{
  "context": "This criteria evaluates how well the engineer uses the cron package's callback management features to implement a task scheduler with metrics tracking. The focus is on proper usage of onTick, addCallback(), and onComplete callback mechanisms.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "CronJob instantiation",
      "description": "Uses CronJob constructor or CronJob.from() to create a scheduled job with a valid cron expression (e.g., '*/5 * * * * *' for every 5 seconds)",
      "max_score": 20
    },
    {
      "name": "Primary onTick callback",
      "description": "Provides the main task callback as the onTick parameter in the CronJob constructor, ensuring it executes on each scheduled trigger",
      "max_score": 20
    },
    {
      "name": "Additional callback registration",
      "description": "Uses the addCallback() method to register the metrics tracking callback, demonstrating support for multiple callbacks per job",
      "max_score": 25
    },
    {
      "name": "onComplete callback",
      "description": "Provides an onComplete callback parameter in the CronJob constructor that executes when the job stops, displaying execution statistics",
      "max_score": 25
    },
    {
      "name": "Job lifecycle control",
      "description": "Uses start() and stop() methods to properly control the job execution lifecycle",
      "max_score": 10
    }
  ]
}