The server provides 9 mathematical tools with basic descriptions and input schemas. However, several critical quality issues prevent a higher score: (1) descriptions are generic and lack LLM-optimized guidance on when/why to use each tool; (2) parameter descriptions are minimal (typically 1-2 words); (3) no output schemas are documented; (4) error handling messages are functional but lack recovery guidance; (5) tool naming is functional but generic (add_numbers, subtract_numbers) with no verb-noun clarity issues, though descriptions don't explain LLM selection criteria. The server follows a basic pattern but lacks production-grade documentation and structured output guidance. Average per-tool score is ~51, placing this in the D/fair range.

• Expand tool descriptions from current 1-2 sentences to 50-150 characters explaining: (1) what the tool computes, (2) when an LLM should call it vs alternatives, (3) what it returns. Example: 'Add two numbers and return the sum as a float. Use when you need basic addition; for repeated addition of many values, prefer calculate_average().'
• Add explicit parameter descriptions to every input. Replace 'First number' with 'First operand (float, any value)' and 'Second number' with 'Second operand (float, any value). Must be non-zero for division.'
• Document output schemas in tool docstrings. Example: 'Returns: float. The arithmetic result rounded to 15 decimal places.'
• Enhance error messages with recovery guidance. Example: Instead of 'Cannot divide by zero', return 'Division by zero is undefined. Check that the divisor is not zero, or use a small epsilon value (e.g., 0.0001) if near-zero division is acceptable.'
• Remove file I/O from add_numbers. The tool should only perform arithmetic. If recipe content is needed, it should be a separate resource accessed via get_recipe_content(), which already exists.
• For factorial, add constraint to parameter: 'n' should state 'Non-negative integer (n >= 0). Factorial is undefined for negative values.'
• Consider adding a batch_calculate tool that accepts a list of operations (e.g., [(+, 2, 3), (*, 4, 5)]) and returns results. This would allow agents to compose multiple calculations in a single call, reducing latency.
• Add idempotent hints to tool annotations. These tools are all read-only and idempotent, explicitly marking them enables smarter agent retry logic.