{
  "plan_id": "P600",
  "stages": [{"id": "intro", "seconds": 90, "start": "00:00", "end": "01:30"}, {"id": "demo", "seconds": 330, "start": "01:30", "end": "07:00"}, {"id": "close", "seconds": 180, "start": "07:00", "end": "10:00"}],
  "total_seconds": 600,
  "choice": "shorten intro by 30 seconds; keep demo and close",
  "auto_import_starts_timer": false
}