diff --git a/homeassistant/components/climate/intent.py b/homeassistant/components/climate/intent.py
index 632e678be94..a7bf3357f99 100644
--- a/homeassistant/components/climate/intent.py
+++ b/homeassistant/components/climate/intent.py
@@ -22,6 +22,7 @@ class GetTemperatureIntent(intent.IntentHandler):
     """Handle GetTemperature intents."""
 
     intent_type = INTENT_GET_TEMPERATURE
+    description = "Gets the current temperature of a climate device or entity"
     slot_schema = {vol.Optional("area"): str, vol.Optional("name"): str}
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
diff --git a/homeassistant/components/humidifier/intent.py b/homeassistant/components/humidifier/intent.py
index 361de8e36db..ffe41b48c04 100644
--- a/homeassistant/components/humidifier/intent.py
+++ b/homeassistant/components/humidifier/intent.py
@@ -33,6 +33,7 @@ class HumidityHandler(intent.IntentHandler):
     """Handle set humidity intents."""
 
     intent_type = INTENT_HUMIDITY
+    description = "Set desired humidity level"
     slot_schema = {
         vol.Required("name"): cv.string,
         vol.Required("humidity"): vol.All(vol.Coerce(int), vol.Range(0, 100)),
@@ -85,6 +86,7 @@ class SetModeHandler(intent.IntentHandler):
     """Handle set humidity intents."""
 
     intent_type = INTENT_MODE
+    description = "Set humidifier mode"
     slot_schema = {
         vol.Required("name"): cv.string,
         vol.Required("mode"): cv.string,
diff --git a/homeassistant/components/intent/__init__.py b/homeassistant/components/intent/__init__.py
index 31dee02c7e4..feac4ef05d9 100644
--- a/homeassistant/components/intent/__init__.py
+++ b/homeassistant/components/intent/__init__.py
@@ -73,15 +73,30 @@ async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
 
     intent.async_register(
         hass,
-        OnOffIntentHandler(intent.INTENT_TURN_ON, HA_DOMAIN, SERVICE_TURN_ON),
+        OnOffIntentHandler(
+            intent.INTENT_TURN_ON,
+            HA_DOMAIN,
+            SERVICE_TURN_ON,
+            description="Turns on/opens a device or entity",
+        ),
     )
     intent.async_register(
         hass,
-        OnOffIntentHandler(intent.INTENT_TURN_OFF, HA_DOMAIN, SERVICE_TURN_OFF),
+        OnOffIntentHandler(
+            intent.INTENT_TURN_OFF,
+            HA_DOMAIN,
+            SERVICE_TURN_OFF,
+            description="Turns off/closes a device or entity",
+        ),
     )
     intent.async_register(
         hass,
-        intent.ServiceIntentHandler(intent.INTENT_TOGGLE, HA_DOMAIN, SERVICE_TOGGLE),
+        intent.ServiceIntentHandler(
+            intent.INTENT_TOGGLE,
+            HA_DOMAIN,
+            SERVICE_TOGGLE,
+            "Toggles a device or entity",
+        ),
     )
     intent.async_register(
         hass,
@@ -195,6 +210,7 @@ class GetStateIntentHandler(intent.IntentHandler):
     """Answer questions about entity states."""
 
     intent_type = intent.INTENT_GET_STATE
+    description = "Gets or checks the state of a device or entity"
     slot_schema = {
         vol.Any("name", "area", "floor"): cv.string,
         vol.Optional("domain"): vol.All(cv.ensure_list, [cv.string]),
@@ -314,6 +330,7 @@ class NevermindIntentHandler(intent.IntentHandler):
     """Takes no action."""
 
     intent_type = intent.INTENT_NEVERMIND
+    description = "Cancels the current request and does nothing"
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
         """Doe not do anything, and produces an empty response."""
@@ -323,6 +340,8 @@ class NevermindIntentHandler(intent.IntentHandler):
 class SetPositionIntentHandler(intent.DynamicServiceIntentHandler):
     """Intent handler for setting positions."""
 
