[
  {
    "stage_index": 1,
    "name": "Page Navigation & DOM Stabilization",
    "action_type": "setup",
    "description": "Navigate to target URL and wait for DOM network idle / hydration."
  },
  {
    "stage_index": 2,
    "name": "Schema-Guided Element Extraction",
    "action_type": "inspection",
    "description": "Stagehand extracts structured dictionary adhering to provided Pydantic model."
  },
  {
    "stage_index": 3,
    "name": "Pydantic Model Validation",
    "action_type": "output_validation",
    "description": "Run `Model.model_validate(data)` to verify data types and field constraints."
  },
  {
    "stage_index": 4,
    "name": "Self-Healing Selector Mutation",
    "action_type": "retry",
    "description": "If validation fails (missing fields or type mismatch), mutate extraction instruction with failed field path and retry."
  }
]