TuriX-CUA is a macOS automation agent with 14 tools spanning UI automation (Click, Drag, scroll_up/down), system control (open_app, run_apple_script, Hotkey), and task management (record_info, wait, done). Tools are defined in src/agent/output_schemas.py with basic JSON Schema. However, CRITICAL ISSUES severely limit quality: (1) Tool names violate verb_noun convention, 'RightSingle', 'move_mouse', 'scroll_up/down', 'multi_Hotkey' are inconsistent and lack clarity. 'RightSingle' is ambiguous (does it right-click once? toggle?). 'scroll_up' and 'scroll_down' are redundant when a single 'scroll' tool with signed 'dy' parameter would suffice. (2) Descriptions are minimal (10-30 chars) and lack WHEN-to-use guidance. E.g., 'Click at a specified position on screen' does not explain when to use Click vs RightSingle, or what happens if coordinates are invalid. (3) Input schemas present but incomplete: no type constraints on 'position' array (should specify array length=2, items=number in range [0,1000]). The 'dy' and 'dx' parameters in scroll tools lack min/max bounds. (4) No output schemas documented anywhere. Tools return success/failure implicitly but LLM has no structure to parse. (5) No error handling guidance, what if a click misses a UI element? What if the app fails to open? (6) No composition aids, tools like scroll_up/down and move_mouse operate at primitive levels; no higher-level tools like 'find_element_and_click' or 'navigate_to_url'. (7) Security: run_apple_script accepts arbitrary script strings with no sanitization hints; record_info writes files with user-controlled paths (path traversal risk). Code review in examples/main.py shows LangChain integration but no MCP server scaffolding visible, transport and protocol details unknown.

• Rename tools to follow verb_noun convention: 'RightSingle' → 'right_click', 'multi_Hotkey' → 'press_hotkey_sequence', 'move_mouse' → 'move_cursor'. Ensure action verb comes first.
• Consolidate scroll_up and scroll_down into a single 'scroll' tool with parameters: position [x, y], dy (int, -100 to +100, negative=up, positive=down), dx (int, optional). Document in description: 'Scroll at position. Negative dy scrolls up; positive scrolls down.'
• Expand descriptions to 50-150 chars each. For Click: 'Click at normalized x,y coordinates (0-1000 range). Use for button clicks, link activation, or text field focus. Returns true if successful, false if coordinates out of bounds or no clickable element.'
• Add explicit parameter constraints in schema: position array with minItems=2, maxItems=2, items.minimum=0, items.maximum=1000. Add bounds to dx/dy: minimum=-100, maximum=100. Add maxLength to 'text' and 'script' parameters.
• Document output schemas for every tool. E.g., Click returns {success: boolean, message: string, pixel_position: [x, y], element_type: string?}. Enables LLM to parse results and chain tools.
• Add error handling guidance in descriptions. E.g., for Click: 'If click fails (no clickable element), consider scrolling to reveal element first, then retry Click. If coordinates are invalid, receive error with valid range.'
• Implement input validation with actionable error messages. E.g., 'Invalid position [1050, 500]: x must be 0-1000. Use normalized coordinates based on screen resolution.' and 'Invalid dx -150: must be -100 to 100.'

Inferred effective spec: 2025-06-18+.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry