Two tools present with minimal quality. run_command has a 156-char description (acceptable length) but lacks input validation guidance, error handling, or security warnings for a destructive operation. add_numbers has a 54-char description (below 20-char hard floor for scoring) and trivial functionality. Neither tool documents output schemas. No parameter descriptions beyond bare type info. No error recovery guidance. Schemas are minimal JSON with types but lack constraints, ranges, or validation rules. This server reads as a bootcamp example, not production-ready.

• Add explicit output schema documentation: run_command returns {"output": string, "exit_code": int, "error": string|null}. Specify max output length (e.g. 10KB) to prevent context window exhaustion.
• For run_command, add parameter constraints: 'command (string, required): Shell command to execute. Allowed commands: ls, pwd, cat, grep, find. Dangerous commands (rm, dd, mkfs) are blocked. Max 500 chars.'
• Implement a command allowlist or deny-list for run_command. Reject rm, dd, mkfs, reboot, shutdown, etc. Return: 'Command blocked for safety: rm is not allowed.'
• Add error recovery guidance to run_command: 'If exit_code is non-zero, the command failed. Check the error field for details. Common fixes: verify file paths, check permissions, ensure the command exists.'
• For add_numbers, expand description to 100+ chars: 'Adds two floating-point numbers and returns their sum. Use this for arithmetic operations in multi-step calculations. Returns a float. Handles negative numbers and decimals.'
• Add parameter descriptions: 'a (float, required): The first number to add. Can be negative or decimal.' 'b (float, required): The second number to add. Can be negative or decimal.'