Critical failures across naming, descriptions, and schemas. Tool list contains 14 entries but only 6 unique tools (read_file, write_file, get_current_time, calculate, search_files, get_weather) with massive duplication (read_file appears 4x, calculate 4x, get_weather 3x). Descriptions are minimal (10-50 chars, well below 194-char baseline). Schemas present but sparse, most parameters lack type constraints, enums, or validation guidance. No error handling, no output schema documentation, no security considerations. Tool composition is poor: read_file and write_file lack path traversal protection hints; calculate lacks expression format constraints; get_weather lacks location validation. No pagination, no idempotency markers, no recovery guidance.

• Deduplicate tool registry. Remove duplicate entries for read_file, calculate, and get_weather. Maintain a single canonical definition per tool.
• Expand descriptions to 100-200 chars. Example: 'Read file contents from disk. Accepts absolute or relative paths. Returns raw file text. Use for code review, log analysis, or config inspection. Fails if file not found or unreadable.'
• Add parameter constraints: calculate expression should document allowed operators and max length; get_weather location should be an enum or include validation pattern; write_file path should warn against traversal attacks.
• Document output schemas for each tool. Specify return type (string, number, object), field names, and structure. E.g., calculate returns {result: number, expression: string}.
• Add error handling with recovery hints. E.g., 'write_file failed: permission denied. Check file permissions or choose a different directory.' Include actionable next steps.