{
  "context": "This evaluation assesses the engineer's ability to use asciimatics' double-buffered screen rendering system to create a flicker-free animated terminal display. The focus is on proper use of the Screen API for buffer management and display updates.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Screen initialization",
      "description": "Uses Screen.open() or Screen.wrapper() to properly initialize and manage the screen context with automatic cleanup",
      "max_score": 15
    },
    {
      "name": "Buffer clearing",
      "description": "Calls clear_buffer() at the start to initialize the screen buffer with appropriate foreground, attribute, and background color parameters",
      "max_score": 15
    },
    {
      "name": "Text positioning",
      "description": "Uses print_at() method to correctly position all text elements (counter, status, progress bar) at the specified coordinates with appropriate color and attribute parameters",
      "max_score": 25
    },
    {
      "name": "Buffer refresh",
      "description": "Calls refresh() after each complete frame update to flush the double-buffer to the physical screen, ensuring all changes are applied atomically",
      "max_score": 25
    },
    {
      "name": "Update sequence",
      "description": "Follows the correct double-buffering pattern: update all display elements in the buffer first, then call refresh() once per frame (not after each individual print_at() call)",
      "max_score": 20
    }
  ]
}