$ uv run tools/flow.py push answers/76-lab02-challenge2-throttle.json
! unpublished '76 Intake · alert on handled failures (answer, Lab 02 task 1)' (w82959c505ef75f7): it used the same webhook path
✔ pushed '76 Intake · alert once per 10 minutes (answer, Lab 02 task 2)' (id w75a95815facf2d6)
   POST http://localhost:5678/webhook/my-intake

$ uv run tools/flow.py test cases/lab02-challenge2.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": 5}
    → request  POST http://localhost:8800/dlq-clear
      {}
    ← response HTTP 200
      {
        "cleared": 5
      }
✔ before: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 3}
    → request  POST http://localhost:8800/alerts-clear
      {}
    ← response HTTP 200
      {
        "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}
    → 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 · 6 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
      }
✔ 첫 실패 → 알림 보냄 · 4.5s
    → 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"
      }
✔ 10분 안에 또 실패 → 보내지 않음 · 3.7s
    → request  POST /webhook/my-intake
      {
        "requests": [
          {
            "id": "R-101",
            "user": "이준호",
            "text": "VPN이 아침부터 계속 끊겨서 고객 미팅을 못 하고 있어요"
          },
          {
            "id": "R-102",
            "user": "박서연",
            "text": "새 모니터를 하나 더 받을 수 있을까요?"
          },
          {
            "id": "R-103",
            "user": "최유진",
            "text": "엑셀 라이선스가 만료됐다고 나와요"
          }
        ]
      }
    ← response HTTP 200
      {
        "total": 3,
        "created": 0,
        "failed": 3,
        "rejected": 0,
        "duplicates": 0,
        "unclassified": 0,
        "results": [
          {
            "id": "R-101",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          },
          {
            "id": "R-102",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          },
          {
            "id": "R-103",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          }
        ],
        "dlq_saved": true,
        "alert": "suppressed"
      }
✔ dlq 알림은 1개 · 0.0s
    → request  POST http://localhost:8800/alerts/list
      {
        "reason": "dlq"
      }
    ← response HTTP 200
      {
        "count": 1,
        "alerts": [
          {
            "workflow": "intake",
            "node": "Send to DLQ",
            "severity": "high",
            "reason": "dlq",
            "count": 2,
            "message": "2 request(s) could not be created and wait in the DLQ",
            "execution_id": "10135",
            "at": 1793251017.2530532
          }
        ]
      }
✔ 그래도 DLQ에는 5건 모두 · 0.0s
    → request  POST http://localhost:8800/dlq/list
      {}
    ← response HTTP 200
      {
        "size": 5,
        "parked": 0,
        "items": [
          {
            "dlq_id": "D-1",
            "attempts": 1,
            "parked": false,
            "item": {
              "id": "R-301",
              "user": "정우성",
              "text": "사내 위키 로그인이 안 돼요"
            },
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251017.2315063
          },
          {
            "dlq_id": "D-2",
            "attempts": 1,
            "parked": false,
            "item": {
              "id": "R-302",
              "user": "이준호",
              "text": "노트북 배터리가 금방 닳아요"
            },
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251017.2315085
          },
          {
            "dlq_id": "D-3",
            "attempts": 1,
            "parked": false,
            "item": {
              "id": "R-101",
              "user": "이준호",
              "text": "VPN이 아침부터 계속 끊겨서 고객 미팅을 못 하고 있어요"
            },
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251020.9757996
          },
          {
            "dlq_id": "D-4",
            "attempts": 1,
            "parked": false,
            "item": {
              "id": "R-102",
              "user": "박서연",
              "text": "새 모니터를 하나 더 받을 수 있을까요?"
