{
  "tail": "4",
  "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": "A4",
      "url": "https://arena.ai/agent/01a0fbe9-18fc-75cd-a58d-3f55092de4e4",
      "profile": "A4"
    },
    {
      "label": "A14",
      "url": "https://arena.ai/agent/01a10f6f-aede-7101-93e7-76527da5026c",
      "profile": "A4"
    },
    {
      "label": "A24",
      "url": "https://arena.ai/agent/01a10f7e-55e3-7cbe-8115-a91c98164eac",
      "profile": "A4"
    },
    {
      "label": "A34",
      "url": "https://arena.ai/agent/01a10f9e-7bb9-7585-9ab5-cedcd545b964",
      "profile": "A4"
    },
    {
      "label": "A44",
      "url": "https://arena.ai/agent/01a10fb3-e8ce-7209-86f3-e3dd19dc5fea",
      "profile": "A4"
    },
    {
      "label": "A54",
      "url": "https://arena.ai/agent/01a10fd4-5d7a-78f6-a2ed-0e33ef357f38",
      "profile": "A4"
    },
    {
      "label": "A64",
      "url": "https://arena.ai/agent/01a10fd8-6764-76b5-837e-5b4fce04784b",
      "profile": "A4"
    },
    {
      "label": "A74",
      "url": "https://arena.ai/agent/01a10fde-d1f4-76fc-807f-2c5b79d53a14",
      "profile": "A4"
    },
    {
      "label": "A84",
      "url": "https://arena.ai/agent/01a10ffb-1a09-7ff2-9b8b-2c5ec69c68a7",
      "profile": "A4"
    },
    {
      "label": "A94",
      "url": "https://arena.ai/agent/01a10ffa-fe7a-7835-81be-faafa380c513",
      "profile": "A4"
    }
  ]
}