{
  "schema_version": 2,
  "model": "openai/gpt-5.6-luna",
  "outcome": {
    "status": "running"
  },
  "usage": {
    "input_tokens": 18,
    "output_tokens": 3685,
    "cache_read_tokens": 36430,
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  "messages": [
    {
      "role": "user",
      "content": "Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win.\n\n\nThe controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors.\n\n# Service contract\n\n# Stateful primary failover contract\n\nThe public record service on port 8080 is unavailable because its proxy still\ntargets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica\nis running on `127.0.0.1:8082`. Existing customer state is stored in\n`/var/lib/failover/records.sqlite3` and must not be discarded or replaced.\n\nRestore the public service by safely promoting the replica and atomically\nswitching the proxy. The replica reads its role from\n`/var/lib/failover/replica.role` on every request. It accepts writes only when\nthat file contains `primary`. The proxy reads its upstream port from\n`/var/lib/failover/upstream` on every request.\n\nThe public API contract is:\n\n- `GET /health`: `200` with exact body `ready`;\n- `GET /role`: `200` with exact body `primary` after promotion;\n- `PUT /records/<id>`: persist the UTF-8 body and return `204`;\n- `GET /records/<id>`: return the exact body, or `404` when absent.\n\nThe old primary must remain failed and must be durably fenced before writes are\nrestored. Preserve `/var/lib/failover/primary.failed`, create\n`/var/lib/failover/primary.fenced`, and do not make port 8081 listen again.\nThe promoted topology, original records, and new writes must survive service\nrestart and full host reboot without agent help."
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "**Investigating host operations**\n\nI need to operate the host efficiently and inspect everything carefully. It’s crucial to leave it running while ensuring it’s a durable fenced topology, especially since the old primary failed. I should investigate the processes, files, and services that are currently in play. It seems I can use various tools to help in this investigation, so I'll start a to-do list to keep track of what I need to tackle.",
          "details": [
            {
              "format": "openai-responses-v1",
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              "summary": "**Investigating host operations**\n\nI need to operate the host efficiently and inspect everything carefully. It’s crucial to leave it running while ensuring it’s a durable fenced topology, especially since the old primary failed. I should investigate the processes, files, and services that are currently in play. It seems I can use various tools to help in this investigation, so I'll start a to-do list to keep track of what I need to tackle.",
              "type": "reasoning.summary"
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              "format": "openai-responses-v1",
              "id": "rs_003de5363961e675016aa4b94ceef487d1a88daf94a8f17526",
              "index": 1,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_pXRUhwCOFhlBA4p58dqUPcwf",
          "name": "TodoWrite",
          "input": {
            "todos": [
              {
                "activeForm": "Inspecting the failover services and persistent state",
                "content": "Inspect the failover services and persistent state",
                "status": "in_progress"
              },
              {
                "activeForm": "Fencing and promoting the replica safely",
                "content": "Fence the failed primary and promote the replica safely",
                "status": "pending"
              },
              {
                "activeForm": "Switching and persisting the public proxy topology",
                "content": "Switch and persist the public proxy topology",
                "status": "pending"
              },
              {
                "activeForm": "Verifying API behavior and restart durability",
                "content": "Verify API behavior and restart durability",
                "status": "pending"
              },
              {
                "activeForm": "Leaving the recovered service running",
                "content": "Leave the recovered service running",
                "status": "pending"
              }
            ]
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_pXRUhwCOFhlBA4p58dqUPcwf",
