{
  "tail": "3",
  "note": "URL 輪換表：正常推第1條；耗盡轉下一條，到尾返第1條。改 URL 直接改呢個檔，watcher 每次重讀即生效。 每條 URL 有 profile 欄位（換 URL 時一齊換 profile）。",
  "urls": [
    {
      "label": "A3",
      "url": "https://arena.ai/agent/01a0fbdd-52ff-7798-85e3-85407d7865ff",
      "profile": "A3"
    },
    {
      "label": "A13",
      "url": "https://arena.ai/agent/01a10f6a-a434-7e90-be81-4c96cc746bf2",
      "profile": "A3"
    },
    {
      "label": "A23",
      "url": "https://arena.ai/agent/01a10f71-dcd1-72b9-a62b-b848bfe820fa",
      "profile": "A3"
    },
    {
      "label": "A33",
      "url": "https://arena.ai/agent/01a10f73-04d0-7d2d-82dd-042b376c1971",
      "profile": "A3"
    },
    {
      "label": "A43",
      "url": "https://arena.ai/agent/01a10f83-6405-734a-abf3-3e9dfa69aa1d",
      "profile": "A3"
    },
    {
      "label": "A53",
      "url": "https://arena.ai/agent/01a10fd9-1430-7374-8a5b-f482101b60a3",
      "profile": "A3"
    },
    {
      "label": "A63",
      "url": "https://arena.ai/agent/01a1105c-0f1d-7676-8b70-3afd76845e98",
      "profile": "A3"
    },
    {
      "label": "A73",
      "url": "https://arena.ai/agent/01a10ffd-5a53-783b-8b69-924f718f5124",
      "profile": "A3"
    },
    {
      "label": "A83",
      "url": "https://arena.ai/agent/01a11036-d542-7758-b177-f65eb0f2f473",
      "profile": "A3"
    },
    {
      "label": "A93",
      "url": "https://arena.ai/agent/01a10ff3-0049-7f09-ab14-f1db8e095a00",
      "profile": "A3"
    }
  ]
}