullptr) {
-    return this->set_code(code, strlen(code));
-  }
-  return *this;
-}
-
-AlarmControlPanelCall &AlarmControlPanelCall::set_code(const char *code, size_t len) {
-  if (code != nullptr) {
-    this->code_ = std::string(code, len);
+    this->code_ = std::string(code);
   }
   return *this;
 }

esphome/components/alarm_control_panel/alarm_control_panel_call.h

@@ -15,8 +15,7 @@ class AlarmControlPanelCall {
   AlarmControlPanelCall(AlarmControlPanel *parent);
 
   AlarmControlPanelCall &set_code(const char *code);
-  AlarmControlPanelCall &set_code(const char *code, size_t len);
-  AlarmControlPanelCall &set_code(const std::string &code) { return this->set_code(code.c_str(), code.size()); }
+  AlarmControlPanelCall &set_code(const std::string &code) { return this->set_code(code.c_str()); }
   AlarmControlPanelCall &arm_away();
   AlarmControlPanelCall &arm_home();
   AlarmControlPanelCall &arm_night();

esphome/components/alarm_control_panel/alarm_control_panel_state.cpp

@@ -1,15 +1,32 @@
 #include "alarm_control_panel_state.h"
-#include "esphome/core/progmem.h"
 
 namespace esphome::alarm_control_panel {
 
-// Alarm control panel state strings indexed by AlarmControlPanelState enum (0-9)
-PROGMEM_STRING_TABLE(AlarmControlPanelStateStrings, "DISARMED", "ARMED_HOME", "ARMED_AWAY", "ARMED_NIGHT",
-                     "ARMED_VACATION", "ARMED_CUSTOM_BYPASS", "PENDING", "ARMING", "DISARMING", "TRIGGERED", "UNKNOWN");
-
 const LogString *alarm_control_panel_state_to_string(AlarmControlPanelState state) {
-  return AlarmControlPanelStateStrings::get_log_str(static_cast<uint8_t>(state),
-                                                    AlarmControlPanelStateStrings::LAST_INDEX);
+  switch (state) {
+    case ACP_STATE_DISARMED:
+      return LOG_STR("DISARMED");
+    case ACP_STATE_ARMED_HOME:
+      return LOG_STR("ARMED_HOME");
+    case ACP_STATE_ARMED_AWAY:
+      return LOG_STR("ARMED_AWAY");
+    case ACP_STATE_ARMED_NIGHT:
+      return LOG_STR("ARMED_NIGHT");
+    case ACP_STATE_ARMED_VACATION:
+      return LOG_STR("ARMED_VACATION");
+    case ACP_STATE_ARMED_CUSTOM_BYPASS:
+      return LOG_STR("ARMED_CUSTOM_BYPASS");
+    case ACP_STATE_PENDING:
+      return LOG_STR("PENDING");
+    case ACP_STATE_ARMING:
+      return LOG_STR("ARMING");
+    case ACP_STATE_DISARMING:
+      return LOG_STR("DISARMING");
+    case ACP_STATE_TRIGGERED:
+      return LOG_STR("TRIGGERED");
+    default:
+      return LOG_STR("UNKNOWN");
+  }
 }
 
 }  // namespace esphome::alarm_control_panel

esphome/components/alarm_control_panel/automation.h

@@ -5,27 +5,60 @@
 
 namespace esphome::alarm_control_panel {
 
-/// Callback forwarder that triggers an Automation<> on any state change.
-/// Pointer-sized (single Automation* field) to fit inline in Callback::ctx_.
-struct StateAnyForwarder {
-  Automation<> *automation;
-  void operator()(AlarmControlPanelState /*state*/) const { this->automation->trigger(); }
-};
-
-/// Callback forwarder that triggers an Automation<> only when the alarm enters a specific state.
-/// Pointer-sized (single Automation* field) to fit inline in Callback::ctx_.
-template<AlarmControlPanelState State> struct StateEnterForwarder {
-  Automation<> *automation;
-  void operator()(AlarmControlPanelState state) const {
-    if (state == State)
-      this->automation->trigger();
+/// Trigger on any state change
+class StateTrigger : public Trigger<> {
+ public:
+  explicit StateTrigger(AlarmControlPanel *alarm_control_panel) {
+    alarm_control_panel->add_on_state_callback([this]() { this->trigger(); });
   }
 };
 
-static_assert(sizeof(StateAnyForwarder) <= sizeof(void *));
-static_assert(std::is_trivially_copyable_v<StateAnyForwarder>);
-static_assert(sizeof(StateEnterForwarder<ACP_STATE_TRIGGERED>) <= sizeof(void *));
-static_assert(std::is_trivially_copyable_v<StateEnterForwarder<ACP_STATE_TRIGGERED>>);
+/// Template trigger that fires when entering a specific state
+template<AlarmControlPanelState State> class StateEnterTrigger : public Trigger<> {
+ public:
+  explicit StateEnterTrigger(AlarmControlPanel *alarm_control_panel) : alarm_control_panel_(alarm_control_panel) {
+    alarm_control_panel->add_on_state_callback([this]() {
+      if (this->alarm_control_panel_->get_state() == State)
+        this->trigger();
+    });
+  }
+
+ protected:
+  AlarmControlPanel *alarm_control_panel_;
+};
+
+// Type aliases for state-specific triggers
+using TriggeredTrigger = StateEnterTrigger<ACP_STATE_TRIGGERED>;
+using ArmingTrigger = StateEnterTrigger<ACP_STATE_ARMING>;
+using PendingTrigger = StateEnterTrigger<ACP_STATE_PENDING>;
+using ArmedHomeTrigger = StateEnterTrigger<ACP_STATE_ARMED_HOME>;
+using ArmedNightTrigger = StateEnterTrigger<ACP_STATE_ARMED_NIGHT>;
+using ArmedAwayTrigger = StateEnterTrigger<ACP_STATE_ARMED_AWAY>;
+using DisarmedTrigger = StateEnterTrigger<ACP_STATE_DISARMED>;
+
+/// Trigger when leaving TRIGGERED state (alarm cleared)
+class ClearedTrigger : public Trigger<> {
+ public:
+  explicit ClearedTrigger(AlarmControlPanel *alarm_control_panel) {
+    alarm_control_panel->add_on_cleared_callback([this]() { this->trigger(); });
+  }
+};
+
+/// Trigger on chime event (zone opened while disarmed)
+class ChimeTrigger : public Trigger<> {
+ public:
+  explicit ChimeTrigger(AlarmControlPanel *alarm_control_panel) {
+    alarm_control_panel->add_on_chime_callback([this]() { this->trigger(); });
+  }
+};
+
+/// Trigger on ready state change
+class ReadyTrigger : public Trigger<> {
+ public:
+  explicit ReadyTrigger(AlarmControlPanel *alarm_control_panel) {
+    alarm_control_panel->add_on_ready_callback([this]() { this->trigger(); });
+  }
+};
 
 template<typename... Ts> class ArmAwayAction : public Action<Ts...> {
  public:

esphome/components/alpha3/alpha3.cpp

@@ -125,7 +125,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
         this->current_sensor_->publish_state(NAN);
       if (this->speed_sensor_ != nullptr)
         this->speed_sensor_->publish_state(NAN);
-      if (this->voltage_sensor_ != nullptr)
+      if (this->speed_sensor_ != nullptr)
         this->voltage_sensor_->publish_state(NAN);
       break;
     }

esphome/components/alpha3/sensor.py

@@ -9,10 +9,6 @@ from esphome.const import (
     CONF_POWER,
     CONF_SPEED,
     CONF_VOLTAGE,
-    DEVICE_CLASS_CURRENT,
-    DEVICE_CLASS_POWER,
-    DEVICE_CLASS_VOLTAGE,
-    STATE_CLASS_MEASUREMENT,
     UNIT_AMPERE,
     UNIT_CUBIC_METER_PER_HOUR,
     UNIT_METER,
@@ -31,35 +27,26 @@ CONFIG_SCHEMA = (
             cv.Optional(CONF_FLOW): sensor.sensor_schema(
                 unit_of_measurement=UNIT_CUBIC_METER_PER_HOUR,
                 accuracy_decimals=2,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_HEAD): sensor.sensor_schema(
                 unit_of_measurement=UNIT_METER,
                 accuracy_decimals=2,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_POWER): sensor.sensor_schema(
                 unit_of_measurement=UNIT_WATT,
                 accuracy_decimals=2,
-                device_class=DEVICE_CLASS_POWER,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_CURRENT): sensor.sensor_schema(
                 unit_of_measurement=UNIT_AMPERE,
                 accuracy_decimals=2,
-                device_class=DEVICE_CLASS_CURRENT,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_SPEED): sensor.sensor_schema(
                 unit_of_measurement=UNIT_REVOLUTIONS_PER_MINUTE,
                 accuracy_decimals=2,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_VOLTAGE): sensor.sensor_schema(
                 unit_of_measurement=UNIT_VOLT,
                 accuracy_decimals=2,
-                device_class=DEVICE_CLASS_VOLTAGE,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
         }
     )

esphome/components/am2315c/am2315c.cpp

@@ -176,5 +176,7 @@ void AM2315C::dump_config() {
   LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
 }
 
+float AM2315C::get_setup_priority() const { return setup_priority::DATA; }
+
 }  // namespace am2315c
 }  // namespace esphome

esphome/components/am2315c/am2315c.h

@@ -33,6 +33,7 @@ class AM2315C : public PollingComponent, public i2c::I2CDevice {
   void dump_config() override;
   void update() override;
   void setup() override;
+  float get_setup_priority() const override;
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { this->temperature_sensor_ = temperature_sensor; }
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { this->humidity_sensor_ = humidity_sensor; }

esphome/components/am2320/am2320.cpp

@@ -51,6 +51,7 @@ void AM2320Component::dump_config() {
   LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
   LOG_SENSOR("  ", "Humidity", this->humidity_sensor_);
 }
+float AM2320Component::get_setup_priority() const { return setup_priority::DATA; }
 
 bool AM2320Component::read_bytes_(uint8_t a_register, uint8_t *data, uint8_t len, uint32_t conversion) {
   if (!this->write_bytes(a_register, data, 2)) {

esphome/components/am2320/am2320.h

@@ -11,6 +11,7 @@ class AM2320Component : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
+  float get_setup_priority() const override;
   void update() override;
 
   void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }

esphome/components/am43/cover/am43_cover.cpp

@@ -63,9 +63,8 @@ void Am43Component::control(const CoverCall &call) {
       ESP_LOGW(TAG, "[%s] Error writing stop command to device, error = %d", this->get_name().c_str(), status);
     }
   }
-  auto opt_pos = call.get_position();
-  if (opt_pos.has_value()) {
-    auto pos = *opt_pos;
+  if (call.get_position().has_value()) {
+    auto pos = *call.get_position();
 
     if (this->invert_position_)
       pos = 1 - pos;

esphome/components/am43/sensor/__init__.py

@@ -8,7 +8,6 @@ from esphome.const import (
     DEVICE_CLASS_BATTERY,
     ENTITY_CATEGORY_DIAGNOSTIC,
     ICON_BRIGHTNESS_5,
-    STATE_CLASS_MEASUREMENT,
     UNIT_PERCENT,
 )
 
@@ -27,13 +26,11 @@ CONFIG_SCHEMA = (
                 device_class=DEVICE_CLASS_BATTERY,
                 accuracy_decimals=0,
                 entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_ILLUMINANCE): sensor.sensor_schema(
                 unit_of_measurement=UNIT_PERCENT,
                 icon=ICON_BRIGHTNESS_5,
                 accuracy_decimals=0,
-                state_class=STATE_CLASS_MEASUREMENT,
             ),
         }
     )

esphome/components/am43/sensor/am43_sensor.h

@@ -35,7 +35,7 @@ class Am43 : public esphome::ble_client::BLEClientNode, public PollingComponent
   uint8_t current_sensor_;
   // The AM43 often gets into a state where it spams loads of battery update
   // notifications. Here we will limit to no more than every 10s.
-  uint32_t last_battery_update_;
+  uint8_t last_battery_update_;
 };
 
 }  // namespace am43

esphome/components/analog_threshold/analog_threshold_binary_sensor.h

@@ -1,6 +1,5 @@
 #pragma once
 
-#include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/components/binary_sensor/binary_sensor.h"
 #include "esphome/components/sensor/sensor.h"
@@ -19,8 +18,8 @@ class AnalogThresholdBinarySensor : public Component, public binary_sensor::Bina
 
  protected:
   sensor::Sensor *sensor_{nullptr};
-  TemplatableFn<float> upper_threshold_{};
-  TemplatableFn<float> lower_threshold_{};
+  TemplatableValue<float> upper_threshold_{};
+  TemplatableValue<float> lower_threshold_{};
   bool raw_state_{false};  // Pre-filter state for hysteresis logic
 };
 

esphome/components/analog_threshold/binary_sensor.py

@@ -40,10 +40,10 @@ async def to_code(config):
     cg.add(var.set_sensor(sens))
 
     if isinstance(config[CONF_THRESHOLD], dict):
-        lower = await cg.templatable(config[CONF_THRESHOLD][CONF_LOWER], [], cg.float_)
-        upper = await cg.templatable(config[CONF_THRESHOLD][CONF_UPPER], [], cg.float_)
+        lower = await cg.templatable(config[CONF_THRESHOLD][CONF_LOWER], [], float)
+        upper = await cg.templatable(config[CONF_THRESHOLD][CONF_UPPER], [], float)
     else:
-        lower = await cg.templatable(config[CONF_THRESHOLD], [], cg.float_)
+        lower = await cg.templatable(config[CONF_THRESHOLD], [], float)
         upper = lower
     cg.add(var.set_upper_threshold(upper))
     cg.add(var.set_lower_threshold(lower))

esphome/components/animation/__init__.py

@@ -69,15 +69,9 @@ SET_FRAME_SCHEMA = cv.Schema(
 )
 
 
-@automation.register_action(
-    "animation.next_frame", NextFrameAction, NEXT_FRAME_SCHEMA, synchronous=True
-)
-@automation.register_action(
-    "animation.prev_frame", PrevFrameAction, PREV_FRAME_SCHEMA, synchronous=True
-)
-@automation.register_action(
-    "animation.set_frame", SetFrameAction, SET_FRAME_SCHEMA, synchronous=True
-)
+@automation.register_action("animation.next_frame", NextFrameAction, NEXT_FRAME_SCHEMA)
+@automation.register_action("animation.prev_frame", PrevFrameAction, PREV_FRAME_SCHEMA)
+@automation.register_action("animation.set_frame", SetFrameAction, SET_FRAME_SCHEMA)
 async def animation_action_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, paren)

esphome/components/anova/anova.cpp

@@ -24,9 +24,8 @@ void Anova::loop() {
 }
 
 void Anova::control(const ClimateCall &call) {
-  auto mode_val = call.get_mode();
-  if (mode_val.has_value()) {
-    ClimateMode mode = *mode_val;
+  if (call.get_mode().has_value()) {
+    ClimateMode mode = *call.get_mode();
     AnovaPacket *pkt;
     switch (mode) {
       case climate::CLIMATE_MODE_OFF:
@@ -46,9 +45,8 @@ void Anova::control(const ClimateCall &call) {
       ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
-  auto target_temp = call.get_target_temperature();
-  if (target_temp.has_value()) {
-    auto *pkt = this->codec_->get_set_target_temp_request(*target_temp);
+  if (call.get_target_temperature().has_value()) {
+    auto *pkt = this->codec_->get_set_target_temp_request(*call.get_target_temperature());
     auto status =
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
@@ -69,8 +67,10 @@ void Anova::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(ANOVA_SERVICE_UUID, ANOVA_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
-        ESP_LOGW(TAG, "[%s] No control service found at device, not an Anova..?", this->get_name().c_str());
-        ESP_LOGW(TAG, "[%s] Note, this component does not currently support Anova Nano.", this->get_name().c_str());
+        ESP_LOGW(TAG,
+                 "[%s] No control service found at device, not an Anova..?\n"
+                 "[%s] Note, this component does not currently support Anova Nano.",
+                 this->get_name().c_str(), this->get_name().c_str());
         break;
       }
       this->char_handle_ = chr->handle;
@@ -144,12 +144,9 @@ void Anova::update() {
     return;
 
   if (this->current_request_ < 2) {
-    AnovaPacket *pkt;
-    if (this->current_request_ == 0) {
-      pkt = this->codec_->get_set_unit_request(this->fahrenheit_ ? 'f' : 'c');
-    } else {
-      pkt = this->codec_->get_read_device_status_request();
-    }
+    auto *pkt = this->codec_->get_read_device_status_request();
+    if (this->current_request_ == 0)
+      this->codec_->get_set_unit_request(this->fahrenheit_ ? 'f' : 'c');
     auto status =
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);

esphome/components/anova/anova_base.cpp

@@ -2,8 +2,6 @@
 #include <cstdio>
 #include <cstring>
 
-#include "esphome/core/alloc_helpers.h"
-
 namespace esphome {
 namespace anova {
 
@@ -107,14 +105,14 @@ void AnovaCodec::decode(const uint8_t *data, uint16_t length) {
     }
     case READ_TARGET_TEMPERATURE:
     case SET_TARGET_TEMPERATURE: {
-      this->target_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);  // NOLINT
+      this->target_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);
       if (this->fahrenheit_)
         this->target_temp_ = ftoc(this->target_temp_);
       this->has_target_temp_ = true;
       break;
     }
     case READ_CURRENT_TEMPERATURE: {
-      this->current_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);  // NOLINT
+      this->current_temp_ = parse_number<float>(str_until(buf, '\r')).value_or(0.0f);
       if (this->fahrenheit_)
         this->current_temp_ = ftoc(this->current_temp_);
       this->has_current_temp_ = true;

esphome/components/apds9960/apds9960.cpp

@@ -251,11 +251,11 @@ void APDS9960::read_gesture_data_() {
 
   uint8_t buf[128];
   for (uint8_t pos = 0; pos < fifo_level * 4; pos += 32) {
-    // Read in 32-byte chunks due to ESP8266 I2C buffer limit.
-    // Always read from 0xFC — the FIFO auto-increments through 0xFC-0xFF
-    // and advances its internal pointer after every 4th byte.
+    // The ESP's i2c driver has a limited buffer size.
+    // This way of retrieving the data should be wrong according to the datasheet
+    // but it seems to work.
     uint8_t read = std::min(32, fifo_level * 4 - pos);
-    APDS9960_WARNING_CHECK(this->read_bytes(0xFC, buf + pos, read), "Reading FIFO buffer failed.");
+    APDS9960_WARNING_CHECK(this->read_bytes(0xFC + pos, buf + pos, read), "Reading FIFO buffer failed.");
   }
 
   if (millis() - this->gesture_start_ > 500) {
@@ -384,6 +384,7 @@ void APDS9960::process_dataset_(int up, int down, int left, int right) {
     }
   }
 }
+float APDS9960::get_setup_priority() const { return setup_priority::DATA; }
 bool APDS9960::is_proximity_enabled_() const {
   return
 #ifdef USE_SENSOR

esphome/components/apds9960/apds9960.h

@@ -32,6 +32,7 @@ class APDS9960 : public PollingComponent, public i2c::I2CDevice {
  public:
   void setup() override;
   void dump_config() override;
+  float get_setup_priority() const override;
   void update() override;
   void loop() override;
 

esphome/components/api/__init__.py

@@ -76,7 +76,7 @@ SERVICE_ARG_NATIVE_TYPES: dict[str, MockObj] = {
     "bool": cg.bool_,
     "int": cg.int32,
     "float": cg.float_,
-    "string": cg.StringRef,
+    "string": cg.std_string,
     "bool[]": cg.FixedVector.template(cg.bool_).operator("const").operator("ref"),
     "int[]": cg.FixedVector.template(cg.int32).operator("const").operator("ref"),
     "float[]": cg.FixedVector.template(cg.float_).operator("const").operator("ref"),
@@ -233,8 +233,8 @@ def _consume_api_sockets(config: ConfigType) -> ConfigType:
 
