{
  "context": "Tests whether the agent proactively applies Fastify best practices when building a CRUD order API. The task describes business requirements only -- it says nothing about JSON Schema validation, response schemas, additionalProperties, error handling, logging, or security. The agent should apply these on its own.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "body-schema-with-constraints",
      "description": "POST and PATCH routes define JSON Schema for the request body with required fields, type constraints (minLength, minimum, enum), and additionalProperties: false. The agent was NOT told to add schema validation.",
      "max_score": 14
    },
    {
      "name": "params-schema-defined",
      "description": "Routes with :id parameter define a params schema with type: 'string' (and optionally format: 'uuid'). The agent was NOT told to validate params.",
      "max_score": 8
    },
    {
      "name": "querystring-schema-defined",
      "description": "The GET /api/orders route defines a querystring schema for the optional status filter parameter with an enum constraint. The agent was NOT told to validate query params.",
      "max_score": 8
    },
    {
      "name": "response-schemas-defined",
      "description": "Routes define response schemas for success status codes (200, 201) to enable fast serialization and prevent accidental data leaks. The agent was NOT told to add response schemas.",
      "max_score": 12
    },
    {
      "name": "routes-in-registered-plugin",
      "description": "Order routes are defined inside a Fastify plugin function and registered with app.register(), not defined directly on the root app instance.",
      "max_score": 10
    },
    {
      "name": "custom-error-handler",
      "description": "A custom error handler is set via app.setErrorHandler() that returns structured error responses with code/message fields, distinguishing validation errors from application errors. The agent was NOT told to set up error handling.",
      "max_score": 10
    },
    {
      "name": "not-found-throws-404",
      "description": "GET /api/orders/:id and PATCH routes throw a proper 404 error (using @fastify/error or a custom error with statusCode) when the order is not found, rather than returning null or an empty response.",
      "max_score": 8
    },
    {
      "name": "pino-logger-not-console",
      "description": "Fastify is instantiated with logger: true or a logger config. Code uses request.log or app.log for logging, never console.log. The agent was NOT told about logging.",
      "max_score": 8
    },
    {
      "name": "async-return-pattern",
      "description": "Route handlers consistently use the return pattern (preferred) or reply.send() but never mix both in the same handler. No fire-and-forget promises.",
      "max_score": 6
    },
    {
      "name": "additional-properties-false",
      "description": "Object schemas use additionalProperties: false to reject unexpected fields. The agent was NOT told about mass assignment prevention.",
      "max_score": 8
    },
    {
      "name": "graceful-shutdown",
      "description": "Server startup code handles SIGINT/SIGTERM signals by calling app.close() for graceful shutdown. The agent was NOT told about shutdown handling.",
      "max_score": 8
    }
  ]
}