Add device name to llm exposed entities info

homeassistant/helpers/llm.py

@@ -658,19 +658,27 @@ def _get_exposed_entities(
 
         entity_entry = entity_registry.async_get(state.entity_id)
         names = [state.name]
+        device_name = None
         area_names = []
 
         if entity_entry is not None:
             names.extend(entity_entry.aliases)
+            device = (
+                device_registry.async_get(entity_entry.device_id)
+                if entity_entry.device_id
+                else None
+            )
+
+            if device:
+                device_name = device.name_by_user or device.name
+
             if entity_entry.area_id and (
                 area := area_registry.async_get_area(entity_entry.area_id)
             ):
                 # Entity is in area
                 area_names.append(area.name)
                 area_names.extend(area.aliases)
-            elif entity_entry.device_id and (
+            elif device:
-                device := device_registry.async_get(entity_entry.device_id)
-            ):
                 # Check device area
                 if device.area_id and (
                     area := area_registry.async_get_area(device.area_id)
@@ -691,6 +699,9 @@ def _get_exposed_entities(
                 if (parsed_utc := dt_util.parse_datetime(state.state)) is not None:
                     info["state"] = dt_util.as_local(parsed_utc).isoformat()
 
+        if device_name:
+            info["device"] = device_name
+
         if area_names:
             info["areas"] = ", ".join(area_names)
 

tests/helpers/test_llm.py

@@ -453,6 +453,7 @@ async def test_assist_api_prompt(
         connections={("test", "1234")},
         suggested_area="Test Area",
     )
+    device_registry.async_update_device(device.id, name_by_user="Friendly Device")
     area = area_registry.async_get_area_by_name("Test Area")
     area_registry.async_update(area.id, aliases=["Alternative name"])
     entry1 = entity_registry.async_get_or_create(
@@ -580,6 +581,7 @@ async def test_assist_api_prompt(
 - names: '1'
   domain: light
   state: unavailable
+  device: 1
   areas: Test Area 2
 - names: Kitchen
   domain: light
@@ -590,34 +592,42 @@ async def test_assist_api_prompt(
 - names: Living Room
   domain: light
   state: 'on'
+  device: Friendly Device
   areas: Test Area, Alternative name
 - names: Test Device, my test light
   domain: light
   state: unavailable
+  device: Friendly Device
   areas: Test Area, Alternative name
 - names: Test Device 2
   domain: light
   state: unavailable
+  device: Test Device 2
   areas: Test Area 2
 - names: Test Device 3
   domain: light
   state: unavailable
+  device: Test Device 3
   areas: Test Area 2
 - names: Test Device 4
   domain: light
   state: unavailable
+  device: Test Device 4
   areas: Test Area 2
 - names: Test Service
   domain: light
   state: unavailable
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Test Service
   domain: light
   state: unavailable
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Test Service
   domain: light
   state: unavailable
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Unnamed Device
   domain: light
@@ -627,32 +637,41 @@ async def test_assist_api_prompt(
     stateless_exposed_entities_prompt = """Static Context: An overview of the areas and the devices in this smart home:
 - names: '1'
   domain: light
+  device: 1
   areas: Test Area 2
 - names: Kitchen
   domain: light
 - names: Living Room
   domain: light
+  device: Friendly Device
   areas: Test Area, Alternative name
 - names: Test Device, my test light
   domain: light
+  device: Friendly Device
   areas: Test Area, Alternative name
 - names: Test Device 2
   domain: light
+  device: Test Device 2
   areas: Test Area 2
 - names: Test Device 3
   domain: light
+  device: Test Device 3
   areas: Test Area 2
 - names: Test Device 4
   domain: light
+  device: Test Device 4
   areas: Test Area 2
 - names: Test Service
   domain: light
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Test Service
   domain: light
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Test Service
   domain: light
+  device: Test Service
   areas: Test Area, Alternative name
 - names: Unnamed Device
   domain: light