# Domain Documentation

To get detailed documentation for any Home Assistant integration or entity domain, fetch from the official docs on demand.

## Fetching Domain Docs

```
https://raw.githubusercontent.com/home-assistant/home-assistant.io/refs/heads/current/source/_integrations/{domain}.markdown
```

Replace `{domain}` with the integration name (e.g., `light`, `climate`, `mqtt`).

If the MCP server registers resource URI templates for domain docs, prefer those over raw GitHub fetches.

## Common Domains

| Domain           | Description                                    |
| ---------------- | ---------------------------------------------- |
| `light`          | Light control (brightness, color, temperature) |
| `switch`         | On/off switches                                |
| `climate`        | HVAC and thermostat control                    |
| `cover`          | Blinds, shades, garage doors                   |
| `fan`            | Fan speed and oscillation                      |
| `lock`           | Door locks                                     |
| `media_player`   | Media playback and volume                      |
| `vacuum`         | Robot vacuum control                           |
| `sensor`         | Numeric and text sensors                       |
| `binary_sensor`  | On/off sensors (motion, door, window)          |
| `automation`     | Automation management                          |
| `script`         | Script management                              |
| `scene`          | Scene activation                               |
| `input_boolean`  | Toggle helpers                                 |
| `input_number`   | Numeric input helpers                          |
| `input_select`   | Dropdown helpers                               |
| `input_datetime` | Date/time helpers                              |
| `mqtt`           | MQTT broker and entities                       |
| `zha`            | Zigbee Home Automation                         |
| `notify`         | Notification services                          |
| `tts`            | Text-to-speech                                 |
| `camera`         | Camera feeds and snapshots                     |
| `weather`        | Weather forecasts                              |
| `person`         | Person/presence tracking                       |
| `zone`           | Geographic zones                               |
