homeassistant-assist
Control Home Assistant smart home devices using the Assist (Conversation) API. Use this skill when the user wants to control smart home entities - lights, switches, thermostats, covers, vacuums, media players, or any other smart device. Passes natural language directly to Home Assistant's built-in NLU for fast, token-efficient control.
What this skill does
# Home Assistant Assist
Control smart home devices by passing natural language to Home Assistant's Assist (Conversation) API. **Fire and forget** — trust Assist to handle intent parsing, entity resolution, and execution.
## When to Use This Skill
Use this skill when the user wants to **control or query any smart home device**. If it's in Home Assistant, Assist can handle it.
## How It Works
Pass the user's request directly to Assist:
```bash
curl -s -X POST "$HASS_SERVER/api/conversation/process" \
-H "Authorization: Bearer $HASS_TOKEN" \
-H "Content-Type: application/json" \
-d '{"text": "USER REQUEST HERE", "language": "en"}'
```
**Trust Assist.** It handles:
- Intent parsing
- Fuzzy entity name matching
- Area-aware commands
- Execution
- Error responses
## Handling Responses
**Just relay what Assist says.** The `response.speech.plain.speech` field contains the human-readable result.
- `"Turned on the light"` → Success, tell the user
- `"Sorry, I couldn't understand that"` → Assist couldn't parse it
- `"Sorry, there are multiple devices called X"` → Ambiguous name
**Don't over-interpret.** If Assist says it worked, it worked. Trust the response.
## When Assist Returns an Error
Only if Assist returns an error (`response_type: "error"`), you can **suggest HA-side improvements**:
| Error | Suggestion |
|-------|------------|
| `no_intent_match` | "HA didn't recognize that command" |
| `no_valid_targets` | "Try checking the entity name in HA, or add an alias" |
| Multiple devices | "There may be duplicate names — consider adding unique aliases in HA" |
These are **suggestions for improving HA config**, not skill failures. The skill did its job — it passed the request to Assist.
## Setup
Set environment variables in OpenClaw config:
```json
{
"env": {
"HASS_SERVER": "https://your-homeassistant-url",
"HASS_TOKEN": "your-long-lived-access-token"
}
}
```
Generate a token: Home Assistant → Profile → Long-Lived Access Tokens → Create Token
## API Reference
### Endpoint
```
POST /api/conversation/process
```
**Note:** Use `/api/conversation/process`, NOT `/api/services/conversation/process`.
### Request
```json
{
"text": "turn on the kitchen lights",
"language": "en"
}
```
### Response
```json
{
"response": {
"speech": {
"plain": {"speech": "Turned on the light"}
},
"response_type": "action_done",
"data": {
"success": [{"name": "Kitchen Light", "id": "light.kitchen"}],
"failed": []
}
}
}
```
## Philosophy
- **Trust Assist** — It knows the user's HA setup better than we do
- **Fire and forget** — Pass the request, relay the response
- **Don't troubleshoot** — If something doesn't work, suggest HA config improvements
- **Keep it simple** — One API call, natural language in, natural language out
## Links
- [Home Assistant Conversation API Docs](https://developers.home-assistant.io/docs/intent_conversation_api/)
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