Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| HA_URL | Yes | URL of your Home Assistant instance (e.g., http://homeassistant.local:8123) | |
| HA_TOKEN | Yes | Your Home Assistant long-lived access token |
Schema
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
| create_automation | Guide a user through creating a Home Assistant automation This prompt provides a step-by-step guided conversation for creating a new automation in Home Assistant based on the specified trigger type. Args: trigger_type: The type of trigger for the automation (state, time, etc.) entity_id: Optional entity to use as the trigger source Returns: A list of messages for the interactive conversation |
| debug_automation | Help a user troubleshoot an automation that isn't working This prompt guides the user through the process of diagnosing and fixing issues with an existing Home Assistant automation. Args: automation_id: The entity ID of the automation to troubleshoot Returns: A list of messages for the interactive conversation |
| troubleshoot_entity | Guide a user through troubleshooting issues with an entity This prompt helps diagnose and resolve problems with a specific Home Assistant entity that isn't functioning correctly. Args: entity_id: The entity ID having issues Returns: A list of messages for the interactive conversation |
| routine_optimizer | Analyze usage patterns and suggest optimized routines based on actual behavior This prompt helps users analyze their Home Assistant usage patterns and create more efficient routines, automations, and schedules based on real usage data. Returns: A list of messages for the interactive conversation |
| automation_health_check | Review all automations, find conflicts, redundancies, or improvement opportunities This prompt helps users perform a comprehensive review of their Home Assistant automations to identify issues, optimize performance, and improve reliability. Returns: A list of messages for the interactive conversation |
| entity_naming_consistency | Audit entity names and suggest standardization improvements This prompt helps users analyze their entity naming conventions and create a more consistent, organized naming system across their Home Assistant instance. Returns: A list of messages for the interactive conversation |
| dashboard_layout_generator | Create optimized dashboards based on user preferences and usage patterns This prompt helps users design effective, user-friendly dashboards for their Home Assistant instance based on their specific needs. Returns: A list of messages for the interactive conversation |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
| hass://entities |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| get_version | Get the Home Assistant version Returns: A string with the Home Assistant version (e.g., "2025.3.0") |
| get_entity | Get the state of a Home Assistant entity with optional field filtering Args: entity_id: The entity ID to get (e.g. 'light.living_room') fields: Optional list of fields to include (e.g. ['state', 'attr.brightness']) detailed: If True, returns all entity fields without filtering Examples: entity_id="light.living_room" - basic state check entity_id="light.living_room", fields=["state", "attr.brightness"] - specific fields entity_id="light.living_room", detailed=True - all details |
| entity_action | Perform an action on a Home Assistant entity (on, off, toggle) Args: entity_id: The entity ID to control (e.g. 'light.living_room') action: The action to perform ('on', 'off', 'toggle') params: Optional dictionary of additional parameters for the service call Returns: The response from Home Assistant Examples: entity_id="light.living_room", action="on", params={"brightness": 255} entity_id="switch.garden_lights", action="off" entity_id="climate.living_room", action="on", params={"temperature": 22.5} Domain-Specific Parameters: - Lights: brightness (0-255), color_temp, rgb_color, transition, effect - Covers: position (0-100), tilt_position - Climate: temperature, target_temp_high, target_temp_low, hvac_mode - Media players: source, volume_level (0-1) |
| list_entities | Get a list of Home Assistant entities with optional filtering Args: domain: Optional domain to filter by (e.g., 'light', 'switch', 'sensor') search_query: Optional search term to filter entities by name, id, or attributes (Note: Does not support wildcards. To get all entities, leave this empty) limit: Maximum number of entities to return (default: 100) fields: Optional list of specific fields to include in each entity detailed: If True, returns all entity fields without filtering Returns: A list of entity dictionaries with lean formatting by default Examples: domain="light" - get all lights search_query="kitchen", limit=20 - search entities domain="sensor", detailed=True - full sensor details Best Practices: - Use lean format (default) for most operations - Prefer domain filtering over no filtering - For domain overviews, use domain_summary_tool instead of list_entities - Only request detailed=True when necessary for full attribute inspection - To get all entity types/domains, use list_entities without a domain filter, then extract domains from entity_ids |
