Critical failures across all dimensions. Two identical tool names (add_numbers) with conflicting schemas (integer vs number types) indicate incomplete or broken tool registration. Both tools have minimal descriptions (4 words, well below 20-char threshold). Input parameters lack descriptions entirely (null values visible in schema). No output schema documented. No error handling guidance. Source code shows only pseudocode examples, not actual working implementation. Tool definitions appear inferred rather than explicitly registered in production code.

• Rename one tool to avoid collision. E.g., 'add_integers' and 'add_decimals' or consolidate to single 'add_numbers' accepting union type with clear description of type coercion.
• Add parameter descriptions: 'a: The first number to add (integer)' and 'b: The second number to add (integer)'. Minimum 15 chars per param.
• Expand tool description to 50-150 chars: 'Add two numbers together and return the sum. Use this for basic arithmetic operations. Returns a number.'
• Document output schema explicitly: 'Returns: {"type": "number", "description": "The sum of a and b"}'.
• Provide actual, non-pseudocode implementation in the repository. Replace example code with real tool registration and handler code.