Initial plan

.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 @@
-1b1ce6324c50c4595703c7df0a8a479b4fe84b71ff1a8793cce1a16f17a33324
+3258307fa645ba77307e502075c02c4d710e92c48250839db3526d36a9655444

.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@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
       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@10e90e3645eae34f1e60eeb005ba3a3d33f178e8 # v6.19.2
       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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
       with:
         path: venv
         # yamllint disable-line rule:line-length

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

@@ -4,7 +4,6 @@ module.exports = {
   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',
@@ -15,7 +14,6 @@ module.exports = {
     'chained-pr',
     'core',
     'small-pr',
-    'medium-pr',
     'dashboard',
     'github-actions',
     'by-code-owner',
@@ -29,7 +27,6 @@ module.exports = {
     'new-feature',
     'breaking-change',
     'developer-breaking-change',
-    'undocumented-api-change',
     'code-quality',
     'deprecated-component'
   ],

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

@@ -1,13 +1,5 @@
 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) {
@@ -28,13 +20,15 @@ async function detectMergeBranch(context) {
 // Strategy: Component and platform labeling
 async function detectComponentPlatforms(changedFiles, apiData) {
   const labels = new Set();
+  const componentRegex = /^esphome\/components\/([^\/]+)\//;
   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 componentMatch = file.match(componentRegex);
+    if (componentMatch) {
+      labels.add(`component: ${componentMatch[1]}`);
+    }
+
     const platformMatch = file.match(targetPlatformRegex);
     if (platformMatch) {
       labels.add(`platform: ${platformMatch[1]}`);
@@ -96,14 +90,20 @@ async function detectNewPlatforms(prFiles, apiData) {
 // Strategy: Core files detection
 async function detectCoreChanges(changedFiles) {
   const labels = new Set();
-  if (hasCoreChanges(changedFiles)) {
+  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(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, MEDIUM_PR_THRESHOLD, TOO_BIG_THRESHOLD) {
+async function detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, TOO_BIG_THRESHOLD) {
   const labels = new Set();
 
   if (totalChanges <= SMALL_PR_THRESHOLD) {
@@ -111,11 +111,6 @@ async function detectPRSize(prFiles, totalAdditions, totalDeletions, totalChange
     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);
@@ -136,33 +131,80 @@ async function detectPRSize(prFiles, totalAdditions, totalDeletions, totalChange
 // Strategy: Dashboard changes
 async function detectDashboardChanges(changedFiles) {
   const labels = new Set();
-  if (hasDashboardChanges(changedFiles)) {
+  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(changedFiles) {
   const labels = new Set();
-  if (hasGitHubActionsChanges(changedFiles)) {
+  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(github, context, changedFiles) {
   const labels = new Set();
+  const { owner, repo } = context.repo;
 
   try {
-    const codeownersPatterns = loadCodeowners();
+    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;
 
-    // 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');
+    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);
@@ -196,7 +238,6 @@ async function detectPRTemplateCheckboxes(context) {
     { 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' }
   ];
 
@@ -217,7 +258,7 @@ async function detectDeprecatedComponents(github, context, changedFiles) {
   const { owner, repo } = context.repo;
 
   // Compile regex once for better performance
-  const componentFileRegex = COMPONENT_REGEX;
+  const componentFileRegex = /^esphome\/components\/([^\/]+)\//;
 
   // Get files that are modified or added in components directory
   const componentFiles = changedFiles.filter(file => componentFileRegex.test(file));
@@ -235,20 +276,19 @@ async function detectDeprecatedComponents(github, context, changedFiles) {
     }
   }
 
-  // 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;
+  // Get PR head to fetch files from the PR branch
+  const prNumber = context.payload.pull_request.number;
 
   // Check each component's __init__.py for DEPRECATED_COMPONENT constant
   for (const component of components) {
     const initFile = `esphome/components/${component}/__init__.py`;
     try {
-      // Fetch file content from base branch using GitHub API
+      // Fetch file content from PR head using GitHub API
       const { data: fileData } = await github.rest.repos.getContent({
         owner,
         repo,
         path: initFile,
-        ref: baseRef
+        ref: `refs/pull/${prNumber}/head`
       });
 
       // Decode base64 content
@@ -281,24 +321,6 @@ async function detectDeprecatedComponents(github, context, changedFiles) {
   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();
@@ -347,6 +369,5 @@ module.exports = {
   detectTests,
   detectPRTemplateCheckboxes,
   detectDeprecatedComponents,
-  detectMaintainerAccess,
   detectRequirements
 };

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

@@ -12,10 +12,9 @@ const {
   detectTests,
   detectPRTemplateCheckboxes,
   detectDeprecatedComponents,
-  detectMaintainerAccess,
   detectRequirements
 } = require('./detectors');
-const { handleReviews, handleMaintainerAccessComment } = require('./reviews');
+const { handleReviews } = require('./reviews');
 const { applyLabels, removeOldLabels } = require('./labels');
 
 // Fetch API data
@@ -36,7 +35,6 @@ async function fetchApiData() {
 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);
@@ -115,22 +113,20 @@ module.exports = async ({ github, context }) => {
     codeOwnerLabels,
     testLabels,
     checkboxLabels,
-    deprecatedResult,
-    maintainerAccess
+    deprecatedResult
   ] = 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),
+    detectPRSize(prFiles, totalAdditions, totalDeletions, totalChanges, isMegaPR, SMALL_PR_THRESHOLD, TOO_BIG_THRESHOLD),
     detectDashboardChanges(changedFiles),
     detectGitHubActionsChanges(changedFiles),
     detectCodeOwner(github, context, changedFiles),
     detectTests(changedFiles),
     detectPRTemplateCheckboxes(context),
-    detectDeprecatedComponents(github, context, changedFiles),
-    detectMaintainerAccess(context)
+    detectDeprecatedComponents(github, context, changedFiles)
   ]);
 
   // Extract deprecated component info
@@ -180,11 +176,8 @@ module.exports = async ({ github, context }) => {
 
   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)
-  ]);
+  // Handle reviews
+  await handleReviews(github, context, finalLabels, originalLabelCount, deprecatedInfo, prFiles, totalAdditions, totalDeletions, MAX_LABELS, TOO_BIG_THRESHOLD);
 
   // Apply labels
   await applyLabels(github, context, finalLabels);

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

@@ -2,8 +2,7 @@ const {
   BOT_COMMENT_MARKER,
   CODEOWNERS_MARKER,
   TOO_BIG_MARKER,
-  DEPRECATED_COMPONENT_MARKER,
-  ORG_FORK_MARKER
+  DEPRECATED_COMPONENT_MARKER
 } = require('./constants');
 
 // Generate review messages
@@ -41,36 +40,16 @@ function generateReviewMessages(finalLabels, originalLabelCount, deprecatedInfo,
 
     let message = `${TOO_BIG_MARKER}\n### 📦 Pull Request Size\n\n`;
 
-    message +=
-      `Hey @${prAuthor}, thanks for the contribution! Just a heads up, ` +
-      `this PR is on the large side `;
-
     if (tooManyLabels && tooManyChanges) {
-      message +=
-        `(${nonTestChanges} line changes excluding tests, across ` +
-        `${originalLabelCount} different components/areas)`;
+      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests) and affects ${originalLabelCount} different components/areas.`;
     } else if (tooManyLabels) {
-      message +=
-        `(it touches ${originalLabelCount} different components/areas)`;
+      message += `This PR affects ${originalLabelCount} different components/areas.`;
     } else {
-      message += `(${nonTestChanges} line changes excluding tests)`;
+      message += `This PR is too large with ${nonTestChanges} line changes (excluding tests).`;
     }
 
