MCP-BOS exhibits significant quality gaps across all four evaluated tools. While basic schemas are present for all tools, descriptions are either missing entirely (server_info, hello, my_tool) or minimal (add). Parameter descriptions are present but generic. No output schemas are documented. Error handling is absent. Tool naming follows basic conventions but lacks clear action verbs in some cases. The codebase shows a template/starter implementation rather than production-grade tool definitions. Most tools score 30-40 due to missing or trivial descriptions.

• Rewrite all tool descriptions in English. State what each tool does, when to use it, and what it returns. Target 50-200 characters per description. Example for hello: 'Send a personalized greeting message. Accepts an optional name; returns a formatted greeting string. Use this to generate friendly introductions.'
• Document output schemas for all tools. For server_info: return object with properties name (string), version (string), modules (array of strings). For hello: return object with property message (string). For add: return object with property result (integer).
• Rename my_tool to something specific like compute_operation or process_data, and add a clear 2 - 3 sentence description explaining what computation it performs and when to call it.
• Add min/max constraints to the add tool. Document: 'a and b must be integers in range [-2^31, 2^31-1].'
• Add error handling descriptions to all tools. E.g., for add: 'Returns an error if either parameter is not an integer or exceeds valid range. Error message will specify the constraint violation.'
• Implement per-tool error responses that guide recovery. Instead of silent failures, return structured errors with actionable guidance: {"error": "Invalid input", "reason": "param must be a string", "hint": "Check that param is not empty"}.
• Review tool naming. hello is acceptable but consider get_greeting for consistency with verb-noun patterns. server_info could be describe_server or get_server_info.
• Parameterize the greeting message in hello. Add an optional format parameter (e.g., 'formal', 'casual', 'emoji') to increase tool expressiveness and reduce need for tool variants.