{
  "context": "This criteria evaluates how well the engineer uses @better-scroll/core to implement direction locking and free scrolling behaviors. The focus is on correctly configuring scroll axes, direction locking thresholds, and free scroll mode to achieve the specified behaviors.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "BScroll instantiation",
      "description": "Creates BScroll instance using the 'new BScroll()' constructor with the appropriate wrapper element selector",
      "max_score": 15
    },
    {
      "name": "Scroll axes configuration",
      "description": "Correctly configures scrollX and scrollY options to enable appropriate axes: both true for free mode, or one true and one false for locked mode based on direction",
      "max_score": 25
    },
    {
      "name": "Free scroll mode",
      "description": "Sets the 'freeScroll' option to true when config.mode is 'free' to enable diagonal scrolling without direction locking",
      "max_score": 25
    },
    {
      "name": "Direction locking",
      "description": "Enables direction locking for locked mode by either: (1) not setting freeScroll (defaults to false), or (2) explicitly setting freeScroll to false, ensuring single-axis scrolling",
      "max_score": 20
    },
    {
      "name": "Configuration differentiation",
      "description": "Implements conditional logic that applies different BScroll configurations based on config.mode ('locked' vs 'free') and config.direction when applicable",
      "max_score": 10
    },
    {
      "name": "Return value",
      "description": "Returns the BScroll instance from the initializeScroller function so it can be used for further manipulation",
      "max_score": 5
    }
  ]
}