-    message += `, which makes it harder for maintainers to review.\n\n`;
-    message +=
-      `Smaller, focused PRs tend to be reviewed much faster since they ` +
-      `fit into the short gaps between other maintainer work; large ones ` +
-      `often have to wait for a rare long uninterrupted block of time. ` +
-      `If you can break this up into smaller pieces that can be reviewed ` +
-      `independently, it will almost certainly land faster overall.\n\n`;
-    message +=
-      `Before putting more time in, it's also worth popping into ` +
-      `\`#devs\` on [Discord](https://esphome.io/chat) so we can help ` +
-      `you scope things and flag anything already in flight.\n\n`;
-    message +=
-      `For more details (including how to split the work up), see: ` +
-      `https://developers.esphome.io/contributing/submitting-your-work/` +
-      `#how-to-approach-large-submissions`;
+    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);
   }
@@ -157,63 +136,6 @@ async function handleReviews(github, context, finalLabels, originalLabelCount, d
   }
 }
 
-// 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
+  handleReviews
 };

.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
@@ -20,20 +19,20 @@ 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: |

.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

@@ -39,7 +39,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Generate cache-key
         id: cache-key
-        run: echo key="${{ hashFiles('requirements.txt', 'requirements_dev.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
+        run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
@@ -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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           # yamllint disable-line rule:line-length
@@ -58,7 +58,7 @@ jobs:
           python -m venv venv
           . venv/bin/activate
           python --version
-          pip install -r requirements.txt -r requirements_dev.txt -r requirements_test.txt pre-commit
+          pip install -r requirements.txt -r requirements_test.txt pre-commit
           pip install -e .
 
   pylint:
@@ -106,35 +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
-
-  import-time:
-    name: Check import esphome.__main__ time
-    runs-on: ubuntu-24.04
-    needs:
-      - common
-      - determine-jobs
-    if: needs.determine-jobs.outputs.import-time == '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: Check import time against budget and write waterfall HAR
-        run: |
-          . venv/bin/activate
-          script/check_import_time.py --check --har importtime.har
-      - name: Upload waterfall HAR
-        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
-        with:
-          name: import-time-waterfall
-          path: importtime.har
-          if-no-files-found: ignore
-          retention-days: 14
 
   pytest:
     name: Run pytest
@@ -182,12 +153,12 @@ 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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.restore-python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -199,12 +170,9 @@ 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 }}
-      import-time: ${{ steps.determine.outputs.import-time }}
       changed-components: ${{ steps.determine.outputs.changed-components }}
       changed-components-with-tests: ${{ steps.determine.outputs.changed-components-with-tests }}
       directly-changed-components-with-tests: ${{ steps.determine.outputs.directly-changed-components-with-tests }}
@@ -214,7 +182,6 @@ 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
@@ -227,7 +194,7 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Restore components graph cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: .temp/components_graph.json
           key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
@@ -243,12 +210,9 @@ 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')" >> $GITHUB_OUTPUT
-          echo "import-time=$(echo "$output" | jq -r '.import_time')" >> $GITHUB_OUTPUT
           echo "changed-components=$(echo "$output" | jq -c '.changed_components')" >> $GITHUB_OUTPUT
           echo "changed-components-with-tests=$(echo "$output" | jq -c '.changed_components_with_tests')" >> $GITHUB_OUTPUT
           echo "directly-changed-components-with-tests=$(echo "$output" | jq -c '.directly_changed_components_with_tests')" >> $GITHUB_OUTPUT
@@ -258,10 +222,9 @@ jobs:
           echo "cpp-unit-tests-run-all=$(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')" >> $GITHUB_OUTPUT
       - name: Save components graph cache
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: .temp/components_graph.json
           key: components-graph-${{ hashFiles('esphome/components/**/*.py') }}
@@ -283,7 +246,7 @@ jobs:
           python-version: "3.13"
       - name: Restore Python virtual environment
         id: cache-venv
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: venv
           key: ${{ runner.os }}-${{ steps.python.outputs.python-version }}-venv-${{ needs.common.outputs.cache-key }}
@@ -298,20 +261,9 @@ 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
@@ -340,40 +292,6 @@ 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@c381be0bfd20e844fb45594f6aa182ffcd94545c # v4.15.0
-        with:
-          run: ${{ steps.build.outputs.binary }}
-          mode: simulation
-
   clang-tidy-single:
     name: ${{ matrix.name }}
     runs-on: ubuntu-24.04
@@ -417,14 +335,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-${{ matrix.pio_cache_key }}-${{ hashFiles('platformio.ini') }}
@@ -496,14 +414,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
@@ -585,14 +503,14 @@ jobs:
 
       - name: Cache platformio
         if: github.ref == 'refs/heads/dev'
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-tidyesp32-${{ hashFiles('platformio.ini') }}
@@ -753,7 +671,7 @@ 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()
 
@@ -768,7 +686,7 @@ 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
@@ -787,39 +705,10 @@ 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)
@@ -846,14 +735,14 @@ 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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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."
@@ -863,21 +752,21 @@ 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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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
@@ -898,8 +787,7 @@ jobs:
           python script/test_build_components.py \
             -e compile \
             -c "$component_list" \
-            -t "$platform" \
-            --base-only 2>&1 | \
+            -t "$platform" 2>&1 | \
             tee /dev/stderr | \
             python script/ci_memory_impact_extract.py \
               --output-env \
@@ -912,15 +800,15 @@ jobs:
             --platform "$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@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         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)
@@ -934,7 +822,7 @@ 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
@@ -960,7 +848,7 @@ jobs:
           python-version: ${{ env.DEFAULT_PYTHON }}
           cache-key: ${{ needs.common.outputs.cache-key }}
       - name: Cache platformio
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
         with:
           path: ~/.platformio
           key: platformio-memory-${{ fromJSON(needs.determine-jobs.outputs.memory_impact).platform }}-${{ hashFiles('platformio.ini') }}
@@ -985,8 +873,7 @@ jobs:
           python script/test_build_components.py \
             -e compile \
             -c "$component_list" \
-            -t "$platform" \
-            --base-only 2>&1 | \
+            -t "$platform" 2>&1 | \
             tee /dev/stderr | \
             python script/ci_memory_impact_extract.py \
               --output-env \
@@ -999,7 +886,7 @@ 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
@@ -1029,13 +916,13 @@ 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/close-pr-from-fork-default-branch.yml

