{
  "id": "order-clean",
  "name": "订单清洗：退款和重复单不算实收",
  "goal": "去重并保留异常检查所需输入。",
  "inputs": [
    {
      "orders": [
        {
          "id": "A",
          "amount": 200,
          "status": "完成"
        },
        {
          "id": "B",
          "amount": 100,
          "status": "退款"
        },
        {
          "id": "A",
          "amount": 200,
          "status": "完成"
        }
      ]
    }
  ],
  "expected": [
    200
  ],
  "transform": "x=>{const seen=new Set();return x.orders.reduce((s,o)=>{if(seen.has(o.id))return s;seen.add(o.id);return s+(o.status==='完成'?o.amount:0)},0)}",
  "acceptance": "1条样本必须与expected完全一致。版本：2026-10-20；仅虚构练习。"
}