Server has 13 tools with complete Zod schemas and descriptions. Naming follows verb_noun convention (screenshot, click, type_text, etc.). Descriptions are present but brief (avg ~60 chars, below the 194-char baseline). Parameter descriptions are minimal, many lack context on constraints, ranges, or when to use them. Output handling is inconsistent: screenshot returns structured image+text; most others return raw JSON. No error recovery guidance. Missing idempotency hints for destructive operations (click, drag, type_text). No permission gates or audit trail patterns.

• Expand parameter descriptions to include valid ranges, units, and constraints. E.g., 'X coordinate (0 - screen_width pixels)' or 'Delay in milliseconds (1 - 5000, default 20).'
• Add error recovery guidance to tool descriptions. E.g., 'If permission denied, grant Screen Recording in System Settings > Privacy & Security, then restart the server.'
• Standardize output format across all tools. Return structured objects with typed fields (success: bool, message: string, data: object) instead of raw JSON.stringify().
• Add idempotency hints to destructive tools. E.g., 'Clicking the same coordinates twice may trigger double-click; use double_click tool for intentional double-clicks.'
• Implement permission checks and audit logging. Log tool invocations with timestamp, caller, tool name, and parameters for compliance and debugging.