@@ -1,72 +0,0 @@
-name: Close PR From Fork Default Branch
-
-on:
-  # pull_request_target is required so we have permission to comment and close PRs from forks.
-  pull_request_target:
-    types: [opened, reopened]
-
-permissions:
-  pull-requests: write
-  issues: write
-
-jobs:
-  close:
-    name: Close PR opened from fork's default branch
-    runs-on: ubuntu-latest
-    if: >-
-      github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
-      && github.event.pull_request.head.ref == github.event.repository.default_branch
-    steps:
-      - uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
-        with:
-          script: |
-            const { owner, repo } = context.repo;
-            const prNumber = context.payload.pull_request.number;
-            const author = context.payload.pull_request.user.login;
-            const defaultBranch = context.payload.repository.default_branch;
-            const headRepo = context.payload.pull_request.head.repo.full_name;
-
-            const body = [
-              `Hi @${author}, thanks for opening a pull request! :tada:`,
-              ``,
-              `It looks like this PR was opened from the \`${defaultBranch}\` branch of your fork (\`${headRepo}\`), which is the same name as this repository's default branch. Working directly on \`${defaultBranch}\` in your fork causes a few problems:`,
-              ``,
-              `- Your fork's \`${defaultBranch}\` branch will permanently diverge from \`esphome/esphome:${defaultBranch}\`, making it hard to keep your fork up to date.`,
-              `- Any additional commits you push to \`${defaultBranch}\` will be added to this PR, so you can't easily work on multiple changes at once.`,
-              `- Pushing maintainer fixes to your branch is awkward, since it means committing directly to your fork's default branch.`,
-              `- It makes local collaboration painful — \`${defaultBranch}\` in a checkout becomes ambiguous between upstream and your fork, and maintainers end up with naming collisions when fetching your branch.`,
-              ``,
-              `Please re-open this as a new PR from a dedicated feature branch. The usual flow looks like:`,
-              ``,
-              `\`\`\`bash`,
-              `# Make sure your fork's ${defaultBranch} is up to date with upstream`,
-              `git remote add upstream https://github.com/${owner}/${repo}.git  # if you haven't already`,
-              `git fetch upstream`,
-              `git checkout ${defaultBranch}`,
-              `git reset --hard upstream/${defaultBranch}`,
-              `git push --force-with-lease origin ${defaultBranch}`,
-              ``,
-              `# Create a new branch for your change and cherry-pick / re-apply your commits there`,
-              `git checkout -b my-feature-branch upstream/${defaultBranch}`,
-              `# ...re-apply your changes, then:`,
-              `git push origin my-feature-branch`,
-              `\`\`\``,
-              ``,
-              `Then open a new pull request from \`my-feature-branch\` into \`${owner}/${repo}:${defaultBranch}\`.`,
-              ``,
-              `Closing this PR for now — sorry for the friction, and thanks again for contributing! :heart:`,
-            ].join('\n');
-
-            await github.rest.issues.createComment({
-              owner,
-              repo,
-              issue_number: prNumber,
-              body,
-            });
-
-            await github.rest.pulls.update({
-              owner,
-              repo,
-              pull_number: prNumber,
-              state: 'closed',
-            });

.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@9e907b5e64f6b83e7804b09294d44122997950d6 # v4.32.3
         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@9e907b5e64f6b83e7804b09294d44122997950d6 # v4.32.3
         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@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         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@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         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@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         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@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
         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/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>

.gitignore

@@ -146,6 +146,5 @@ sdkconfig.*
 
 /components
 /managed_components
-/dependencies.lock
 
 api-docs/

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.15.12
+    rev: v0.15.1
     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

@@ -54,9 +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/audio_http/* @kahrendt
 esphome/components/axs15231/* @clydebarrow
 esphome/components/b_parasite/* @rbaron
 esphome/components/ballu/* @bazuchan
@@ -93,7 +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
@@ -134,7 +130,6 @@ 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
@@ -143,13 +138,12 @@ 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
@@ -219,8 +213,6 @@ 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
@@ -248,6 +240,7 @@ 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
@@ -322,7 +315,6 @@ 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
@@ -333,7 +325,6 @@ 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
@@ -347,7 +338,6 @@ esphome/components/modbus_controller/select/* @martgras @stegm
 esphome/components/modbus_controller/sensor/* @martgras
 esphome/components/modbus_controller/switch/* @martgras
 esphome/components/modbus_controller/text_sensor/* @martgras
-esphome/components/modbus_server/* @exciton
 esphome/components/mopeka_ble/* @Fabian-Schmidt @spbrogan
 esphome/components/mopeka_pro_check/* @spbrogan
 esphome/components/mopeka_std_check/* @Fabian-Schmidt
@@ -405,7 +395,6 @@ esphome/components/qmp6988/* @andrewpc
 esphome/components/qr_code/* @wjtje
 esphome/components/qspi_dbi/* @clydebarrow
 esphome/components/qwiic_pir/* @kahrendt
-esphome/components/radio_frequency/* @kbx81
 esphome/components/radon_eye_ble/* @jeffeb3
 esphome/components/radon_eye_rd200/* @jeffeb3
 esphome/components/rc522/* @glmnet
@@ -417,12 +406,11 @@ 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/rtttl/* @glmnet
 esphome/components/runtime_image/* @clydebarrow @guillempages @kahrendt
 esphome/components/runtime_stats/* @bdraco
 esphome/components/rx8130/* @beormund
@@ -440,15 +428,8 @@ 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/sendspin/* @kahrendt
-esphome/components/sendspin/media_player/* @kahrendt
-esphome/components/sendspin/media_source/* @kahrendt
-esphome/components/sendspin/sensor/* @kahrendt
-esphome/components/sendspin/text_sensor/* @kahrendt
 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
@@ -469,12 +450,8 @@ 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
@@ -605,8 +582,7 @@ 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/* @luar123 @tomaszduda23
+esphome/components/zigbee/* @tomaszduda23
 esphome/components/zio_ultrasonic/* @kahrendt
 esphome/components/zwave_proxy/* @kbx81

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         = 2026.3.0-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

MANIFEST.in

@@ -4,5 +4,4 @@ include requirements.txt
 recursive-include esphome *.yaml
 recursive-include esphome *.cpp *.h *.tcc *.c
 recursive-include esphome *.py.script
-recursive-include esphome *.jinja
 recursive-include esphome LICENSE.txt

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>

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,
@@ -39,7 +35,6 @@ from esphome.const import (
     CONF_MDNS,
     CONF_MQTT,
     CONF_NAME,
-    CONF_NAME_ADD_MAC_SUFFIX,
     CONF_OTA,
     CONF_PASSWORD,
     CONF_PLATFORM,
@@ -48,9 +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,
@@ -62,40 +55,18 @@ 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,
     safe_print,
 )
-from esphome.zeroconf import discover_mdns_devices
 
 _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(
     {
@@ -191,7 +162,6 @@ class PortType(StrEnum):
     NETWORK = "NETWORK"
     MQTT = "MQTT"
     MQTTIP = "MQTTIP"
-    BOOTSEL = "BOOTSEL"
 
 
 # Magic MQTT port types that require special handling
@@ -206,64 +176,6 @@ def _resolve_with_cache(address: str, purpose: Purpose) -> list[str]:
     return [address]
 
 
-def _populate_mdns_cache(hosts_to_addresses: dict[str, list[str]]) -> None:
-    """Store discovered ``host -> [ips]`` entries in ``CORE.address_cache``.
-
-    Ensures ``CORE.address_cache`` exists, then records each mDNS hostname so
-    the downstream resolution path (``resolve_ip_address``) can skip opening a
-    second Zeroconf client.
-    """
-    from esphome.address_cache import AddressCache
-
-    if CORE.address_cache is None:
-        CORE.address_cache = AddressCache()
-    for host, addresses in hosts_to_addresses.items():
-        if addresses:
-            _LOGGER.debug("Caching mDNS result %s -> %s", host, addresses)
-        CORE.address_cache.add_mdns_addresses(host, addresses)
-
-
-def _discover_mac_suffix_devices() -> list[str] | None:
-    """Discover ``<name>-<mac>.local`` devices and cache their IPs.
-
-    Returns:
-        - ``None`` when discovery isn't applicable (``name_add_mac_suffix`` off,
-          mDNS disabled, or ``CORE.address`` is already an IP). Callers should
-          then fall back to whatever default OTA address they normally use.
-        - ``[]`` when discovery ran but found nothing. Callers should NOT fall
-          back to the base name: with ``name_add_mac_suffix`` enabled, the base
-          name by definition doesn't exist on the network.
-        - A non-empty sorted list of ``.local`` hostnames on success.
-
-    Populates ``CORE.address_cache`` so downstream resolution (``espota2`` or
-    ``aioesphomeapi`` via :func:`_resolve_network_devices`) reuses the IPs we
-    already have without opening a second Zeroconf client.
-    """
-    if not (has_name_add_mac_suffix() and has_mdns() and has_non_ip_address()):
-        return None
-    _LOGGER.info("Discovering devices...")
-    if not (discovered := discover_mdns_devices(CORE.name)):
-        _LOGGER.warning(
-            "No devices matching '%s-<mac>.local' were discovered.", CORE.name
-        )
-        return []
-    _populate_mdns_cache(discovered)
-    return list(discovered)
-
-
-def _ota_hostnames_for_default(purpose: Purpose) -> list[str]:
-    """Return OTA hostname(s) for the ``--device OTA`` / default-resolve path.
-
-    When ``name_add_mac_suffix`` is enabled, returns discovered
-    ``<name>-<mac>.local`` hostnames (possibly empty — in which case the
-    caller should not fall back to the base name). Otherwise falls back to
-    the cache-resolved ``CORE.address``.
-    """
-    if (discovered := _discover_mac_suffix_devices()) is not None:
-        return discovered
-    return _resolve_with_cache(CORE.address, purpose)
-
-
 def choose_upload_log_host(
     default: list[str] | str | None,
     check_default: str | None,
@@ -302,14 +214,14 @@ def choose_upload_log_host(
                         resolved.append("MQTT")
 
