{
  "context": "This criteria evaluates the engineer's proficiency in using workerpool's advanced promise features, specifically Promise.all() for concurrent execution, .cancel() for cancellation, .timeout() for time limits, and .always()/.finally() for cleanup operations. The assessment focuses on correct usage of these package-specific APIs.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Worker pool creation",
      "description": "Creates a worker pool using workerpool.pool() and properly manages its lifecycle (creation and termination)",
      "max_score": 10
    },
    {
      "name": "Promise.all() usage",
      "description": "Uses workerpool.Promise.all() to execute multiple tasks concurrently and wait for all results, correctly handling the returned array",
      "max_score": 20
    },
    {
      "name": "Task cancellation",
      "description": "Uses the .cancel() method on workerpool promises to cancel running tasks",
      "max_score": 20
    },
    {
      "name": "CancellationError detection",
      "description": "Properly detects cancellation errors using instanceof workerpool.Promise.CancellationError or similar error type checking",
      "max_score": 15
    },
    {
      "name": "Timeout implementation",
      "description": "Uses the .timeout() method on workerpool promises to enforce time limits on task execution",
      "max_score": 15
    },
    {
      "name": "TimeoutError detection",
      "description": "Properly detects timeout errors using instanceof workerpool.Promise.TimeoutError or similar error type checking",
      "max_score": 10
    },
    {
      "name": "Cleanup operations",
      "description": "Uses .always() or .finally() methods on workerpool promises to execute cleanup logic regardless of task outcome (success, failure, cancellation, or timeout)",
      "max_score": 10
    }
  ]
}