This MCP server has critical definition quality gaps. Tool descriptions are present but generic (avg ~60 chars, well below the 194-char baseline). Input schemas are minimal or missing type information, most tools declare only object parameters without field-level types or descriptions. No output schemas are documented. Parameter descriptions are sparse or absent. The server appears to be a FastAPI demo for webhook handling, but tool definitions lack the rigor needed for reliable LLM invocation. No tool annotations (readOnlyHint, destructiveHint, idempotentHint) are present despite clear risk levels (WRITE, DESTRUCTIVE). Error handling and recovery guidance are absent.

• Add complete output schemas for all tools. Example: get_events should return {type: 'object', properties: {events: {type: 'array', items: {type: 'object', properties: {id, type, timestamp, data}}}, total_count: {type: 'integer'}}}.
• Expand input schemas with nested field types and descriptions. For 'data' parameter in send_event, specify required fields and their types. For 'request' in receive_webhook, document expected HTTP headers and body structure.
• Add tool annotations: readOnlyHint=true for health_check, get_events, get_partner_status, check_mesaya_health, dashboard; destructiveHint=true for clear_events; idempotentHint=true for health checks.
• Implement confirmation pattern for clear_events: add a 'confirm' boolean parameter (default false) and require explicit confirmation before deletion. Return a dry-run result first.
• Enhance parameter descriptions with validation rules and examples. E.g., 'events: array of event type strings (e.g., payment.created, payment.succeeded, payment.failed) to subscribe to' and 'target_url: optional override URL (must be valid HTTPS URI)' for send_event.