{
  "context": "This criteria evaluates how well the engineer uses metro-memory-fs's file writing capabilities to implement a configuration manager. The focus is on correct usage of writeFileSync and writeFile methods with proper encoding, data serialization, and error handling.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Uses writeFileSync",
      "description": "Implementation uses writeFileSync method from metro-memory-fs for synchronous file writing operations",
      "max_score": 25
    },
    {
      "name": "Uses writeFile",
      "description": "Implementation uses writeFile method from metro-memory-fs for asynchronous file writing with proper callback handling",
      "max_score": 25
    },
    {
      "name": "JSON serialization",
      "description": "Correctly serializes JavaScript objects to JSON format using JSON.stringify before writing to file",
      "max_score": 20
    },
    {
      "name": "Encoding specification",
      "description": "Explicitly specifies 'utf8' encoding when writing text data to ensure proper character encoding",
      "max_score": 15
    },
    {
      "name": "Error propagation",
      "description": "Properly propagates errors from writeFileSync (via throw) and writeFile (via callback) to calling code",
      "max_score": 15
    }
  ]
}