     # API needs 1 listening socket + typically 3 concurrent client connections
     # (not max_connections, which is the upper limit rarely reached)
-    socket.consume_sockets(3, "api")(config)
-    socket.consume_sockets(1, "api", socket.SocketType.TCP_LISTEN)(config)
+    sockets_needed = 1 + 3
+    socket.consume_sockets(sockets_needed, "api")(config)
     return config
 
 
@@ -291,22 +291,21 @@ CONFIG_SCHEMA = cv.All(
             cv.SplitDefault(
                 CONF_MAX_CONNECTIONS,
                 esp8266=4,  # ~40KB free RAM, each connection uses ~500-1000 bytes
-                esp32=5,  # 520KB RAM available
+                esp32=8,  # 520KB RAM available
                 rp2040=4,  # 264KB RAM but LWIP constraints
-                bk72xx=5,  # Moderate RAM
-                rtl87xx=5,  # Moderate RAM
+                bk72xx=8,  # Moderate RAM
+                rtl87xx=8,  # Moderate RAM
                 host=8,  # Abundant resources
-                ln882x=5,  # Moderate RAM
+                ln882x=8,  # Moderate RAM
             ): cv.int_range(min=1, max=20),
             # Maximum queued send buffers per connection before dropping connection
             # Each buffer uses ~8-12 bytes overhead plus actual message size
             # Platform defaults based on available RAM and typical message rates:
-            # CONF_MAX_SEND_QUEUE defaults are power of 2 for efficient modulo
             cv.SplitDefault(
                 CONF_MAX_SEND_QUEUE,
-                esp8266=4,  # Limited RAM, need to fail fast
+                esp8266=5,  # Limited RAM, need to fail fast
                 esp32=8,  # More RAM, can buffer more
-                rp2040=8,  # Moderate RAM
+                rp2040=5,  # Limited RAM
                 bk72xx=8,  # Moderate RAM
                 nrf52=8,  # Moderate RAM
                 rtl87xx=8,  # Moderate RAM
@@ -336,7 +335,8 @@ async def to_code(config: ConfigType) -> None:
     cg.add(var.set_batch_delay(config[CONF_BATCH_DELAY]))
     if CONF_LISTEN_BACKLOG in config:
         cg.add(var.set_listen_backlog(config[CONF_LISTEN_BACKLOG]))
-    cg.add_define("MAX_API_CONNECTIONS", config[CONF_MAX_CONNECTIONS])
+    if CONF_MAX_CONNECTIONS in config:
+        cg.add(var.set_max_connections(config[CONF_MAX_CONNECTIONS]))
     cg.add_define("API_MAX_SEND_QUEUE", config[CONF_MAX_SEND_QUEUE])
 
     # Set USE_API_USER_DEFINED_ACTIONS if any services are enabled
@@ -380,18 +380,9 @@ async def to_code(config: ConfigType) -> None:
                 if is_optional:
                     func_args.append((cg.bool_, "return_response"))
 
-            # Check if action chain has non-synchronous actions that would make
-            # non-owning StringRef dangle (rx_buf_ reused after delay)
-            has_non_synchronous = automation.has_non_synchronous_actions(
-                conf.get(CONF_THEN, [])
-            )
-
             service_arg_names: list[str] = []
             for name, var_ in conf[CONF_VARIABLES].items():
                 native = SERVICE_ARG_NATIVE_TYPES[var_]
-                # Fall back to std::string for string args if non-synchronous actions exist
-                if has_non_synchronous and native is cg.StringRef:
-                    native = cg.std_string
                 service_template_args.append(native)
                 func_args.append((native, name))
                 service_arg_names.append(name)
@@ -453,10 +444,7 @@ async def to_code(config: ConfigType) -> None:
             # and plaintext disabled. Only a factory reset can remove it.
             cg.add_define("USE_API_PLAINTEXT")
         cg.add_define("USE_API_NOISE")
-        cg.add_library("esphome/noise-c", "0.1.11")
-        # Enable optimized memzero/memcmp in libsodium instead of volatile byte loops
-        cg.add_build_flag("-DHAVE_WEAK_SYMBOLS=1")
-        cg.add_build_flag("-DHAVE_INLINE_ASM=1")
+        cg.add_library("esphome/noise-c", "0.1.10")
     else:
         cg.add_define("USE_API_PLAINTEXT")
 
@@ -521,13 +509,11 @@ HOMEASSISTANT_ACTION_ACTION_SCHEMA = cv.All(
     "homeassistant.action",
     HomeAssistantServiceCallAction,
     HOMEASSISTANT_ACTION_ACTION_SCHEMA,
-    synchronous=True,
 )
 @automation.register_action(
     "homeassistant.service",
     HomeAssistantServiceCallAction,
     HOMEASSISTANT_ACTION_ACTION_SCHEMA,
-    synchronous=True,
 )
 async def homeassistant_service_to_code(
     config: ConfigType,
@@ -538,31 +524,24 @@ async def homeassistant_service_to_code(
     cg.add_define("USE_API_HOMEASSISTANT_SERVICES")
     serv = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, serv, False)
-    templ = await cg.templatable(config[CONF_ACTION], args, cg.std_string)
+    templ = await cg.templatable(config[CONF_ACTION], args, None)
     cg.add(var.set_service(templ))
 
     # Initialize FixedVectors with exact sizes from config
     cg.add(var.init_data(len(config[CONF_DATA])))
     for key, value in config[CONF_DATA].items():
-        # output_type=None because lambdas can return non-string types (int,
-        # float, char*) that TemplatableStringValue converts via to_string.
-        # Static strings are manually wrapped for PROGMEM on ESP8266.
         templ = await cg.templatable(value, args, None)
-        if isinstance(templ, str):
-            templ = cg.FlashStringLiteral(templ)
-        cg.add(var.add_data(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_data(key, templ))
 
     cg.add(var.init_data_template(len(config[CONF_DATA_TEMPLATE])))
     for key, value in config[CONF_DATA_TEMPLATE].items():
         templ = await cg.templatable(value, args, None)
-        if isinstance(templ, str):
-            templ = cg.FlashStringLiteral(templ)
-        cg.add(var.add_data_template(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_data_template(key, templ))
 
     cg.add(var.init_variables(len(config[CONF_VARIABLES])))
     for key, value in config[CONF_VARIABLES].items():
         templ = await cg.templatable(value, args, None)
-        cg.add(var.add_variable(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_variable(key, templ))
 
     if on_error := config.get(CONF_ON_ERROR):
         cg.add_define("USE_API_HOMEASSISTANT_ACTION_RESPONSES")
@@ -625,37 +604,29 @@ HOMEASSISTANT_EVENT_ACTION_SCHEMA = cv.Schema(
     "homeassistant.event",
     HomeAssistantServiceCallAction,
     HOMEASSISTANT_EVENT_ACTION_SCHEMA,
-    synchronous=True,
 )
 async def homeassistant_event_to_code(config, action_id, template_arg, args):
     cg.add_define("USE_API_HOMEASSISTANT_SERVICES")
     serv = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, serv, True)
-    templ = await cg.templatable(config[CONF_EVENT], args, cg.std_string)
+    templ = await cg.templatable(config[CONF_EVENT], args, None)
     cg.add(var.set_service(templ))
 
     # Initialize FixedVectors with exact sizes from config
     cg.add(var.init_data(len(config[CONF_DATA])))
     for key, value in config[CONF_DATA].items():
-        # output_type=None because lambdas can return non-string types (int,
-        # float, char*) that TemplatableStringValue converts via to_string.
-        # Static strings are manually wrapped for PROGMEM on ESP8266.
         templ = await cg.templatable(value, args, None)
-        if isinstance(templ, str):
-            templ = cg.FlashStringLiteral(templ)
-        cg.add(var.add_data(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_data(key, templ))
 
     cg.add(var.init_data_template(len(config[CONF_DATA_TEMPLATE])))
     for key, value in config[CONF_DATA_TEMPLATE].items():
         templ = await cg.templatable(value, args, None)
-        if isinstance(templ, str):
-            templ = cg.FlashStringLiteral(templ)
-        cg.add(var.add_data_template(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_data_template(key, templ))
 
     cg.add(var.init_variables(len(config[CONF_VARIABLES])))
     for key, value in config[CONF_VARIABLES].items():
         templ = await cg.templatable(value, args, None)
-        cg.add(var.add_variable(cg.FlashStringLiteral(key), templ))
+        cg.add(var.add_variable(key, templ))
 
     return var
 
@@ -673,17 +644,16 @@ HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA = cv.maybe_simple_value(
     "homeassistant.tag_scanned",
     HomeAssistantServiceCallAction,
     HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA,
-    synchronous=True,
 )
 async def homeassistant_tag_scanned_to_code(config, action_id, template_arg, args):
     cg.add_define("USE_API_HOMEASSISTANT_SERVICES")
     serv = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, serv, True)
-    cg.add(var.set_service(cg.FlashStringLiteral("esphome.tag_scanned")))
+    cg.add(var.set_service("esphome.tag_scanned"))
     # Initialize FixedVector with exact size (1 data field)
     cg.add(var.init_data(1))
     templ = await cg.templatable(config[CONF_TAG], args, cg.std_string)
-    cg.add(var.add_data(cg.FlashStringLiteral("tag_id"), templ))
+    cg.add(var.add_data("tag_id", templ))
     return var
 
 
@@ -715,7 +685,6 @@ API_RESPOND_ACTION_SCHEMA = cv.All(
     "api.respond",
     APIRespondAction,
     API_RESPOND_ACTION_SCHEMA,
-    synchronous=True,
 )
 async def api_respond_to_code(
     config: ConfigType,

esphome/components/api/api_buffer.cpp

@@ -1,13 +0,0 @@
-#include "api_buffer.h"
-
-namespace esphome::api {
-
-void APIBuffer::grow_(size_t n) {
-  auto new_data = make_buffer(n);
-  if (this->size_)
-    std::memcpy(new_data.get(), this->data_.get(), this->size_);
-  this->data_ = std::move(new_data);
-  this->capacity_ = n;
-}
-
-}  // namespace esphome::api

esphome/components/api/api_buffer.h

@@ -1,73 +0,0 @@
-#pragma once
-
-#include <cstdint>
-#include <cstring>
-#include <memory>
-
-#include "esphome/core/defines.h"
-#include "esphome/core/helpers.h"
-
-namespace esphome::api {
-
-/// Helper to use make_unique_for_overwrite where available (skips zero-fill),
-/// falling back to make_unique on older GCC (ESP8266, LibreTiny).
-inline std::unique_ptr<uint8_t[]> make_buffer(size_t n) {
-#if defined(USE_ESP8266) || defined(USE_LIBRETINY)
-  return std::make_unique<uint8_t[]>(n);
-#else
-  return std::make_unique_for_overwrite<uint8_t[]>(n);
-#endif
-}
-
-/// Byte buffer that skips zero-initialization on resize().
-///
-/// std::vector<uint8_t>::resize() zero-fills new bytes via memset. For the
-/// shared protobuf write buffer, every byte is overwritten by the encoder,
-/// making the zero-fill pure waste. For the receive buffer, bytes are
-/// overwritten by socket reads.
-///
-/// Designed for bulk clear/resize/overwrite patterns. grow_() allocates
-/// exactly the requested size (no growth factor) since callers resize to
-/// known sizes rather than appending incrementally.
-///
-/// Safe because: callers always write exactly the number of bytes they
-/// resize for. In the protobuf write path, debug_check_bounds_ validates
-/// writes in debug builds.
-class APIBuffer {
- public:
-  void clear() { this->size_ = 0; }
-  inline void reserve(size_t n) ESPHOME_ALWAYS_INLINE {
-    if (n > this->capacity_)
-      this->grow_(n);
-  }
-  inline void resize(size_t n) ESPHOME_ALWAYS_INLINE {
-    this->reserve(n);
-    this->size_ = n;  // no zero-fill
-  }
-  /// Reserve capacity for max(reserve_size, new_size) bytes, then set size to new_size.
-  /// Single grow_ check regardless of argument order.
-  inline void reserve_and_resize(size_t reserve_size, size_t new_size) ESPHOME_ALWAYS_INLINE {
-    this->reserve(std::max(reserve_size, new_size));
-    this->size_ = new_size;
-  }
-  uint8_t *data() { return this->data_.get(); }
-  const uint8_t *data() const { return this->data_.get(); }
-  size_t size() const { return this->size_; }
-  bool empty() const { return this->size_ == 0; }
-  uint8_t &operator[](size_t i) { return this->data_[i]; }
-  const uint8_t &operator[](size_t i) const { return this->data_[i]; }
-  /// Release all memory (equivalent to std::vector swap trick).
-  void release() {
-    this->data_.reset();
-    this->size_ = 0;
-    this->capacity_ = 0;
-  }
-
- protected:
-  void grow_(size_t n);
-  std::unique_ptr<uint8_t[]> data_;
-  size_t size_{0};
-  size_t capacity_{0};
-};
-
-}  // namespace esphome::api

esphome/components/api/api_connection.h

@@ -3,26 +3,11 @@
 #include "esphome/core/defines.h"
 #ifdef USE_API
 #include "api_frame_helper.h"
-#ifdef USE_API_NOISE
-#include "api_frame_helper_noise.h"
-#endif
-#ifdef USE_API_PLAINTEXT
-#include "api_frame_helper_plaintext.h"
-#endif
 #include "api_pb2.h"
 #include "api_pb2_service.h"
 #include "api_server.h"
 #include "esphome/core/application.h"
 #include "esphome/core/component.h"
-#ifdef USE_ESP32_CRASH_HANDLER
-#include "esphome/components/esp32/crash_handler.h"
-#endif
-#ifdef USE_RP2040_CRASH_HANDLER
-#include "esphome/components/rp2040/crash_handler.h"
-#endif
-#ifdef USE_ESP8266_CRASH_HANDLER
-#include "esphome/components/esp8266/crash_handler.h"
-#endif
 #include "esphome/core/entity_base.h"
 #include "esphome/core/string_ref.h"
 
@@ -30,10 +15,6 @@
 #include <limits>
 #include <vector>
 
-namespace esphome {
-class ComponentIterator;
-}  // namespace esphome
-
 namespace esphome::api {
 
 // Keepalive timeout in milliseconds
@@ -47,46 +28,16 @@ static constexpr size_t MAX_INITIAL_PER_BATCH = 34;         // For clients >= AP
 static_assert(MAX_MESSAGES_PER_BATCH >= MAX_INITIAL_PER_BATCH,
               "MAX_MESSAGES_PER_BATCH must be >= MAX_INITIAL_PER_BATCH");
 
-#ifdef USE_BENCHMARK
-class APIConnection;
-void bench_enable_immediate_send(APIConnection *conn);
-void bench_clear_batch(APIConnection *conn);
-void bench_process_batch(APIConnection *conn);
-#endif
-
-class APIConnection final : public APIServerConnectionBase {
+class APIConnection final : public APIServerConnection {
  public:
   friend class APIServer;
   friend class ListEntitiesIterator;
-#ifdef USE_BENCHMARK
-  friend void bench_enable_immediate_send(APIConnection *conn);
-  friend void bench_clear_batch(APIConnection *conn);
-  friend void bench_process_batch(APIConnection *conn);
-#endif
   APIConnection(std::unique_ptr<socket::Socket> socket, APIServer *parent);
-  ~APIConnection();
+  virtual ~APIConnection();
 
   void start();
   void loop();
 
