$ uv run tools/flow.py push answers/76-lab03-challenge2-ops-status.json
✔ pushed '76 Ops status (answer)' (id w07b5812eaa88ef9)
   POST http://localhost:5678/webhook/my-ops-status

$ uv run tools/flow.py test cases/lab03-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": 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": 0}
    → request  POST http://localhost:8800/alerts-clear
      {}
    ← response HTTP 200
      {
        "cleared": 0
      }
✔ 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-ops-status · 7 case(s) × 1
✔ 1 · 아무 일 없음 → ok · 0.9s
    → request  POST /webhook/my-ops-status
      {}
    ← response HTTP 200
      {
        "status": "ok",
        "dlq": 0,
        "parked": 0,
        "created": 0,
        "alerts": {
          "critical": 0,
          "high": 0
        },
        "reasons": []
      }
✔ 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
      }
✔ 2 · (접수 실패 2건) · 3.7s
    → 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"
      }
✔ 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
      }
✔ 3 · DLQ가 있으면 warn · 0.1s
    → request  POST /webhook/my-ops-status
      {}
    ← response HTTP 200
      {
        "status": "warn",
        "dlq": 2,
        "parked": 0,
        "created": 0,
        "alerts": {
          "critical": 0,
          "high": 1
        },
        "reasons": [
          "DLQ 2건: 원인을 고친 뒤 재처리",
          "high 알림 1건 (10분)"
        ]
      }
✔ 4 · (보고서 버그) · 0.1s
    → request  POST /webhook/nightly-report
      {}
    ← response HTTP 500
      {
        "message": "Error in workflow"
      }
… before: wait 3s
✔ 5 · critical 알림이 있으면 critical · 0.1s
    → request  POST /webhook/my-ops-status
      {}
    ← response HTTP 200
      {
        "status": "critical",
        "dlq": 2,
        "parked": 0,
        "created": 0,
        "alerts": {
          "critical": 1,
          "high": 1
        },
        "reasons": [
          "critical 알림 1건 (10분)",
          "DLQ 2건: 원인을 고친 뒤 재처리",
          "high 알림 1건 (10분)"
        ]
      }
✔ 6 · (재처리 · 알림 확인 뒤 비움) · 1.2s
    → request  POST /webhook/my-replay
      {}
    ← response HTTP 200
      {
        "replayed": 2,
        "ok": 2,
        "still_failed": 0,
        "parked": 0,
        "duplicates": 0
      }
✔ after: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 2}
    → request  POST http://localhost:8800/alerts-clear
      {}
    ← response HTTP 200
      {
        "cleared": 2
      }
✔ 7 · 고친 뒤 → ok · 0.0s
    → request  POST /webhook/my-ops-status
      {}
    ← response HTTP 200
      {
        "status": "ok",
        "dlq": 0,
        "parked": 0,
        "created": 2,
        "alerts": {
          "critical": 0,
          "high": 0
        },
        "reasons": []
      }
Passed 7/7
report: runs/lab03-challenge2-20261029-141921.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-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": 0}
✔ before: POST http://localhost:8800/alerts-clear · HTTP 200 · 0.0s · {"cleared": 0}
✔ 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 · 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}
✔ API가 오래 멈춤 · 처음 실패 · 2.8s
✔ 재처리 1 · 또 실패 · 1.9s
✔ 재처리 2 · 또 실패 · 2.5s
✔ 재처리 3 · 세 번 실패한 것은 멈춤 (parked) · 0.1s
✔ parked로 남음 · 0.0s
✔ 멈춘 것은 알림 · 0.0s
✔ 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 뒤에도 parked는 자동으로 돌리지 않음 · 0.0s
Passed 7/7
report: runs/lab03-challenge-20261029-141929.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/lab02-challenge2.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 · 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}
✔ 첫 실패 → 알림 보냄 · 2.9s
✔ 10분 안에 또 실패 → 보내지 않음 · 3.4s
✔ dlq 알림은 1개 · 0.0s
✔ 그래도 DLQ에는 5건 모두 · 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}
✔ DLQ가 멈춘 것은 늘 보냄 (critical) · 2.8s
✔ after: 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 · 실패 없음 · 알림 없음 · 3.4s
Passed 6/6
report: runs/lab02-challenge2-20261029-141941.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 call my-ops-status
HTTP 200 · 0.1s
{
  "status": "critical",
  "dlq": 5,
  "parked": 0,
  "created": 2,
  "alerts": {
    "critical": 1,
    "high": 1
  },
  "reasons": [
    "critical 알림 1건 (10분)",
    "DLQ 5건: 원인을 고친 뒤 재처리",
    "high 알림 1건 (10분)"
  ]
}

$ uv run tools/flow.py ops --reset
✔ created tickets, DLQ and alerts emptied, fault switch all ok

$ uv run tools/flow.py doctor
! n8n install folder /Users/mcchae/day65-n8n
   → day 65 SETUP-N8N 5단계 (get.n8n.io 설치). 다른 곳에 설치했다면 Last3Mon/65/n8n/.env 에 N8N_HOME=<폴더>
✔ n8n container day65-n8n-n8n-1
✔ n8n http://localhost:5678
✔ data API http://localhost:8800
✔ dead letter queue /dlq · alerts · fault switch dlq (day 76 data API)
✔ n8n → http://data-api:8800
✔ credential 'OpenAI (.env)' (openAiCourse0001)
✔ node catalog (for check)
✔ CLI coding agent: codex, claude, agy
ready