no real good option but to disable them all manually

esphome/components/mqtt/mqtt_number.cpp

@@ -40,6 +40,7 @@ const EntityBase *MQTTNumberComponent::get_entity() const { return this->number_
 void MQTTNumberComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   const auto &traits = number_->traits;
   // https://www.home-assistant.io/integrations/number.mqtt/
+  // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
   root[MQTT_MIN] = traits.get_min_value();
   root[MQTT_MAX] = traits.get_max_value();
   root[MQTT_STEP] = traits.get_step();

esphome/components/mqtt/mqtt_select.cpp

@@ -35,6 +35,7 @@ const EntityBase *MQTTSelectComponent::get_entity() const { return this->select_
 void MQTTSelectComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   const auto &traits = select_->traits;
   // https://www.home-assistant.io/integrations/select.mqtt/
+  // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
   JsonArray options = root[MQTT_OPTIONS].to<JsonArray>();
   for (const auto &option : traits.get_options())
     options.add(option);

esphome/components/mqtt/mqtt_sensor.cpp

@@ -45,6 +45,7 @@ void MQTTSensorComponent::disable_expire_after() { this->expire_after_ = 0; }
 
 void MQTTSensorComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   if (!this->sensor_->get_device_class().empty())
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[MQTT_DEVICE_CLASS] = this->sensor_->get_device_class();
 
   if (!this->sensor_->get_unit_of_measurement().empty())

esphome/components/mqtt/mqtt_switch.cpp

@@ -46,6 +46,7 @@ std::string MQTTSwitchComponent::component_type() const { return "switch"; }
 const EntityBase *MQTTSwitchComponent::get_entity() const { return this->switch_; }
 void MQTTSwitchComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   if (this->switch_->assumed_state())
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[MQTT_OPTIMISTIC] = true;
 }
 bool MQTTSwitchComponent::send_initial_state() { return this->publish_state(this->switch_->state); }

esphome/components/mqtt/mqtt_text.cpp

@@ -39,6 +39,7 @@ void MQTTTextComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfi
       root[MQTT_MODE] = "text";
       break;
     case TEXT_MODE_PASSWORD:
+      // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
       root[MQTT_MODE] = "password";
       break;
   }

esphome/components/mqtt/mqtt_text_sensor.cpp

@@ -16,6 +16,7 @@ using namespace esphome::text_sensor;
 MQTTTextSensor::MQTTTextSensor(TextSensor *sensor) : sensor_(sensor) {}
 void MQTTTextSensor::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   if (!this->sensor_->get_device_class().empty())
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[MQTT_DEVICE_CLASS] = this->sensor_->get_device_class();
   config.command_topic = false;
 }

esphome/components/mqtt/mqtt_time.cpp

@@ -55,6 +55,7 @@ bool MQTTTimeComponent::send_initial_state() {
 }
 bool MQTTTimeComponent::publish_state(uint8_t hour, uint8_t minute, uint8_t second) {
   return this->publish_json(this->get_state_topic_(), [hour, minute, second](JsonObject root) {
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root["hour"] = hour;
     root["minute"] = minute;
     root["second"] = second;

esphome/components/mqtt/mqtt_update.cpp

@@ -41,6 +41,7 @@ bool MQTTUpdateComponent::publish_state() {
 }
 
 void MQTTUpdateComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
+  // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
   root["schema"] = "json";
   root[MQTT_PAYLOAD_INSTALL] = "INSTALL";
 }

esphome/components/mqtt/mqtt_valve.cpp

@@ -50,6 +50,7 @@ void MQTTValveComponent::dump_config() {
 }
 void MQTTValveComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   if (!this->valve_->get_device_class().empty())
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[MQTT_DEVICE_CLASS] = this->valve_->get_device_class();
 
   auto traits = this->valve_->get_traits();