- protected:
-  // read_message_ is defined here (instead of in APIServerConnectionBase) so the
-  // compiler can devirtualize and inline on_* handler calls within this final class.
-  void read_message_(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data);
-
-  // Auth helpers defined here (not in ProtoService) so the compiler can
-  // devirtualize is_connection_setup()/on_no_setup_connection() calls
-  // within this final class.
-  inline bool check_connection_setup_() {
-    if (!this->is_connection_setup()) {
-      this->on_no_setup_connection();
-      return false;
-    }
-    return true;
-  }
-  inline bool check_authenticated_() { return this->check_connection_setup_(); }
-
- public:
   bool send_list_info_done() {
     return this->schedule_message_(nullptr, ListEntitiesDoneResponse::MESSAGE_TYPE,
                                    ListEntitiesDoneResponse::ESTIMATED_SIZE);
@@ -96,173 +47,163 @@ class APIConnection final : public APIServerConnectionBase {
 #endif
 #ifdef USE_COVER
   bool send_cover_state(cover::Cover *cover);
-  void on_cover_command_request(const CoverCommandRequest &msg);
+  void cover_command(const CoverCommandRequest &msg) override;
 #endif
 #ifdef USE_FAN
   bool send_fan_state(fan::Fan *fan);
-  void on_fan_command_request(const FanCommandRequest &msg);
+  void fan_command(const FanCommandRequest &msg) override;
 #endif
 #ifdef USE_LIGHT
   bool send_light_state(light::LightState *light);
-  void on_light_command_request(const LightCommandRequest &msg);
+  void light_command(const LightCommandRequest &msg) override;
 #endif
 #ifdef USE_SENSOR
   bool send_sensor_state(sensor::Sensor *sensor);
 #endif
 #ifdef USE_SWITCH
   bool send_switch_state(switch_::Switch *a_switch);
-  void on_switch_command_request(const SwitchCommandRequest &msg);
+  void switch_command(const SwitchCommandRequest &msg) override;
 #endif
 #ifdef USE_TEXT_SENSOR
   bool send_text_sensor_state(text_sensor::TextSensor *text_sensor);
 #endif
 #ifdef USE_CAMERA
   void set_camera_state(std::shared_ptr<camera::CameraImage> image);
-  void on_camera_image_request(const CameraImageRequest &msg);
+  void camera_image(const CameraImageRequest &msg) override;
 #endif
 #ifdef USE_CLIMATE
   bool send_climate_state(climate::Climate *climate);
-  void on_climate_command_request(const ClimateCommandRequest &msg);
+  void climate_command(const ClimateCommandRequest &msg) override;
 #endif
 #ifdef USE_NUMBER
   bool send_number_state(number::Number *number);
-  void on_number_command_request(const NumberCommandRequest &msg);
+  void number_command(const NumberCommandRequest &msg) override;
 #endif
 #ifdef USE_DATETIME_DATE
   bool send_date_state(datetime::DateEntity *date);
-  void on_date_command_request(const DateCommandRequest &msg);
+  void date_command(const DateCommandRequest &msg) override;
 #endif
 #ifdef USE_DATETIME_TIME
   bool send_time_state(datetime::TimeEntity *time);
-  void on_time_command_request(const TimeCommandRequest &msg);
+  void time_command(const TimeCommandRequest &msg) override;
 #endif
 #ifdef USE_DATETIME_DATETIME
   bool send_datetime_state(datetime::DateTimeEntity *datetime);
-  void on_date_time_command_request(const DateTimeCommandRequest &msg);
+  void datetime_command(const DateTimeCommandRequest &msg) override;
 #endif
 #ifdef USE_TEXT
   bool send_text_state(text::Text *text);
-  void on_text_command_request(const TextCommandRequest &msg);
+  void text_command(const TextCommandRequest &msg) override;
 #endif
 #ifdef USE_SELECT
   bool send_select_state(select::Select *select);
-  void on_select_command_request(const SelectCommandRequest &msg);
+  void select_command(const SelectCommandRequest &msg) override;
 #endif
 #ifdef USE_BUTTON
-  void on_button_command_request(const ButtonCommandRequest &msg);
+  void button_command(const ButtonCommandRequest &msg) override;
 #endif
 #ifdef USE_LOCK
   bool send_lock_state(lock::Lock *a_lock);
-  void on_lock_command_request(const LockCommandRequest &msg);
+  void lock_command(const LockCommandRequest &msg) override;
 #endif
 #ifdef USE_VALVE
   bool send_valve_state(valve::Valve *valve);
-  void on_valve_command_request(const ValveCommandRequest &msg);
+  void valve_command(const ValveCommandRequest &msg) override;
 #endif
 #ifdef USE_MEDIA_PLAYER
   bool send_media_player_state(media_player::MediaPlayer *media_player);
-  void on_media_player_command_request(const MediaPlayerCommandRequest &msg);
+  void media_player_command(const MediaPlayerCommandRequest &msg) override;
 #endif
   bool try_send_log_message(int level, const char *tag, const char *line, size_t message_len);
 #ifdef USE_API_HOMEASSISTANT_SERVICES
   void send_homeassistant_action(const HomeassistantActionRequest &call) {
     if (!this->flags_.service_call_subscription)
       return;
-    this->send_message(call);
+    this->send_message(call, HomeassistantActionRequest::MESSAGE_TYPE);
   }
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
-  void on_homeassistant_action_response(const HomeassistantActionResponse &msg);
+  void on_homeassistant_action_response(const HomeassistantActionResponse &msg) override;
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES
 #endif  // USE_API_HOMEASSISTANT_SERVICES
 #ifdef USE_BLUETOOTH_PROXY
-  void on_subscribe_bluetooth_le_advertisements_request(const SubscribeBluetoothLEAdvertisementsRequest &msg);
-  void on_unsubscribe_bluetooth_le_advertisements_request();
+  void subscribe_bluetooth_le_advertisements(const SubscribeBluetoothLEAdvertisementsRequest &msg) override;
+  void unsubscribe_bluetooth_le_advertisements(const UnsubscribeBluetoothLEAdvertisementsRequest &msg) override;
 
-  void on_bluetooth_device_request(const BluetoothDeviceRequest &msg);
-  void on_bluetooth_gatt_read_request(const BluetoothGATTReadRequest &msg);
-  void on_bluetooth_gatt_write_request(const BluetoothGATTWriteRequest &msg);
-  void on_bluetooth_gatt_read_descriptor_request(const BluetoothGATTReadDescriptorRequest &msg);
-  void on_bluetooth_gatt_write_descriptor_request(const BluetoothGATTWriteDescriptorRequest &msg);
-  void on_bluetooth_gatt_get_services_request(const BluetoothGATTGetServicesRequest &msg);
-  void on_bluetooth_gatt_notify_request(const BluetoothGATTNotifyRequest &msg);
-  void on_subscribe_bluetooth_connections_free_request();
-  void on_bluetooth_scanner_set_mode_request(const BluetoothScannerSetModeRequest &msg);
-  void on_bluetooth_set_connection_params_request(const BluetoothSetConnectionParamsRequest &msg);
+  void bluetooth_device_request(const BluetoothDeviceRequest &msg) override;
+  void bluetooth_gatt_read(const BluetoothGATTReadRequest &msg) override;
+  void bluetooth_gatt_write(const BluetoothGATTWriteRequest &msg) override;
+  void bluetooth_gatt_read_descriptor(const BluetoothGATTReadDescriptorRequest &msg) override;
+  void bluetooth_gatt_write_descriptor(const BluetoothGATTWriteDescriptorRequest &msg) override;
+  void bluetooth_gatt_get_services(const BluetoothGATTGetServicesRequest &msg) override;
+  void bluetooth_gatt_notify(const BluetoothGATTNotifyRequest &msg) override;
+  bool send_subscribe_bluetooth_connections_free_response(const SubscribeBluetoothConnectionsFreeRequest &msg) override;
+  void bluetooth_scanner_set_mode(const BluetoothScannerSetModeRequest &msg) override;
 
 #endif
 #ifdef USE_HOMEASSISTANT_TIME
   void send_time_request() {
     GetTimeRequest req;
-    this->send_message(req);
+    this->send_message(req, GetTimeRequest::MESSAGE_TYPE);
   }
 #endif
 
 #ifdef USE_VOICE_ASSISTANT
-  void on_subscribe_voice_assistant_request(const SubscribeVoiceAssistantRequest &msg);
-  void on_voice_assistant_response(const VoiceAssistantResponse &msg);
-  void on_voice_assistant_event_response(const VoiceAssistantEventResponse &msg);
-  void on_voice_assistant_audio(const VoiceAssistantAudio &msg);
-  void on_voice_assistant_timer_event_response(const VoiceAssistantTimerEventResponse &msg);
-  void on_voice_assistant_announce_request(const VoiceAssistantAnnounceRequest &msg);
-  void on_voice_assistant_configuration_request(const VoiceAssistantConfigurationRequest &msg);
-  void on_voice_assistant_set_configuration(const VoiceAssistantSetConfiguration &msg);
+  void subscribe_voice_assistant(const SubscribeVoiceAssistantRequest &msg) override;
+  void on_voice_assistant_response(const VoiceAssistantResponse &msg) override;
+  void on_voice_assistant_event_response(const VoiceAssistantEventResponse &msg) override;
+  void on_voice_assistant_audio(const VoiceAssistantAudio &msg) override;
+  void on_voice_assistant_timer_event_response(const VoiceAssistantTimerEventResponse &msg) override;
+  void on_voice_assistant_announce_request(const VoiceAssistantAnnounceRequest &msg) override;
+  bool send_voice_assistant_get_configuration_response(const VoiceAssistantConfigurationRequest &msg) override;
+  void voice_assistant_set_configuration(const VoiceAssistantSetConfiguration &msg) override;
 #endif
 
 #ifdef USE_ZWAVE_PROXY
-  void on_z_wave_proxy_frame(const ZWaveProxyFrame &msg);
-  void on_z_wave_proxy_request(const ZWaveProxyRequest &msg);
+  void zwave_proxy_frame(const ZWaveProxyFrame &msg) override;
+  void zwave_proxy_request(const ZWaveProxyRequest &msg) override;
 #endif
 
 #ifdef USE_ALARM_CONTROL_PANEL
   bool send_alarm_control_panel_state(alarm_control_panel::AlarmControlPanel *a_alarm_control_panel);
-  void on_alarm_control_panel_command_request(const AlarmControlPanelCommandRequest &msg);
+  void alarm_control_panel_command(const AlarmControlPanelCommandRequest &msg) override;
 #endif
 
 #ifdef USE_WATER_HEATER
   bool send_water_heater_state(water_heater::WaterHeater *water_heater);
-  void on_water_heater_command_request(const WaterHeaterCommandRequest &msg);
+  void on_water_heater_command_request(const WaterHeaterCommandRequest &msg) override;
 #endif
 
 #ifdef USE_IR_RF
-  void on_infrared_rf_transmit_raw_timings_request(const InfraredRFTransmitRawTimingsRequest &msg);
+  void infrared_rf_transmit_raw_timings(const InfraredRFTransmitRawTimingsRequest &msg) override;
   void send_infrared_rf_receive_event(const InfraredRFReceiveEvent &msg);
 #endif
 
-#ifdef USE_SERIAL_PROXY
-  void on_serial_proxy_configure_request(const SerialProxyConfigureRequest &msg);
-  void on_serial_proxy_write_request(const SerialProxyWriteRequest &msg);
-  void on_serial_proxy_set_modem_pins_request(const SerialProxySetModemPinsRequest &msg);
-  void on_serial_proxy_get_modem_pins_request(const SerialProxyGetModemPinsRequest &msg);
-  void on_serial_proxy_request(const SerialProxyRequest &msg);
-  void send_serial_proxy_data(const SerialProxyDataReceived &msg);
-#endif
-
 #ifdef USE_EVENT
   void send_event(event::Event *event);
 #endif
 
 #ifdef USE_UPDATE
   bool send_update_state(update::UpdateEntity *update);
-  void on_update_command_request(const UpdateCommandRequest &msg);
+  void update_command(const UpdateCommandRequest &msg) override;
 #endif
 
-  void on_disconnect_response();
-  void on_ping_response() {
+  void on_disconnect_response(const DisconnectResponse &value) override;
+  void on_ping_response(const PingResponse &value) override {
     // we initiated ping
     this->flags_.sent_ping = false;
   }
 #ifdef USE_API_HOMEASSISTANT_STATES
-  void on_home_assistant_state_response(const HomeAssistantStateResponse &msg);
+  void on_home_assistant_state_response(const HomeAssistantStateResponse &msg) override;
 #endif
 #ifdef USE_HOMEASSISTANT_TIME
-  void on_get_time_response(const GetTimeResponse &value);
+  void on_get_time_response(const GetTimeResponse &value) override;
 #endif
-  void on_hello_request(const HelloRequest &msg);
-  void on_disconnect_request();
-  void on_ping_request();
-  void on_device_info_request();
-  void on_list_entities_request() { this->begin_iterator_(ActiveIterator::LIST_ENTITIES); }
-  void on_subscribe_states_request() {
+  bool send_hello_response(const HelloRequest &msg) override;
+  bool send_disconnect_response(const DisconnectRequest &msg) override;
+  bool send_ping_response(const PingRequest &msg) override;
+  bool send_device_info_response(const DeviceInfoRequest &msg) override;
+  void list_entities(const ListEntitiesRequest &msg) override { this->begin_iterator_(ActiveIterator::LIST_ENTITIES); }
+  void subscribe_states(const SubscribeStatesRequest &msg) override {
     this->flags_.state_subscription = true;
     // Start initial state iterator only if no iterator is active
     // If list_entities is running, we'll start initial_state when it completes
@@ -270,29 +211,21 @@ class APIConnection final : public APIServerConnectionBase {
       this->begin_iterator_(ActiveIterator::INITIAL_STATE);
     }
   }
-  void on_subscribe_logs_request(const SubscribeLogsRequest &msg) {
+  void subscribe_logs(const SubscribeLogsRequest &msg) override {
     this->flags_.log_subscription = msg.level;
     if (msg.dump_config)
       App.schedule_dump_config();
-#ifdef USE_ESP32_CRASH_HANDLER
-    esp32::crash_handler_log();
-    esp32::crash_handler_clear();
-#endif
-#ifdef USE_RP2040_CRASH_HANDLER
-    rp2040::crash_handler_log();
-#endif
-#ifdef USE_ESP8266_CRASH_HANDLER
-    esp8266::crash_handler_log();
-#endif
   }
 #ifdef USE_API_HOMEASSISTANT_SERVICES
-  void on_subscribe_homeassistant_services_request() { this->flags_.service_call_subscription = true; }
+  void subscribe_homeassistant_services(const SubscribeHomeassistantServicesRequest &msg) override {
+    this->flags_.service_call_subscription = true;
+  }
 #endif
 #ifdef USE_API_HOMEASSISTANT_STATES
-  void on_subscribe_home_assistant_states_request();
+  void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) override;
 #endif
 #ifdef USE_API_USER_DEFINED_ACTIONS
-  void on_execute_service_request(const ExecuteServiceRequest &msg);
+  void execute_service(const ExecuteServiceRequest &msg) override;
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES
   void send_execute_service_response(uint32_t call_id, bool success, StringRef error_message);
 #ifdef USE_API_USER_DEFINED_ACTION_RESPONSES_JSON
@@ -302,17 +235,16 @@ class APIConnection final : public APIServerConnectionBase {
 #endif  // USE_API_USER_DEFINED_ACTION_RESPONSES
 #endif
 #ifdef USE_API_NOISE
-  void on_noise_encryption_set_key_request(const NoiseEncryptionSetKeyRequest &msg);
+  bool send_noise_encryption_set_key_response(const NoiseEncryptionSetKeyRequest &msg) override;
 #endif
 
-  bool is_authenticated() {
+  bool is_authenticated() override {
     return static_cast<ConnectionState>(this->flags_.connection_state) == ConnectionState::AUTHENTICATED;
   }
-  bool is_connection_setup() {
+  bool is_connection_setup() override {
     return static_cast<ConnectionState>(this->flags_.connection_state) == ConnectionState::CONNECTED ||
            this->is_authenticated();
   }
-  bool is_marked_for_removal() const { return this->flags_.remove; }
   uint8_t get_log_subscription_level() const { return this->flags_.log_subscription; }
 
   // Get client API version for feature detection
@@ -321,75 +253,41 @@ class APIConnection final : public APIServerConnectionBase {
            (this->client_api_version_major_ == major && this->client_api_version_minor_ >= minor);
   }
 
-  void on_fatal_error();
-  void on_no_setup_connection();
+  void on_fatal_error() override;
+  void on_no_setup_connection() override;
+  ProtoWriteBuffer create_buffer(uint32_t reserve_size) override {
+    // FIXME: ensure no recursive writes can happen
 
-  // Function pointer type for type-erased message encoding
-  using MessageEncodeFn = uint8_t *(*) (const void *, ProtoWriteBuffer &PROTO_ENCODE_DEBUG_PARAM);
-  // Function pointer type for type-erased size calculation
-  using CalculateSizeFn = uint32_t (*)(const void *);
-
-  template<typename T> bool send_message(const T &msg) {
-    if constexpr (T::ESTIMATED_SIZE == 0) {
-      return this->send_message_(0, T::MESSAGE_TYPE, &encode_msg_noop, &msg);
-    } else {
-      return this->send_message_(msg.calculate_size(), T::MESSAGE_TYPE, &proto_encode_msg<T>, &msg);
-    }
+    // Get header padding size - used for both reserve and insert
+    uint8_t header_padding = this->helper_->frame_header_padding();
+    // Get shared buffer from parent server
+    std::vector<uint8_t> &shared_buf = this->parent_->get_shared_buffer_ref();
+    this->prepare_first_message_buffer(shared_buf, header_padding,
+                                       reserve_size + header_padding + this->helper_->frame_footer_size());
+    return {&shared_buf};
   }
 
-  void prepare_first_message_buffer(APIBuffer &shared_buf, size_t header_padding, size_t total_size) {
+  void prepare_first_message_buffer(std::vector<uint8_t> &shared_buf, size_t header_padding, size_t total_size) {
     shared_buf.clear();
     // Reserve space for header padding + message + footer
     // - Header padding: space for protocol headers (7 bytes for Noise, 6 for Plaintext)
     // - Footer: space for MAC (16 bytes for Noise, 0 for Plaintext)
-    // Reserve full size but only set initial size to header padding
-    // so message encoding starts at the correct position
-    shared_buf.reserve_and_resize(total_size, header_padding);
+    shared_buf.reserve(total_size);
+    // Resize to add header padding so message encoding starts at the correct position
+    shared_buf.resize(header_padding);
   }
 
-  // Convenience overload - computes frame overhead internally
-  void prepare_first_message_buffer(APIBuffer &shared_buf, size_t payload_size) {
-    const uint8_t header_padding = this->helper_->frame_header_padding();
-    const uint8_t footer_size = this->helper_->frame_footer_size();
-    this->prepare_first_message_buffer(shared_buf, header_padding, payload_size + header_padding + footer_size);
-  }
-
-  bool try_to_clear_buffer(bool log_out_of_space) {
-    if (this->flags_.remove)
-      return false;
-    if (this->helper_->can_write_without_blocking())
-      return true;
-    return this->try_to_clear_buffer_slow_(log_out_of_space);
-  }
-  bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type);
+  bool try_to_clear_buffer(bool log_out_of_space);
+  bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) override;
 
   const char *get_name() const { return this->helper_->get_client_name(); }
-  /// Get peer name (IP address) into caller-provided buffer, returns buf for convenience
-  const char *get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const {
-    return this->helper_->get_peername_to(buf);
-  }
+  /// Get peer name (IP address) - cached at connection init time
+  const char *get_peername() const { return this->helper_->get_client_peername(); }
 
  protected:
-  bool try_to_clear_buffer_slow_(bool log_out_of_space);
-
   // Helper function to handle authentication completion
   void complete_authentication_();
 
-  // Pattern B helpers: send response and return success/failure
-  bool send_hello_response_(const HelloRequest &msg);
-  bool send_disconnect_response_();
-  bool send_ping_response_();
-  bool send_device_info_response_();
-#ifdef USE_API_NOISE
-  bool send_noise_encryption_set_key_response_(const NoiseEncryptionSetKeyRequest &msg);
-#endif
-#ifdef USE_BLUETOOTH_PROXY
-  bool send_subscribe_bluetooth_connections_free_response_();
-#endif
-#ifdef USE_VOICE_ASSISTANT
-  bool send_voice_assistant_get_configuration_response_(const VoiceAssistantConfigurationRequest &msg);
-#endif
-
 #ifdef USE_CAMERA
   void try_send_camera_image_();
 #endif
@@ -398,112 +296,50 @@ class APIConnection final : public APIServerConnectionBase {
   void process_state_subscriptions_();
 #endif
 
-  // Size thunk — converts void* back to concrete type for direct calculate_size() call
-  template<typename T> static uint32_t calc_size(const void *msg) {
-    return static_cast<const T *>(msg)->calculate_size();
-  }
+  // Non-template helper to encode any ProtoMessage
+  static uint16_t encode_message_to_buffer(ProtoMessage &msg, uint8_t message_type, APIConnection *conn,
+                                           uint32_t remaining_size, bool is_single);
 
