{
  "context": "This criteria evaluates how effectively the engineer uses @babel/core's high-level compilation API to transform JavaScript code. The focus is on correct usage of transformation functions, configuration with presets, source map generation, and error handling.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Core transformation API",
      "description": "Uses @babel/core's main transformation functions (transform, transformSync, or transformAsync) to compile JavaScript code",
      "max_score": 30
    },
    {
      "name": "Preset configuration",
      "description": "Configures @babel/preset-env in the presets array to enable target-based transformations",
      "max_score": 25
    },
    {
      "name": "Target specification",
      "description": "Passes targets configuration to @babel/preset-env (via presets options) to control which transformations are applied based on browser environments",
      "max_score": 20
    },
    {
      "name": "Source map generation",
      "description": "Enables source map generation using the sourceMaps option (or sourceMap) in the transformation configuration",
      "max_score": 15
    },
    {
      "name": "Error handling",
      "description": "Properly catches and handles transformation errors from @babel/core, providing meaningful error messages from the BabelError object",
      "max_score": 10
    }
  ]
}