{
  "context": "Tests whether the agent proactively applies Fastify best practices across multiple concerns when building a file metadata service with a webhook endpoint. The task says nothing about schema validation, idempotency, error handling patterns, security plugins, or webhook-specific patterns. The agent should apply these on its own.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "strict-body-schemas",
      "description": "POST routes (file creation and webhook) define JSON Schema for request bodies with required fields, type constraints (format: 'uuid', enum for status/mimeType), and additionalProperties: false. The agent was NOT told to add validation.",
      "max_score": 12
    },
    {
      "name": "webhook-schema-strict",
      "description": "The webhook endpoint has a strict body schema that validates the incoming payload structure (fileId, status with enum, optional error) and rejects unexpected fields. The agent was NOT told to validate webhooks strictly.",
      "max_score": 10
    },
    {
      "name": "response-schemas",
      "description": "Routes define response schemas for success status codes to enable fast serialization and prevent data leaks. The agent was NOT told about response schemas.",
      "max_score": 8
    },
    {
      "name": "separate-plugins-for-files-and-webhooks",
      "description": "File routes and webhook routes are in separate Fastify plugins registered with app.register(), providing encapsulation. The agent was NOT told about plugin separation.",
      "max_score": 8
    },
    {
      "name": "custom-error-handler",
      "description": "A custom error handler via setErrorHandler returns structured errors with code/message, handling validation errors distinctly from 404s and server errors. The agent was NOT told about error handling.",
      "max_score": 10
    },
    {
      "name": "not-found-on-missing-resources",
      "description": "GET/PATCH/DELETE by ID routes throw proper 404 errors when the file record is not found. The agent was NOT told how to handle missing resources.",
      "max_score": 8
    },
    {
      "name": "webhook-idempotency",
      "description": "The webhook handler considers idempotency -- checking if the file status was already updated or using the fileId to prevent duplicate processing. The agent was NOT told about idempotency.",
      "max_score": 10
    },
    {
      "name": "webhook-event-logging",
      "description": "Webhook events are logged with structured context (fileId, new status, source) using request.log, not console.log. The agent was NOT told about webhook logging.",
      "max_score": 8
    },
    {
      "name": "pino-logger-enabled",
      "description": "Fastify is instantiated with logger enabled. All logging uses request.log or app.log. The agent was NOT told about logging.",
      "max_score": 6
    },
    {
      "name": "security-plugins",
      "description": "Agent registers at least one security plugin (@fastify/cors, @fastify/helmet, or @fastify/rate-limit). The agent was NOT told about security hardening.",
      "max_score": 8
    },
    {
      "name": "graceful-shutdown",
      "description": "Server handles SIGINT/SIGTERM signals by calling app.close(). The agent was NOT told about shutdown handling.",
      "max_score": 6
    },
    {
      "name": "querystring-schemas",
      "description": "The GET /api/files list route defines a querystring schema for filter parameters (uploadedBy, status, mimeType) with proper types. The agent was NOT told to validate query params.",
      "max_score": 6
    }
  ]
}