-  // Shared no-op encode thunk for empty messages (ESTIMATED_SIZE == 0)
-  static uint8_t *encode_msg_noop(const void *, ProtoWriteBuffer &buf PROTO_ENCODE_DEBUG_PARAM) {
-    return buf.get_pos();
-  }
-
-  // Non-template buffer management for send_message
-  bool send_message_(uint32_t payload_size, uint8_t message_type, MessageEncodeFn encode_fn, const void *msg);
-
-  // Core batch encoding logic. Computes header size, checks fit, resizes buffer, encodes.
-  // ALWAYS_INLINE so the compiler can devirtualize encode_fn at hot call sites.
-  static inline uint16_t ESPHOME_ALWAYS_INLINE encode_to_buffer(uint32_t calculated_size, MessageEncodeFn encode_fn,
-                                                                const void *msg, APIConnection *conn,
-                                                                uint32_t remaining_size) {
-#ifdef HAS_PROTO_MESSAGE_DUMP
-    if (conn->flags_.log_only_mode) {
-      auto *proto_msg = static_cast<const ProtoMessage *>(msg);
-      DumpBuffer dump_buf;
-      conn->log_send_message_(proto_msg->message_name(), proto_msg->dump_to(dump_buf));
-      return 1;
-    }
+  // Helper to fill entity state base and encode message
+  static uint16_t fill_and_encode_entity_state(EntityBase *entity, StateResponseProtoMessage &msg, uint8_t message_type,
+                                               APIConnection *conn, uint32_t remaining_size, bool is_single) {
+    msg.key = entity->get_object_id_hash();
+#ifdef USE_DEVICES
+    msg.device_id = entity->get_device_id();
 #endif
-    const uint8_t footer_size = conn->helper_->frame_footer_size();
+    return encode_message_to_buffer(msg, message_type, conn, remaining_size, is_single);
+  }
 
-    // First message uses max padding (already in buffer), subsequent use exact header size
-    size_t to_add;
-    if (conn->flags_.batch_first_message) {
-      conn->flags_.batch_first_message = false;
-      conn->batch_header_size_ = conn->helper_->frame_header_padding();
-      to_add = calculated_size;
-    } else {
-      conn->batch_header_size_ = conn->helper_->frame_header_size(calculated_size, conn->batch_message_type_);
-      to_add = calculated_size + conn->batch_header_size_ + footer_size;
+  // Helper to fill entity info base and encode message
+  static uint16_t fill_and_encode_entity_info(EntityBase *entity, InfoResponseProtoMessage &msg, uint8_t message_type,
+                                              APIConnection *conn, uint32_t remaining_size, bool is_single) {
+    // Set common fields that are shared by all entity types
+    msg.key = entity->get_object_id_hash();
+
+    // API 1.14+ clients compute object_id client-side from the entity name
+    // For older clients, we must send object_id for backward compatibility
+    // See: https://github.com/esphome/backlog/issues/76
+    // TODO: Remove this backward compat code before 2026.7.0 - all clients should support API 1.14 by then
+    // Buffer must remain in scope until encode_message_to_buffer is called
+    char object_id_buf[OBJECT_ID_MAX_LEN];
+    if (!conn->client_supports_api_version(1, 14)) {
+      msg.object_id = entity->get_object_id_to(object_id_buf);
     }
 
-    // Check if it fits (using actual header size, not max padding)
-    uint16_t total_calculated_size = calculated_size + conn->batch_header_size_ + footer_size;
-    if (total_calculated_size > remaining_size)
-      return 0;
-
-    auto &shared_buf = conn->parent_->get_shared_buffer_ref();
-    shared_buf.resize(shared_buf.size() + to_add);
-    ProtoWriteBuffer buffer{&shared_buf, shared_buf.size() - calculated_size};
-    encode_fn(msg, buffer PROTO_ENCODE_DEBUG_INIT(&shared_buf));
-
-    return total_calculated_size;
-  }
-
-  // Noinline version of encode_to_buffer for cold paths (entity info, zero-payload messages).
-  // All cold callers share this single copy instead of each getting an ALWAYS_INLINE expansion.
-  static uint16_t encode_to_buffer_slow(uint32_t calculated_size, MessageEncodeFn encode_fn, const void *msg,
-                                        APIConnection *conn, uint32_t remaining_size);
-
-  // Thin template wrapper — uses noinline encode_to_buffer_slow since
-  // encode_message_to_buffer callers are cold paths (zero-payload control messages).
-  // Hot paths (state/info) go through fill_and_encode_entity_state/info instead.
-  // batch_message_type_ is already set by dispatch_message_ before reaching here.
-  template<typename T> static uint16_t encode_message_to_buffer(T &msg, APIConnection *conn, uint32_t remaining_size) {
-    if constexpr (T::ESTIMATED_SIZE == 0) {
-      return encode_to_buffer_slow(0, &encode_msg_noop, &msg, conn, remaining_size);
-    } else {
-      return encode_to_buffer_slow(msg.calculate_size(), &proto_encode_msg<T>, &msg, conn, remaining_size);
+    if (entity->has_own_name()) {
+      msg.name = entity->get_name();
     }
-  }
 
-  // Non-template core — fills state fields and encodes
-  static uint16_t fill_and_encode_entity_state(EntityBase *entity, StateResponseProtoMessage &msg,
-                                               CalculateSizeFn size_fn, MessageEncodeFn encode_fn, APIConnection *conn,
-                                               uint32_t remaining_size);
-
-  // Thin template wrapper
-  template<typename T>
-  static uint16_t fill_and_encode_entity_state(EntityBase *entity, T &msg, APIConnection *conn,
-                                               uint32_t remaining_size) {
-    return fill_and_encode_entity_state(entity, msg, &calc_size<T>, &proto_encode_msg<T>, conn, remaining_size);
-  }
-
-  // Non-template core — fills info fields, allocates buffers, and encodes
-  static uint16_t fill_and_encode_entity_info(EntityBase *entity, InfoResponseProtoMessage &msg,
-                                              CalculateSizeFn size_fn, MessageEncodeFn encode_fn, APIConnection *conn,
-                                              uint32_t remaining_size);
-
-  // Thin template wrapper
-  template<typename T>
-  static uint16_t fill_and_encode_entity_info(EntityBase *entity, T &msg, APIConnection *conn,
-                                              uint32_t remaining_size) {
-    return fill_and_encode_entity_info(entity, msg, &calc_size<T>, &proto_encode_msg<T>, conn, remaining_size);
-  }
-
-  // Non-template core — fills device_class, then delegates to fill_and_encode_entity_info
-  static uint16_t fill_and_encode_entity_info_with_device_class(EntityBase *entity, InfoResponseProtoMessage &msg,
-                                                                StringRef &device_class_field, CalculateSizeFn size_fn,
-                                                                MessageEncodeFn encode_fn, APIConnection *conn,
-                                                                uint32_t remaining_size);
-
-  // Thin template wrapper
-  template<typename T>
-  static uint16_t fill_and_encode_entity_info_with_device_class(EntityBase *entity, T &msg,
-                                                                StringRef &device_class_field, APIConnection *conn,
-                                                                uint32_t remaining_size) {
-    return fill_and_encode_entity_info_with_device_class(entity, msg, device_class_field, &calc_size<T>,
-                                                         &proto_encode_msg<T>, conn, remaining_size);
+    // Set common EntityBase properties
+#ifdef USE_ENTITY_ICON
+    msg.icon = entity->get_icon_ref();
+#endif
+    msg.disabled_by_default = entity->is_disabled_by_default();
+    msg.entity_category = static_cast<enums::EntityCategory>(entity->get_entity_category());
+#ifdef USE_DEVICES
+    msg.device_id = entity->get_device_id();
+#endif
+    return encode_message_to_buffer(msg, message_type, conn, remaining_size, is_single);
   }
 
 #ifdef USE_VOICE_ASSISTANT
@@ -518,132 +354,162 @@ class APIConnection final : public APIServerConnectionBase {
     return this->client_supports_api_version(1, 14) ? MAX_INITIAL_PER_BATCH : MAX_INITIAL_PER_BATCH_LEGACY;
   }
 
-  // Send keepalive ping or disconnect unresponsive client.
-  // Cold path — extracted from loop() to reduce instruction cache pressure.
-  void __attribute__((noinline)) check_keepalive_(uint32_t now);
+  // Helper method to process multiple entities from an iterator in a batch
+  template<typename Iterator> void process_iterator_batch_(Iterator &iterator) {
+    size_t initial_size = this->deferred_batch_.size();
+    size_t max_batch = this->get_max_batch_size_();
+    while (!iterator.completed() && (this->deferred_batch_.size() - initial_size) < max_batch) {
+      iterator.advance();
+    }
 
-  // Process active iterator (list_entities/initial_state) during connection setup.
-  // Extracted from loop() — only runs during initial handshake, NONE in steady state.
-  void __attribute__((noinline)) process_active_iterator_();
-
-  // Helper method to process multiple entities from an iterator in a batch.
-  // Takes ComponentIterator base class reference to avoid duplicate template instantiations.
-  void process_iterator_batch_(ComponentIterator &iterator);
+    // If the batch is full, process it immediately
+    // Note: iterator.advance() already calls schedule_batch_() via schedule_message_()
+    if (this->deferred_batch_.size() >= max_batch) {
+      this->process_batch_();
+    }
+  }
 
 #ifdef USE_BINARY_SENSOR
-  static uint16_t try_send_binary_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_binary_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_binary_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                               bool is_single);
+  static uint16_t try_send_binary_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                              bool is_single);
 #endif
 #ifdef USE_COVER
-  static uint16_t try_send_cover_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_cover_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_cover_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
+  static uint16_t try_send_cover_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_FAN
-  static uint16_t try_send_fan_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_fan_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_fan_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_fan_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_LIGHT
-  static uint16_t try_send_light_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_light_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_light_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
+  static uint16_t try_send_light_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_SENSOR
-  static uint16_t try_send_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
+  static uint16_t try_send_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_SWITCH
-  static uint16_t try_send_switch_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_switch_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_switch_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
+  static uint16_t try_send_switch_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_TEXT_SENSOR
-  static uint16_t try_send_text_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_text_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_text_sensor_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                             bool is_single);
+  static uint16_t try_send_text_sensor_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                            bool is_single);
 #endif
 #ifdef USE_CLIMATE
-  static uint16_t try_send_climate_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_climate_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_climate_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                         bool is_single);
+  static uint16_t try_send_climate_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
 #endif
 #ifdef USE_NUMBER
-  static uint16_t try_send_number_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_number_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_number_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
+  static uint16_t try_send_number_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_DATETIME_DATE
-  static uint16_t try_send_date_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_date_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_date_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_date_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_DATETIME_TIME
-  static uint16_t try_send_time_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_time_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_time_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_time_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_DATETIME_DATETIME
-  static uint16_t try_send_datetime_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_datetime_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_datetime_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                          bool is_single);
+  static uint16_t try_send_datetime_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                         bool is_single);
 #endif
 #ifdef USE_TEXT
-  static uint16_t try_send_text_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_text_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_text_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_text_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_SELECT
-  static uint16_t try_send_select_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_select_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_select_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
+  static uint16_t try_send_select_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_BUTTON
-  static uint16_t try_send_button_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_button_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_LOCK
-  static uint16_t try_send_lock_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_lock_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_lock_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_lock_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_VALVE
-  static uint16_t try_send_valve_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_valve_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_valve_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
+  static uint16_t try_send_valve_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_MEDIA_PLAYER
-  static uint16_t try_send_media_player_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_media_player_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_media_player_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                              bool is_single);
+  static uint16_t try_send_media_player_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                             bool is_single);
 #endif
 #ifdef USE_ALARM_CONTROL_PANEL
-  static uint16_t try_send_alarm_control_panel_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_alarm_control_panel_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_alarm_control_panel_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                                     bool is_single);
+  static uint16_t try_send_alarm_control_panel_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                                    bool is_single);
 #endif
 #ifdef USE_WATER_HEATER
-  static uint16_t try_send_water_heater_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_water_heater_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_water_heater_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                              bool is_single);
+  static uint16_t try_send_water_heater_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                             bool is_single);
 #endif
 #ifdef USE_INFRARED
-  static uint16_t try_send_infrared_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_infrared_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                         bool is_single);
 #endif
 #ifdef USE_EVENT
   static uint16_t try_send_event_response(event::Event *event, StringRef event_type, APIConnection *conn,
-                                          uint32_t remaining_size);
-  static uint16_t try_send_event_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+                                          uint32_t remaining_size, bool is_single);
+  static uint16_t try_send_event_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
 #ifdef USE_UPDATE
-  static uint16_t try_send_update_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-  static uint16_t try_send_update_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_update_state(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
+  static uint16_t try_send_update_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 #ifdef USE_CAMERA
-  static uint16_t try_send_camera_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_camera_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                       bool is_single);
 #endif
 
   // Method for ListEntitiesDone batching
-  static uint16_t try_send_list_info_done(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_list_info_done(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                          bool is_single);
 
   // Method for DisconnectRequest batching
-  static uint16_t try_send_disconnect_request(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_disconnect_request(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                              bool is_single);
 
   // Batch message method for ping requests
-  static uint16_t try_send_ping_request(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
+  static uint16_t try_send_ping_request(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
+                                        bool is_single);
 
   // === Optimal member ordering for 32-bit systems ===
 
   // Group 1: Pointers (4 bytes each on 32-bit)
-#if defined(USE_API_NOISE) && defined(USE_API_PLAINTEXT)
   std::unique_ptr<APIFrameHelper> helper_;
-#elif defined(USE_API_NOISE)
-  std::unique_ptr<APINoiseFrameHelper> helper_;
-#elif defined(USE_API_PLAINTEXT)
-  std::unique_ptr<APIPlaintextFrameHelper> helper_;
-#endif
   APIServer *parent_;
 
   // Group 2: Iterator union (saves ~16 bytes vs separate iterators)
@@ -662,7 +528,6 @@ class APIConnection final : public APIServerConnectionBase {
   // Helper methods for iterator lifecycle management
   void destroy_active_iterator_();
   void begin_iterator_(ActiveIterator type);
-  void finalize_iterator_sync_();
 #ifdef USE_CAMERA
   std::unique_ptr<camera::CameraImageReader> image_reader_;
 #endif
@@ -674,7 +539,7 @@ class APIConnection final : public APIServerConnectionBase {
 #endif
 
   // Function pointer type for message encoding
-  using MessageCreatorPtr = uint16_t (*)(EntityBase *, APIConnection *, uint32_t remaining_size);
+  using MessageCreatorPtr = uint16_t (*)(EntityBase *, APIConnection *, uint32_t remaining_size, bool is_single);
 
   // Generic batching mechanism for both state updates and entity info
   struct DeferredBatch {
@@ -697,28 +562,9 @@ class APIConnection final : public APIServerConnectionBase {
 
     // Add item to the batch (with deduplication)
     void add_item(EntityBase *entity, uint8_t message_type, uint8_t estimated_size,
-                  uint8_t aux_data_index = AUX_DATA_UNUSED) {
-      // Dedup: O(n) scan but optimized for RAM over performance
-      // Skip deduplication for events - they are edge-triggered, every occurrence matters
-#ifdef USE_EVENT
-      if (message_type != EventResponse::MESSAGE_TYPE)
-#endif
-      {
-        for (const auto &item : this->items) {
-          if (item.entity == entity && item.message_type == message_type)
-            return;  // Already queued
-        }
-      }
-      this->items.push_back({entity, message_type, estimated_size, aux_data_index});
-    }
+                  uint8_t aux_data_index = AUX_DATA_UNUSED);
     // Add item to the front of the batch (for high priority messages like ping)
-    void add_item_front(EntityBase *entity, uint8_t message_type, uint8_t estimated_size) {
-      // Swap to front avoids expensive vector::insert which shifts all elements
-      this->items.push_back({entity, message_type, estimated_size, AUX_DATA_UNUSED});
-      if (this->items.size() > 1) {
-        std::swap(this->items.front(), this->items.back());
-      }
-    }
+    void add_item_front(EntityBase *entity, uint8_t message_type, uint8_t estimated_size);
 
     // Clear all items
     void clear() {
@@ -726,8 +572,8 @@ class APIConnection final : public APIServerConnectionBase {
       batch_start_time = 0;
     }
 
-    // Remove processed items from the front — noinline to keep memmove out of warm callers
-    void remove_front(size_t count) __attribute__((noinline)) { items.erase(items.begin(), items.begin() + count); }
+    // Remove processed items from the front
+    void remove_front(size_t count) { items.erase(items.begin(), items.begin() + count); }
 
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }
@@ -771,7 +617,6 @@ class APIConnection final : public APIServerConnectionBase {
     uint8_t batch_scheduled : 1;
     uint8_t batch_first_message : 1;          // For batch buffer allocation
     uint8_t should_try_send_immediately : 1;  // True after initial states are sent
-    uint8_t may_have_remaining_data : 1;      // Read loop hit limit, retry without ready check
 #ifdef HAS_PROTO_MESSAGE_DUMP
     uint8_t log_only_mode : 1;
 #endif
@@ -780,16 +625,11 @@ class APIConnection final : public APIServerConnectionBase {
   // 2-byte types immediately after flags_ (no padding between them)
   uint16_t client_api_version_major_{0};
   uint16_t client_api_version_minor_{0};
-  // 1-byte types to fill remaining space before next 4-byte boundary
+  // 1-byte type to fill padding
   ActiveIterator active_iterator_{ActiveIterator::NONE};
-  uint8_t batch_message_type_{0};  // Current message type during batch encoding
-  // Total: 2 (flags) + 2 + 2 + 1 + 1 = 8 bytes, aligned to 4-byte boundary
+  // Total: 2 (flags) + 2 + 2 + 1 = 7 bytes, then 1 byte padding to next 4-byte boundary
 
-  // Actual header size used by encode_to_buffer for the current message.
-  // Read by process_batch_multi_ to pass into MessageInfo.
-  uint8_t batch_header_size_{0};
-
-  uint32_t get_batch_delay_ms_() const { return this->parent_->get_batch_delay(); }
+  uint32_t get_batch_delay_ms_() const;
   // Message will use 8 more bytes than the minimum size, and typical
   // MTU is 1500. Sometimes users will see as low as 1460 MTU.
   // If its IPv6 the header is 40 bytes, and if its IPv4
@@ -805,8 +645,6 @@ class APIConnection final : public APIServerConnectionBase {
 
   bool schedule_batch_();
   void process_batch_();
-  void process_batch_multi_(APIBuffer &shared_buf, size_t num_items, uint8_t header_padding, uint8_t footer_size)
-      __attribute__((noinline));
   void clear_batch_() {
     this->deferred_batch_.clear();
     this->flags_.batch_scheduled = false;
@@ -814,7 +652,7 @@ class APIConnection final : public APIServerConnectionBase {
 
   // Dispatch message encoding based on message_type - replaces function pointer storage
   // Switch assigns pointer, single call site for smaller code size
-  uint16_t dispatch_message_(const DeferredBatch::BatchItem &item, uint32_t remaining_size, bool batch_first);
+  uint16_t dispatch_message_(const DeferredBatch::BatchItem &item, uint32_t remaining_size, bool is_single);
 
