The 'hello' tool is minimally defined. It has a trivial description (28 chars, below the 50-200 char LLM-optimized range), an empty input schema (no parameters, no type definitions), and no documented output schema. The tool does nothing useful, it returns a static greeting with no business logic, parameters, or error handling. This is a proof-of-concept stub, not a production tool.

• Rename 'hello' to an action verb (e.g., 'test_connection' or 'get_server_status') and expand description to 50-200 chars explaining when to call it and what it returns.
• Add explicit input schema with typed parameters (even if empty, declare it as type: 'object', properties: {}, required: []).
• Document output schema: specify that the response contains a 'content' array with 'type' and 'text' fields.
• Replace the static greeting with a real tool that provides value (e.g., server health check, version info, or capability discovery).
• Add error handling: catch exceptions, return structured error responses with recovery guidance (e.g., 'Server unavailable. Retry in 5 seconds.').