The server provides 5 tools with basic definitions and schemas, but falls short of production quality. Tool names follow verb_noun patterns (list_devices, get_device_state, set_device_state), which is correct. However, descriptions are minimal and lack context about when to use each tool or what it returns. Schemas are present for all tools but lack required field documentation, input parameters have no descriptions, violating the 100% baseline for A+ tools. Error handling is present in the code but does not guide recovery. The set_device_state tool has an enum constraint (on/off) which is good, but lacks required/optional parameter guidance. Protocol version in code is '2025-11-25' which does not match current spec (2026-07-28), indicating dated implementation. Overall, this is a fair but incomplete implementation typical of community tools.

• Add descriptions to all input parameters (device_id, state, brightness, attributes, scenario_name). Format: 'The device identifier (system UUID or human-readable name like "bedroom_light")' or 'The desired state. Only on or off are supported; brightness is controlled separately via the brightness parameter.'
• Document output schemas for all tools. E.g., 'Returns {"devices": [{"id": "...", "name": "...", "type": "light|switch|...", "state": "on|off", "brightness": 0-100}], "total": N}' for list_devices.
• Expand tool descriptions to 50 - 150 characters, explaining WHAT, WHEN, and what it RETURNS. E.g., 'List all smart home devices. Call before set_device_state to discover available device IDs. Returns device name, current state, and supported attributes.'
• Rename automation.runScenario → run_automation_scenario and automation.listScenarios → list_automation_scenarios to follow MCP snake_case convention.
• Add explicit parameter descriptions: for set_device_state, clarify which parameters are required vs optional, which devices support brightness/attributes, and document the attributes object schema (e.g., 'Attributes is a device-specific object; see list_devices output for schema.').
• Implement error guidance: if get_device_state fails with 'device not found', return 'Device "xyz" not found. Call list_devices to see available devices.' If runScenario fails, return specific reason (e.g., 'Scenario "xyz" not found. Available: morning_routine, night_mode, away_mode').
• Add dry-run or confirm pattern for set_device_state: offer optional 'confirm' or 'dry_run' parameter that logs what would change without executing, or implement a separate preview_device_state_change tool.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry