This MCP server implements 4 study room booking tools with adequate schemas and descriptions, but lacks depth in error handling guidance and output documentation. All tools have explicit JSON Schema definitions with proper type declarations and parameter descriptions. Tool descriptions are present and reasonably clear (range 68-136 characters), meeting baseline length requirements. However, the server lacks documented output schemas, meaning LLMs cannot predict response structure for planning downstream actions. Error handling is basic, exceptions are caught but recovery guidance is minimal. The 'login' tool exposes credentials as parameters, violating the secret-injection pattern. The 'book_room' tool's room_name parameter is under-constrained (accepts free-form strings without validation). Overall, the tools are functional but would benefit from stricter parameter validation, output schema documentation, and clearer error recovery paths.

• Move credentials to server-side secret injection. Use keyring/environment variables to load username and password, then accept only a 'login_with_duo' tool that triggers browser-based auth. NEVER expose credentials as parameters.
• Document output schemas for all tools. Specify that search_rooms returns {rooms: [{name, id, capacity}], total_count}, book_room returns {reservation_id, confirmation_code, room_name, booked_start, booked_end}, and my_events returns {reservations: [{date, room, status, reservation_id, start_time, end_time}]}.
• Add explicit enum constraints for room_name. Store and validate against a known list of valid room names (e.g., 'Price Center Study Room 1', 'Price Center Study Room 2', ... 'Price Center Study Room 8'). Reject unknown room names with a helpful message listing available options.
• Enhance error messages with recovery guidance. Instead of 'Session expired: <e>', return 'Session expired. Your credentials have been invalidated. Call the login tool with your UCSD username to re-authenticate.' For booking failures, include 'The requested time slot is no longer available. Call search_rooms again to find open slots.'
• Add pagination parameters to search_rooms and my_events. Support limit (default 20, max 100) and offset/cursor to avoid context explosion when users query long date ranges or have many reservations.
• Return structured JSON responses instead of plain text. Modify call_tool to return JSON objects (not TextContent wrapping) so LLMs can reliably extract IDs and details for downstream operations.