[
  {
    "step_id": "ag_001",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "extract",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.92,
    "label": "success",
    "ts": "2026-03-04T09:00"
  },
  {
    "step_id": "ag_002",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "extract",
    "schema_ok": false,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.8,
    "label": "fail",
    "ts": "2026-03-04T10:00"
  },
  {
    "step_id": "ag_003",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "tool_call",
    "schema_ok": true,
    "tool_ok": false,
    "grounded": true,
    "confidence": 0.7,
    "label": "fail",
    "ts": "2026-03-04T11:00"
  },
  {
    "step_id": "ag_004",
    "wf_raw": "송 장처리",
    "wf_id": "invoice",
    "step_type": "transform",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": false,
    "confidence": 0.55,
    "label": "review",
    "ts": "2026-03-04T12:00"
  },
  {
    "step_id": "ag_005",
    "wf_raw": "신규워크플로우X",
    "wf_id": null,
    "step_type": "extract",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.85,
    "label": "review",
    "ts": "2026-03-04T13:00"
  },
  {
    "step_id": "ag_006",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "transform",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": null,
    "label": "review",
    "ts": "2026-03-04T14:00"
  },
  {
    "step_id": "ag_007",
    "wf_raw": "채널관리",
    "wf_id": "channel",
    "step_type": "tool_call",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.9,
    "label": "success",
    "ts": "2026-03-04T15:00"
  },
  {
    "step_id": "ag_008",
    "wf_raw": "채 널관리",
    "wf_id": "channel",
    "step_type": "extract",
    "schema_ok": false,
    "tool_ok": false,
    "grounded": false,
    "confidence": 0.4,
    "label": "fail",
    "ts": "2026-03-05T09:00"
  },
  {
    "step_id": "ag_009",
    "wf_raw": "채널관리",
    "wf_id": "channel",
    "step_type": "transform",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.88,
    "label": "success",
    "ts": "2026-03-05T10:00"
  },
  {
    "step_id": "ag_010",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "tool_call",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": false,
    "confidence": 0.6,
    "label": "review",
    "ts": "2026-03-05T11:00"
  },
  {
    "step_id": "ag_011",
    "wf_raw": "송장처리",
    "wf_id": "invoice",
    "step_type": "extract",
    "schema_ok": true,
    "tool_ok": true,
    "grounded": true,
    "confidence": 0.93,
    "label": "success",
    "ts": "2026-03-06T09:00"
  }
]