$ uv run tools/flow.py push answers/76-lab03-challenge-park.json
! unpublished '76 Replay (reference, Lab 03 example 1)' (we4c5fdffca93da1): it used the same webhook path
✔ pushed '76 Replay · park after 3 attempts (answer, Lab 03 task 1)' (id w7d8de63c811909b)
   POST http://localhost:5678/webhook/my-replay

$ uv run tools/flow.py test cases/lab03-challenge.json -v
✔ before: POST http://localhost:8800/tickets-reset · HTTP 200 · 0.0s · {"cleared": 2}
    → request  POST http://localhost:8800/tickets-reset
      {}
    ← response HTTP 200
      {
        "cleared": 2
      }
✔ before: POST http://localhost:8800/dlq-clear · HTTP 200 · 0.0s · {"cleared": 0}
    → request  POST http://localhost:8800/dlq-clear
      {}
    ← response HTTP 200
      {
        "cleared": 0
      }
✔ before: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 1}
    → request  POST http://localhost:8800/alerts-clear
      {}
    ← response HTTP 200
      {
        "cleared": 1
      }
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }
POST http://localhost:5678/webhook/my-intake · 7 case(s) × 1
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "error", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "tickets": "error"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "error",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }
✔ API가 오래 멈춤 · 처음 실패 · 4.3s
    → request  POST /webhook/my-intake
      {
        "requests": [
          {
            "id": "R-301",
            "user": "정우성",
            "text": "사내 위키 로그인이 안 돼요"
          },
          {
            "id": "R-302",
            "user": "이준호",
            "text": "노트북 배터리가 금방 닳아요"
          }
        ]
      }
    ← response HTTP 200
      {
        "total": 2,
        "created": 0,
        "failed": 2,
        "rejected": 0,
        "duplicates": 0,
        "unclassified": 0,
        "results": [
          {
            "id": "R-301",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          },
          {
            "id": "R-302",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          }
        ],
        "dlq_saved": true,
        "alert": "sent"
      }
✔ 재처리 1 · 또 실패 · 1.9s
    → request  POST /webhook/my-replay
      {}
    ← response HTTP 200
      {
        "replayed": 2,
        "ok": 0,
        "still_failed": 2,
        "parked": 0,
        "duplicates": 0
      }
✔ 재처리 2 · 또 실패 · 2.1s
    → request  POST /webhook/my-replay
      {}
    ← response HTTP 200
      {
        "replayed": 2,
        "ok": 0,
        "still_failed": 2,
        "parked": 0,
        "duplicates": 0
      }
✔ 재처리 3 · 세 번 실패한 것은 멈춤 (parked) · 0.1s
    → request  POST /webhook/my-replay
      {}
    ← response HTTP 200
      {
        "replayed": 0,
        "ok": 0,
        "still_failed": 0,
        "parked": 2,
        "duplicates": 0
      }
✔ parked로 남음 · 0.0s
    → request  POST http://localhost:8800/dlq/list
      {}
    ← response HTTP 200
      {
        "size": 2,
        "parked": 2,
        "items": [
          {
            "dlq_id": "D-1",
            "attempts": 3,
            "parked": true,
            "item": {
              "id": "R-301",
              "user": "정우성",
              "text": "사내 위키 로그인이 안 돼요"
            },
            "reason": "gave up after 3 attempts: 500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251128.6803358
          },
          {
            "dlq_id": "D-2",
            "attempts": 3,
            "parked": true,
            "item": {
              "id": "R-302",
              "user": "이준호",
              "text": "노트북 배터리가 금방 닳아요"
            },
            "reason": "gave up after 3 attempts: 500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251128.9017823
          }
        ]
      }
✔ 멈춘 것은 알림 · 0.0s
    → request  POST http://localhost:8800/alerts/latest
      {}
    ← response HTTP 200
      {
        "workflow": "replay",
        "node": "Park it",
        "severity": "high",
        "reason": "parked",
        "dlq_id": "D-2",
        "message": "D-2 (R-302) parked after 3 attempts",
        "at": 1793251129.0694785
      }
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }
✔ 고친 뒤에도 parked는 자동으로 돌리지 않음 · 0.0s
    → request  POST /webhook/my-replay
      {}
    ← response HTTP 200
      {
        "replayed": 0,
        "ok": 0,
        "still_failed": 0,
        "parked": 0
      }
Passed 7/7
report: runs/lab03-challenge-20261029-141849.json
✔ after: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "ok",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "ok",
        "slow_seconds": 8
      }

$ uv run tools/flow.py test cases/lab03.json
✔ before: POST http://localhost:8800/tickets-reset · HTTP 200 · 0.0s · {"cleared": 0}
✔ before: POST http://localhost:8800/dlq-clear · HTTP 200 · 0.0s · {"cleared": 2}
✔ before: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 3}
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
POST http://localhost:5678/webhook/my-intake · 5 case(s) × 1
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "error", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
✔ API가 멈춘 동안 2건 → DLQ · 3.0s
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
✔ 고친 뒤 다시 돌리기 · 1.4s
✔ DLQ가 비었음 · 0.0s
✔ 접수 건은 2개 (중복 없음) · 0.0s
✔ 한 번 더 돌려도 할 일 없음 · 0.0s
Passed 5/5
report: runs/lab03-20261029-141853.json
✔ after: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}

$ uv run tools/flow.py ops
fault switch: all ok
created tickets: 2
  T-2001  key R-301  계정/높음  사내 위키 로그인이 안 돼요
  T-2002  key R-302  장비/보통  노트북 배터리가 금방 닳아요
DLQ: 0 (parked 0)
alerts: 1
  [high] intake · dlq · Send to DLQ · count 2 · 2 request(s) could not be created and wait in the DLQ