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• Add output schema documentation to check_calendar. Explicitly define response structure: { shared_data: Array<{ id: string, title: string, start: string, end: string, ... }>, available_slots?: Array<{ start: string, end: string }> }. This enables LLMs to plan operations and avoid hallucinating response fields.
• Validate date parameter format server-side. Add 'format': 'date' to JSON schema and return structured error: 'Invalid date: got "2025/01/15", must be YYYY-MM-DD format (e.g., 2025-01-15)'. This allows LLM self-correction.
• Expand contextual_integrity_enabled description to explain what filtering does. E.g., 'When true, filters events based on requester type (manager, peer, external) to show only appropriate details (e.g., peers see availability but not event titles). When false, returns all event details.' Include example: 'Set to false if you are the calendar owner checking your own schedule.'
• Add error handling guidance in the implementation. Catch date parse errors, context detection failures, and return JSON with { error: string, suggestion: string } instead of raising exceptions. Return suggestions like 'Could not detect context from message. Try being more explicit (e.g., "I'm a manager" or "I'm a colleague").'
• Document what shared_data contains by requester type. Add note: 'Output structure depends on contextual_integrity_enabled and requester_type. Manager sees { title, start, end, attendees }. Peer sees { start, end } only. Call with contextual_integrity_enabled=false to see all fields.' This makes the LLM aware of information asymmetry.