{
  "context": "This criteria evaluates how well the engineer uses JavaScript/TypeScript dynamic module loading capabilities, specifically the dynamic import() syntax and Node.js error handling patterns for MODULE_NOT_FOUND errors. The focus is on proper usage of async/await patterns with dynamic imports and discriminating between different error types.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Dynamic import usage",
      "description": "Uses the dynamic import() syntax to load packages at runtime. The implementation should use import(packageName) within an async context rather than static imports or require().",
      "max_score": 30
    },
    {
      "name": "Error code checking",
      "description": "Checks the error.code property to identify MODULE_NOT_FOUND errors specifically. The implementation should access error.code and compare it to 'MODULE_NOT_FOUND' to distinguish missing packages from other errors.",
      "max_score": 25
    },
    {
      "name": "Async/await pattern",
      "description": "Uses async/await syntax correctly with the dynamic import(). The loadPackage method should be declared as async and properly await the import() call.",
      "max_score": 15
    },
    {
      "name": "Error discrimination",
      "description": "Distinguishes between MODULE_NOT_FOUND errors and other import errors by catching errors, checking the error code, and handling them differently (returning error object for MODULE_NOT_FOUND, re-throwing others).",
      "max_score": 20
    },
    {
      "name": "Result structure",
      "description": "Returns properly structured result objects with success: true/false and appropriate data (module property for success, error property for failure) as specified in the requirements.",
      "max_score": 10
    }
  ]
}