{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "event_investigation_iteration.schema.json",
  "title": "Investigation Iteration Event Schema",
  "description": "Schema for investigation_iteration event stored in bazinga-db. Tracks Investigator agent progress.",
  "type": "object",
  "additionalProperties": false,
  "required": ["group_id", "iteration", "status"],
  "$comment": "session_id and event_type are NOT required in payload - injected by save-event CLI",
  "properties": {
    "session_id": {
      "type": "string",
      "pattern": "^bazinga_",
      "description": "Session identifier. Note: When using save-event CLI, session_id is passed as first arg."
    },
    "group_id": {
      "type": "string",
      "description": "Task group identifier"
    },
    "iteration": {
      "type": "integer",
      "minimum": 1,
      "maximum": 10,
      "description": "Investigation iteration number (max 5 typically)"
    },
    "status": {
      "type": "string",
      "enum": [
        "under_investigation",
        "root_cause_found",
        "hypothesis_eliminated",
        "need_more_analysis",
        "need_developer_diagnostic",
        "blocked",
        "exhausted",
        "investigation_incomplete"
      ],
      "description": "Current investigation status"
    },
    "activity": {
      "type": "string",
      "description": "Brief description of last activity"
    },
    "summary": {
      "type": "string",
      "description": "Summary of investigation findings this iteration"
    },
    "hypothesis": {
      "type": "string",
      "description": "Current hypothesis being tested"
    },
    "confidence": {
      "type": "string",
      "enum": ["high", "medium", "low"],
      "description": "Confidence level in findings"
    },
    "timestamp": {
      "type": "string",
      "format": "date-time"
    }
  },
  "x-dedup-key": {
    "description": "Deduplication key to prevent duplicate events",
    "fields": ["session_id", "group_id", "iteration"]
  }
}