Server has 7 tools with basic descriptions and input schemas, but significant gaps limit production readiness. Tool names follow verb_noun convention (list_logs, read_log_head, get_rooms, etc.), which is good. However, descriptions are inconsistent in depth and actionability. Parameter descriptions exist but lack constraint details (ranges, formats, enums). Output schemas are not documented. Error handling returns plain strings rather than structured guidance. No tool annotations (readOnlyHint, destructiveHint). Security sanitization for path traversal is present in read_log_head but not systematized. Overall, this is a functional but incomplete implementation typical of community servers.

• Add output schema documentation to every tool. Declare return type (string, object, array) and field names/types. E.g., get_rooms returns {rooms: string[]}; get_light_state returns {room: string, state: 'ON'|'OFF'}.
• Rewrite light_on and light_off descriptions to explicitly state 'This tool modifies state and turns the light ON/OFF. Calls are idempotent.' This signals to LLMs that retries are safe.
• Add tool annotations via FastMCP: @mcp.tool(readOnlyHint=True) for list_logs, read_log_head, get_rooms, get_light_state, get_temperature; @mcp.tool(destructiveHint=True, idempotentHint=True) for light_on, light_off.
• Enhance error messages with recovery guidance. E.g., read_log_head should return 'File not found. Call list_logs() to see available files.' instead of bare error.
• Add enum constraint to 'room' parameter. Query get_rooms() at server startup, cache valid room names, and declare them as an enum in the schema. Or document format: 'Room name must match output of get_rooms().' with validation that rejects invalid values with a helpful error.