Agent skill
home-assistant
Control smart home devices, query sensor data, and manage automations via Home Assistant. Use whenever the user asks about lights, climate, locks, sensors, media players, or any home automation task.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/home-assistant
SKILL.md
Home Assistant Control via ha-mcp
You have access to Home Assistant through MCP tools. These tools connect to ha-mcp, which provides fuzzy entity search, device control, and state queries.
Finding entities
Use mcp__home-assistant__ha_search_entities to discover entities. It supports fuzzy matching — you don't need exact entity IDs:
{ "search_query": "bedroom lights" }
{ "search_query": "living room temperature" }
{ "search_query": "front door lock" }
{ "search_query": "thermostat" }
Filter by type for precision:
{ "search_query": "kitchen", "entity_type": "light" }
{ "search_query": "humidity", "entity_type": "sensor" }
Controlling devices
Use mcp__home-assistant__ha_call_service with the appropriate domain and service:
Lights
{ "domain": "light", "service": "turn_on", "entity_id": "light.bedroom_ceiling" }
{ "domain": "light", "service": "turn_on", "entity_id": "light.bedroom_ceiling", "data": { "brightness": 128 } }
{ "domain": "light", "service": "turn_on", "entity_id": "light.bedroom_ceiling", "data": { "color_temp_kelvin": 3000 } }
{ "domain": "light", "service": "turn_off", "entity_id": "light.bedroom_ceiling" }
Climate
{ "domain": "climate", "service": "set_temperature", "entity_id": "climate.thermostat", "data": { "temperature": 72 } }
{ "domain": "climate", "service": "set_hvac_mode", "entity_id": "climate.thermostat", "data": { "hvac_mode": "heat" } }
Locks
{ "domain": "lock", "service": "lock", "entity_id": "lock.front_door" }
{ "domain": "lock", "service": "unlock", "entity_id": "lock.front_door" }
Switches & covers
{ "domain": "switch", "service": "turn_on", "entity_id": "switch.office_fan" }
{ "domain": "cover", "service": "open_cover", "entity_id": "cover.garage_door" }
{ "domain": "cover", "service": "close_cover", "entity_id": "cover.garage_door" }
Media players
{ "domain": "media_player", "service": "media_play", "entity_id": "media_player.living_room" }
{ "domain": "media_player", "service": "media_pause", "entity_id": "media_player.living_room" }
{ "domain": "media_player", "service": "volume_set", "entity_id": "media_player.living_room", "data": { "volume_level": 0.5 } }
Querying state
Use mcp__home-assistant__ha_get_state to read current values:
{ "entity_id": "sensor.living_room_temperature" }
{ "entity_id": "light.bedroom_ceiling" }
{ "entity_id": "lock.front_door" }
Workflow
- Search first if you don't know the exact entity ID. The fuzzy search handles typos and partial names.
- Control using the entity IDs returned by search.
- Verify with
ha_get_stateif you need to confirm the action took effect.
Room-scoped requests
When a user says "the lights" without specifying a room, check the message context for a room hint (e.g., voice requests include the originating room). Search for entities in that room:
{ "search_query": "bedroom light", "entity_type": "light" }
Bulk operations
For "turn off all lights", search broadly then call service for each:
{ "search_query": "light", "entity_type": "light" }
Then call turn_off for each entity. Or use the all entity if available:
{ "domain": "light", "service": "turn_off", "entity_id": "all" }
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