{
  "synthetic_example": true,
  "input_records": 5,
  "accepted_records": 2,
  "rejected_records": 3,
  "counts_reconcile": true,
  "duplicate_policy": "Reject subsequent duplicate of an accepted SKU; do not infer or merge",
  "rejections": [
    {
      "source_line": 4,
      "sku": "DEMO-001",
      "reason": "duplicate_sku"
    },
    {
      "source_line": 5,
      "sku": "DEMO-003",
      "reason": "invalid_scalar"
    },
    {
      "source_line": 6,
      "sku": "",
      "reason": "required_field"
    }
  ]
}