Two tools with basic schemas and minimal descriptions. Both tools have input schemas with proper types (number, enum), but descriptions are extremely short (10-40 chars) and lack context for LLM selection. No output schema documentation. Error handling present in 'calculate' (divide-by-zero) but not generalized. Tool names are action-oriented ('add', 'calculate') but lack verb_noun clarity. No parameter descriptions beyond type hints. Schemas visible in code but descriptions fall well below the 50-200 char baseline for A+ tools.

• Expand tool descriptions to 50-200 chars. Example for 'add': 'Adds two numbers and returns the sum. Use when you need basic arithmetic addition. Returns a single numeric result.'
• Add parameter descriptions. Example: 'a: First number to add (any real number)', 'b: Second number to add (any real number)', 'operation: The arithmetic operation to perform (add, subtract, multiply, or divide)'.
• Document output schema explicitly. Example: 'Returns: {content: [{type: "text", text: string}]} where text is the numeric result as a string.'
• Rename tools to verb_noun pattern: 'add' → 'perform_addition', 'calculate' → 'perform_calculation' for clarity when many tools are available.
• Enhance error handling with recovery guidance. Example: 'Error: Cannot divide by zero. Check your inputs and retry with a non-zero divisor.'