          "content": "Added:\n  + Inspect the failover services and persistent state\n  + Fence the failed primary and promote the replica safely\n  + Switch and persist the public proxy topology\n  + Verify API behavior and restart durability\n  + Leave the recovered service running\n\nCurrent tasks:\n  ◉ Inspect the failover services and persistent state\n  ○ Fence the failed primary and promote the replica safely\n  ○ Switch and persist the public proxy topology\n  ○ Verify API behavior and restart durability\n  ○ Leave the recovered service running\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "tool_use",
          "id": "call_EzOokO6N6dUR0YujOKca2Hrn",
          "name": "Glob",
          "input": {
            "include_build_dirs": false,
            "include_hidden": true,
            "path": "/var/lib/failover",
            "pattern": "*"
          }
        },
        {
          "type": "tool_use",
          "id": "call_w0aaf3kdBJQxUKmtBTXEEvVV",
          "name": "Grep",
          "input": {
            "glob": "*",
            "include_build_dirs": false,
            "include_hidden": true,
            "output_mode": "content",
            "path": "/etc/systemd/system",
            "pattern": "failover|8080|8081|8082"
          }
        },
        {
          "type": "tool_use",
          "id": "call_sLitnABVA8IlBwawzrU3Av51",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "set -o pipefail; printf '%s\\n' '--- listeners ---'; ss -ltnp '( sport = :8080 or sport = :8081 or sport = :8082 )' || true; printf '%s\\n' '--- processes ---'; ps -ef | grep -E 'failover|8080|8081|8082' | grep -v grep || true; printf '%s\\n' '--- files ---'; ls -la /var/lib/failover; printf '%s\\n' '--- systemd units ---'; systemctl list-units --all --type=service | grep -Ei 'failover|proxy|record' || true",
            "description": "Inspect listeners processes and service files",
            "timeout": 120000
          }
        },
        {
          "type": "tool_use",
          "id": "call_nl9TRVtdZrMi5G4fQXCAUtar",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "set -o pipefail; printf '%s\\n' '--- role ---'; [ -f /var/lib/failover/replica.role ] && od -An -tc /var/lib/failover/replica.role || true; printf '%s\\n' '--- upstream ---'; [ -f /var/lib/failover/upstream ] && od -An -tc /var/lib/failover/upstream || true; printf '%s\\n' '--- markers ---'; for f in /var/lib/failover/primary.failed /var/lib/failover/primary.fenced; do if [ -e \"$f\" ]; then printf '%s: ' \"$f\"; stat -c '%F %s bytes %y' \"$f\"; else printf '%s: ABSENT\\n' \"$f\"; fi; done; printf '%s\\n' '--- sqlite ---'; sqlite3 /var/lib/failover/records.sqlite3 '.tables' 2>&1 || true",
            "description": "Inspect failover role markers and database",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_EzOokO6N6dUR0YujOKca2Hrn",
          "content": "/var/lib/failover/records.sqlite3\n/var/lib/failover/primary.failed\n/var/lib/failover/replica.role\n/var/lib/failover/upstream"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_w0aaf3kdBJQxUKmtBTXEEvVV",
          "content": "/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:2:Before=failover-replica.service failover-proxy.service\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:9:ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:2:After=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:3:Description=Healthy read-only failover replica\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:4:Requires=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:2:After=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:4:Requires=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:2:Before=failover-replica.service failover-proxy.service\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:9:ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:2:After=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:3:Description=Healthy read-only failover replica\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:4:Requires=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:2:After=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:4:Requires=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_sLitnABVA8IlBwawzrU3Av51",