+    description = "Sets the position of a device or entity"
+
     def __init__(self) -> None:
         """Create set position handler."""
         super().__init__(
diff --git a/homeassistant/components/intent/timers.py b/homeassistant/components/intent/timers.py
index e653ccfa930..837f4117c41 100644
--- a/homeassistant/components/intent/timers.py
+++ b/homeassistant/components/intent/timers.py
@@ -690,6 +690,7 @@ class StartTimerIntentHandler(intent.IntentHandler):
     """Intent handler for starting a new timer."""
 
     intent_type = intent.INTENT_START_TIMER
+    description = "Starts a new timer"
     slot_schema = {
         vol.Required(vol.Any("hours", "minutes", "seconds")): cv.positive_int,
         vol.Optional("name"): cv.string,
@@ -733,6 +734,7 @@ class CancelTimerIntentHandler(intent.IntentHandler):
     """Intent handler for cancelling a timer."""
 
     intent_type = intent.INTENT_CANCEL_TIMER
+    description = "Cancels a timer"
     slot_schema = {
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
         vol.Optional("name"): cv.string,
@@ -755,6 +757,7 @@ class IncreaseTimerIntentHandler(intent.IntentHandler):
     """Intent handler for increasing the time of a timer."""
 
     intent_type = intent.INTENT_INCREASE_TIMER
+    description = "Adds more time to a timer"
     slot_schema = {
         vol.Any("hours", "minutes", "seconds"): cv.positive_int,
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
@@ -779,6 +782,7 @@ class DecreaseTimerIntentHandler(intent.IntentHandler):
     """Intent handler for decreasing the time of a timer."""
 
     intent_type = intent.INTENT_DECREASE_TIMER
+    description = "Removes time from a timer"
     slot_schema = {
         vol.Required(vol.Any("hours", "minutes", "seconds")): cv.positive_int,
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
@@ -803,6 +807,7 @@ class PauseTimerIntentHandler(intent.IntentHandler):
     """Intent handler for pausing a running timer."""
 
     intent_type = intent.INTENT_PAUSE_TIMER
+    description = "Pauses a running timer"
     slot_schema = {
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
         vol.Optional("name"): cv.string,
@@ -825,6 +830,7 @@ class UnpauseTimerIntentHandler(intent.IntentHandler):
     """Intent handler for unpausing a paused timer."""
 
     intent_type = intent.INTENT_UNPAUSE_TIMER
+    description = "Resumes a paused timer"
     slot_schema = {
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
         vol.Optional("name"): cv.string,
@@ -847,6 +853,7 @@ class TimerStatusIntentHandler(intent.IntentHandler):
     """Intent handler for reporting the status of a timer."""
 
     intent_type = intent.INTENT_TIMER_STATUS
+    description = "Reports the current status of timers"
     slot_schema = {
         vol.Any("start_hours", "start_minutes", "start_seconds"): cv.positive_int,
         vol.Optional("name"): cv.string,
diff --git a/homeassistant/components/light/intent.py b/homeassistant/components/light/intent.py
index 1092c42d6d2..a2824f7cc22 100644
--- a/homeassistant/components/light/intent.py
+++ b/homeassistant/components/light/intent.py
@@ -32,5 +32,6 @@ async def async_setup_intents(hass: HomeAssistant) -> None:
                     vol.Coerce(int), vol.Range(0, 100)
                 ),
             },
+            description="Sets the brightness or color of a light",
         ),
     )
diff --git a/homeassistant/components/media_player/intent.py b/homeassistant/components/media_player/intent.py
index da8da6c2c58..1c2de8371f1 100644
--- a/homeassistant/components/media_player/intent.py
+++ b/homeassistant/components/media_player/intent.py
@@ -65,6 +65,7 @@ async def async_setup_intents(hass: HomeAssistant) -> None:
             required_domains={DOMAIN},
             required_features=MediaPlayerEntityFeature.NEXT_TRACK,
             required_states={MediaPlayerState.PLAYING},
+            description="Skips a media player to the next item",
         ),
     )
     intent.async_register(
@@ -81,6 +82,7 @@ async def async_setup_intents(hass: HomeAssistant) -> None:
                     vol.Coerce(int), vol.Range(min=0, max=100), lambda val: val / 100
                 )
             },
+            description="Sets the volume of a media player",
         ),
     )
 
