{
  "kind": "Own editorial arithmetic expectations, not model outputs or hidden reasoning traces",
  "cases": [
    {
      "id": "complete",
      "input": {
        "packages": 17,
        "itemsPerPackage": 6,
        "removed": 15
      },
      "expected": 87,
      "conciseCheck": "17 * 6 = 102; 102 - 15 = 87; 87 + 15 = 102"
    },
    {
      "id": "incomplete",
      "input": {
        "items": 17,
        "discountPercent": 10,
        "unitPrice": null
      },
      "expected": null,
      "requiredQuestion": "Wie hoch ist der Stückpreis und worauf bezieht sich der Rabatt?"
    }
  ],
  "limits": [
    "No actual model request",
    "Visible explanation is not a complete internal reasoning trace",
    "Do not invent missing input"
  ]
}