          "content": "--- listeners ---\nState  Recv-Q Send-Q Local Address:Port Peer Address:PortProcess\nLISTEN 0      5            0.0.0.0:8080      0.0.0.0:*    users:((\"python\",pid=555,fd=3))\nLISTEN 0      5          127.0.0.1:8082      0.0.0.0:*    users:((\"python\",pid=556,fd=3))\n--- processes ---\nroot         555       1  1 02:30 ?        00:00:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nroot         556       1  0 02:30 ?        00:00:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nroot         670     659  3 02:30 ?        00:00:00 /var/tmp/agents-of-empires-luna/claux --print Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win.   The controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors.  # Service contract  # Stateful primary failover contract  The public record service on port 8080 is unavailable because its proxy still targets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica is running on `127.0.0.1:8082`. Existing customer state is stored in `/var/lib/failover/records.sqlite3` and must not be discarded or replaced.  Restore the public service by safely promoting the replica and atomically switching the proxy. The replica reads its role from `/var/lib/failover/replica.role` on every request. It accepts writes only when that file contains `primary`. The proxy reads its upstream port from `/var/lib/failover/upstream` on every request.  The public API contract is:  - `GET /health`: `200` with exact body `ready`; - `GET /role`: `200` with exact body `primary` after promotion; - `PUT /records/<id>`: persist the UTF-8 body and return `204`; - `GET /records/<id>`: return the exact body, or `404` when absent.  The old primary must remain failed and must be durably fenced before writes are restored. Preserve `/var/lib/failover/primary.failed`, create `/var/lib/failover/primary.fenced`, and do not make port 8081 listen again. The promoted topology, original records, and new writes must survive service restart and full host reboot without agent help. --permission-mode bypass --output-format json --transcript /var/tmp/agents-of-empires-luna/transcript.json\n--- files ---\ntotal 28\ndrwxr-xr-x 2 root root  4096 Sep 12 02:30 .\ndrwxr-xr-x 9 root root  4096 Sep 12 02:30 ..\n-rw-r--r-- 1 root root     0 Sep 12 02:30 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 12 02:30 records.sqlite3\n-rw-r--r-- 1 root root     8 Sep 12 02:30 replica.role\n-rw-r--r-- 1 root root     5 Sep 12 02:30 upstream\n--- systemd units ---\n  failover-proxy.service                      loaded    active   running Public proxy stranded on failed primary\n  failover-replica.service                    loaded    active   running Healthy read-only failover replica\n  failover-seed.service                       loaded    active   exited  Seed failed-primary topology and replicated state\n  systemd-pcrlogin@0.service                  loaded    inactive dead    TPM NvPCR Measurement of User Record for UID 0\n  systemd-update-utmp.service                 loaded    active   exited  Record System Boot/Shutdown in UTMP\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_nl9TRVtdZrMi5G4fQXCAUtar",
          "content": "--- role ---\n   r   e   p   l   i   c   a  \\n\n--- upstream ---\n   8   0   8   1  \\n\n--- markers ---\n/var/lib/failover/primary.failed: regular empty file 0 bytes 2026-09-12 02:30:27.612000000 +0000\n/var/lib/failover/primary.fenced: ABSENT\n--- sqlite ---\nrecords\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "**Inspecting services and scripts**\n\nI find it interesting that some services remain active even when they’re not publicly available. I need to investigate the units, scripts, and sources to understand how they might overwrite data during restarts. Checking the associated files in Unix paths is definitely on my list. I should also check the service status to ensure it’s durable after a reboot and look into the database contents to identify any record schemas. Let's dig deeper!",
          "details": [
            {
              "format": "openai-responses-v1",
              "index": 0,
              "summary": "**Inspecting services and scripts**\n\nI find it interesting that some services remain active even when they’re not publicly available. I need to investigate the units, scripts, and sources to understand how they might overwrite data during restarts. Checking the associated files in Unix paths is definitely on my list. I should also check the service status to ensure it’s durable after a reboot and look into the database contents to identify any record schemas. Let's dig deeper!",
              "type": "reasoning.summary"
            },
            {