                     if has_api() and has_non_ip_address() and has_resolvable_address():
-                        resolved.extend(_ota_hostnames_for_default(purpose))
+                        resolved.extend(_resolve_with_cache(CORE.address, purpose))
 
                 elif purpose == Purpose.UPLOADING:
                     if has_ota() and has_mqtt_ip_lookup():
                         resolved.append("MQTTIP")
 
                     if has_ota() and has_non_ip_address() and has_resolvable_address():
-                        resolved.extend(_ota_hostnames_for_default(purpose))
+                        resolved.extend(_resolve_with_cache(CORE.address, purpose))
             else:
                 resolved.append(device)
         if not resolved:
@@ -328,61 +240,22 @@ 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
-
-    def add_ota_options() -> None:
-        """Add OTA options, using mDNS discovery if name_add_mac_suffix is enabled."""
-        if (discovered := _discover_mac_suffix_devices()) is not None:
-            # Discovery was applicable. Use whatever we found — on empty,
-            # intentionally skip the base-name fallback since with
-            # name_add_mac_suffix on, the base name doesn't exist on the net.
-            for host in discovered:
-                options.append((f"Over The Air ({host})", host))
-        elif has_resolvable_address():
-            options.append((f"Over The Air ({CORE.address})", CORE.address))
-        if has_mqtt_ip_lookup():
-            options.append(("Over The Air (MQTT IP lookup)", "MQTTIP"))
-
     if purpose == Purpose.LOGGING:
         if has_mqtt_logging():
             mqtt_config = CORE.config[CONF_MQTT]
             options.append((f"MQTT ({mqtt_config[CONF_BROKER]})", "MQTT"))
 
         if has_api():
-            add_ota_options()
+            if has_resolvable_address():
+                options.append((f"Over The Air ({CORE.address})", CORE.address))
+            if has_mqtt_ip_lookup():
+                options.append(("Over The Air (MQTT IP lookup)", "MQTTIP"))
 
     elif purpose == Purpose.UPLOADING and has_ota():
-        add_ota_options()
-
-    # 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 has_resolvable_address():
+            options.append((f"Over The Air ({CORE.address})", CORE.address))
+        if has_mqtt_ip_lookup():
+            options.append(("Over The Air (MQTT IP lookup)", "MQTTIP"))
 
     if check_default is not None and check_default in [opt[1] for opt in options]:
         return [check_default]
@@ -474,17 +347,7 @@ def has_resolvable_address() -> bool:
     return not CORE.address.endswith(".local")
 
 
-def has_name_add_mac_suffix() -> bool:
-    """Check if name_add_mac_suffix is enabled in the config."""
-    if CORE.config is None:
-        return False
-    esphome_config = CORE.config.get(CONF_ESPHOME, {})
-    return esphome_config.get(CONF_NAME_ADD_MAC_SUFFIX, False)
-
-
-def mqtt_get_ip(
-    config: ConfigType, username: str, password: str, client_id: str
-) -> list[str]:
+def mqtt_get_ip(config: ConfigType, username: str, password: str, client_id: str):
     from esphome import mqtt
 
     return mqtt.get_esphome_device_ip(config, username, password, client_id)
@@ -497,9 +360,6 @@ def _resolve_network_devices(
 
     This function filters the devices list to:
     - Replace MQTT/MQTTIP magic strings with actual IP addresses via MQTT lookup
-    - Expand hostnames that are already in ``CORE.address_cache`` to their
-      cached IPs so downstream code (e.g. aioesphomeapi) doesn't open a second
-      Zeroconf client to resolve them
     - Deduplicate addresses while preserving order
     - Only resolve MQTT once even if multiple MQTT strings are present
     - If MQTT resolution fails, log a warning and continue with other devices
@@ -524,29 +384,13 @@ def _resolve_network_devices(
                     mqtt_ips = mqtt_get_ip(
                         config, args.username, args.password, args.client_id
                     )
-                    # pylint can't infer mqtt_get_ip's return through its
-                    # lazy ``from esphome import mqtt`` import, so it flags
-                    # the genexpr below.
-                    network_devices.extend(
-                        addr
-                        for addr in mqtt_ips  # pylint: disable=not-an-iterable
-                        if addr not in network_devices
-                    )
+                    network_devices.extend(mqtt_ips)
                 except EsphomeError as err:
                     _LOGGER.warning(
                         "MQTT IP discovery failed (%s), will try other devices if available",
                         err,
                     )
                 mqtt_resolved = True
-            continue
-
-        # If the hostname is already in the address cache (e.g. populated by
-        # mDNS discovery), substitute the cached IPs so aioesphomeapi doesn't
-        # open its own Zeroconf to re-resolve it.
-        if CORE.address_cache and (cached := CORE.address_cache.get_addresses(device)):
-            network_devices.extend(
-                addr for addr in cached if addr not in network_devices
-            )
         elif device not in network_devices:
             # Regular network address or IP - add if not already present
             network_devices.append(device)
@@ -559,13 +403,10 @@ 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":
@@ -590,14 +431,6 @@ 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
@@ -639,14 +472,9 @@ 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
@@ -786,47 +614,6 @@ 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:
@@ -846,15 +633,8 @@ 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:
@@ -862,14 +642,6 @@ 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",
@@ -894,13 +666,9 @@ 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:
@@ -913,140 +681,15 @@ 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
@@ -1076,15 +719,7 @@ 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
@@ -1138,7 +773,6 @@ 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)
 
@@ -1149,11 +783,7 @@ 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
@@ -1186,7 +816,7 @@ 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)
@@ -1281,9 +911,6 @@ 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.")
@@ -1294,19 +921,6 @@ 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,
@@ -1330,6 +944,12 @@ 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
@@ -1345,38 +965,6 @@ 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
 
@@ -1448,8 +1036,9 @@ 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)
 
@@ -1598,7 +1187,7 @@ 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()
@@ -1616,7 +1205,7 @@ 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:
@@ -1648,11 +1237,11 @@ 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 = [
@@ -1772,7 +1361,7 @@ 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",
@@ -1795,7 +1384,7 @@ 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",
@@ -1804,11 +1393,6 @@ 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",
@@ -1830,7 +1414,7 @@ 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",
@@ -1867,6 +1451,13 @@ 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(
@@ -1954,24 +1545,6 @@ 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>.
     #
@@ -2037,7 +1610,7 @@ 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)]
             )
@@ -2050,16 +1623,6 @@ 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/address_cache.py

@@ -101,17 +101,6 @@ class AddressCache:
         """Check if any cache entries exist."""
         return bool(self.mdns_cache or self.dns_cache)
 
-    def add_mdns_addresses(self, hostname: str, addresses: list[str]) -> None:
-        """Store resolved mDNS addresses for ``hostname`` in the cache.
-
-        Callers that discover ``.local`` hosts (e.g. via mDNS browse) can use
-        this to avoid a second resolution round-trip during the upload path.
-        No-op when ``addresses`` is empty.
-        """
-        if not addresses:
-            return
-        self.mdns_cache[normalize_hostname(hostname)] = addresses
-
     @classmethod
     def from_cli_args(
         cls, mdns_args: Iterable[str], dns_args: Iterable[str]

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
@@ -40,15 +40,6 @@ _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]"
@@ -56,10 +47,6 @@ _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::"
@@ -205,27 +192,20 @@ class MemoryAnalyzer:
         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:
@@ -336,13 +316,6 @@ 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:
@@ -378,11 +351,6 @@ class MemoryAnalyzer:
         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):
@@ -410,33 +378,14 @@ 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."""
@@ -691,7 +640,6 @@ class MemoryAnalyzer:
             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.")
 