 #ifdef HAS_PROTO_MESSAGE_DUMP
   void log_batch_item_(const DeferredBatch::BatchItem &item) {
@@ -846,7 +684,19 @@ class APIConnection final : public APIServerConnectionBase {
   // Tries immediate send if should_send_immediately_() returns true and buffer has space
   // Falls back to batching if immediate send fails or isn't applicable
   bool send_message_smart_(EntityBase *entity, uint8_t message_type, uint8_t estimated_size,
-                           uint8_t aux_data_index = DeferredBatch::AUX_DATA_UNUSED);
+                           uint8_t aux_data_index = DeferredBatch::AUX_DATA_UNUSED) {
+    if (this->should_send_immediately_(message_type) && this->helper_->can_write_without_blocking()) {
+      DeferredBatch::BatchItem item{entity, message_type, estimated_size, aux_data_index};
+      if (this->dispatch_message_(item, MAX_BATCH_PACKET_SIZE, true) &&
+          this->send_buffer(ProtoWriteBuffer{&this->parent_->get_shared_buffer_ref()}, message_type)) {
+#ifdef HAS_PROTO_MESSAGE_DUMP
+        this->log_batch_item_(item);
+#endif
+        return true;
+      }
+    }
+    return this->schedule_message_(entity, message_type, estimated_size, aux_data_index);
+  }
 
   // Helper function to schedule a deferred message with known message type
   bool schedule_message_(EntityBase *entity, uint8_t message_type, uint8_t estimated_size,
@@ -856,8 +706,10 @@ class APIConnection final : public APIServerConnectionBase {
   }
 
   // Helper function to schedule a high priority message at the front of the batch
-  // Out-of-line: callers (on_shutdown, check_keepalive_) are cold paths
-  bool schedule_message_front_(EntityBase *entity, uint8_t message_type, uint8_t estimated_size);
+  bool schedule_message_front_(EntityBase *entity, uint8_t message_type, uint8_t estimated_size) {
+    this->deferred_batch_.add_item_front(entity, message_type, estimated_size);
+    return this->schedule_batch_();
+  }
 
   // Helper function to log client messages with name and peername
   void log_client_(int level, const LogString *message);

esphome/components/api/api_frame_helper.cpp

@@ -16,12 +16,7 @@ static const char *const TAG = "api.frame_helper";
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif
@@ -100,90 +95,149 @@ const LogString *api_error_to_logstr(APIError err) {
   return LOG_STR("UNKNOWN");
 }
 
-#ifdef HELPER_LOG_PACKETS
-void APIFrameHelper::log_packet_sending_(const void *data, uint16_t len) {
-  LOG_PACKET_SENDING(reinterpret_cast<const uint8_t *>(data), len);
-}
-#endif
-
-APIError APIFrameHelper::drain_overflow_and_handle_errors_() {
-  if (this->overflow_buf_.try_drain(this->socket_.get()) == -1) {
-    int err = errno;
-    if (err != EWOULDBLOCK && err != EAGAIN) {
-      this->state_ = State::FAILED;
-      HELPER_LOG("Socket write failed with errno %d", err);
-      return APIError::SOCKET_WRITE_FAILED;
+// Default implementation for loop - handles sending buffered data
+APIError APIFrameHelper::loop() {
+  if (this->tx_buf_count_ > 0) {
+    APIError err = try_send_tx_buf_();
+    if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
+      return err;
     }
   }
-  return APIError::OK;
+  return APIError::OK;  // Convert WOULD_BLOCK to OK to avoid connection termination
 }
 
-// Single-buffer write path: wraps in iovec and delegates.
-APIError APIFrameHelper::write_raw_buf_(const void *data, uint16_t len, ssize_t sent) {
-  struct iovec iov = {const_cast<void *>(data), len};
-  APIError err = this->write_raw_iov_(&iov, 1, len, sent);
-#ifdef HELPER_LOG_PACKETS
-  // Log after write/enqueue so re-entrant log sends can't corrupt data before it's sent
-  if (err == APIError::OK)
-    LOG_PACKET_SENDING(reinterpret_cast<const uint8_t *>(data), len);
-#endif
-  return err;
-}
-
-// Handles partial writes, errors, and overflow buffering.
-// Called when the inline fast path couldn't complete the write,
-// or directly from cold paths (handshake, error handling).
-APIError APIFrameHelper::write_raw_iov_(const struct iovec *iov, int iovcnt, uint16_t total_write_len, ssize_t sent) {
-  if (sent <= 0) {
-    if (sent == WRITE_NOT_ATTEMPTED) {
-      // Cold path: no write attempted yet, drain overflow and try
-      if (!this->overflow_buf_.empty()) {
-        APIError err = this->drain_overflow_and_handle_errors_();
-        if (err != APIError::OK)
-          return err;
-      }
-      if (this->overflow_buf_.empty()) {
-        sent = this->write_iov_to_socket_(iov, iovcnt);
-        if (sent == static_cast<ssize_t>(total_write_len))
-          return APIError::OK;
-        // Partial write or -1: fall through to error check / enqueue below
-      } else {
-        // Overflow backlog remains after drain; skip socket write, enqueue everything
-        sent = 0;
-      }
-    }
-    // WRITE_FAILED (-1): fast path or retry write returned -1, check errno
-    if (sent == WRITE_FAILED) {
-      int err = errno;
-      if (err != EWOULDBLOCK && err != EAGAIN) {
-        this->state_ = State::FAILED;
-        HELPER_LOG("Socket write failed with errno %d", err);
-        return APIError::SOCKET_WRITE_FAILED;
-      }
-      sent = 0;  // Treat WOULD_BLOCK as zero bytes sent
-    }
+// Common socket write error handling
+APIError APIFrameHelper::handle_socket_write_error_() {
+  if (errno == EWOULDBLOCK || errno == EAGAIN) {
+    return APIError::WOULD_BLOCK;
   }
+  HELPER_LOG("Socket write failed with errno %d", errno);
+  this->state_ = State::FAILED;
+  return APIError::SOCKET_WRITE_FAILED;
+}
 
-  // Full write completed (possible when called directly, not via write_raw_fast_buf_)
-  if (sent == static_cast<ssize_t>(total_write_len))
-    return APIError::OK;
-
-  // Queue unsent data into overflow buffer
-  if (!this->overflow_buf_.enqueue_iov(iov, iovcnt, total_write_len, static_cast<uint16_t>(sent))) {
-    HELPER_LOG("Overflow buffer full, dropping connection");
+// Helper method to buffer data from IOVs
+void APIFrameHelper::buffer_data_from_iov_(const struct iovec *iov, int iovcnt, uint16_t total_write_len,
+                                           uint16_t offset) {
+  // Check if queue is full
+  if (this->tx_buf_count_ >= API_MAX_SEND_QUEUE) {
+    HELPER_LOG("Send queue full (%u buffers), dropping connection", this->tx_buf_count_);
     this->state_ = State::FAILED;
-    return APIError::SOCKET_WRITE_FAILED;
+    return;
   }
-  return APIError::OK;
+
+  uint16_t buffer_size = total_write_len - offset;
+  auto &buffer = this->tx_buf_[this->tx_buf_tail_];
+  buffer = std::make_unique<SendBuffer>(SendBuffer{
+      .data = std::make_unique<uint8_t[]>(buffer_size),
+      .size = buffer_size,
+      .offset = 0,
+  });
+
+  uint16_t to_skip = offset;
+  uint16_t write_pos = 0;
+
+  for (int i = 0; i < iovcnt; i++) {
+    if (to_skip >= iov[i].iov_len) {
+      // Skip this entire segment
+      to_skip -= static_cast<uint16_t>(iov[i].iov_len);
+    } else {
+      // Include this segment (partially or fully)
+      const uint8_t *src = reinterpret_cast<uint8_t *>(iov[i].iov_base) + to_skip;
+      uint16_t len = static_cast<uint16_t>(iov[i].iov_len) - to_skip;
+      std::memcpy(buffer->data.get() + write_pos, src, len);
+      write_pos += len;
+      to_skip = 0;
+    }
+  }
+
+  // Update circular buffer tracking
+  this->tx_buf_tail_ = (this->tx_buf_tail_ + 1) % API_MAX_SEND_QUEUE;
+  this->tx_buf_count_++;
 }
 
-const char *APIFrameHelper::get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const {
-  if (this->socket_) {
-    this->socket_->getpeername_to(buf);
-  } else {
-    buf[0] = '\0';
+// This method writes data to socket or buffers it
+APIError APIFrameHelper::write_raw_(const struct iovec *iov, int iovcnt, uint16_t total_write_len) {
+  // Returns APIError::OK if successful (or would block, but data has been buffered)
+  // Returns APIError::SOCKET_WRITE_FAILED if socket write failed, and sets state to FAILED
+
+  if (iovcnt == 0)
+    return APIError::OK;  // Nothing to do, success
+
+#ifdef HELPER_LOG_PACKETS
+  for (int i = 0; i < iovcnt; i++) {
+    LOG_PACKET_SENDING(reinterpret_cast<uint8_t *>(iov[i].iov_base), iov[i].iov_len);
   }
-  return buf.data();
+#endif
+
+  // Try to send any existing buffered data first if there is any
+  if (this->tx_buf_count_ > 0) {
+    APIError send_result = try_send_tx_buf_();
+    // If real error occurred (not just WOULD_BLOCK), return it
+    if (send_result != APIError::OK && send_result != APIError::WOULD_BLOCK) {
+      return send_result;
+    }
+
+    // If there is still data in the buffer, we can't send, buffer
+    // the new data and return
+    if (this->tx_buf_count_ > 0) {
+      this->buffer_data_from_iov_(iov, iovcnt, total_write_len, 0);
+      return APIError::OK;  // Success, data buffered
+    }
+  }
+
+  // Try to send directly if no buffered data
+  // Optimize for single iovec case (common for plaintext API)
+  ssize_t sent =
+      (iovcnt == 1) ? this->socket_->write(iov[0].iov_base, iov[0].iov_len) : this->socket_->writev(iov, iovcnt);
+
+  if (sent == -1) {
+    APIError err = this->handle_socket_write_error_();
+    if (err == APIError::WOULD_BLOCK) {
+      // Socket would block, buffer the data
+      this->buffer_data_from_iov_(iov, iovcnt, total_write_len, 0);
+      return APIError::OK;  // Success, data buffered
+    }
+    return err;  // Socket write failed
+  } else if (static_cast<uint16_t>(sent) < total_write_len) {
+    // Partially sent, buffer the remaining data
+    this->buffer_data_from_iov_(iov, iovcnt, total_write_len, static_cast<uint16_t>(sent));
+  }
+
+  return APIError::OK;  // Success, all data sent or buffered
+}
+
+// Common implementation for trying to send buffered data
+// IMPORTANT: Caller MUST ensure tx_buf_count_ > 0 before calling this method
+APIError APIFrameHelper::try_send_tx_buf_() {
+  // Try to send from tx_buf - we assume it's not empty as it's the caller's responsibility to check
+  while (this->tx_buf_count_ > 0) {
+    // Get the first buffer in the queue
+    SendBuffer *front_buffer = this->tx_buf_[this->tx_buf_head_].get();
+
+    // Try to send the remaining data in this buffer
+    ssize_t sent = this->socket_->write(front_buffer->current_data(), front_buffer->remaining());
+
+    if (sent == -1) {
+      return this->handle_socket_write_error_();
+    } else if (sent == 0) {
+      // Nothing sent but not an error
+      return APIError::WOULD_BLOCK;
+    } else if (static_cast<uint16_t>(sent) < front_buffer->remaining()) {
+      // Partially sent, update offset
+      // Cast to ensure no overflow issues with uint16_t
+      front_buffer->offset += static_cast<uint16_t>(sent);
+      return APIError::WOULD_BLOCK;  // Stop processing more buffers if we couldn't send a complete buffer
+    } else {
+      // Buffer completely sent, remove it from the queue
+      this->tx_buf_[this->tx_buf_head_].reset();
+      this->tx_buf_head_ = (this->tx_buf_head_ + 1) % API_MAX_SEND_QUEUE;
+      this->tx_buf_count_--;
+      // Continue loop to try sending the next buffer
+    }
+  }
+
+  return APIError::OK;  // All buffers sent successfully
 }
 
 APIError APIFrameHelper::init_common_() {
@@ -191,6 +245,8 @@ APIError APIFrameHelper::init_common_() {
     HELPER_LOG("Bad state for init %d", (int) state_);
     return APIError::BAD_STATE;
   }
+  // Cache peername now while socket is valid - needed for error logging after socket failure
+  this->socket_->getpeername_to(this->client_peername_);
   int err = this->socket_->setblocking(false);
   if (err != 0) {
     state_ = State::FAILED;
@@ -210,12 +266,11 @@ APIError APIFrameHelper::init_common_() {
 
 APIError APIFrameHelper::handle_socket_read_result_(ssize_t received) {
   if (received == -1) {
-    const int err = errno;
-    if (err == EWOULDBLOCK || err == EAGAIN) {
+    if (errno == EWOULDBLOCK || errno == EAGAIN) {
       return APIError::WOULD_BLOCK;
     }
     state_ = State::FAILED;
-    HELPER_LOG("Socket read failed with errno %d", err);
+    HELPER_LOG("Socket read failed with errno %d", errno);
     return APIError::SOCKET_READ_FAILED;
   } else if (received == 0) {
     state_ = State::FAILED;

esphome/components/api/api_frame_helper.h

@@ -5,15 +5,13 @@
 #include <memory>
 #include <span>
 #include <utility>
+#include <vector>
 
 #include "esphome/core/defines.h"
 #ifdef USE_API
-#include "esphome/components/api/api_buffer.h"
-#include "esphome/components/api/api_overflow_buffer.h"
 #include "esphome/components/socket/socket.h"
 #include "esphome/core/application.h"
 #include "esphome/core/log.h"
-#include "proto.h"
 
 namespace esphome::api {
 
@@ -31,14 +29,12 @@ static constexpr uint16_t MAX_MESSAGE_SIZE = 8192;  // 8 KiB for ESP8266
 static constexpr uint16_t MAX_MESSAGE_SIZE = 32768;  // 32 KiB for ESP32 and other platforms
 #endif
 
-// Extra byte reserved in rx_buf_ beyond the message size so protobuf
-// StringRef fields can be null-terminated in-place after decode.
-static constexpr uint16_t RX_BUF_NULL_TERMINATOR = 1;
-
 // Maximum number of messages to batch in a single write operation
 // Must be >= MAX_INITIAL_PER_BATCH in api_connection.h (enforced by static_assert there)
 static constexpr size_t MAX_MESSAGES_PER_BATCH = 34;
 
+class ProtoWriteBuffer;
+
 // Max client name length (e.g., "Home Assistant 2026.1.0.dev0" = 28 chars)
 static constexpr size_t CLIENT_INFO_NAME_MAX_LEN = 32;
 
@@ -49,17 +45,12 @@ struct ReadPacketBuffer {
 };
 
 // Packed message info structure to minimize memory usage
-// Note: message_type is uint8_t — all current protobuf message types fit in 8 bits.
-// The noise wire format encodes types as 16-bit, but the high byte is always 0.
-// If message types ever exceed 255, this and encrypt_noise_message_ must be updated.
 struct MessageInfo {
   uint16_t offset;        // Offset in buffer where message starts
   uint16_t payload_size;  // Size of the message payload
   uint8_t message_type;   // Message type (0-255)
-  uint8_t header_size;    // Actual header size used (avoids recomputation in write path)
 
-  MessageInfo(uint8_t type, uint16_t off, uint16_t size, uint8_t hdr)
-      : offset(off), payload_size(size), message_type(type), header_size(hdr) {}
+  MessageInfo(uint8_t type, uint16_t off, uint16_t size) : offset(off), payload_size(size), message_type(type) {}
 };
 
 enum class APIError : uint16_t {
@@ -99,9 +90,8 @@ class APIFrameHelper {
 
   // Get client name (null-terminated)
   const char *get_client_name() const { return this->client_name_; }
-  // Get client peername/IP into caller-provided buffer (fetches on-demand from socket)
-  // Returns pointer to buf for convenience in printf-style calls
-  const char *get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const;
+  // Get client peername/IP (null-terminated, cached at init time for availability after socket failure)
+  const char *get_client_peername() const { return this->client_peername_; }
   // Set client name from buffer with length (truncates if needed)
   void set_client_name(const char *name, size_t len) {
     size_t copy_len = std::min(len, sizeof(this->client_name_) - 1);
@@ -110,13 +100,11 @@ class APIFrameHelper {
   }
   virtual ~APIFrameHelper() = default;
   virtual APIError init() = 0;
-  virtual APIError loop() = 0;
+  virtual APIError loop();
   virtual APIError read_packet(ReadPacketBuffer *buffer) = 0;
-  bool can_write_without_blocking() { return this->state_ == State::DATA && this->overflow_buf_.empty(); }
+  bool can_write_without_blocking() { return this->state_ == State::DATA && this->tx_buf_count_ == 0; }
   int getpeername(struct sockaddr *addr, socklen_t *addrlen) { return socket_->getpeername(addr, addrlen); }
   APIError close() {
-    if (state_ == State::CLOSED)
-      return APIError::OK;  // Already closed
     state_ = State::CLOSED;
     int err = this->socket_->close();
     if (err == -1)
@@ -139,66 +127,43 @@ class APIFrameHelper {
   //
   // For log messages: Use Nagle to coalesce multiple small log packets into
   // fewer larger packets, reducing WiFi overhead. However, we limit batching
-  // to avoid excessive LWIP buffer pressure on memory-constrained devices.
-  // LWIP's TCP_OVERSIZE option coalesces the data into shared pbufs, but
-  // holding data too long waiting for Nagle's timer causes buffer exhaustion
-  // and dropped messages.
+  // to 3 messages to avoid excessive LWIP buffer pressure on memory-constrained
+  // devices like ESP8266. LWIP's TCP_OVERSIZE option coalesces the data into
+  // shared pbufs, but holding data too long waiting for Nagle's timer causes
+  // buffer exhaustion and dropped messages.
   //
-  // ESP32 (TCP_SND_BUF=4×MSS+) / RP2040 (8×MSS) / LibreTiny (4×MSS): 4 logs per cycle
-  // ESP8266 (2×MSS): 3 logs per cycle (tightest buffers)
-  //
-  // Flow (ESP32/RP2040/LT): Log 1 (Nagle on) -> Log 2 -> Log 3 -> Log 4 (NODELAY, flush)
-  // Flow (ESP8266):         Log 1 (Nagle on) -> Log 2 -> Log 3 (NODELAY, flush all)
+  // Flow: Log 1 (Nagle on) -> Log 2 (Nagle on) -> Log 3 (NODELAY, flush all)
   //
   void set_nodelay_for_message(bool is_log_message) {
     if (!is_log_message) {
-      if (this->nodelay_counter_) {
+      if (this->nodelay_state_ != NODELAY_ON) {
         this->set_nodelay_raw_(true);
-        this->nodelay_counter_ = 0;
+        this->nodelay_state_ = NODELAY_ON;
       }
       return;
     }
-    // Log message: enable Nagle on first, flush after LOG_NAGLE_COUNT
-    if (!this->nodelay_counter_)
+
+    // Log messages 1-3: state transitions -1 -> 1 -> 2 -> -1 (flush on 3rd)
+    if (this->nodelay_state_ == NODELAY_ON) {
       this->set_nodelay_raw_(false);
-    if (++this->nodelay_counter_ > LOG_NAGLE_COUNT) {
+      this->nodelay_state_ = 1;
+    } else if (this->nodelay_state_ >= LOG_NAGLE_COUNT) {
       this->set_nodelay_raw_(true);
-      this->nodelay_counter_ = 0;
+      this->nodelay_state_ = NODELAY_ON;
+    } else {
+      this->nodelay_state_++;
     }
   }
-  // Write a single protobuf message - the hot path (87-100% of all writes).
-  // Caller must ensure state is DATA before calling.
   virtual APIError write_protobuf_packet(uint8_t type, ProtoWriteBuffer buffer) = 0;
-  // Write multiple protobuf messages in a single batched operation.
-  // Caller must ensure state is DATA and messages is not empty.
-  // messages contains (message_type, offset, length) for each message in the buffer.
-  // The buffer contains all messages with appropriate padding before each.
+  // Write multiple protobuf messages in a single operation
+  // messages contains (message_type, offset, length) for each message in the buffer
+  // The buffer contains all messages with appropriate padding before each
   virtual APIError write_protobuf_messages(ProtoWriteBuffer buffer, std::span<const MessageInfo> messages) = 0;
-  // Get the maximum frame header padding required by this protocol (worst case)
+  // Get the frame header padding required by this protocol
   uint8_t frame_header_padding() const { return frame_header_padding_; }
-  // Get the actual frame header size for a specific message.
-  // For noise: always returns frame_header_padding_ (fixed 7-byte header).
-  // For plaintext: computes actual size from varint lengths (3-6 bytes).
-  // Distinguishes protocols via frame_footer_size_ (noise always has a non-zero MAC
-  // footer, plaintext has footer=0). If a protocol with a plaintext footer is ever
-  // added, this should become a virtual method.
-  uint8_t frame_header_size(uint16_t payload_size, uint8_t message_type) const {
-#if defined(USE_API_NOISE) && defined(USE_API_PLAINTEXT)
-    return this->frame_footer_size_
-               ? this->frame_header_padding_
-               : static_cast<uint8_t>(1 + ProtoSize::varint16(payload_size) + ProtoSize::varint8(message_type));
-#elif defined(USE_API_NOISE)
-    return this->frame_header_padding_;
-#else  // USE_API_PLAINTEXT only
-    return static_cast<uint8_t>(1 + ProtoSize::varint16(payload_size) + ProtoSize::varint8(message_type));
-#endif
-  }
   // Get the frame footer size required by this protocol
   uint8_t frame_footer_size() const { return frame_footer_size_; }
-  // Check if socket has buffered data ready to read.
-  // Contract: callers must read until it would block (EAGAIN/EWOULDBLOCK)
-  // or track that they stopped early and retry without this check.
-  // See Socket::ready() for details.
+  // Check if socket has data ready to read
   bool is_socket_ready() const { return socket_ != nullptr && socket_->ready(); }
   // Release excess memory from internal buffers after initial sync
   void release_buffers() {
@@ -206,51 +171,37 @@ class APIFrameHelper {
     // rx_buf_len_ tracks bytes read so far; if non-zero, we're mid-frame
     // and clearing would lose partially received data.
     if (this->rx_buf_len_ == 0) {
-      this->rx_buf_.release();
+      // Use swap trick since shrink_to_fit() is non-binding and may be ignored
+      std::vector<uint8_t>().swap(this->rx_buf_);
     }
   }
 
  protected:
-  // Drain backlogged overflow data to the socket and handle errors.
-  // Called when overflow_buf_.empty() is false. Out-of-line to keep the
-  // fast path (empty check) inline at call sites.
-  // Returns OK for transient errors (WOULD_BLOCK), SOCKET_WRITE_FAILED for hard errors.
-  APIError drain_overflow_and_handle_errors_();
+  // Buffer containing data to be sent
+  struct SendBuffer {
+    std::unique_ptr<uint8_t[]> data;
+    uint16_t size{0};    // Total size of the buffer
+    uint16_t offset{0};  // Current offset within the buffer
 
-  // Sentinel values for the sent parameter in write_raw_ methods
-  static constexpr ssize_t WRITE_FAILED = -1;         // Fast path: write()/writev() returned -1
-  static constexpr ssize_t WRITE_NOT_ATTEMPTED = -2;  // Cold path: no write attempted yet
+    // Using uint16_t reduces memory usage since ESPHome API messages are limited to UINT16_MAX (65535) bytes
+    uint16_t remaining() const { return size - offset; }
+    const uint8_t *current_data() const { return data.get() + offset; }
+  };
 
-  // Dispatch to write() or writev() based on iovec count
-  inline ssize_t ESPHOME_ALWAYS_INLINE write_iov_to_socket_(const struct iovec *iov, int iovcnt) {
-    return (iovcnt == 1) ? this->socket_->write(iov[0].iov_base, iov[0].iov_len) : this->socket_->writev(iov, iovcnt);
-  }
+  // Common implementation for writing raw data to socket
+  APIError write_raw_(const struct iovec *iov, int iovcnt, uint16_t total_write_len);
 
-  // Inlined write methods — used by hot paths (write_protobuf_packet, write_protobuf_messages)
-  // These inline the fast path (overflow empty + full write) and tail-call the out-of-line
-  // slow path only on failure/partial write.
-  inline APIError ESPHOME_ALWAYS_INLINE write_raw_fast_buf_(const void *data, uint16_t len) {
-    if (this->overflow_buf_.empty()) [[likely]] {
-      ssize_t sent = this->socket_->write(data, len);
-      if (sent == static_cast<ssize_t>(len)) [[likely]] {
-#ifdef HELPER_LOG_PACKETS
-        this->log_packet_sending_(data, len);
-#endif
-        return APIError::OK;
-      }
-      // sent is -1 (WRITE_FAILED) or partial write count
-      return this->write_raw_buf_(data, len, sent);
-    }
-    return this->write_raw_buf_(data, len, WRITE_NOT_ATTEMPTED);
-  }
-  // Out-of-line write paths: handle partial writes, errors, overflow buffering
-  // sent: WRITE_NOT_ATTEMPTED (cold path), WRITE_FAILED (fast path write returned -1), or bytes sent (partial write)
-  APIError write_raw_buf_(const void *data, uint16_t len, ssize_t sent = WRITE_NOT_ATTEMPTED);
-  APIError write_raw_iov_(const struct iovec *iov, int iovcnt, uint16_t total_write_len,
-                          ssize_t sent = WRITE_NOT_ATTEMPTED);
-#ifdef HELPER_LOG_PACKETS
-  void log_packet_sending_(const void *data, uint16_t len);
-#endif
+  // Try to send data from the tx buffer
+  APIError try_send_tx_buf_();
+
+  // Helper method to buffer data from IOVs
+  void buffer_data_from_iov_(const struct iovec *iov, int iovcnt, uint16_t total_write_len, uint16_t offset);
+
+  // Common socket write error handling
+  APIError handle_socket_write_error_();
+  template<typename StateEnum>
+  APIError write_raw_(const struct iovec *iov, int iovcnt, socket::Socket *socket, std::vector<uint8_t> &tx_buf,
+                      const std::string &info, StateEnum &state, StateEnum failed_state);
 
   // Socket ownership (4 bytes on 32-bit, 8 bytes on 64-bit)
   std::unique_ptr<socket::Socket> socket_;
@@ -274,40 +225,29 @@ class APIFrameHelper {
     EXPLICIT_REJECT = 8,  // Noise only
   };
 
-  // Fast inline state check for read_packet/write_protobuf_messages hot path.
-  // Returns OK only in DATA state; maps CLOSED/FAILED to BAD_STATE and any
-  // other intermediate state to WOULD_BLOCK.
-  inline APIError ESPHOME_ALWAYS_INLINE check_data_state_() const {
-    if (this->state_ == State::DATA)
-      return APIError::OK;
-    if (this->state_ == State::CLOSED || this->state_ == State::FAILED)
-      return APIError::BAD_STATE;
-    return APIError::WOULD_BLOCK;
-  }
-
-  // Backlog for unsent data when TCP send buffer is full (rarely used in production)
-  APIOverflowBuffer overflow_buf_;
-  APIBuffer rx_buf_;
+  // Containers (size varies, but typically 12+ bytes on 32-bit)
+  std::array<std::unique_ptr<SendBuffer>, API_MAX_SEND_QUEUE> tx_buf_;
+  std::vector<uint8_t> rx_buf_;
 
   // Client name buffer - stores name from Hello message or initial peername
   char client_name_[CLIENT_INFO_NAME_MAX_LEN]{};
+  // Cached peername/IP address - captured at init time for availability after socket failure
+  char client_peername_[socket::SOCKADDR_STR_LEN]{};
 
   // Group smaller types together
   uint16_t rx_buf_len_ = 0;
   State state_{State::INITIALIZE};
   uint8_t frame_header_padding_{0};
   uint8_t frame_footer_size_{0};
-  // Nagle batching counter for log messages. 0 means NODELAY is enabled (immediate send).
-  // Values 1..LOG_NAGLE_COUNT count log messages in the current Nagle batch.
-  // After LOG_NAGLE_COUNT logs, we flush by re-enabling NODELAY and resetting to 0.
-  // ESP8266 has the tightest TCP send buffer (2×MSS) and needs conservative batching.
-  // ESP32 (4×MSS+), RP2040 (8×MSS), and LibreTiny (4×MSS) can coalesce more.
-#ifdef USE_ESP8266
-  static constexpr uint8_t LOG_NAGLE_COUNT = 2;
-#else
-  static constexpr uint8_t LOG_NAGLE_COUNT = 3;
-#endif
-  uint8_t nodelay_counter_{0};
+  uint8_t tx_buf_head_{0};
+  uint8_t tx_buf_tail_{0};
+  uint8_t tx_buf_count_{0};
+  // Nagle batching state for log messages. NODELAY_ON (-1) means NODELAY is enabled
+  // (immediate send). Values 1-2 count log messages in the current Nagle batch.
+  // After LOG_NAGLE_COUNT logs, we switch to NODELAY to flush and reset.
+  static constexpr int8_t NODELAY_ON = -1;
+  static constexpr int8_t LOG_NAGLE_COUNT = 2;
+  int8_t nodelay_state_{NODELAY_ON};
 
   // Internal helper to set TCP_NODELAY socket option
   void set_nodelay_raw_(bool enable) {

esphome/components/api/api_frame_helper_noise.cpp

@@ -19,7 +19,7 @@ namespace esphome::api {
 
 static const char *const TAG = "api.noise";
 #ifdef USE_ESP8266
-static constexpr char PROLOGUE_INIT[] PROGMEM = "NoiseAPIInit";
+static const char PROLOGUE_INIT[] PROGMEM = "NoiseAPIInit";
 #else
 static const char *const PROLOGUE_INIT = "NoiseAPIInit";
 #endif
@@ -29,12 +29,7 @@ static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif
@@ -47,8 +42,15 @@ static constexpr size_t API_MAX_LOG_BYTES = 168;
               format_hex_pretty_to(hex_buf_, (buffer).data(), \
                                    (buffer).size() < API_MAX_LOG_BYTES ? (buffer).size() : API_MAX_LOG_BYTES)); \
   } while (0)
+#define LOG_PACKET_SENDING(data, len) \
+  do { \
+    char hex_buf_[format_hex_pretty_size(API_MAX_LOG_BYTES)]; \
+    ESP_LOGVV(TAG, "Sending raw: %s", \
+              format_hex_pretty_to(hex_buf_, data, (len) < API_MAX_LOG_BYTES ? (len) : API_MAX_LOG_BYTES)); \
+  } while (0)
 #else
 #define LOG_PACKET_RECEIVED(buffer) ((void) 0)
+#define LOG_PACKET_SENDING(data, len) ((void) 0)
 #endif
 
 /// Convert a noise error code to a readable error
@@ -131,12 +133,10 @@ APIError APINoiseFrameHelper::handle_noise_error_(int err, const LogString *func
 
 /// Run through handshake messages (if in that phase)
 APIError APINoiseFrameHelper::loop() {
-  // Cache ready() outside the loop. On ESP8266 LWIP raw TCP, ready() returns false once
-  // the rx buffer is consumed. Re-checking each iteration would block handshake writes
-  // that must follow reads, deadlocking the handshake. state_action() will return
-  // WOULD_BLOCK when no more data is available to read.
-  bool socket_ready = this->socket_->ready();
-  while (state_ != State::DATA && socket_ready) {
+  // During handshake phase, process as many actions as possible until we can't progress
+  // socket_->ready() stays true until next main loop, but state_action() will return
+  // WOULD_BLOCK when no more data is available to read
+  while (state_ != State::DATA && this->socket_->ready()) {
     APIError err = state_action_();
     if (err == APIError::WOULD_BLOCK) {
       break;
@@ -146,10 +146,8 @@ APIError APINoiseFrameHelper::loop() {
     }
   }
 
-  if (!this->overflow_buf_.empty()) [[unlikely]] {
-    return this->drain_overflow_and_handle_errors_();
-  }
-  return APIError::OK;
+  // Use base class implementation for buffer sending
+  return APIFrameHelper::loop();
 }
 
 /** Read a packet into the rx_buf_.
@@ -189,20 +187,17 @@ APIError APINoiseFrameHelper::try_read_frame_() {
   uint16_t msg_size = (((uint16_t) rx_header_buf_[1]) << 8) | rx_header_buf_[2];
 
   // Check against size limits to prevent OOM: MAX_HANDSHAKE_SIZE for handshake, MAX_MESSAGE_SIZE for data
-  bool is_data = (state_ == State::DATA);
-  uint16_t limit = is_data ? MAX_MESSAGE_SIZE : MAX_HANDSHAKE_SIZE;
+  uint16_t limit = (state_ == State::DATA) ? MAX_MESSAGE_SIZE : MAX_HANDSHAKE_SIZE;
   if (msg_size > limit) {
     state_ = State::FAILED;
     HELPER_LOG("Bad packet: message size %u exceeds maximum %u", msg_size, limit);
-    return is_data ? APIError::BAD_DATA_PACKET : APIError::BAD_HANDSHAKE_PACKET_LEN;
+    return (state_ == State::DATA) ? APIError::BAD_DATA_PACKET : APIError::BAD_HANDSHAKE_PACKET_LEN;
   }
 
-  // Reserve space for body (+ null terminator in DATA state so protobuf
-  // StringRef fields can be safely null-terminated in-place after decode.
-  // During handshake, rx_buf_.size() is used in prologue construction, so
-  // the buffer must be exactly msg_size to avoid prologue mismatch.)
-  uint16_t alloc_size = msg_size + (is_data ? RX_BUF_NULL_TERMINATOR : 0);
-  this->rx_buf_.resize(alloc_size);
+  // Reserve space for body
+  if (this->rx_buf_.size() != msg_size) {
+    this->rx_buf_.resize(msg_size);
+  }
 
   if (rx_buf_len_ < msg_size) {
     // more data to read
@@ -237,144 +232,129 @@ APIError APINoiseFrameHelper::try_read_frame_() {
  * If an error occurred, returns that error. Only returns OK if the transport is ready for data
  * traffic.
  */
-// Split into per-state methods so the compiler doesn't allocate stack space
-// for all branches simultaneously. On RP2040 the core0 stack lives in a 4KB
-// scratch RAM bank; the Noise crypto path (curve25519) needs ~2KB+ of stack,
-// so every byte saved in the caller matters.
 APIError APINoiseFrameHelper::state_action_() {
-  switch (this->state_) {
-    case State::INITIALIZE:
-      HELPER_LOG("Bad state for method: %d", (int) this->state_);
-      return APIError::BAD_STATE;
-    case State::CLIENT_HELLO:
-      return this->state_action_client_hello_();
-    case State::SERVER_HELLO:
-      return this->state_action_server_hello_();
-    case State::HANDSHAKE:
-      return this->state_action_handshake_();
-    case State::CLOSED:
-    case State::FAILED:
-      return APIError::BAD_STATE;
-    default:
-      return APIError::OK;
-  }
-}
-APIError APINoiseFrameHelper::state_action_client_hello_() {
-  // waiting for client hello
-  APIError aerr = this->try_read_frame_();
-  if (aerr != APIError::OK) {
-    return handle_handshake_frame_error_(aerr);
-  }
-  // ignore contents, may be used in future for flags
-  // Resize for: existing prologue + 2 size bytes + frame data
-  size_t old_size = this->prologue_.size();
-  size_t rx_size = this->rx_buf_.size();
-  this->prologue_.resize(old_size + 2 + rx_size);
-  this->prologue_[old_size] = (uint8_t) (rx_size >> 8);
-  this->prologue_[old_size + 1] = (uint8_t) rx_size;
-  if (rx_size > 0) {
-    std::memcpy(this->prologue_.data() + old_size + 2, this->rx_buf_.data(), rx_size);
+  int err;
+  APIError aerr;
+  if (state_ == State::INITIALIZE) {
+    HELPER_LOG("Bad state for method: %d", (int) state_);
+    return APIError::BAD_STATE;
   }
+  if (state_ == State::CLIENT_HELLO) {
+    // waiting for client hello
+    aerr = this->try_read_frame_();
+    if (aerr != APIError::OK) {
+      return handle_handshake_frame_error_(aerr);
+    }
+    // ignore contents, may be used in future for flags
+    // Resize for: existing prologue + 2 size bytes + frame data
+    size_t old_size = this->prologue_.size();
+    this->prologue_.resize(old_size + 2 + this->rx_buf_.size());
+    this->prologue_[old_size] = (uint8_t) (this->rx_buf_.size() >> 8);
+    this->prologue_[old_size + 1] = (uint8_t) this->rx_buf_.size();
+    std::memcpy(this->prologue_.data() + old_size + 2, this->rx_buf_.data(), this->rx_buf_.size());
 
