{
  "source_video": "/Users/moon/.openclaw/workspace/youtube-automation/outputs/continuity-chain-test/20260329/clip_1.mp4",
  "payload_shape": "video_list[].video_url + refer_type + keep_original_sound",
  "error": {
    "status_code": 400,
    "category": "malformed",
    "body": "{\"code\":1201,\"message\":\"Video URL is invalid\",\"request_id\":\"f0900750-cc96-4ff5-baf7-90407101f0de\"}"
  }
}