@@ -727,18 +675,9 @@ class MemoryAnalyzer:
                     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:
@@ -789,112 +728,6 @@ class MemoryAnalyzer:
             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.
 
@@ -1178,43 +1011,6 @@ class MemoryAnalyzer:
             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

@@ -15,7 +15,6 @@ from . import (
     _COMPONENT_PREFIX_ESPHOME,
     _COMPONENT_PREFIX_EXTERNAL,
     _COMPONENT_PREFIX_LIB,
-    _PSTORAGE_SUFFIX,
     RAM_SECTIONS,
     MemoryAnalyzer,
 )
@@ -24,17 +23,6 @@ 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."""
 
@@ -160,14 +148,11 @@ 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}"
+        return f"{demangled} ({size:,} B){section_label}"
 
     def _add_top_symbols(self, lines: list[str]) -> None:
         """Add a section showing the top largest symbols in the binary."""
@@ -190,13 +175,11 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
         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
+            # Truncate demangled name if too long
             demangled_display = (
-                f"{display_name[:truncate_limit]}..."
-                if len(display_name) > self.COL_TOP_SYMBOL_NAME
-                else display_name
+                f"{demangled[:truncate_limit]}..."
+                if len(demangled) > self.COL_TOP_SYMBOL_NAME
+                else demangled
             )
             lines.append(
                 f"{i + 1:>2}. {size:>7,} B {section_label:<8} {demangled_display:<{self.COL_TOP_SYMBOL_NAME}} {component}"
@@ -248,110 +231,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
                     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("")
-
     def generate_report(self, detailed: bool = False) -> str:
         """Generate a formatted memory report."""
         components = sorted(
@@ -590,16 +469,15 @@ 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 +500,7 @@ 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):")
@@ -643,14 +518,13 @@ 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("")
@@ -659,11 +533,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
         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

@@ -408,6 +408,7 @@ SYMBOL_PATTERNS = {
     ],
     "arduino_core": [
         "pinMode",
+        "resetPins",
         "millis",
         "micros",
         "delay(",  # More specific - Arduino delay function with parenthesis

esphome/async_thread.py

@@ -1,56 +0,0 @@
-"""Helpers for running an async coroutine from sync code via a daemon thread.
-
-``asyncio.run(coro())`` in the main thread blocks until the loop's cleanup
-cycle finishes, which can add hundreds of milliseconds before the caller
-receives the result. Running the loop in a daemon thread lets the caller
-observe the result as soon as the coroutine completes while cleanup finishes
-in the background.
-"""
-
-from __future__ import annotations
-
-import asyncio
-from collections.abc import Awaitable, Callable
-import threading
-from typing import Generic, TypeVar
-
-_T = TypeVar("_T")
-
-
-class AsyncThreadRunner(threading.Thread, Generic[_T]):
-    """Run an async coroutine in a daemon thread and expose its result.
-
-    The runner catches all exceptions from the coroutine and stores them in
-    ``exception`` so ``event`` is always set — this prevents callers waiting
-    on ``event`` from hanging forever when the coroutine crashes.
-
-    Typical usage::
-
-        runner = AsyncThreadRunner(lambda: my_coro(arg))
-        runner.start()
-        if not runner.event.wait(timeout=5.0):
-            ...  # timed out
-        if runner.exception is not None:
-            raise runner.exception
-        result = runner.result
-    """
-
-    def __init__(self, coro_factory: Callable[[], Awaitable[_T]]) -> None:
-        super().__init__(daemon=True)
-        self._coro_factory = coro_factory
-        self.result: _T | None = None
-        self.exception: BaseException | None = None
-        self.event = threading.Event()
-
-    async def _runner(self) -> None:
-        try:
-            self.result = await self._coro_factory()
-        except Exception as exc:  # pylint: disable=broad-except
-            # Capture all exceptions so ``event`` is always set — otherwise a
-            # crash would hang the waiter forever.
-            self.exception = exc
-        finally:
-            self.event.set()
-
-    def run(self) -> None:
-        asyncio.run(self._runner())

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,
@@ -597,7 +531,7 @@ async def component_resume_action_to_code(
     comp = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, comp)
     if CONF_UPDATE_INTERVAL in config:
-        template_ = await cg.templatable(config[CONF_UPDATE_INTERVAL], args, cg.uint32)
+        template_ = await cg.templatable(config[CONF_UPDATE_INTERVAL], args, int)
         cg.add(var.set_update_interval(template_))
     return var
 
@@ -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,

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());
   }
 }
 
@@ -53,12 +46,14 @@ void AbsoluteHumidityComponent::dump_config() {
 }
 
 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 +67,9 @@ 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 +90,12 @@ 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 +106,16 @@ 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 +123,14 @@ 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 +149,18 @@ 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 +171,11 @@ 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 {
@@ -15,6 +16,8 @@ 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; }
@@ -24,6 +27,15 @@ class AbsoluteHumidityComponent : public sensor::Sensor, public Component {
   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 +57,19 @@ 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

@@ -190,7 +190,7 @@ void AcDimmer::setup() {
     this->zero_cross_pin_->setup();
     this->store_.zero_cross_pin = this->zero_cross_pin_->to_isr();
     this->zero_cross_pin_->attach_interrupt(&AcDimmerDataStore::s_gpio_intr, &this->store_,
-                                            this->zero_cross_interrupt_type_);
+                                            gpio::INTERRUPT_FALLING_EDGE);
   }
 
 #ifdef USE_ESP8266
@@ -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
 }
 
@@ -226,25 +219,19 @@ void AcDimmer::write_state(float state) {
 void AcDimmer::dump_config() {
   ESP_LOGCONFIG(TAG,
                 "AcDimmer:\n"
-                "  Min Power: %.1f%%\n"
-                "  Init with half cycle: %s",
+                "   Min Power: %.1f%%\n"
+                "   Init with half cycle: %s",
                 this->store_.min_power / 10.0f, YESNO(this->init_with_half_cycle_));
   LOG_PIN("  Output Pin: ", this->gate_pin_);
   LOG_PIN("  Zero-Cross Pin: ", this->zero_cross_pin_);
-  if (this->zero_cross_interrupt_type_ == gpio::INTERRUPT_RISING_EDGE) {
-    ESP_LOGCONFIG(TAG, "  Interrupt Type: rising");
-  } else if (this->zero_cross_interrupt_type_ == gpio::INTERRUPT_FALLING_EDGE) {
-    ESP_LOGCONFIG(TAG, "  Interrupt Type: falling");
-  } else {
-    ESP_LOGCONFIG(TAG, "  Interrupt Type: any");
-  }
   if (method_ == DIM_METHOD_LEADING_PULSE) {
-    ESP_LOGCONFIG(TAG, "  Method: leading pulse");
+    ESP_LOGCONFIG(TAG, "   Method: leading pulse");
   } else if (method_ == DIM_METHOD_LEADING) {
-    ESP_LOGCONFIG(TAG, "  Method: leading");
+    ESP_LOGCONFIG(TAG, "   Method: leading");
   } else {
-    ESP_LOGCONFIG(TAG, "  Method: trailing");
+    ESP_LOGCONFIG(TAG, "   Method: trailing");
   }
+
   LOG_FLOAT_OUTPUT(this);
   ESP_LOGV(TAG, "  Estimated Frequency: %.3fHz", 1e6f / this->store_.cycle_time_us / 2);
 }

esphome/components/ac_dimmer/ac_dimmer.h

@@ -48,7 +48,6 @@ class AcDimmer : public output::FloatOutput, public Component {
   void dump_config() override;
   void set_gate_pin(InternalGPIOPin *gate_pin) { gate_pin_ = gate_pin; }
   void set_zero_cross_pin(InternalGPIOPin *zero_cross_pin) { zero_cross_pin_ = zero_cross_pin; }
-  void set_zero_cross_interrupt_type(gpio::InterruptType type) { zero_cross_interrupt_type_ = type; }
   void set_init_with_half_cycle(bool init_with_half_cycle) { init_with_half_cycle_ = init_with_half_cycle; }
   void set_method(DimMethod method) { method_ = method; }
 
