Fling demonstrates solid naming conventions (verb_noun pattern: list_devices, build_app, install_app) and comprehensive tool coverage for Android automation. However, definition quality is inconsistent. Tool descriptions vary widely in detail, some are excellent (build_app, install_app with config field documentation), others are minimal (list_devices: 9 words). Input schemas are present for most tools but lack consistent parameter descriptions. Output schemas are not documented. Error handling guidance is minimal. The server follows good composition patterns (single responsibility per tool) but lacks LLM-optimized descriptions (target 50-200 chars; many are too brief). Average tool description ~120 chars, below the 194-char baseline for A+ tools.

• Expand descriptions on read-only tools (list_devices, screenshot, read_logs, dump_ui, wait_for) to 80-150 chars. Include WHEN to call and WHAT it reveals. E.g., 'Capture a screenshot from the device. Use before dump_ui to see visual state, or after tap_* to verify the action succeeded.'
• Document output schemas for all tools. Create a schema reference showing: build_app returns {apk_path, build_time_ms}, dump_ui returns {xml_hierarchy, element_count}, device_state returns {battery_percent, screen_on, connected_devices}.
• Add parameter descriptions to tap_by_* and wait_for tools. E.g., for tap_by_text: 'text: The visible text to search for (case-sensitive). Searches the accessibility tree.' For wait_for: 'timeout_ms: Maximum time to poll (1000-60000 ms). Default 10000.'
• Split deploy_and_run into separate tools or document it as a composition. If kept, clarify: 'Convenience tool that calls build_app, install_app, and launch_app in sequence. Returns final launch result. Fails if any step fails.'
• Add error recovery hints to tool descriptions. E.g., install_app: 'If device not found, call list_devices() first. If APK not found, call build_app() to generate it.' This guides LLM on multi-step recovery.