{
  "context": "This evaluation assesses how well the engineer uses Snowpack's build system API to create a build watcher tool with watch mode and graceful shutdown capabilities.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Build function usage",
      "description": "Uses the `build()` function from Snowpack to execute the production build, passing appropriate command options",
      "max_score": 20
    },
    {
      "name": "Configuration creation",
      "description": "Uses `loadConfiguration()` or `createConfiguration()` to set up build configuration with the required options (buildOptions.out, buildOptions.clean, buildOptions.watch, buildOptions.sourcemap, buildOptions.baseUrl)",
      "max_score": 25
    },
    {
      "name": "Build result handling",
      "description": "Correctly captures and uses the `SnowpackBuildResult` returned by the `build()` function to access watch mode capabilities",
      "max_score": 10
    },
    {
      "name": "Watch mode callback",
      "description": "Implements the `onFileChange()` callback from the build result to handle file change events and log the changed file path",
      "max_score": 20
    },
    {
      "name": "Graceful shutdown",
      "description": "Uses the `shutdown()` method from the build result to cleanly terminate the build process when handling SIGINT signal",
      "max_score": 20
    },
    {
      "name": "Signal handling",
      "description": "Properly sets up SIGINT signal handler using `process.on('SIGINT', ...)` to enable graceful shutdown",
      "max_score": 5
    }
  ]
}