              "data": "gAAAAABqpLlb6rs7gCHFgzCNjwIjLtBd-3uRFU0w7dXh-6eyfYsAXgqO1YX8evn0EcQSKLicGT2-O0aOQghQMgoEifvm_KpseCFYd5IMQHf_r8CKBf-APPRFYegk53pZM3Um4EvKS-f-7CsB_SfE-4iM3muqUKK0JaCkqUS0w8qYtMtEZp6NfZkQm4_f_S2kPuKPKCdFtGY0_CUYVUmpIMURN0tA-4x0pYj0pE58OTjF6oxDOxMEOfNGguEJ9lu0hD0wtzVt5H1V8To-ClVpssfja4fm7F6COsthlDCexHKogEUBt_wA8UPKFu5Grte1TB3RSl_lD475BT4QOHwWk7b1S_xToINj4edQXAHJ4yTB_nd7Md1Nm9PqZ2QOBRi1DeO1wqngtI1q8lfBGumtMHNve3ROiWG6pPsynIBqUyd_GHwT-B0VxZKGdsjthzFw35Zh-eaVbHtqLrDIH8cLuJkU95AcyCSMFVoXwUPPsZOQRi95ed6niCpz2vCpbgRdWXC1TOLrTmTtdQwrXHhb5xy0nKY3z5Gwb8ZvLNwyvpABPZ2TvoAAvjkotD2UY1Pp2UlWlucidqVipkHuhFczYduhTU9NpiudRPlBv8Lv6QG-pku2aPurdZhXmTs651tyjpS7PWcsIXCP4n0DWCrmc93TRVCXdVDyAl9y5PPAy_juwoc27TGN5htbvjhutWmntMGICSkIlQLEuPD8-6IfWDQiZ_lCx_BmIK0QnpmCXdjFBHkJrh8s4K0ZnoJ_HuEwqHbnA2GTGLrN6tHhk38_FR0Dfu3VWgQyAkvoa7ezhLtHm85P62COGJ5iAJbY4wp0-ML5Vxj8uOy8lVHE_tRNNTvxgBk-7SxxVl_YlxQ7MeOikz5WkFN6gZ-6QSIEHQnwawmMGS-ynctLGCV1bYjfg0GgMsKcNVDh8vHkx4K1TjvnJ9xg1naU65Fg7luu5q1Rqn4lh1mylB9R2QPmo61v_8WE8o3o3yTLoh276ApeaDVePBH3zWdSEJlPXDYa0CA2DIV1VDxd-Nlgb4HZRWJgkpr6m9VeXU7FHhI_lA9M12Kxieww1Z20bDAsHjrlWSZ9lVh-ISnKALF5uGQR_1Mtf-LXvxHiIDnjKLHitV_73uD1dYpHUG0VrvBVujIva_lk8nrN9C7VHb1Q2qH9PQYrxh5PV9ZmnweqjLoJQm7BPnzBteqTvta27J5S0sC2e-i1pcco5p-4Y8EplBqCelbxaqi8eHHHLDpxSPBfSQ7EoEWx9oeHf-BPPFXNbx3mhf8sNSIeXOKTKPYa2IescVOuEb4UtFvAwe6rSVX8ROeOX4F9JMiiOvO4KJZfZIP9K2qAXO1r6AcoViPot-QnHqOuaAIOf4XPN5uyMuGPc29UgfUhKciO1-1oiYNEw6dyhh4qPgKm5mAJQB8XFxnPmeDT9uLcfN-00V4WGh6mNKpKB9jmrLlaT7dO40M9v8YHL2PGWsmWAb1B_Wz9hS3ah_gX_HmibcEYxxr2aJvBkXBMN8F0DlVQKdL09HLKYeudMXnHpzNDj8QXdCyyBraHE2GdrGqLJtT6FYgyqaFHyMSNbUY_2U9IOvOk7Pm1gBsi5YLWqE2LvIMXfoMYX5YK_FU0avqhBZBOPGEoBdmgW15xejXUoZohuEhB8OHM1qzPXnWi9XXYXOQ-ICAOahtntr1oCpE1msOghWgzS4BqHew6CPEqs0kYkrUlkbUo_aoUQan_69HPB5IyCthJ1M165kdRm9mnSLgWb0exriQfrRgodM6Q7Wk0ymy9fpU=.eyJlbmRwb2ludF9zbHVnIjoib3BlbmFpL2dwdC01LjYtbHVuYS0yMDI2MDcwOXxvcGVuYWkifQ",
              "format": "openai-responses-v1",
              "id": "rs_003de5363961e675016aa4b957052487d180301e983794a522",
              "index": 1,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_fQ3IdWhf8np4tNQAkwX8i1UI",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service",
            "limit": 200,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_KHKbqjZ3Xk0Tx6O3OUbhhdUf",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service",
            "limit": 200,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_jiyvDDXdoNXKbIMON1EqxaZW",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service",
            "limit": 200,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_ayVEHpfCSJl2bWeJvkQfmWzA",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py",
            "limit": 300,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_BWN6k7mMfpMZoQI89y1LTwec",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py",
            "limit": 400,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_lVU724LnoSLqG2tLQKbBBQSb",
          "name": "Read",
          "input": {
            "file_path": "/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start",
            "limit": 300,
            "offset": 1
          }
        },
        {
          "type": "tool_use",
          "id": "call_a7JfuvwxrXneEoaD4tPpthKD",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "set -o pipefail; systemctl cat failover-proxy.service failover-replica.service failover-seed.service; printf '%s\\n' '--- enabled ---'; systemctl is-enabled failover-seed.service failover-replica.service failover-proxy.service; printf '%s\\n' '--- status ---'; systemctl status --no-pager failover-seed.service failover-replica.service failover-proxy.service || true; printf '%s\\n' '--- db ---'; sqlite3 -header -box /var/lib/failover/records.sqlite3 'select * from records order by id;'",
            "description": "Inspect failover unit definitions and records",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_fQ3IdWhf8np4tNQAkwX8i1UI",
          "content": "1\t[Unit]\n2\tAfter=failover-seed.service\n3\tDescription=Public proxy stranded on failed primary\n4\tRequires=failover-seed.service\n5\t\n6\t[Service]\n7\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n8\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n9\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n10\tExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n11\tRestart=always\n12\tRestartSec=1\n13\t\n14\t[Install]\n15\tWantedBy=multi-user.target\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_KHKbqjZ3Xk0Tx6O3OUbhhdUf",
