Critical gaps across all dimensions. Tool definitions are minimal: descriptions are extremely brief (5-30 chars, well below the 34-char p10 baseline), input schemas are either missing or incomplete, and parameter descriptions are absent. The 'shell' tool with DESTRUCTIVE risk has no input schema visible and no error handling guidance. 'apply_patch' and 'scheduled_task' lack documented output schemas. No tool demonstrates idempotency hints, permission gates, or recovery guidance. Overall, this reads as a proof-of-concept harness rather than production-grade tooling.

• Add complete JSON Schema input definitions for all 7 tools with explicit type, description, and constraint for every parameter. Example: {"type": "object", "properties": {"path": {"type": "string", "description": "Absolute file path (must exist and be readable)"}}, "required": ["path"]}
• For 'shell': 'Execute arbitrary shell commands in the agent's working directory. Returns stdout, stderr, and exit code. Use with caution, no sandboxing. Confirm destructive operations (rm, mv, etc.) before executing.'
• Add tool annotations: readOnlyHint for read_file, read_image, web_fetch; destructiveHint for shell, apply_patch, scheduled_task. Declare idempotentHint where applicable (e.g., read_file is idempotent).
• Document output schemas for each tool. Example for read_file: {"type": "object", "properties": {"content": {"type": "string"}, "size_bytes": {"type": "integer"}, "encoding": {"type": "string"}}, "required": ["content"]}
• Add error handling guidance: 'If file not found, return {"error": "FILE_NOT_FOUND", "path": "<path>", "suggestion": "Check path spelling or use list_files() to discover available files"}'. Categorize errors as retryable vs user-fixable.