Three tools with complete JSON schemas and clear descriptions. Naming follows verb_noun convention (get_*, create_). However, descriptions are brief (34-56 chars, below the 50-200 char LLM-optimized baseline), parameter descriptions lack detail on constraints and formats, and error handling is not visible in the code. No output schema documentation. Role-based access control is implemented server-side (good security), but tool composition could be tighter, create_appointment requires both start/end times rather than accepting duration, forcing the agent to calculate.

• Expand tool descriptions to 80-150 chars. Example: 'Get available appointment slots for a doctor on a specific date. Returns a list of open time slots with start/end times. Call this before create_appointment to find valid times.'
• Convert 'preferred_slot' and 'timeframe' to enum constraints in the schema. Replace free-form string descriptions with explicit allowed values: enum: ['morning', 'afternoon'] and enum: ['today', 'yesterday', 'tomorrow'].
• Document output schemas inline or in a separate schema registry. Specify that AvailabilityResponse returns {slots: [{start: string, end: string, available: bool}], doctor_id: string} so agents know what fields to extract.
• Add parameter descriptions for all fields. E.g., 'start: ISO 8601 datetime (YYYY-MM-DDTHH:MM:SSZ) when the appointment begins. Must be within doctor availability hours.'
• Add error recovery guidance to descriptions. E.g., 'If doctor not found, call search_doctors() with a partial name. If no slots available, try a different date or call get_doctor_availability with a different preferred_slot.'

Inferred effective spec: <=2025-11-25.

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