@@ -97,6 +99,7 @@ class MediaPauseHandler(intent.ServiceIntentHandler):
             required_domains={DOMAIN},
             required_features=MediaPlayerEntityFeature.PAUSE,
             required_states={MediaPlayerState.PLAYING},
+            description="Pauses a media player",
         )
         self.last_paused = last_paused
 
@@ -130,6 +133,7 @@ class MediaUnpauseHandler(intent.ServiceIntentHandler):
             SERVICE_MEDIA_PLAY,
             required_domains={DOMAIN},
             required_states={MediaPlayerState.PAUSED},
+            description="Resumes a media player",
         )
         self.last_paused = last_paused
 
diff --git a/homeassistant/components/shopping_list/intent.py b/homeassistant/components/shopping_list/intent.py
index 70a70467cbd..35bc2ff4787 100644
--- a/homeassistant/components/shopping_list/intent.py
+++ b/homeassistant/components/shopping_list/intent.py
@@ -22,6 +22,7 @@ class AddItemIntent(intent.IntentHandler):
     """Handle AddItem intents."""
 
     intent_type = INTENT_ADD_ITEM
+    description = "Adds an item to the shopping list"
     slot_schema = {"item": cv.string}
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
@@ -39,6 +40,7 @@ class ListTopItemsIntent(intent.IntentHandler):
     """Handle AddItem intents."""
 
     intent_type = INTENT_LAST_ITEMS
+    description = "List the top five items on the shopping list"
     slot_schema = {"item": cv.string}
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
diff --git a/homeassistant/components/todo/intent.py b/homeassistant/components/todo/intent.py
index 81d5ca2ae0c..779c51b3bf7 100644
--- a/homeassistant/components/todo/intent.py
+++ b/homeassistant/components/todo/intent.py
@@ -21,6 +21,7 @@ class ListAddItemIntent(intent.IntentHandler):
     """Handle ListAddItem intents."""
 
     intent_type = INTENT_LIST_ADD_ITEM
+    description = "Add item to a todo list"
     slot_schema = {"item": cv.string, "name": cv.string}
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
diff --git a/homeassistant/components/vacuum/intent.py b/homeassistant/components/vacuum/intent.py
index 534078ec8af..7ab5ab18374 100644
--- a/homeassistant/components/vacuum/intent.py
+++ b/homeassistant/components/vacuum/intent.py
@@ -13,11 +13,16 @@ async def async_setup_intents(hass: HomeAssistant) -> None:
     """Set up the vacuum intents."""
     intent.async_register(
         hass,
-        intent.ServiceIntentHandler(INTENT_VACUUM_START, DOMAIN, SERVICE_START),
+        intent.ServiceIntentHandler(
+            INTENT_VACUUM_START, DOMAIN, SERVICE_START, description="Starts a vacuum"
+        ),
     )
     intent.async_register(
         hass,
         intent.ServiceIntentHandler(
-            INTENT_VACUUM_RETURN_TO_BASE, DOMAIN, SERVICE_RETURN_TO_BASE
+            INTENT_VACUUM_RETURN_TO_BASE,
+            DOMAIN,
+            SERVICE_RETURN_TO_BASE,
+            description="Returns a vacuum to base",
         ),
     )
diff --git a/homeassistant/components/weather/intent.py b/homeassistant/components/weather/intent.py
index c216fcda17d..92ffc851cc9 100644
--- a/homeassistant/components/weather/intent.py
+++ b/homeassistant/components/weather/intent.py
@@ -23,6 +23,7 @@ class GetWeatherIntent(intent.IntentHandler):
     """Handle GetWeather intents."""
 
