{
  "context": "This evaluation criteria assesses how well the engineer uses @babel/preset-env and @babel/core to implement target-based JavaScript transformation. The focus is on correctly configuring preset-env with target specifications and leveraging its automatic plugin selection capabilities.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Uses @babel/core",
      "description": "Uses @babel/core transformation API (transform, transformSync, or transformAsync) to perform the code transformation",
      "max_score": 15
    },
    {
      "name": "Configures @babel/preset-env",
      "description": "Includes @babel/preset-env in the presets configuration array passed to the Babel transformation",
      "max_score": 20
    },
    {
      "name": "Passes targets option",
      "description": "Correctly passes the targets option to @babel/preset-env configuration, enabling target-based transformation",
      "max_score": 20
    },
    {
      "name": "Handles modules option",
      "description": "Correctly configures the modules option in @babel/preset-env to control module format transformation (e.g., 'commonjs', false for ESM)",
      "max_score": 15
    },
    {
      "name": "Enables debug mode",
      "description": "Properly configures debug option in @babel/preset-env when requested to expose transformation metadata",
      "max_score": 10
    },
    {
      "name": "Handles source maps",
      "description": "Correctly enables source map generation through Babel's sourceMaps option when requested",
      "max_score": 10
    },
    {
      "name": "Returns correct output",
      "description": "Returns a result object with the transformed code and properly extracts source maps and metadata when available",
      "max_score": 10
    }
  ]
}