{
  "id": "C018",
  "synthetic": true,
  "checked_at": "2026-10-24",
  "input": {
    "limit_bytes": 10,
    "payloads": [
      "中aaaaaa",
      "中aaaaaaa",
      "中aaaaaaaa"
    ],
    "expected": {
      "lengths": [
        9,
        10,
        11
      ],
      "accepted": [
        true,
        true,
        false
      ],
      "upstream_calls": 2
    },
    "chunked_policy": "buffer_then_decide"
  }
}