Math-server provides 5 simple arithmetic tools with basic schemas and minimal descriptions. All tools have input schemas with typed parameters (float) and descriptions, but descriptions are extremely terse (10-40 chars, well below the 50-200 char baseline for A+ tools). No output schemas documented. No error handling guidance beyond divide-by-zero check. Tools lack context about when to use them vs alternatives, and descriptions do not explain what the tool returns or its purpose in a multi-step workflow. Parameter descriptions are adequate but minimal. No tool annotations (readOnlyHint, idempotentHint). Overall structure is sound but quality is below production baseline.

• Expand tool descriptions to 50-150 chars. Example: 'add: Adds two floating-point numbers and returns the sum. Use for arithmetic operations in calculations. Returns a float result.'
• Document output schemas explicitly. Add a return type annotation or docstring: 'Returns: float, the result of the operation'.
• Add tool annotations to the schema. Mark all tools with readOnlyHint=true and idempotentHint=true so LLMs know they are safe to retry.
• Enhance parameter descriptions with constraints. Example: 'a: First number (float, any value including negative or zero)' and 'b: Divisor (float, must not be zero)'.
• Improve error messages in divide(). Instead of 'Cannot divide by zero', return 'Invalid divisor: cannot divide by zero. Provide a non-zero divisor and retry.'