{
  "native": {
    "source": "artifacts/runs/claude-20261110T140751-b77291a7/recording.mp4",
    "method": "decoded-frame inspection plus 320x180 layout scan",
    "sourceDurationSeconds": 95.625,
    "decodedFrames": 657,
    "onsetSeconds": 34.5,
    "first1080CornerSeconds": 39.375,
    "later1080CornerSeconds": 52.375,
    "cameraRedHits": 0,
    "note": "First visible change is black-left at 34.500. 1920x1080 desktop sits in the top-left of the 3840x2160 capture at 39.375."
  },
  "finshield": {
    "source": "artifacts/runs/claude-20261110T142824-40dab09c/recording.mp4",
    "method": "decoded-frame inspection plus 1 fps 480x270 luma/near-black scan",
    "sourceDurationSeconds": 205.875,
    "decodedFrames": 1413,
    "oneFpsStills": 206,
    "bottomHalfNearBlackMax": 0.0,
    "rightHalfNearBlackMax": 0.0,
    "cameraRedHits": 0,
    "namedAttemptSeconds": 36.25,
    "note": "Desktop stayed 3840x2160 through the complete recording. No leftover Camera observer."
  }
}