-  state_ = State::SERVER_HELLO;
+    state_ = State::SERVER_HELLO;
+  }
+  if (state_ == State::SERVER_HELLO) {
+    // send server hello
+    const std::string &name = App.get_name();
+    char mac[MAC_ADDRESS_BUFFER_SIZE];
+    get_mac_address_into_buffer(mac);
+
+    // Calculate positions and sizes
+    size_t name_len = name.size() + 1;  // including null terminator
+    size_t name_offset = 1;
+    size_t mac_offset = name_offset + name_len;
+    size_t total_size = 1 + name_len + MAC_ADDRESS_BUFFER_SIZE;
+
+    // 1 (proto) + name (max ESPHOME_DEVICE_NAME_MAX_LEN) + 1 (name null)
+    // + mac (MAC_ADDRESS_BUFFER_SIZE - 1) + 1 (mac null)
+    constexpr size_t max_msg_size = 1 + ESPHOME_DEVICE_NAME_MAX_LEN + 1 + MAC_ADDRESS_BUFFER_SIZE;
+    uint8_t msg[max_msg_size];
+
+    // chosen proto
+    msg[0] = 0x01;
+
+    // node name, terminated by null byte
+    std::memcpy(msg + name_offset, name.c_str(), name_len);
+    // node mac, terminated by null byte
+    std::memcpy(msg + mac_offset, mac, MAC_ADDRESS_BUFFER_SIZE);
+
+    aerr = write_frame_(msg, total_size);
+    if (aerr != APIError::OK)
+      return aerr;
+
+    // start handshake
+    aerr = init_handshake_();
+    if (aerr != APIError::OK)
+      return aerr;
+
+    state_ = State::HANDSHAKE;
+  }
+  if (state_ == State::HANDSHAKE) {
+    int action = noise_handshakestate_get_action(handshake_);
+    if (action == NOISE_ACTION_READ_MESSAGE) {
+      // waiting for handshake msg
+      aerr = this->try_read_frame_();
+      if (aerr != APIError::OK) {
+        return handle_handshake_frame_error_(aerr);
+      }
+
+      if (this->rx_buf_.empty()) {
+        send_explicit_handshake_reject_(LOG_STR("Empty handshake message"));
+        return APIError::BAD_HANDSHAKE_ERROR_BYTE;
+      } else if (this->rx_buf_[0] != 0x00) {
+        HELPER_LOG("Bad handshake error byte: %u", this->rx_buf_[0]);
+        send_explicit_handshake_reject_(LOG_STR("Bad handshake error byte"));
+        return APIError::BAD_HANDSHAKE_ERROR_BYTE;
+      }
+
+      NoiseBuffer mbuf;
+      noise_buffer_init(mbuf);
+      noise_buffer_set_input(mbuf, this->rx_buf_.data() + 1, this->rx_buf_.size() - 1);
+      err = noise_handshakestate_read_message(handshake_, &mbuf, nullptr);
+      if (err != 0) {
+        // Special handling for MAC failure
+        send_explicit_handshake_reject_(err == NOISE_ERROR_MAC_FAILURE ? LOG_STR("Handshake MAC failure")
+                                                                       : LOG_STR("Handshake error"));
+        return handle_noise_error_(err, LOG_STR("noise_handshakestate_read_message"),
+                                   APIError::HANDSHAKESTATE_READ_FAILED);
+      }
+
+      aerr = check_handshake_finished_();
+      if (aerr != APIError::OK)
+        return aerr;
+    } else if (action == NOISE_ACTION_WRITE_MESSAGE) {
+      uint8_t buffer[65];
+      NoiseBuffer mbuf;
+      noise_buffer_init(mbuf);
+      noise_buffer_set_output(mbuf, buffer + 1, sizeof(buffer) - 1);
+
+      err = noise_handshakestate_write_message(handshake_, &mbuf, nullptr);
+      APIError aerr_write = handle_noise_error_(err, LOG_STR("noise_handshakestate_write_message"),
+                                                APIError::HANDSHAKESTATE_WRITE_FAILED);
+      if (aerr_write != APIError::OK)
+        return aerr_write;
+      buffer[0] = 0x00;  // success
+
+      aerr = write_frame_(buffer, mbuf.size + 1);
+      if (aerr != APIError::OK)
+        return aerr;
+      aerr = check_handshake_finished_();
+      if (aerr != APIError::OK)
+        return aerr;
+    } else {
+      // bad state for action
+      state_ = State::FAILED;
+      HELPER_LOG("Bad action for handshake: %d", action);
+      return APIError::HANDSHAKESTATE_BAD_STATE;
+    }
+  }
+  if (state_ == State::CLOSED || state_ == State::FAILED) {
+    return APIError::BAD_STATE;
+  }
   return APIError::OK;
 }
-APIError APINoiseFrameHelper::state_action_server_hello_() {
-  // send server hello
-  const auto &name = App.get_name();
-  char mac[MAC_ADDRESS_BUFFER_SIZE];
-  get_mac_address_into_buffer(mac);
-
-  // Calculate positions and sizes
-  size_t name_len = name.size() + 1;  // including null terminator
-  size_t name_offset = 1;
-  size_t mac_offset = name_offset + name_len;
-  size_t total_size = 1 + name_len + MAC_ADDRESS_BUFFER_SIZE;
-
-  // 1 (proto) + name (max ESPHOME_DEVICE_NAME_MAX_LEN) + 1 (name null)
-  // + mac (MAC_ADDRESS_BUFFER_SIZE - 1) + 1 (mac null)
-  constexpr size_t max_msg_size = 1 + ESPHOME_DEVICE_NAME_MAX_LEN + 1 + MAC_ADDRESS_BUFFER_SIZE;
-  uint8_t msg[max_msg_size];
-
-  // chosen proto
-  msg[0] = 0x01;
-
-  // node name, terminated by null byte
-  std::memcpy(msg + name_offset, name.c_str(), name_len);
-  // node mac, terminated by null byte
-  std::memcpy(msg + mac_offset, mac, MAC_ADDRESS_BUFFER_SIZE);
-
-  APIError aerr = write_frame_(msg, total_size);
-  if (aerr != APIError::OK)
-    return aerr;
-
-  // start handshake
-  aerr = init_handshake_();
-  if (aerr != APIError::OK)
-    return aerr;
-
-  state_ = State::HANDSHAKE;
-  return APIError::OK;
-}
-APIError APINoiseFrameHelper::state_action_handshake_() {
-  int action = noise_handshakestate_get_action(this->handshake_);
-  if (action == NOISE_ACTION_READ_MESSAGE) {
-    return this->state_action_handshake_read_();
-  } else if (action == NOISE_ACTION_WRITE_MESSAGE) {
-    return this->state_action_handshake_write_();
-  }
-  // bad state for action
-  this->state_ = State::FAILED;
-  HELPER_LOG("Bad action for handshake: %d", action);
-  return APIError::HANDSHAKESTATE_BAD_STATE;
-}
-APIError APINoiseFrameHelper::state_action_handshake_read_() {
-  APIError aerr = this->try_read_frame_();
-  if (aerr != APIError::OK) {
-    return this->handle_handshake_frame_error_(aerr);
-  }
-
-  if (this->rx_buf_.empty()) {
-    this->send_explicit_handshake_reject_(LOG_STR("Empty handshake message"));
-    return APIError::BAD_HANDSHAKE_ERROR_BYTE;
-  } else if (this->rx_buf_[0] != 0x00) {
-    HELPER_LOG("Bad handshake error byte: %u", this->rx_buf_[0]);
-    this->send_explicit_handshake_reject_(LOG_STR("Bad handshake error byte"));
-    return APIError::BAD_HANDSHAKE_ERROR_BYTE;
-  }
-
-  NoiseBuffer mbuf;
-  noise_buffer_init(mbuf);
-  noise_buffer_set_input(mbuf, this->rx_buf_.data() + 1, this->rx_buf_.size() - 1);
-  int err = noise_handshakestate_read_message(this->handshake_, &mbuf, nullptr);
-  if (err != 0) {
-    // Special handling for MAC failure
-    this->send_explicit_handshake_reject_(err == NOISE_ERROR_MAC_FAILURE ? LOG_STR("Handshake MAC failure")
-                                                                         : LOG_STR("Handshake error"));
-    return this->handle_noise_error_(err, LOG_STR("noise_handshakestate_read_message"),
-                                     APIError::HANDSHAKESTATE_READ_FAILED);
-  }
-
-  return this->check_handshake_finished_();
-}
-APIError APINoiseFrameHelper::state_action_handshake_write_() {
-  uint8_t buffer[65];
-  NoiseBuffer mbuf;
-  noise_buffer_init(mbuf);
-  noise_buffer_set_output(mbuf, buffer + 1, sizeof(buffer) - 1);
-
-  int err = noise_handshakestate_write_message(this->handshake_, &mbuf, nullptr);
-  APIError aerr = this->handle_noise_error_(err, LOG_STR("noise_handshakestate_write_message"),
-                                            APIError::HANDSHAKESTATE_WRITE_FAILED);
-  if (aerr != APIError::OK)
-    return aerr;
-  buffer[0] = 0x00;  // success
-
-  aerr = this->write_frame_(buffer, mbuf.size + 1);
-  if (aerr != APIError::OK)
-    return aerr;
-  return this->check_handshake_finished_();
-}
 void APINoiseFrameHelper::send_explicit_handshake_reject_(const LogString *reason) {
   // Max reject message: "Bad handshake packet len" (24) + 1 (failure byte) = 25 bytes
   uint8_t data[32];
@@ -383,7 +363,6 @@ void APINoiseFrameHelper::send_explicit_handshake_reject_(const LogString *reaso
 #ifdef USE_STORE_LOG_STR_IN_FLASH
   // On ESP8266 with flash strings, we need to use PROGMEM-aware functions
   size_t reason_len = strlen_P(reinterpret_cast<PGM_P>(reason));
-  reason_len = std::min(reason_len, sizeof(data) - 1);
   if (reason_len > 0) {
     memcpy_P(data + 1, reinterpret_cast<PGM_P>(reason), reason_len);
   }
@@ -391,7 +370,6 @@ void APINoiseFrameHelper::send_explicit_handshake_reject_(const LogString *reaso
   // Normal memory access
   const char *reason_str = LOG_STR_ARG(reason);
   size_t reason_len = strlen(reason_str);
-  reason_len = std::min(reason_len, sizeof(data) - 1);
   if (reason_len > 0) {
     // NOLINTNEXTLINE(bugprone-not-null-terminated-result) - binary protocol, not a C string
     std::memcpy(data + 1, reason_str, reason_len);
@@ -407,9 +385,14 @@ void APINoiseFrameHelper::send_explicit_handshake_reject_(const LogString *reaso
   state_ = orig_state;
 }
 APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
-  APIError aerr = this->check_data_state_();
-  if (aerr != APIError::OK)
+  APIError aerr = this->state_action_();
+  if (aerr != APIError::OK) {
     return aerr;
+  }
+
+  if (this->state_ != State::DATA) {
+    return APIError::WOULD_BLOCK;
+  }
 
   aerr = this->try_read_frame_();
   if (aerr != APIError::OK)
@@ -417,18 +400,7 @@ APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
 
   NoiseBuffer mbuf;
   noise_buffer_init(mbuf);
-  // read_packet() must only be called in DATA state; the extra
-  // RX_BUF_NULL_TERMINATOR byte is only allocated in DATA state
-  // (see try_read_frame_), so calling this during handshake would
-  // underflow the size calculation below.
-#ifdef ESPHOME_DEBUG_API
-  assert(this->state_ == State::DATA);
-#endif
-  // rx_buf_ has RX_BUF_NULL_TERMINATOR extra byte for null termination
-  // (only added in DATA state — see try_read_frame_), so subtract it
-  // to get the actual encrypted data size for decryption.
-  size_t encrypted_size = this->rx_buf_.size() - RX_BUF_NULL_TERMINATOR;
-  noise_buffer_set_inout(mbuf, this->rx_buf_.data(), encrypted_size, encrypted_size);
+  noise_buffer_set_inout(mbuf, this->rx_buf_.data(), this->rx_buf_.size(), this->rx_buf_.size());
   int err = noise_cipherstate_decrypt(this->recv_cipher_, &mbuf);
   APIError decrypt_err =
       handle_noise_error_(err, LOG_STR("noise_cipherstate_decrypt"), APIError::CIPHERSTATE_DECRYPT_FAILED);
@@ -457,83 +429,78 @@ APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
   buffer->type = type;
   return APIError::OK;
 }
-// Encrypt a single noise message in place and return the encrypted frame length.
-// Returns APIError::OK on success.
-APIError APINoiseFrameHelper::encrypt_noise_message_(uint8_t *buf_start, uint16_t payload_size, uint8_t message_type,
-                                                     uint16_t &encrypted_len_out) {
-  // Write noise header
-  buf_start[0] = 0x01;  // indicator
-  // buf_start[1], buf_start[2] to be set after encryption
-
-  // Write message header (to be encrypted)
-  constexpr uint8_t msg_offset = 3;
-  buf_start[msg_offset] = static_cast<uint8_t>(message_type >> 8);      // type high byte
-  buf_start[msg_offset + 1] = static_cast<uint8_t>(message_type);       // type low byte
-  buf_start[msg_offset + 2] = static_cast<uint8_t>(payload_size >> 8);  // data_len high byte
-  buf_start[msg_offset + 3] = static_cast<uint8_t>(payload_size);       // data_len low byte
-  // payload data is already in the buffer starting at offset + 7
-
-  // Encrypt the message in place
-  NoiseBuffer mbuf;
-  noise_buffer_init(mbuf);
-  noise_buffer_set_inout(mbuf, buf_start + msg_offset, 4 + payload_size, 4 + payload_size + this->frame_footer_size_);
-
-  int err = noise_cipherstate_encrypt(this->send_cipher_, &mbuf);
-  APIError aerr =
-      this->handle_noise_error_(err, LOG_STR("noise_cipherstate_encrypt"), APIError::CIPHERSTATE_ENCRYPT_FAILED);
-  if (aerr != APIError::OK)
-    return aerr;
-
-  // Fill in the encrypted size
-  buf_start[1] = static_cast<uint8_t>(mbuf.size >> 8);
-  buf_start[2] = static_cast<uint8_t>(mbuf.size);
-
-  encrypted_len_out = static_cast<uint16_t>(3 + mbuf.size);  // indicator + size + encrypted data
-  return APIError::OK;
-}
-
 APIError APINoiseFrameHelper::write_protobuf_packet(uint8_t type, ProtoWriteBuffer buffer) {
-#ifdef ESPHOME_DEBUG_API
-  assert(this->state_ == State::DATA);
-#endif
-
-  // Resize buffer to include footer space for Noise MAC
-  if (this->frame_footer_size_)
-    buffer.get_buffer()->resize(buffer.get_buffer()->size() + this->frame_footer_size_);
-
-  uint16_t payload_size =
-      static_cast<uint16_t>(buffer.get_buffer()->size() - HEADER_PADDING - this->frame_footer_size_);
-  uint8_t *buf_start = buffer.get_buffer()->data();
-  uint16_t encrypted_len;
-  APIError aerr = this->encrypt_noise_message_(buf_start, payload_size, type, encrypted_len);
-  if (aerr != APIError::OK)
-    return aerr;
-  return this->write_raw_fast_buf_(buf_start, encrypted_len);
+  // Resize to include MAC space (required for Noise encryption)
+  buffer.get_buffer()->resize(buffer.get_buffer()->size() + frame_footer_size_);
+  MessageInfo msg{type, 0,
+                  static_cast<uint16_t>(buffer.get_buffer()->size() - frame_header_padding_ - frame_footer_size_)};
+  return write_protobuf_messages(buffer, std::span<const MessageInfo>(&msg, 1));
 }
 
 APIError APINoiseFrameHelper::write_protobuf_messages(ProtoWriteBuffer buffer, std::span<const MessageInfo> messages) {
-#ifdef ESPHOME_DEBUG_API
-  assert(this->state_ == State::DATA);
-  assert(!messages.empty());
-#endif
-
-  // Noise messages are already contiguous in the buffer:
-  // HEADER_PADDING (7) exactly matches the fixed header size, and
-  // footer space (16) is consumed by the encryption MAC.
-  uint8_t *buffer_data = buffer.get_buffer()->data();
-  uint8_t *write_start = buffer_data + messages[0].offset;
-  uint16_t total_write_len = 0;
-
-  for (const auto &msg : messages) {
-    uint8_t *buf_start = buffer_data + msg.offset;
-    uint16_t encrypted_len;
-    APIError aerr = this->encrypt_noise_message_(buf_start, msg.payload_size, msg.message_type, encrypted_len);
-    if (aerr != APIError::OK)
-      return aerr;
-    total_write_len += encrypted_len;
+  APIError aerr = state_action_();
+  if (aerr != APIError::OK) {
+    return aerr;
   }
 
-  return this->write_raw_fast_buf_(write_start, total_write_len);
+  if (state_ != State::DATA) {
+    return APIError::WOULD_BLOCK;
+  }
+
+  if (messages.empty()) {
+    return APIError::OK;
+  }
+
+  uint8_t *buffer_data = buffer.get_buffer()->data();
+
+  // Stack-allocated iovec array - no heap allocation
+  StaticVector<struct iovec, MAX_MESSAGES_PER_BATCH> iovs;
+  uint16_t total_write_len = 0;
+
+  // We need to encrypt each message in place
+  for (const auto &msg : messages) {
+    // The buffer already has padding at offset
+    uint8_t *buf_start = buffer_data + msg.offset;
+
+    // Write noise header
+    buf_start[0] = 0x01;  // indicator
+    // buf_start[1], buf_start[2] to be set after encryption
+
+    // Write message header (to be encrypted)
+    const uint8_t msg_offset = 3;
+    buf_start[msg_offset] = static_cast<uint8_t>(msg.message_type >> 8);      // type high byte
+    buf_start[msg_offset + 1] = static_cast<uint8_t>(msg.message_type);       // type low byte
+    buf_start[msg_offset + 2] = static_cast<uint8_t>(msg.payload_size >> 8);  // data_len high byte
+    buf_start[msg_offset + 3] = static_cast<uint8_t>(msg.payload_size);       // data_len low byte
+    // payload data is already in the buffer starting at offset + 7
+
+    // Make sure we have space for MAC
+    // The buffer should already have been sized appropriately
+
+    // Encrypt the message in place
+    NoiseBuffer mbuf;
+    noise_buffer_init(mbuf);
+    noise_buffer_set_inout(mbuf, buf_start + msg_offset, 4 + msg.payload_size,
+                           4 + msg.payload_size + frame_footer_size_);
+
+    int err = noise_cipherstate_encrypt(send_cipher_, &mbuf);
+    APIError aerr =
+        handle_noise_error_(err, LOG_STR("noise_cipherstate_encrypt"), APIError::CIPHERSTATE_ENCRYPT_FAILED);
+    if (aerr != APIError::OK)
+      return aerr;
+
+    // Fill in the encrypted size
+    buf_start[1] = static_cast<uint8_t>(mbuf.size >> 8);
+    buf_start[2] = static_cast<uint8_t>(mbuf.size);
+
+    // Add iovec for this encrypted message
+    size_t msg_len = static_cast<size_t>(3 + mbuf.size);  // indicator + size + encrypted data
+    iovs.push_back({buf_start, msg_len});
+    total_write_len += msg_len;
+  }
+
+  // Send all encrypted messages in one writev call
+  return this->write_raw_(iovs.data(), iovs.size(), total_write_len);
 }
 
 APIError APINoiseFrameHelper::write_frame_(const uint8_t *data, uint16_t len) {
@@ -542,16 +509,16 @@ APIError APINoiseFrameHelper::write_frame_(const uint8_t *data, uint16_t len) {
   header[1] = (uint8_t) (len >> 8);
   header[2] = (uint8_t) len;
 
-  if (len == 0) {
-    return this->write_raw_buf_(header, 3);
-  }
   struct iovec iov[2];
   iov[0].iov_base = header;
   iov[0].iov_len = 3;
+  if (len == 0) {
+    return this->write_raw_(iov, 1, 3);  // Just header
+  }
   iov[1].iov_base = const_cast<uint8_t *>(data);
   iov[1].iov_len = len;
 
