mcp-greet is a minimal demonstration server with two simple read-only tools. Both tools lack parameter descriptions entirely, and tool descriptions are generic and unhelpfully brief. No output schemas are documented. The server is functionally minimal and does not follow production-grade tool definition patterns. Per the rubric baseline, 100% of A+ tools have docstrings and parameter descriptions, this server has neither.

• Add a 10 - 100 character description to each tool. For 'add_numbers', describe the operation: 'Add two floating-point numbers and return the result.' For 'ping', explain purpose: 'Echo back a message to verify server connectivity.'
• Add a description to every input parameter. For 'add_numbers': 'a: The first number (float). b: The second number (float).' For 'ping': 'msg: The message to echo back (string, default: "hello").'
• Document the return type and schema for each tool. For 'add_numbers', specify: 'Returns a dict with keys: a (float), b (float), result (float).' For 'ping', specify: 'Returns a string formatted as "pong: {msg}".'
• Consider renaming 'ping' to 'echo_message' or 'verify_connectivity' to make its purpose clearer to LLMs reading the tool name.
• Add parameter constraints if appropriate: for 'add_numbers', consider documenting if there are numeric bounds or precision expectations.

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

• Relies on Dynamic Client Registration (deprecated) - use Client ID Metadata Documents (CIMD)