@@ -57,7 +56,6 @@ class AcDimmer : public output::FloatOutput, public Component {
 
   InternalGPIOPin *gate_pin_;
   InternalGPIOPin *zero_cross_pin_;
-  gpio::InterruptType zero_cross_interrupt_type_;
   AcDimmerDataStore store_;
   bool init_with_half_cycle_;
   DimMethod method_;

esphome/components/ac_dimmer/output.py

@@ -7,8 +7,6 @@ from esphome.core import CORE
 
 CODEOWNERS = ["@glmnet"]
 
-gpio_ns = cg.esphome_ns.namespace("gpio")
-
 ac_dimmer_ns = cg.esphome_ns.namespace("ac_dimmer")
 AcDimmer = ac_dimmer_ns.class_("AcDimmer", output.FloatOutput, cg.Component)
 
@@ -19,26 +17,15 @@ DIM_METHODS = {
     "TRAILING": DimMethod.DIM_METHOD_TRAILING,
 }
 
-ZC_INTERRUPT_TYPES = {
-    "RISING": gpio_ns.INTERRUPT_RISING_EDGE,
-    "FALLING": gpio_ns.INTERRUPT_FALLING_EDGE,
-    "ANY": gpio_ns.INTERRUPT_ANY_EDGE,
-}
-
 CONF_GATE_PIN = "gate_pin"
 CONF_ZERO_CROSS_PIN = "zero_cross_pin"
 CONF_INIT_WITH_HALF_CYCLE = "init_with_half_cycle"
-CONF_ZERO_CROSS_INTERRUPT_TYPE = "zero_cross_interrupt_type"
-
 CONFIG_SCHEMA = cv.All(
     output.FLOAT_OUTPUT_SCHEMA.extend(
         {
             cv.Required(CONF_ID): cv.declare_id(AcDimmer),
             cv.Required(CONF_GATE_PIN): pins.internal_gpio_output_pin_schema,
             cv.Required(CONF_ZERO_CROSS_PIN): pins.internal_gpio_input_pin_schema,
-            cv.Optional(CONF_ZERO_CROSS_INTERRUPT_TYPE, default="FALLING"): cv.enum(
-                ZC_INTERRUPT_TYPES, upper=True, space="_"
-            ),
             cv.Optional(CONF_INIT_WITH_HALF_CYCLE, default=True): cv.boolean,
             cv.Optional(CONF_METHOD, default="leading pulse"): cv.enum(
                 DIM_METHODS, upper=True, space="_"
@@ -67,6 +54,5 @@ async def to_code(config):
     cg.add(var.set_gate_pin(pin))
     pin = await cg.gpio_pin_expression(config[CONF_ZERO_CROSS_PIN])
     cg.add(var.set_zero_cross_pin(pin))
-    cg.add(var.set_zero_cross_interrupt_type(config[CONF_ZERO_CROSS_INTERRUPT_TYPE]))
     cg.add(var.set_init_with_half_cycle(config[CONF_INIT_WITH_HALF_CYCLE]))
     cg.add(var.set_method(config[CONF_METHOD]))

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)) \

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 {
@@ -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, include_builtin_idf_component
 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"

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/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

@@ -10,14 +10,11 @@ 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
-from esphome.core.entity_helpers import (
-    entity_duplicate_validator,
-    queue_entity_register,
-    setup_entity,
-)
+from esphome.core.entity_helpers import entity_duplicate_validator, setup_entity
 from esphome.cpp_generator import MockObjClass
 
 CODEOWNERS = ["@grahambrown11", "@hwstar"]
@@ -37,9 +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)
@@ -62,17 +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),
+                }
+            ),
         }
     )
 )
@@ -115,66 +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):
@@ -185,7 +231,7 @@ async def setup_alarm_control_panel_core_(var, config):
 async def register_alarm_control_panel(var, config):
     if not CORE.has_id(config[CONF_ID]):
         var = cg.Pvariable(config[CONF_ID], var)
-    queue_entity_register("alarm_control_panel", config)
+    cg.add(cg.App.register_alarm_control_panel(var))
     CORE.register_platform_component("alarm_control_panel", var)
     await setup_alarm_control_panel_core_(var, config)
 
@@ -197,10 +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])
@@ -212,10 +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])
@@ -227,10 +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])
@@ -242,10 +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])
@@ -257,10 +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])
@@ -268,10 +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])
@@ -279,10 +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])
@@ -290,10 +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/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/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/animation/animation.cpp

@@ -62,12 +62,7 @@ void Animation::set_frame(int frame) {
 }
 
 void Animation::update_data_start_() {
-  uint32_t image_size = this->get_width_stride() * this->height_;
-  // RGB565 with an alpha channel stores the alpha plane immediately after the RGB
-  // plane within each frame, so the per-frame stride includes the alpha bytes.
-  if (this->type_ == image::IMAGE_TYPE_RGB565 && this->transparency_ == image::TRANSPARENCY_ALPHA_CHANNEL) {
-    image_size += static_cast<uint32_t>(this->width_) * this->height_;
-  }
+  const uint32_t image_size = this->get_width_stride() * this->height_;
   this->data_start_ = this->animation_data_start_ + image_size * this->current_frame_;
 }
 

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) {

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"
 