-  return this->write_raw_iov_(iov, 2, 3 + len);
+  return this->write_raw_(iov, 2, 3 + len);  // Header + data
 }
 
 /** Initiate the data structures for the handshake.
@@ -589,7 +556,8 @@ APIError APINoiseFrameHelper::init_handshake_() {
   if (aerr != APIError::OK)
     return aerr;
   // set_prologue copies it into handshakestate, so we can get rid of it now
-  prologue_.release();
+  // Use swap idiom to actually release memory (= {} only clears size, not capacity)
+  std::vector<uint8_t>().swap(prologue_);
 
   err = noise_handshakestate_start(handshake_);
   aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_start"), APIError::HANDSHAKESTATE_SETUP_FAILED);
@@ -599,9 +567,7 @@ APIError APINoiseFrameHelper::init_handshake_() {
 }
 
 APIError APINoiseFrameHelper::check_handshake_finished_() {
-#ifdef ESPHOME_DEBUG_API
   assert(state_ == State::HANDSHAKE);
-#endif
 
   int action = noise_handshakestate_get_action(handshake_);
   if (action == NOISE_ACTION_READ_MESSAGE || action == NOISE_ACTION_WRITE_MESSAGE)
@@ -617,7 +583,7 @@ APIError APINoiseFrameHelper::check_handshake_finished_() {
   if (aerr != APIError::OK)
     return aerr;
 
-  this->frame_footer_size_ = noise_cipherstate_get_mac_length(send_cipher_);
+  frame_footer_size_ = noise_cipherstate_get_mac_length(send_cipher_);
 
   HELPER_LOG("Handshake complete!");
   noise_handshakestate_free(handshake_);

esphome/components/api/api_frame_helper_noise.h

@@ -9,16 +9,14 @@ namespace esphome::api {
 
 class APINoiseFrameHelper final : public APIFrameHelper {
  public:
-  // Noise header structure:
-  // Pos 0: indicator (0x01)
-  // Pos 1-2: encrypted payload size (16-bit big-endian)
-  // Pos 3-6: encrypted type (16-bit) + data_len (16-bit)
-  // Pos 7+: actual payload data
-  static constexpr uint8_t HEADER_PADDING = 1 + 2 + 2 + 2;  // indicator + size + type + data_len
-
   APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, APINoiseContext &ctx)
       : APIFrameHelper(std::move(socket)), ctx_(ctx) {
-    frame_header_padding_ = HEADER_PADDING;
+    // Noise header structure:
+    // Pos 0: indicator (0x01)
+    // Pos 1-2: encrypted payload size (16-bit big-endian)
+    // Pos 3-6: encrypted type (16-bit) + data_len (16-bit)
+    // Pos 7+: actual payload data
+    frame_header_padding_ = 7;
   }
   ~APINoiseFrameHelper() override;
   APIError init() override;
@@ -29,15 +27,8 @@ class APINoiseFrameHelper final : public APIFrameHelper {
 
  protected:
   APIError state_action_();
-  APIError state_action_client_hello_();
-  APIError state_action_server_hello_();
-  APIError state_action_handshake_();
-  APIError state_action_handshake_read_();
-  APIError state_action_handshake_write_();
   APIError try_read_frame_();
   APIError write_frame_(const uint8_t *data, uint16_t len);
-  APIError encrypt_noise_message_(uint8_t *buf_start, uint16_t payload_size, uint8_t message_type,
-                                  uint16_t &encrypted_len_out);
   APIError init_handshake_();
   APIError check_handshake_finished_();
   void send_explicit_handshake_reject_(const LogString *reason);
@@ -52,8 +43,8 @@ class APINoiseFrameHelper final : public APIFrameHelper {
   // Reference to noise context (4 bytes on 32-bit)
   APINoiseContext &ctx_;
 
-  // Buffer for noise handshake prologue (released after handshake)
-  APIBuffer prologue_;
+  // Vector (12 bytes on 32-bit)
+  std::vector<uint8_t> prologue_;
 
   // NoiseProtocolId (size depends on implementation)
   NoiseProtocolId nid_;

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -21,12 +21,7 @@ static const char *const TAG = "api.plaintext";
 static constexpr size_t API_MAX_LOG_BYTES = 168;
 
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERY_VERBOSE
-#define HELPER_LOG(msg, ...) \
-  do { \
-    char peername_buf[socket::SOCKADDR_STR_LEN]; \
-    this->get_peername_to(peername_buf); \
-    ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, peername_buf, ##__VA_ARGS__); \
-  } while (0)
+#define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s (%s): " msg, this->client_name_, this->client_peername_, ##__VA_ARGS__)
 #else
 #define HELPER_LOG(msg, ...) ((void) 0)
 #endif
@@ -39,8 +34,15 @@ static constexpr size_t API_MAX_LOG_BYTES = 168;
               format_hex_pretty_to(hex_buf_, (buffer).data(), \
                                    (buffer).size() < API_MAX_LOG_BYTES ? (buffer).size() : API_MAX_LOG_BYTES)); \
   } while (0)
+#define LOG_PACKET_SENDING(data, len) \
+  do { \
+    char hex_buf_[format_hex_pretty_size(API_MAX_LOG_BYTES)]; \
+    ESP_LOGVV(TAG, "Sending raw: %s", \
+              format_hex_pretty_to(hex_buf_, data, (len) < API_MAX_LOG_BYTES ? (len) : API_MAX_LOG_BYTES)); \
+  } while (0)
 #else
 #define LOG_PACKET_RECEIVED(buffer) ((void) 0)
+#define LOG_PACKET_SENDING(data, len) ((void) 0)
 #endif
 
 /// Initialize the frame helper, returns OK if successful.
@@ -57,10 +59,8 @@ APIError APIPlaintextFrameHelper::loop() {
   if (state_ != State::DATA) {
     return APIError::BAD_STATE;
   }
-  if (!this->overflow_buf_.empty()) [[unlikely]] {
-    return this->drain_overflow_and_handle_errors_();
-  }
-  return APIError::OK;
+  // Use base class implementation for buffer sending
+  return APIFrameHelper::loop();
 }
 
 /** Read a packet into the rx_buf_.
@@ -123,44 +123,45 @@ APIError APIPlaintextFrameHelper::try_read_frame_() {
 
     // Skip indicator byte at position 0
     uint8_t varint_pos = 1;
+    uint32_t consumed = 0;
 
-    // rx_header_buf_pos_ >= 3 and varint_pos == 1, so len >= 2
-    auto msg_size_varint = ProtoVarInt::parse_non_empty(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos);
+    auto msg_size_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos, &consumed);
     if (!msg_size_varint.has_value()) {
       // not enough data there yet
       continue;
     }
 
-    if (msg_size_varint.value > MAX_MESSAGE_SIZE) {
+    if (msg_size_varint->as_uint32() > MAX_MESSAGE_SIZE) {
       state_ = State::FAILED;
-      HELPER_LOG("Bad packet: message size %" PRIu32 " exceeds maximum %u",
-                 static_cast<uint32_t>(msg_size_varint.value), MAX_MESSAGE_SIZE);
+      HELPER_LOG("Bad packet: message size %" PRIu32 " exceeds maximum %u", msg_size_varint->as_uint32(),
+                 MAX_MESSAGE_SIZE);
       return APIError::BAD_DATA_PACKET;
     }
-    rx_header_parsed_len_ = static_cast<uint16_t>(msg_size_varint.value);
+    rx_header_parsed_len_ = msg_size_varint->as_uint16();
 
     // Move to next varint position
-    varint_pos += msg_size_varint.consumed;
+    varint_pos += consumed;
 
-    auto msg_type_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos);
+    auto msg_type_varint = ProtoVarInt::parse(&rx_header_buf_[varint_pos], rx_header_buf_pos_ - varint_pos, &consumed);
     if (!msg_type_varint.has_value()) {
       // not enough data there yet
       continue;
     }
-    if (msg_type_varint.value > std::numeric_limits<uint16_t>::max()) {
+    if (msg_type_varint->as_uint32() > std::numeric_limits<uint16_t>::max()) {
       state_ = State::FAILED;
-      HELPER_LOG("Bad packet: message type %" PRIu32 " exceeds maximum %u",
-                 static_cast<uint32_t>(msg_type_varint.value), std::numeric_limits<uint16_t>::max());
+      HELPER_LOG("Bad packet: message type %" PRIu32 " exceeds maximum %u", msg_type_varint->as_uint32(),
+                 std::numeric_limits<uint16_t>::max());
       return APIError::BAD_DATA_PACKET;
     }
-    rx_header_parsed_type_ = static_cast<uint16_t>(msg_type_varint.value);
+    rx_header_parsed_type_ = msg_type_varint->as_uint16();
     rx_header_parsed_ = true;
   }
   // header reading done
 
-  // Reserve space for body (+ null terminator so protobuf StringRef fields
-  // can be safely null-terminated in-place after decode)
-  this->rx_buf_.resize(this->rx_header_parsed_len_ + RX_BUF_NULL_TERMINATOR);
+  // Reserve space for body
+  if (this->rx_buf_.size() != this->rx_header_parsed_len_) {
+    this->rx_buf_.resize(this->rx_header_parsed_len_);
+  }
 
   if (rx_buf_len_ < rx_header_parsed_len_) {
     // more data to read
@@ -188,16 +189,17 @@ APIError APIPlaintextFrameHelper::try_read_frame_() {
 }
 
 APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
-  APIError aerr = this->check_data_state_();
-  if (aerr != APIError::OK)
-    return aerr;
+  if (this->state_ != State::DATA) {
+    return APIError::WOULD_BLOCK;
+  }
 
-  aerr = this->try_read_frame_();
+  APIError aerr = this->try_read_frame_();
   if (aerr != APIError::OK) {
     if (aerr == APIError::BAD_INDICATOR) {
       // Make sure to tell the remote that we don't
       // understand the indicator byte so it knows
       // we do not support it.
+      struct iovec iov[1];
       // The \x00 first byte is the marker for plaintext.
       //
       // The remote will know how to handle the indicator byte,
@@ -212,12 +214,14 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
                                                 "Bad indicator byte";
       char msg[INDICATOR_MSG_SIZE];
       memcpy_P(msg, MSG_PROGMEM, INDICATOR_MSG_SIZE);
-      this->write_raw_buf_(msg, INDICATOR_MSG_SIZE);
+      iov[0].iov_base = (void *) msg;
 #else
       static const char MSG[] = "\x00"
                                 "Bad indicator byte";
-      this->write_raw_buf_(MSG, INDICATOR_MSG_SIZE);
+      iov[0].iov_base = (void *) MSG;
 #endif
+      iov[0].iov_len = INDICATOR_MSG_SIZE;
+      this->write_raw_(iov, 1, INDICATOR_MSG_SIZE);
     }
     return aerr;
   }
@@ -227,101 +231,77 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
   buffer->type = this->rx_header_parsed_type_;
   return APIError::OK;
 }
-
-// Encode a 16-bit varint (1-3 bytes) using pre-computed length.
-ESPHOME_ALWAYS_INLINE static inline void encode_varint_16(uint16_t value, uint8_t varint_len, uint8_t *p) {
-  if (varint_len >= 2) {
-    *p++ = static_cast<uint8_t>(value | 0x80);
-    value >>= 7;
-    if (varint_len == 3) {
-      *p++ = static_cast<uint8_t>(value | 0x80);
-      value >>= 7;
-    }
-  }
-  *p = static_cast<uint8_t>(value);
-}
-
-// Encode an 8-bit varint (1-2 bytes) using pre-computed length.
-ESPHOME_ALWAYS_INLINE static inline void encode_varint_8(uint8_t value, uint8_t varint_len, uint8_t *p) {
-  if (varint_len == 2) {
-    *p++ = static_cast<uint8_t>(value | 0x80);
-    *p = static_cast<uint8_t>(value >> 7);
-  } else {
-    *p = value;
-  }
-}
-
-// Write plaintext header into pre-allocated padding before payload.
-// padding_size: bytes reserved before payload (HEADER_PADDING for first/single msg,
-//               actual header size for contiguous batch messages).
-// Returns the total header length (indicator + varints).
-ESPHOME_ALWAYS_INLINE static inline uint8_t write_plaintext_header(uint8_t *buf_start, uint16_t payload_size,
-                                                                   uint8_t message_type, uint8_t padding_size) {
-  uint8_t size_varint_len = ProtoSize::varint16(payload_size);
-  uint8_t type_varint_len = ProtoSize::varint8(message_type);
-  uint8_t total_header_len = 1 + size_varint_len + type_varint_len;
-
-  // The header is right-justified within the padding so it sits immediately before payload.
-  //
-  // Single/first message (padding_size = HEADER_PADDING = 6):
-  //   Example (small, header=3): [0-2] unused | [3] 0x00 | [4] size | [5] type | [6...] payload
-  //   Example (medium, header=4): [0-1] unused | [2] 0x00 | [3-4] size | [5] type | [6...] payload
-  //   Example (large, header=6):  [0] 0x00 | [1-3] size | [4-5] type | [6...] payload
-  //
-  // Batch messages 2+ (padding_size = actual header size, no unused bytes):
-  //   Example (small, header=3): [0] 0x00 | [1] size | [2] type | [3...] payload
-  //   Example (medium, header=4): [0] 0x00 | [1-2] size | [3] type | [4...] payload
-#ifdef ESPHOME_DEBUG_API
-  assert(padding_size >= total_header_len);
-#endif
-  uint32_t header_offset = padding_size - total_header_len;
-
-  // Write the plaintext header
-  buf_start[header_offset] = 0x00;  // indicator
-
-  // Encode varints directly into buffer using pre-computed lengths
-  encode_varint_16(payload_size, size_varint_len, buf_start + header_offset + 1);
-  encode_varint_8(message_type, type_varint_len, buf_start + header_offset + 1 + size_varint_len);
-
-  return total_header_len;
-}
-
 APIError APIPlaintextFrameHelper::write_protobuf_packet(uint8_t type, ProtoWriteBuffer buffer) {
-#ifdef ESPHOME_DEBUG_API
-  assert(this->state_ == State::DATA);
-#endif
-
-  uint16_t payload_size = static_cast<uint16_t>(buffer.get_buffer()->size() - HEADER_PADDING);
-  uint8_t *buffer_data = buffer.get_buffer()->data();
-  uint8_t header_len = write_plaintext_header(buffer_data, payload_size, type, HEADER_PADDING);
-  return this->write_raw_fast_buf_(buffer_data + HEADER_PADDING - header_len,
-                                   static_cast<uint16_t>(header_len + payload_size));
+  MessageInfo msg{type, 0, static_cast<uint16_t>(buffer.get_buffer()->size() - frame_header_padding_)};
+  return write_protobuf_messages(buffer, std::span<const MessageInfo>(&msg, 1));
 }
 
 APIError APIPlaintextFrameHelper::write_protobuf_messages(ProtoWriteBuffer buffer,
                                                           std::span<const MessageInfo> messages) {
-#ifdef ESPHOME_DEBUG_API
-  assert(this->state_ == State::DATA);
-  assert(!messages.empty());
-#endif
-  uint8_t *buffer_data = buffer.get_buffer()->data();
-
-  // First message has max padding (header_size = HEADER_PADDING), may have unused leading bytes.
-  // Subsequent messages were encoded with exact header sizes (header_size = actual header len).
-  // write_plaintext_header right-justifies the header within header_size bytes of padding.
-  const auto &first = messages[0];
-  uint8_t *first_start = buffer_data + first.offset;
-  uint8_t header_len = write_plaintext_header(first_start, first.payload_size, first.message_type, HEADER_PADDING);
-  uint8_t *write_start = first_start + HEADER_PADDING - header_len;
-  uint16_t total_len = header_len + first.payload_size;
-
-  for (size_t i = 1; i < messages.size(); i++) {
-    const auto &msg = messages[i];
-    header_len = write_plaintext_header(buffer_data + msg.offset, msg.payload_size, msg.message_type, msg.header_size);
-    total_len += header_len + msg.payload_size;
+  if (state_ != State::DATA) {
+    return APIError::BAD_STATE;
   }
 
-  return this->write_raw_fast_buf_(write_start, total_len);
+  if (messages.empty()) {
+    return APIError::OK;
+  }
+
+  uint8_t *buffer_data = buffer.get_buffer()->data();
+
+  // Stack-allocated iovec array - no heap allocation
+  StaticVector<struct iovec, MAX_MESSAGES_PER_BATCH> iovs;
+  uint16_t total_write_len = 0;
+
+  for (const auto &msg : messages) {
+    // Calculate varint sizes for header layout
+    uint8_t size_varint_len = api::ProtoSize::varint(static_cast<uint32_t>(msg.payload_size));
+    uint8_t type_varint_len = api::ProtoSize::varint(static_cast<uint32_t>(msg.message_type));
+    uint8_t total_header_len = 1 + size_varint_len + type_varint_len;
+
+    // Calculate where to start writing the header
+    // The header starts at the latest possible position to minimize unused padding
+    //
+    // Example 1 (small values): total_header_len = 3, header_offset = 6 - 3 = 3
+    // [0-2]  - Unused padding
+    // [3]    - 0x00 indicator byte
+    // [4]    - Payload size varint (1 byte, for sizes 0-127)
+    // [5]    - Message type varint (1 byte, for types 0-127)
+    // [6...] - Actual payload data
+    //
+    // Example 2 (medium values): total_header_len = 4, header_offset = 6 - 4 = 2
+    // [0-1]  - Unused padding
+    // [2]    - 0x00 indicator byte
+    // [3-4]  - Payload size varint (2 bytes, for sizes 128-16383)
+    // [5]    - Message type varint (1 byte, for types 0-127)
+    // [6...] - Actual payload data
+    //
+    // Example 3 (large values): total_header_len = 6, header_offset = 6 - 6 = 0
+    // [0]    - 0x00 indicator byte
+    // [1-3]  - Payload size varint (3 bytes, for sizes 16384-2097151)
+    // [4-5]  - Message type varint (2 bytes, for types 128-32767)
+    // [6...] - Actual payload data
+    //
+    // The message starts at offset + frame_header_padding_
+    // So we write the header starting at offset + frame_header_padding_ - total_header_len
+    uint8_t *buf_start = buffer_data + msg.offset;
+    uint32_t header_offset = frame_header_padding_ - total_header_len;
+
+    // Write the plaintext header
+    buf_start[header_offset] = 0x00;  // indicator
+
+    // Encode varints directly into buffer
+    ProtoVarInt(msg.payload_size).encode_to_buffer_unchecked(buf_start + header_offset + 1, size_varint_len);
+    ProtoVarInt(msg.message_type)
+        .encode_to_buffer_unchecked(buf_start + header_offset + 1 + size_varint_len, type_varint_len);
+
+    // Add iovec for this message (header + payload)
+    size_t msg_len = static_cast<size_t>(total_header_len + msg.payload_size);
+    iovs.push_back({buf_start + header_offset, msg_len});
+    total_write_len += msg_len;
+  }
+
+  // Send all messages in one writev call
+  return write_raw_(iovs.data(), iovs.size(), total_write_len);
 }
 
 }  // namespace esphome::api