diff --git a/.clang-tidy.hash b/.clang-tidy.hash
index e89b4230ad..25ae506732 100644
--- a/.clang-tidy.hash
+++ b/.clang-tidy.hash
@@ -1 +1 @@
-d9c755e5f019b2ecb324834717bc1fb8563e622f5751794cb7156d324884481e
+58a760f5fd174bd438bcc3a7018292c158530c1a1d15181941c832d4c032511c
diff --git a/esphome/components/bthome_mithermometer/bthome_ble.cpp b/esphome/components/bthome_mithermometer/bthome_ble.cpp
index ff12e6157d..ff38ab1740 100644
--- a/esphome/components/bthome_mithermometer/bthome_ble.cpp
+++ b/esphome/components/bthome_mithermometer/bthome_ble.cpp
@@ -222,6 +222,7 @@ bool BTHomeMiThermometer::decrypt_bthome_payload_(const std::vector<uint8_t> &da
   }
 
   size_t plaintext_length;
+  // NOLINTNEXTLINE(readability-suspicious-call-argument) - similarly named size args are not swapped
   psa_status_t status = psa_aead_decrypt(key_id, PSA_ALG_AEAD_WITH_SHORTENED_TAG(PSA_ALG_CCM, BTHOME_MIC_SIZE),
                                          nonce.data(), nonce.size(), nullptr, 0, ct_with_tag, ct_with_tag_size,
                                          payload.data(), ciphertext_size, &plaintext_length);
diff --git a/esphome/components/ledc/ledc_output.cpp b/esphome/components/ledc/ledc_output.cpp
index bfb629143d..62833a7649 100644
--- a/esphome/components/ledc/ledc_output.cpp
+++ b/esphome/components/ledc/ledc_output.cpp
@@ -165,6 +165,8 @@ void LEDCOutput::write_state(float state) {
 void LEDCOutput::setup() {
   if (!ledc_peripheral_reset_done) {
     ESP_LOGV(TAG, "Resetting LEDC peripheral to clear stale state after reboot");
+    // Skip under clang-tidy: the inlined HAL MMIO writes trip clang-analyzer-core.FixedAddressDereference
+#if !defined(CLANG_TIDY)
 #if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(6, 1, 0)
     PERIPH_RCC_ATOMIC() { ledc_ll_reset_register(0); }
 #elif ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(6, 0, 0)
@@ -174,6 +176,7 @@ void LEDCOutput::setup() {
     }
 #else
     periph_module_reset(PERIPH_LEDC_MODULE);
+#endif
 #endif
     ledc_peripheral_reset_done = true;
   }
diff --git a/platformio.ini b/platformio.ini
index d3fde193b4..182f426a31 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -132,10 +132,7 @@ extra_scripts = post:esphome/components/esp8266/post_build.py.script
 ; This are common settings for the ESP32 (all variants) using Arduino.
 [common:esp32-arduino]
 extends = common:arduino
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.39/platform-espressif32.zip
-platform_packages =
-    pioarduino/framework-arduinoespressif32@https://github.com/espressif/arduino-esp32/releases/download/3.3.9/esp32-core-3.3.9.tar.xz
-    pioarduino/framework-espidf@https://github.com/pioarduino/esp-idf/releases/download/v5.5.4/esp-idf-v5.5.4.tar.xz
+platform = https://github.com/pioarduino/platform-espressif32.git
 
 framework = arduino, espidf  ; Arduino as an ESP-IDF component
 lib_deps =
@@ -167,9 +164,7 @@ extra_scripts = post:esphome/components/esp32/post_build.py.script
 ; This are common settings for the ESP32 (all variants) using IDF.
 [common:esp32-idf]
 extends = common:idf
-platform = https://github.com/pioarduino/platform-espressif32/releases/download/55.03.39/platform-espressif32.zip
-platform_packages =
-    pioarduino/framework-espidf@https://github.com/pioarduino/esp-idf/releases/download/v5.5.4/esp-idf-v5.5.4.tar.xz
+platform = https://github.com/pioarduino/platform-espressif32.git
 
 framework = espidf
 lib_deps =
diff --git a/script/clang-tidy b/script/clang-tidy
index f19bdb9b56..1416b9b332 100755
--- a/script/clang-tidy
+++ b/script/clang-tidy
@@ -73,6 +73,7 @@ def clang_options(idedata):
         "-freorder-blocks",
         "-fno-jump-tables",
         "-fno-shrink-wrap",
+        "-mno-target-align",
     )
 
     if "zephyr" in triplet:
@@ -137,6 +138,7 @@ def clang_options(idedata):
         if flag not in omit_flags
         and not flag.startswith("-Werror")
         and not flag.startswith("-std=")
+        and not flag.startswith("-mtune=esp")
     )
     cmd.append("-std=gnu++20")
 
diff --git a/sdkconfig.defaults b/sdkconfig.defaults
index 8d177a7e26..2bd702f48e 100644
--- a/sdkconfig.defaults
+++ b/sdkconfig.defaults
@@ -2,6 +2,14 @@
 # (clang-tidy) -- by both the PlatformIO and the native ESP-IDF toolchain paths -- and when PlatformIO is run directly
 # from the source directory (e.g. by IDEs). This should enable all flags that are set by any component.
 
+# clang-tidy analyzes with clang, and IDF 6 only offers newlib under clang
+# (picolibc's Kconfig depends on !IDF_TOOLCHAIN_CLANG). The idedata is generated
+# with GCC, whose default is picolibc -- but clang-tidy uses the toolchain's
+# newlib headers, so a picolibc build config mismatches them (IDF's hal/assert.h
+# redeclares abort()/__assert_func() with [[noreturn]] after newlib's stdlib.h,
+# tripping clang-diagnostic-error). Pin newlib to match the analyzed headers.
+CONFIG_LIBC_NEWLIB=y
+
 # esp32
 CONFIG_COMPILER_OPTIMIZATION_SIZE=y
 CONFIG_FREERTOS_HZ=1000