{
  "description": "Patronus-style schema drift bundle (three mid-episode rule changes).",
  "events": [
    {
      "after_step": 1,
      "shift_all_meetings_hours": 1,
      "comment": "Scenario 1: calendar system shifts all local meeting times by +1 hour."
    },
    {
      "after_step": 2,
      "set_contact_preference": {
        "name": "Sarah Chen",
        "communication_preference": "text"
      },
      "comment": "Scenario 2: VIP/personal contact switches to text-only preference."
    },
    {
      "after_step": 3,
      "set_task_deadline": {
        "task_id": "t02",
        "deadline": "2026-04-21T07:00:00"
      },
      "suppress_reply_relationship_for_senders": ["Marcus Webb"],
      "comment": "Scenario 3: task deadline moved earlier; Marcus email replies yield zero relationship score."
    }
  ]
}