Single tool 'add' has a clear verb-noun name and basic schema with typed parameters. However, the description is extremely minimal (23 chars), barely meeting the 10-char floor but well below the 194-char baseline for production tools. Parameter descriptions are present but terse (12-13 chars each). No output schema is documented, the response structure is inferred from code but not declared in tool metadata. No error handling guidance, no idempotency hints, no composition context. The tool is trivial (arithmetic) and lacks the depth expected of production-grade definitions.

• Expand tool description to 100-200 chars: 'Adds two numbers together and returns the sum. Use this for arithmetic operations. Accepts integers and floats. Returns a single numeric result.'
• Document the output schema explicitly in tool metadata: { type: 'object', properties: { result: { type: 'number', description: 'The sum of a and b' } } }
• Enhance parameter descriptions: 'First number to add (integer or float, no limit)' and 'Second number to add (integer or float, no limit)'
• Add error handling for edge cases: return structured errors like { error: 'Invalid input: a must be a number, got string' } instead of exceptions
• If this is a demo, add 2-3 more tools (subtract, multiply, divide) to demonstrate tool composition and chaining patterns