@@ -47,46 +32,16 @@ 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 {
  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 +51,163 @@ 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 on_cover_command_request(const CoverCommandRequest &msg) override;
 #endif
 #ifdef USE_FAN
   bool send_fan_state(fan::Fan *fan);
-  void on_fan_command_request(const FanCommandRequest &msg);
+  void on_fan_command_request(const FanCommandRequest &msg) override;
 #endif
 #ifdef USE_LIGHT
   bool send_light_state(light::LightState *light);
-  void on_light_command_request(const LightCommandRequest &msg);
+  void on_light_command_request(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 on_switch_command_request(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 on_camera_image_request(const CameraImageRequest &msg) override;
 #endif
 #ifdef USE_CLIMATE
   bool send_climate_state(climate::Climate *climate);
-  void on_climate_command_request(const ClimateCommandRequest &msg);
+  void on_climate_command_request(const ClimateCommandRequest &msg) override;
 #endif
 #ifdef USE_NUMBER
   bool send_number_state(number::Number *number);
-  void on_number_command_request(const NumberCommandRequest &msg);
+  void on_number_command_request(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 on_date_command_request(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 on_time_command_request(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 on_date_time_command_request(const DateTimeCommandRequest &msg) override;
 #endif
 #ifdef USE_TEXT
   bool send_text_state(text::Text *text);
-  void on_text_command_request(const TextCommandRequest &msg);
+  void on_text_command_request(const TextCommandRequest &msg) override;
 #endif
 #ifdef USE_SELECT
   bool send_select_state(select::Select *select);
-  void on_select_command_request(const SelectCommandRequest &msg);
+  void on_select_command_request(const SelectCommandRequest &msg) override;
 #endif
 #ifdef USE_BUTTON
-  void on_button_command_request(const ButtonCommandRequest &msg);
+  void on_button_command_request(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 on_lock_command_request(const LockCommandRequest &msg) override;
 #endif
 #ifdef USE_VALVE
   bool send_valve_state(valve::Valve *valve);
-  void on_valve_command_request(const ValveCommandRequest &msg);
+  void on_valve_command_request(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 on_media_player_command_request(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 on_subscribe_bluetooth_le_advertisements_request(const SubscribeBluetoothLEAdvertisementsRequest &msg) override;
+  void on_unsubscribe_bluetooth_le_advertisements_request() 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 on_bluetooth_device_request(const BluetoothDeviceRequest &msg) override;
+  void on_bluetooth_gatt_read_request(const BluetoothGATTReadRequest &msg) override;
+  void on_bluetooth_gatt_write_request(const BluetoothGATTWriteRequest &msg) override;
+  void on_bluetooth_gatt_read_descriptor_request(const BluetoothGATTReadDescriptorRequest &msg) override;
+  void on_bluetooth_gatt_write_descriptor_request(const BluetoothGATTWriteDescriptorRequest &msg) override;
+  void on_bluetooth_gatt_get_services_request(const BluetoothGATTGetServicesRequest &msg) override;
+  void on_bluetooth_gatt_notify_request(const BluetoothGATTNotifyRequest &msg) override;
+  void on_subscribe_bluetooth_connections_free_request() override;
+  void on_bluetooth_scanner_set_mode_request(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 on_subscribe_voice_assistant_request(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;
+  void on_voice_assistant_configuration_request(const VoiceAssistantConfigurationRequest &msg) override;
+  void on_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 on_z_wave_proxy_frame(const ZWaveProxyFrame &msg) override;
+  void on_z_wave_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 on_alarm_control_panel_command_request(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
 
-#if defined(USE_IR_RF) || defined(USE_RADIO_FREQUENCY)
-  void on_infrared_rf_transmit_raw_timings_request(const InfraredRFTransmitRawTimingsRequest &msg);
+#ifdef USE_IR_RF
+  void on_infrared_rf_transmit_raw_timings_request(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 on_update_command_request(const UpdateCommandRequest &msg) override;
 #endif
 
-  void on_disconnect_response();
-  void on_ping_response() {
+  void on_disconnect_response() override;
+  void on_ping_response() 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() {
+  void on_hello_request(const HelloRequest &msg) override;
+  void on_disconnect_request() override;
+  void on_ping_request() override;
+  void on_device_info_request() override;
+  void on_list_entities_request() override { this->begin_iterator_(ActiveIterator::LIST_ENTITIES); }
+  void on_subscribe_states_request() 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 +215,19 @@ class APIConnection final : public APIServerConnectionBase {
       this->begin_iterator_(ActiveIterator::INITIAL_STATE);
     }
   }
-  void on_subscribe_logs_request(const SubscribeLogsRequest &msg) {
+  void on_subscribe_logs_request(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 on_subscribe_homeassistant_services_request() override { this->flags_.service_call_subscription = true; }
 #endif
 #ifdef USE_API_HOMEASSISTANT_STATES
-  void on_subscribe_home_assistant_states_request();
+  void on_subscribe_home_assistant_states_request() override;
 #endif
 #ifdef USE_API_USER_DEFINED_ACTIONS
-  void on_execute_service_request(const ExecuteServiceRequest &msg);
+  void on_execute_service_request(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 +237,16 @@ 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);
+  void on_noise_encryption_set_key_request(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
@@ -321,47 +255,29 @@ 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;
+  bool send_message_impl(const ProtoMessage &msg, uint8_t message_type) override;
 
-  // 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);
-    }
-  }
-
-  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) {
+  void prepare_first_message_buffer(std::vector<uint8_t> &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
@@ -370,8 +286,6 @@ class APIConnection final : public APIServerConnectionBase {
   }
 
  protected:
-  bool try_to_clear_buffer_slow_(bool log_out_of_space);
-
   // Helper function to handle authentication completion
   void complete_authentication_();
 
@@ -398,112 +312,50 @@ 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);
 
-  // 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) {
+    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);
+  }
 
-    // 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) {
+    // 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);
   }
 
 #ifdef USE_VOICE_ASSISTANT
@@ -518,10 +370,6 @@ 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);
-
   // 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_();
@@ -612,9 +460,6 @@ class APIConnection final : public APIServerConnectionBase {
 #ifdef USE_INFRARED
   static uint16_t try_send_infrared_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
 #endif
-#ifdef USE_RADIO_FREQUENCY
-  static uint16_t try_send_radio_frequency_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size);
-#endif
 #ifdef USE_EVENT
   static uint16_t try_send_event_response(event::Event *event, StringRef event_type, APIConnection *conn,
                                           uint32_t remaining_size);
@@ -640,13 +485,7 @@ class APIConnection final : public APIServerConnectionBase {
   // === 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)
@@ -665,7 +504,6 @@ 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
@@ -700,28 +538,11 @@ 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);
+    // Single push_back site to avoid duplicate _M_realloc_insert instantiation
+    void push_item(const BatchItem &item);
 
     // Clear all items
     void clear() {
@@ -774,7 +595,6 @@ 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
@@ -783,16 +603,11 @@ 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
@@ -808,8 +623,8 @@ 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 process_batch_multi_(std::vector<uint8_t> &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;
@@ -859,8 +674,10 @@ 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

@@ -100,81 +100,149 @@ 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_++;
+}
+
+// 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);
+  }
+#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
 }
 
 const char *APIFrameHelper::get_peername_to(std::span<char, socket::SOCKADDR_STR_LEN> buf) const {
@@ -210,12 +278,11 @@ 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 {
@@ -110,9 +101,9 @@ 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)
@@ -139,66 +130,43 @@ 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 +174,37 @@ 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_;
@@ -274,20 +228,9 @@ 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]{};
@@ -297,17 +240,15 @@ class APIFrameHelper {
   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

@@ -47,8 +47,15 @@ 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
@@ -146,10 +153,8 @@ 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 +194,17 @@ 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 +239,129 @@ 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 +370,6 @@ 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 +377,6 @@ 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 +392,14 @@ 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 +407,7 @@ 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 +436,78 @@ 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)
+    constexpr 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 +516,16 @@ 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 +563,8 @@ 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 +574,7 @@ 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 +590,7 @@ 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

@@ -39,8 +39,15 @@ 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 +64,8 @@ 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 +128,45 @@ 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 +194,17 @@ 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 +219,14 @@ 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 +236,76 @@ 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
+    encode_varint_to_buffer(msg.payload_size, buf_start + header_offset + 1);
+    encode_varint_to_buffer(msg.message_type, buf_start + header_offset + 1 + size_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

esphome/components/api/api_frame_helper_plaintext.h

@@ -7,15 +7,13 @@ namespace esphome::api {
 
 class APIPlaintextFrameHelper final : public APIFrameHelper {
  public:
-  // Plaintext header structure (worst case):
-  // Pos 0: indicator (0x00)
-  // Pos 1-3: payload size varint (up to 3 bytes)
-  // Pos 4-5: message type varint (up to 2 bytes)
-  // Pos 6+: actual payload data
-  static constexpr uint8_t HEADER_PADDING = 1 + 3 + 2;  // indicator + size varint + type varint
-
   explicit APIPlaintextFrameHelper(std::unique_ptr<socket::Socket> socket) : APIFrameHelper(std::move(socket)) {
-    frame_header_padding_ = HEADER_PADDING;
+    // Plaintext header structure (worst case):
+    // Pos 0: indicator (0x00)
+    // Pos 1-3: payload size varint (up to 3 bytes)
+    // Pos 4-5: message type varint (up to 2 bytes)
+    // Pos 6+: actual payload data
+    frame_header_padding_ = 6;
   }
   ~APIPlaintextFrameHelper() override = default;
   APIError init() override;