| search_entities_tool | Search for entities matching a query string Args: query: The search query to match against entity IDs, names, and attributes. (Note: Does not support wildcards. To get all entities, leave this blank or use list_entities tool) limit: Maximum number of results to return (default: 20) Returns: A dictionary containing search results and metadata: - count: Total number of matching entities found - results: List of matching entities with essential information - domains: Map of domains with counts (e.g. {"light": 3, "sensor": 2}) Examples: query="temperature" - find temperature entities query="living room", limit=10 - find living room entities query="", limit=500 - list all entity types |
| domain_summary_tool | Get a summary of entities in a specific domain Args: domain: The domain to summarize (e.g., 'light', 'switch', 'sensor') example_limit: Maximum number of examples to include for each state Returns: A dictionary containing: - total_count: Number of entities in the domain - state_distribution: Count of entities in each state - examples: Sample entities for each state - common_attributes: Most frequently occurring attributes Examples: domain="light" - get light summary domain="climate", example_limit=5 - climate summary with more examples Best Practices: - Use this before retrieving all entities in a domain to understand what's available |
| system_overview | Get a comprehensive overview of the entire Home Assistant system Returns: A dictionary containing: - total_entities: Total count of all entities - domains: Dictionary of domains with their entity counts and state distributions - domain_samples: Representative sample entities for each domain (2-3 per domain) - domain_attributes: Common attributes for each domain - area_distribution: Entities grouped by area (if available) Examples: Returns domain counts, sample entities, and common attributes Best Practices: - Use this as the first call when exploring an unfamiliar Home Assistant instance - Perfect for building context about the structure of the smart home - After getting an overview, use domain_summary_tool to dig deeper into specific domains |
| list_automations | Get a list of all automations from Home Assistant This function retrieves all automations configured in Home Assistant, including their IDs, entity IDs, state, and display names. Returns: A list of automation dictionaries, each containing id, entity_id, state, and alias (friendly name) fields. Examples: Returns all automation objects with state and friendly names |
| restart_ha | Restart Home Assistant ⚠️ WARNING: Temporarily disrupts all Home Assistant operations Returns: Result of restart operation |
| call_service_tool | Call any Home Assistant service (low-level API access) Args: domain: The domain of the service (e.g., 'light', 'switch', 'automation') service: The service to call (e.g., 'turn_on', 'turn_off', 'toggle') data: Optional data to pass to the service (e.g., {'entity_id': 'light.living_room'}) Returns: The response from Home Assistant (usually empty for successful calls) Examples: domain='light', service='turn_on', data={'entity_id': 'light.x', 'brightness': 255} domain='automation', service='reload' domain='fan', service='set_percentage', data={'entity_id': 'fan.x', 'percentage': 50} |
| get_history | Get the history of an entity's state changes Args: entity_id: The entity ID to get history for hours: Number of hours of history to retrieve (default: 24) Returns: A dictionary containing: - entity_id: The entity ID requested - states: List of state objects with timestamps - count: Number of state changes found - first_changed: Timestamp of earliest state change - last_changed: Timestamp of most recent state change Examples: entity_id="light.living_room" - get 24h history entity_id="sensor.temperature", hours=168 - get 7 day history Best Practices: - Keep hours reasonable (24-72) for token efficiency - Use for entities with discrete state changes rather than continuously changing sensors - Consider the state distribution rather than every individual state |
| get_error_log | Get the Home Assistant error log for troubleshooting Returns: A dictionary containing: - log_text: The full error log text - error_count: Number of ERROR entries found - warning_count: Number of WARNING entries found - integration_mentions: Map of integration names to mention counts - error: Error message if retrieval failed Examples: Returns errors, warnings count and integration mentions Best Practices: - Use this tool when troubleshooting specific Home Assistant errors - Look for patterns in repeated errors - Pay attention to timestamps to correlate errors with events - Focus on integrations with many mentions in the log |