Server provides 4 well-named, read-only tools with adequate descriptions and basic input schemas. Naming follows verb_noun convention (get_*). All tool descriptions are present and reasonably detailed (avg ~100 chars). Input schemas declare parameter types and include reasonable descriptions. However, output schemas are NOT documented, there is no specification of what fields the tools return or their types. Error handling is present but generic (returns error strings rather than structured errors with recovery guidance). No parameter validation constraints (enums, min/max bounds). Formatters produce human-readable markdown but the LLM-facing output schema is undefined. All tools are READ_ONLY and well-isolated, supporting good composition.

• Add explicit JSON Schema output documentation for all tools. Define what fields are returned (e.g., events array with id, title, start, finish, format, location, etc.), their types, and structure. Use a TypedDict or dataclass to make the contract explicit.
• Add min/max constraints to all integer parameters in the input schema. E.g., for 'limit': {'type': 'integer', 'description': '...', 'minimum': 1, 'maximum': 100, 'default': 10}. Let JSON Schema enforce bounds, not just code.
• Replace raw error strings with structured error objects that include recovery hints. E.g., instead of returning 'HTTP Error: 404 - Not found', return {'error': 'event_not_found', 'message': 'Event ID not found. Call get_upcoming_ctfs() to list available events.', 'recovery_action': 'search'}.
• Add 'enum' constraints to any parameter with a fixed set of valid values (none currently, but future enhancements like 'sort_by' should use enums).
• Enhance parameter descriptions with dependency hints. E.g., for event_id: 'The CTFtime numeric event ID. Call get_upcoming_ctfs() or get_past_ctfs() to discover event IDs, or search by event name using a search_events tool (if available).'
• Document the pagination behavior for list tools. 'Limit defaults to 10; max 100. Results are not paginated. For large result sets, increase limit (up to 100) or narrow the date range (days_ahead, days_back).' If true pagination is needed, implement offset/limit or cursor-based pagination.
• Add 'days_ahead' and 'days_back' constraints to schema with minimum/maximum and clarified units (days, not hours or seconds). E.g., 'days_ahead': {'type': 'integer', 'minimum': 1, 'maximum': 365, 'default': 30, 'description': 'Number of days to look ahead (1-365, default 30)'}.