Refactor-Duplicate-Validation

The model receives the prompt (and optional system message). The run uses scorer rubric_json_metrics with the JSON configuration below. Pass/fail and partial credit are determined entirely by that scorer against the model output; no human grading.

Return JSON only with keys refactor, rationale, tests. Refactor duplicated field validation branches into declarative validation rules while preserving first-error behavior.

{
  "metrics": {
    "visible": {
      "checks": [
        {
          "contains": [
            "validation rules"
          ]
        },
        {
          "contains": [
            "duplicated"
          ]
        },
        {
          "contains": [
            "field"
          ]
        }
      ]
    },
    "hidden": {
      "checks": [
        {
          "contains": [
            "first error"
          ]
        },
        {
          "contains": [
            "message"
          ]
        },
        {
          "contains": [
            "order"
          ]
        }
      ]
    },
    "intent": {
      "checks": [
        {
          "contains": [
            "declarative"
          ]
        },
        {
          "contains": [
            "DRY"
          ]
        },
        {
          "contains": [
            "validation"
          ]
        }
      ]
    }
  }
}