{
  "context": "This evaluation assesses how well an engineer uses Symbol-based computed properties to implement custom iteration behavior. The focus is on proper usage of Symbol.iterator as a computed property key in object literals, which is the core capability handled by @babel/plugin-transform-computed-properties.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Symbol.iterator usage",
      "description": "Uses Symbol.iterator as a computed property key in the returned object (e.g., { [Symbol.iterator]: function() {...} })",
      "max_score": 30
    },
    {
      "name": "Computed property syntax",
      "description": "Correctly uses computed property syntax with square brackets [Symbol.iterator] rather than string keys or other approaches",
      "max_score": 25
    },
    {
      "name": "Iterator protocol",
      "description": "Returns an iterator object from Symbol.iterator method that implements the iterator protocol (has a next() method that returns {value, done} objects)",
      "max_score": 25
    },
    {
      "name": "Correct iteration logic",
      "description": "Implements the iteration logic correctly to generate the sequence from start to end with the given step, handling both positive and negative steps",
      "max_score": 15
    },
    {
      "name": "Error handling",
      "description": "Throws an error when step is 0 as specified in requirements",
      "max_score": 5
    }
  ]
}