          "content": "1\t[Unit]\n2\tAfter=failover-seed.service\n3\tDescription=Healthy read-only failover replica\n4\tRequires=failover-seed.service\n5\t\n6\t[Service]\n7\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n8\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n9\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n10\tExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n11\tRestart=always\n12\tRestartSec=1\n13\t\n14\t[Install]\n15\tWantedBy=multi-user.target\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_jiyvDDXdoNXKbIMON1EqxaZW",
          "content": "1\t[Unit]\n2\tBefore=failover-replica.service failover-proxy.service\n3\tDescription=Seed failed-primary topology and replicated state\n4\t\n5\t[Service]\n6\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n7\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n8\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n9\tExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \n10\tRemainAfterExit=true\n11\tType=oneshot\n12\t\n13\t[Install]\n14\tWantedBy=multi-user.target\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_ayVEHpfCSJl2bWeJvkQfmWzA",
          "content": "1\timport http.client\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tUPSTREAM = \"/var/lib/failover/upstream\"\n4\tclass Handler(BaseHTTPRequestHandler):\n5\t    def forward(self):\n6\t        try:\n7\t            with open(UPSTREAM) as source: port = int(source.read().strip())\n8\t            body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n9\t            connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n10\t            connection.request(self.command, self.path, body=body)\n11\t            response = connection.getresponse(); data = response.read()\n12\t            self.send_response(response.status); self.send_header(\"Content-Length\", str(len(data))); self.end_headers(); self.wfile.write(data)\n13\t            connection.close()\n14\t        except Exception:\n15\t            self.send_response(502); self.send_header(\"Content-Length\", \"0\"); self.end_headers()\n16\t    do_GET = forward\n17\t    do_PUT = forward\n18\t    def log_message(self, *_): pass\n19\tThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_BWN6k7mMfpMZoQI89y1LTwec",
          "content": "1\timport sqlite3\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tDB = \"/var/lib/failover/records.sqlite3\"\n4\tROLE = \"/var/lib/failover/replica.role\"\n5\tdef role():\n6\t    with open(ROLE) as source: return source.read().strip()\n7\tdef database():\n8\t    connection = sqlite3.connect(DB, timeout=10)\n9\t    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n10\t    return connection\n11\tclass Handler(BaseHTTPRequestHandler):\n12\t    def send(self, status, body=b\"\"):\n13\t        self.send_response(status); self.send_header(\"Content-Length\", str(len(body))); self.end_headers(); self.wfile.write(body)\n14\t    def do_GET(self):\n15\t        if self.path == \"/health\": self.send(200, b\"ready\"); return\n16\t        if self.path == \"/role\": self.send(200, role().encode()); return\n17\t        if self.path.startswith(\"/records/\"):\n18\t            connection = database(); row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone(); connection.close()\n19\t            self.send(404 if row is None else 200, b\"\" if row is None else row[0].encode()); return\n20\t        self.send(404)\n21\t    def do_PUT(self):\n22\t        if not self.path.startswith(\"/records/\"): self.send(404); return\n23\t        if role() != \"primary\": self.send(503, b\"read-only\"); return\n24\t        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode(); connection = database()\n25\t        connection.execute(\"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\", (self.path[9:], value))\n26\t        connection.commit(); connection.close(); self.send(204)\n27\t    def log_message(self, *_): pass\n28\tThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_lVU724LnoSLqG2tLQKbBBQSb",
          "content": "1\t#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\n2\tset -e\n3\t\n4\tinstall -d -m 0755 /var/lib/failover\n5\t[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n6\t[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/replica.role\n7\ttouch /var/lib/failover/primary.failed\n8\t/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\n9\timport sqlite3\n10\tdb=sqlite3.connect('/var/lib/failover/records.sqlite3')\n11\tdb.execute('CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)')\n12\tfor record,value in [('customer-red-4a7','red-original'),('customer-blue-8d2','blue-original'),('customer-green-f31','green-original')]:\n13\t    db.execute('INSERT OR IGNORE INTO records(id,value) VALUES(?,?)',(record,value))\n14\tdb.commit()\n15\tPY\n16\t\n17\t\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_a7JfuvwxrXneEoaD4tPpthKD",
