{
  "context": "This criteria evaluates how well the engineer uses aioredis list operations to implement a task queue manager. The focus is on correct usage of Redis list commands through the aioredis client API.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Uses rpush",
      "description": "Uses the rpush method to add tasks to the end of the list in add_task and add_tasks methods. This ensures FIFO ordering for the queue.",
      "max_score": 20
    },
    {
      "name": "Uses lpop",
      "description": "Uses the lpop method to retrieve and remove tasks from the front of the list in get_next_task method. For get_tasks_batch, uses lpop in a loop or similar approach to get multiple items.",
      "max_score": 20
    },
    {
      "name": "Uses llen",
      "description": "Uses the llen method to get the current length of the list in get_queue_length method.",
      "max_score": 15
    },
    {
      "name": "Uses lrange",
      "description": "Uses the lrange method to retrieve tasks without removing them in peek_tasks method. Correctly passes start and end parameters.",
      "max_score": 15
    },
    {
      "name": "Uses ltrim",
      "description": "Uses the ltrim method to keep only a specific range of tasks in trim_queue method. Correctly calculates the range to keep the most recent tasks.",
      "max_score": 15
    },
    {
      "name": "Queue deletion",
      "description": "Uses the delete method (or del, or unlink) to remove the entire list key in clear_queue method.",
      "max_score": 10
    },
    {
      "name": "Async/await usage",
      "description": "All Redis operations are properly awaited with the await keyword since aioredis methods are coroutines.",
      "max_score": 5
    }
  ]
}