            },
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251020.9758017
          },
          {
            "dlq_id": "D-5",
            "attempts": 1,
            "parked": false,
            "item": {
              "id": "R-103",
              "user": "최유진",
              "text": "엑셀 라이선스가 만료됐다고 나와요"
            },
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\"",
            "workflow": "intake",
            "at": 1793251020.975803
          }
        ]
      }
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "error", "prompts": "ok", "usage": "ok", "dlq": "error", "slow_seconds": 8}
    → request  POST http://localhost:8800/admin/fault
      {
        "tickets": "error",
        "dlq": "error"
      }
    ← response HTTP 200
      {
        "faq": "ok",
        "tickets": "error",
        "prompts": "ok",
        "usage": "ok",
        "dlq": "error",
        "slow_seconds": 8
      }
✔ DLQ가 멈춘 것은 늘 보냄 (critical) · 2.4s
    → request  POST /webhook/my-intake
      {
        "requests": [
          {
            "id": "R-201",
            "user": "한지훈",
            "text": "프린터 용지가 걸려요"
          },
          {
            "id": "R-202",
            "user": "한지훈",
            "text": ""
          },
          {
            "id": "R-203",
            "user": "김민지",
            "text": "메일 첨부가 안 열려요"
          }
        ]
      }
    ← response HTTP 200
      {
        "total": 3,
        "created": 0,
        "failed": 2,
        "rejected": 1,
        "duplicates": 0,
        "unclassified": 0,
        "results": [
          {
            "id": "R-201",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          },
          {
            "id": "R-203",
            "status": "failed",
            "reason": "500 - \"{\\\"error\\\": \\\"tickets service is failing (fault switch)\\\"}\""
          },
          {
            "id": "R-202",
            "status": "rejected",
            "reason": "text is required"
          }
        ],
        "dlq_saved": false,
        "alert": "sent"
      }
✔ 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
      }
✔ 고친 뒤 · 실패 없음 · 알림 없음 · 2.8s
    → request  POST /webhook/my-intake
      {
        "requests": [
          {
            "id": "R-401",
            "user": "김민지",
            "text": "회의실 화면 공유가 안 돼요"
          },
          {
            "id": "R-401",
            "user": "김민지",
            "text": "회의실 화면 공유가 안 돼요"
          },
          {
            "id": "R-402",
            "user": "최유진",
            "text": "비밀번호를 바꾸라는 창이 계속 떠요"
          }
        ]
      }
    ← response HTTP 200
      {
        "total": 3,
        "created": 2,
        "failed": 0,
        "rejected": 1,
        "duplicates": 0,
        "unclassified": 0,
        "results": [
          {
            "id": "R-401",
            "status": "created",
            "ticket_id": "T-2001",
            "duplicate": false,
            "category": "네트워크",
            "priority": "보통"
          },
          {
            "id": "R-402",
            "status": "created",
            "ticket_id": "T-2002",
            "duplicate": false,
            "category": "계정",
            "priority": "보통"
          },
          {
            "id": "R-401",
            "status": "rejected",
            "reason": "duplicate id in this request"
          }
        ],
        "alert": "none"
      }
Passed 6/6
report: runs/lab02-challenge2-20261029-141706.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/lab02-challenge.json
✔ before: POST http://localhost:8800/tickets-reset · HTTP 200 · 0.0s · {"cleared": 2}
✔ before: POST http://localhost:8800/dlq-clear · HTTP 200 · 0.0s · {"cleared": 5}
✔ before: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 2}
✔ 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 · 6 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 멈춤 → DLQ · 2.7s
✔ after: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
✔ 처리한 실패도 알림 (high · 개수) · 0.0s
✔ 실패가 없으면 알림 없음 · 2.9s
✔ 알림은 그대로 1개 · 0.0s
✔ before: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "error", "prompts": "ok", "usage": "ok", "dlq": "error", "slow_seconds": 8}
✔ DLQ도 멈추면 critical · 2.3s
✔ after: POST http://localhost:8800/admin/fault · HTTP 200 · 0.0s · {"faq": "ok", "tickets": "ok", "prompts": "ok", "usage": "ok", "dlq": "ok", "slow_seconds": 8}
✔ 잃어버린 id를 알림에 · 0.0s
Passed 6/6
report: runs/lab02-challenge-20261029-141714.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 test cases/lab01-challenge2.json
✔ before: POST http://localhost:8800/tickets-reset · HTTP 200 · 0.0s · {"cleared": 3}
✔ 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": 2}
✔ 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 · 4 case(s) × 1
✔ 같은 id가 두 번이면 두 번째는 거절 · 2.1s
✔ 11건은 400 (한 번에 10건까지) · 0.0s
✔ 400이면 하나도 만들지 않음 · 0.0s
✔ 평소 요청은 그대로 · 2.7s
Passed 4/4
report: runs/lab01-challenge2-20261029-141719.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: 5
  T-2001  key R-401  네트워크/높음  회의실 화면 공유가 안 돼요
  T-2002  key R-402  계정/보통  비밀번호를 바꾸라는 창이 계속 떠요
  T-2003  key R-101  네트워크/높음  VPN이 아침부터 계속 끊겨서 고객 미팅을 못 하고 있
  T-2004  key R-102  장비/보통  새 모니터를 하나 더 받을 수 있을까요?
  T-2005  key R-103  소프트웨어/높음  엑셀 라이선스가 만료됐다고 나와요
DLQ: 0 (parked 0)
alerts: 0