{
  "tail": "2",
  "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": "A2",
      "url": "https://arena.ai/agent/01a0ffcb-2310-7e25-aeb2-ea1577c91ae1",
      "profile": "A2"
    },
    {
      "label": "A12",
      "url": "https://arena.ai/agent/01a10f6b-f77d-7d7f-89fa-c6fa0a4a19a8",
      "profile": "A2"
    },
    {
      "label": "A22",
      "url": "https://arena.ai/agent/01a10f73-cb5b-7f23-bc91-80c4a89f9a32",
      "profile": "A2"
    },
    {
      "label": "A32",
      "url": "https://arena.ai/agent/01a10f83-48b0-7de3-8126-b965d3779f47",
      "profile": "A2"
    },
    {
      "label": "A42",
      "url": "https://arena.ai/agent/01a10f9c-a5f6-750a-8a06-a240cf24c50b",
      "profile": "A2"
    },
    {
      "label": "A52",
      "url": "https://arena.ai/agent/01a10f9e-aa09-7a61-b4ec-a6eb4a4f0bb8",
      "profile": "A2"
    },
    {
      "label": "A62",
      "url": "https://arena.ai/agent/01a10fa5-9a26-7e98-9bbc-d01313f569ea",
      "profile": "A2"
    },
    {
      "label": "A72",
      "url": "https://arena.ai/agent/01a10fb6-9c50-7474-87a5-aa6f34e5507d",
      "profile": "A2"
    },
    {
      "label": "A82",
      "url": "https://arena.ai/agent/01a10fde-be70-7c8a-b677-95d422ea3b63",
      "profile": "A2"
    },
    {
      "label": "A92",
      "url": "https://arena.ai/agent/01a10fe7-e932-7a49-a48e-3f8b4b0fbe5e",
      "profile": "A2"
    }
  ]
}