This server exposes only 2 tools with minimal schema documentation. browser_take_screenshot has a basic input schema with 3 parameters (filename, scale, type), all strings with brief descriptions. browser_close has an empty input schema. Neither tool has descriptions exceeding 20 characters (screenshot: 54 chars, close: 27 chars), which meets the minimum threshold but lacks actionable context for LLM selection. No output schemas are documented. No error handling guidance. No parameter constraints (enums, ranges, patterns). The naming is verb-first (good), but descriptions do not explain WHEN to use each tool, what they return, or how they chain. No tool annotations (readOnlyHint, destructiveHint). This is a minimal, underdeveloped tool interface.

• Add output schema documentation for both tools. browser_take_screenshot should document return fields (e.g., file_path, size_bytes, timestamp). browser_close should document success confirmation.
• Convert 'scale' and 'type' parameters to enums with valid options (e.g., scale: ['css', 'device'], type: ['png', 'jpeg']). Add format constraints to 'filename' (e.g., 'must be a valid file path, relative or absolute').
• Expand tool descriptions to 100 - 200 characters. Example: 'Take a screenshot of the current browser viewport and save to a file. Returns the file path and size. Use before each action to verify browser state.'
• Add tool annotations: mark browser_take_screenshot with readOnlyHint=true (does not modify state); mark browser_close with destructiveHint=true (irreversible). This guides LLM planning.
• Implement error handling: return structured errors with recovery hints. E.g., 'File path invalid: /root/forbidden. Try a path in the current working directory.' or 'Browser not running. Call browser_launch first.'