Three tools with basic descriptions but significant gaps. get_local_file_list and write_text_to_file have minimal parameter descriptions (only 1 param each with brief text). get_weather has a mock implementation returning hardcoded output. No input schemas visible in source, only parameter names inferred from function signatures. No output schemas documented. Error handling returns plain strings without recovery guidance. Tool descriptions are 50-100 chars, below the 194-char baseline for production tools. No parameter constraints (enums, ranges, formats). write_text_to_file has a misleading docstring (copy-paste error: 'Returns: A string containing the weather information'). No tool annotations (readOnlyHint, destructiveHint, idempotentHint). Composition is reasonable (three separate concerns), but parameter naming lacks type suffixes (e.g., 'path' should clarify it's a directory path, 'location' should clarify it's a city name).

• Add explicit JSON Schema input definitions with type, description, and constraints for each parameter. Example: {"path": {"type": "string", "description": "Absolute or relative directory path to list. Must exist and be readable."}}
• Document output schemas. For get_local_file_list, specify: returns string with newline-separated entries, each formatted as '[DIR|FILE] name size date'. For write_text_to_file, specify: returns {"success": bool, "path": string, "bytes_written": int}.
• Add parameter constraints: get_local_file_list path should validate existence; write_text_to_file file_name should restrict to safe characters (no path traversal); get_weather location should accept city names or coordinates.
• Implement real weather API integration for get_weather (OpenWeatherMap, WeatherAPI, etc.) instead of mock response. Or remove tool if not functional.
• Enhance error messages with recovery guidance: 'Path does not exist. Try listing parent directory with get_local_file_list(path="/home")' instead of bare 'Error: Path does not exist'.