{
  "decision_id": "decision-YYYYMMDD-xxx",
  "task_id": "task-YYYYMMDD-xxx",
  "timestamp": "2026-03-09T12:36:00+08:00",
  "decision_maker": "val|oracle|sentinel|user",
  "decision_type": "route|audit|escalation|rollback",
  "decision": "",
  "reasoning_summary": "",
  "alternatives_considered": [],
  "approved_by": "",
  "impact": {
    "risk": "low|medium|high",
    "cost": "low|medium|high",
    "speed": "low|medium|high"
  }
}