esphome/components/api/api_options.proto

@@ -22,8 +22,6 @@ extend google.protobuf.MessageOptions {
     optional bool log = 1039 [default=true];
     optional bool no_delay = 1040 [default=false];
     optional string base_class = 1041;
-    optional bool inline_encode = 1042 [default=false];
-    optional bool speed_optimized = 1043 [default=false];
 }
 
 extend google.protobuf.FieldOptions {
@@ -92,28 +90,4 @@ extend google.protobuf.FieldOptions {
     //   - uint16_t <field>_length_{0};
     //   - uint16_t <field>_count_{0};
     optional bool packed_buffer = 50015 [default=false];
-
-    // force: Always encode this field, even when its value equals the proto3 default.
-    // Skips the zero/empty check in calculate_size() and encode(), using the _force
-    // variant of the calc_ method. Use on fields that are almost always non-default
-    // to eliminate dead branches on hot paths.
-    optional bool force = 50016 [default=false];
-
-    // max_value: Maximum value a field can have.
-    // When max_value < 128, the code generator emits constant-size calculations
-    // and direct byte writes instead of varint branching, since the encoded varint
-    // is guaranteed to be 1 byte.
-    optional uint32 max_value = 50017;
-
-    // max_data_length: Maximum length of a string or bytes field.
-    // When max_data_length < 128, the code generator emits constant-size
-    // length varint calculations and direct byte writes, since the length
-    // varint is guaranteed to be 1 byte.
-    optional uint32 max_data_length = 50018;
-
-    // mac_address: Field is a 48-bit MAC address stored in a uint64.
-    // Emits encode_varint_raw_48bit which has a 7-byte fast path that avoids
-    // the per-byte loop when the upper bits are non-zero (the common case
-    // for real MAC addresses, since OUIs occupy the top 24 bits).
-    optional bool mac_address = 50019 [default=false];
 }

esphome/components/api/api_overflow_buffer.cpp

@@ -1,73 +0,0 @@
-#include "api_overflow_buffer.h"
-#ifdef USE_API
-#include <cstring>
-
-namespace esphome::api {
-
-APIOverflowBuffer::~APIOverflowBuffer() {
-  for (auto *entry : this->queue_) {
-    if (entry != nullptr)
-      Entry::destroy(entry);
-  }
-}
-
-ssize_t APIOverflowBuffer::try_drain(socket::Socket *socket) {
-  while (this->count_ > 0) {
-    Entry *front = this->queue_[this->head_];
-
-    ssize_t sent = socket->write(front->current_data(), front->remaining());
-
-    if (sent <= 0) {
-      // -1 = error (caller checks errno for EWOULDBLOCK vs hard error)
-      // 0 = nothing sent (treat as no progress)
-      return sent;
-    }
-
-    if (static_cast<uint16_t>(sent) < front->remaining()) {
-      // Partially sent, update offset and stop
-      front->offset += static_cast<uint16_t>(sent);
-      return sent;
-    }
-
-    // Entry fully sent — free it and advance
-    Entry::destroy(front);
-    this->queue_[this->head_] = nullptr;
-    this->head_ = (this->head_ + 1) % API_MAX_SEND_QUEUE;
-    this->count_--;
-  }
-
-  return 0;  // All drained
-}
-
-bool APIOverflowBuffer::enqueue_iov(const struct iovec *iov, int iovcnt, uint16_t total_len, uint16_t skip) {
-  if (this->count_ >= API_MAX_SEND_QUEUE)
-    return false;
-
-  uint16_t buffer_size = total_len - skip;
-  // NOLINTNEXTLINE(cppcoreguidelines-owning-memory)
-  auto *entry = new Entry{new uint8_t[buffer_size], buffer_size, 0};
-  this->queue_[this->tail_] = entry;
-
-  uint16_t to_skip = skip;
-  uint16_t write_pos = 0;
-
-  for (int i = 0; i < iovcnt; i++) {
-    if (to_skip >= iov[i].iov_len) {
-      to_skip -= static_cast<uint16_t>(iov[i].iov_len);
-    } else {
-      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(entry->data + write_pos, src, len);
-      write_pos += len;
-      to_skip = 0;
-    }
-  }
-
-  this->tail_ = (this->tail_ + 1) % API_MAX_SEND_QUEUE;
-  this->count_++;
-  return true;
-}
-
-}  // namespace esphome::api
-
-#endif  // USE_API

esphome/components/api/api_overflow_buffer.h

@@ -1,76 +0,0 @@
-#pragma once
-#include <array>
-#include <cstdint>
-#include <sys/types.h>
-
-#include "esphome/core/defines.h"
-#ifdef USE_API
-
-#include "esphome/components/socket/headers.h"
-#include "esphome/components/socket/socket.h"
-#include "esphome/core/helpers.h"
-
-namespace esphome::api {
-
-/// Circular queue of heap-allocated byte buffers used as a TCP send backlog.
-///
-/// Under normal operation this buffer is **never used** — data goes straight
-/// from the frame helper to the socket.  It only fills when the LWIP TCP
-/// send buffer is full (slow client, congested network, heavy logging).
-/// The queue drains automatically on subsequent write/loop calls once the
-/// socket becomes writable again.
-///
-/// Capacity is compile-time-fixed via API_MAX_SEND_QUEUE (set from Python
-/// config).  If the queue fills completely the connection is marked failed.
-class APIOverflowBuffer {
- public:
-  /// A single heap-allocated send-backlog entry.
-  /// Lifetime is manually managed — see destroy().
-  struct Entry {
-    uint8_t *data;
-    uint16_t size;    // Total size of the buffer
-    uint16_t offset;  // Current send offset within the buffer
-
-    uint16_t remaining() const { return this->size - this->offset; }
-    const uint8_t *current_data() const { return this->data + this->offset; }
-
-    /// Free this entry and its data buffer.
-    static ESPHOME_ALWAYS_INLINE void destroy(Entry *entry) {
-      delete[] entry->data;
-      delete entry;  // NOLINT(cppcoreguidelines-owning-memory)
-    }
-  };
-
-  ~APIOverflowBuffer();
-
-  /// True when no backlogged data is waiting.
-  bool empty() const { return this->count_ == 0; }
-
-  /// True when the queue has no room for another entry.
-  bool full() const { return this->count_ >= API_MAX_SEND_QUEUE; }
-
-  /// Number of entries currently queued.
-  uint8_t count() const { return this->count_; }
-
-  /// Try to drain queued data to the socket.
-  /// Returns bytes-written > 0 on success/partial, 0 if all drained or no progress,
-  /// -1 on error (caller must check errno to distinguish EWOULDBLOCK from hard errors).
-  /// Callers only need to act on -1; 0 and positive values both mean "no error".
-  /// Frees entries as they are fully sent.
-  ssize_t try_drain(socket::Socket *socket);
-
-  /// Enqueue unsent IOV data into the backlog.
-  /// Copies iov data starting at byte offset `skip` into a new entry.
-  /// Returns false if the queue is full (caller should fail the connection).
-  bool enqueue_iov(const struct iovec *iov, int iovcnt, uint16_t total_len, uint16_t skip);
-
- protected:
-  std::array<Entry *, API_MAX_SEND_QUEUE> queue_{};
-  uint8_t head_{0};
-  uint8_t tail_{0};
-  uint8_t count_{0};
-};
-
-}  // namespace esphome::api
-
-#endif  // USE_API