     intent_type = INTENT_GET_WEATHER
+    description = "Gets the current weather"
     slot_schema = {vol.Optional("name"): cv.string}
 
     async def async_handle(self, intent_obj: intent.Intent) -> intent.IntentResponse:
diff --git a/homeassistant/helpers/intent.py b/homeassistant/helpers/intent.py
index 3a616b5e29c..8f5ace63be8 100644
--- a/homeassistant/helpers/intent.py
+++ b/homeassistant/helpers/intent.py
@@ -725,6 +725,7 @@ class IntentHandler:
 
     intent_type: str
     platforms: Iterable[str] | None = []
+    description: str | None = None
 
     @property
     def slot_schema(self) -> dict | None:
@@ -784,6 +785,7 @@ class DynamicServiceIntentHandler(IntentHandler):
         required_domains: set[str] | None = None,
         required_features: int | None = None,
         required_states: set[str] | None = None,
+        description: str | None = None,
     ) -> None:
         """Create Service Intent Handler."""
         self.intent_type = intent_type
@@ -791,6 +793,7 @@ class DynamicServiceIntentHandler(IntentHandler):
         self.required_domains = required_domains
         self.required_features = required_features
         self.required_states = required_states
+        self.description = description
 
         self.required_slots: dict[tuple[str, str], vol.Schema] = {}
         if required_slots:
@@ -1076,6 +1079,7 @@ class ServiceIntentHandler(DynamicServiceIntentHandler):
         required_domains: set[str] | None = None,
         required_features: int | None = None,
         required_states: set[str] | None = None,
+        description: str | None = None,
     ) -> None:
         """Create service handler."""
         super().__init__(
@@ -1086,6 +1090,7 @@ class ServiceIntentHandler(DynamicServiceIntentHandler):
             required_domains=required_domains,
             required_features=required_features,
             required_states=required_states,
+            description=description,
         )
         self.domain = domain
         self.service = service
diff --git a/homeassistant/helpers/llm.py b/homeassistant/helpers/llm.py
index 2edc6d650f4..0442678e835 100644
--- a/homeassistant/helpers/llm.py
+++ b/homeassistant/helpers/llm.py
@@ -136,7 +136,9 @@ class IntentTool(Tool):
     ) -> None:
         """Init the class."""
         self.name = intent_handler.intent_type
-        self.description = f"Execute Home Assistant {self.name} intent"
+        self.description = (
+            intent_handler.description or f"Execute Home Assistant {self.name} intent"
+        )
         if slot_schema := intent_handler.slot_schema:
             self.parameters = vol.Schema(slot_schema)
 
diff --git a/tests/helpers/test_llm.py b/tests/helpers/test_llm.py
index 8b3de48e5ae..b8f5755ae39 100644
--- a/tests/helpers/test_llm.py
+++ b/tests/helpers/test_llm.py
@@ -118,3 +118,21 @@ async def test_assist_api(hass: HomeAssistant) -> None:
         "response_type": "action_done",
         "speech": {},
     }
+
+
+async def test_assist_api_description(hass: HomeAssistant) -> None:
+    """Test intent description with Assist API."""
+
+    class MyIntentHandler(intent.IntentHandler):
+        intent_type = "test_intent"
+        description = "my intent handler"
+
+    intent.async_register(hass, MyIntentHandler())
+
+    assert len(llm.async_get_apis(hass)) == 1
+    api = llm.async_get_api(hass, "assist")
+    tools = api.async_get_tools()
+    assert len(tools) == 1
+    tool = tools[0]
+    assert tool.name == "test_intent"
+    assert tool.description == "my intent handler"