          "content": "# /etc/systemd/system/failover-proxy.service -> /nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service\n[Unit]\nAfter=failover-seed.service\nDescription=Public proxy stranded on failed primary\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-replica.service -> /nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service\n[Unit]\nAfter=failover-seed.service\nDescription=Healthy read-only failover replica\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-seed.service -> /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service\n[Unit]\nBefore=failover-replica.service failover-proxy.service\nDescription=Seed failed-primary topology and replicated state\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n--- enabled ---\nenabled\nenabled\nenabled\n--- status ---\n● failover-seed.service - Seed failed-primary topology and replicated state\n     Loaded: loaded (/etc/systemd/system/failover-seed.service; enabled; preset: ignored)\n     Active: active (exited) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: f22542d714aa4349a75f7680c910d475\n    Process: 497 ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start (code=exited, status=0/SUCCESS)\n   Main PID: 497 (code=exited, status=0/SUCCESS)\n         IP: 0B in, 0B out\n         IO: 0B read, 52K written\n   Mem peak: 10.8M\n        CPU: 97ms\n\nSep 12 02:30:27 failover-three systemd[1]: Starting Seed failed-primary topology and replicated state...\nSep 12 02:30:28 failover-three systemd[1]: Finished Seed failed-primary topology and replicated state.\n\n● failover-replica.service - Healthy read-only failover replica\n     Loaded: loaded (/etc/systemd/system/failover-replica.service; enabled; preset: ignored)\n     Active: active (running) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: 75bc86099bf443e49bb291f3f0cb858c\n   Main PID: 556 (python)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 17.2M (peak: 17.2M)\n        CPU: 165ms\n     CGroup: /system.slice/failover-replica.service\n             └─556 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n\nSep 12 02:30:28 failover-three systemd[1]: Started Healthy read-only failover replica.\n\n● failover-proxy.service - Public proxy stranded on failed primary\n     Loaded: loaded (/etc/systemd/system/failover-proxy.service; enabled; preset: ignored)\n     Active: active (running) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: ef07c8f11d1f432a92b7f95b3044e530\n   Main PID: 555 (python)\n         IP: 5.4K in, 5.7K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 15.7M (peak: 15.9M)\n        CPU: 219ms\n     CGroup: /system.slice/failover-proxy.service\n             └─555 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n\nSep 12 02:30:28 failover-three systemd[1]: Started Public proxy stranded on failed primary.\n--- db ---\n╭────────────────────┬────────────────╮\n│         id         │     value      │\n╞════════════════════╪════════════════╡\n│ customer-blue-8d2  │ blue-original  │\n│ customer-green-f31 │ green-original │\n│ customer-red-4a7   │ red-original   │\n╰────────────────────┴────────────────╯\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "data": "gAAAAABqpLlhUUjPujVVdkFb0vOlhEIRwrD3L-Xr5wsosm_DUvQmzzAxFlC2i3hVWnYC19PZgrPe83KlbkrGPCWG9lekEhg25OMCBz1K8AIDhgljWtBC5pKXGlkUBqXZM9375CMa4PUtMJKP7tccfs6OtrvviagfeUOZ56CfAzsbKCv3iua6xxSHP7h-6bFvHjzXPGvuWzJFJe5ilqiLB7R1dku1bgCmF3xQN35fn_IVqKMgxRmwcFl1nCbXrhnixfUp0gEYEzuOgLFl8Ah4wv5QvfcAEeitxdki1UfHOzIrqbntYtp1fXxAXVjRnxkSspvU_7KCshSyZIX-POhyOKZOoJvXeEaXQgLH6AAn6y3FWykD1ab8Vy3N46Jwq4aYma6uqbOsXhAJ8DJgIPztlTgAd90MsWOC9Zq-p9TWzqSyG1U8rg54-Khq3ZKdRyLzwYcNjw-Lel3aLPi-li5apz73pDkNYFgkoVhe6Bmo8LL4YmquWIcRVVg_FVykcJNnULnMSIp_FyJSbwbAr4Ajme-aVR0ZSHGzTNV3Yi5GsThDkWmNifqhIaY2Ylxg3v3PBX0hx_muP2PjkBRV-lmZ-gGcIoi0eh33wYFSf73LqKQQ3fRFhA7Bkbjo4PNAQSXUEUu0Xmdc-NsUlCel8c2kLGZvMckauArgnisAYC_aq0iaGVRbwzl5_wN79CYky0gAF1YfWrAp5crzcRsiEf_E-9b89EvD1OsLdHAgSHRXJiOoByg_lvOYnlwbe2MaOEdaF3dXu_X7Z_cnR9nkMRK9Wcar2wu01MpcZ6Pnoc7p11IhTSwGGyw4jWCprJCMOB3jsqPJNmnn7mNPt3S0yYx6FElOhFqYfnrBfEjXEV3u-TJEEmD2H4X1QCjjonNNOZefsJo-LfCDYIXYlQw96X0zL2gwrYPTdzZwegxtJTcMlMVMzpc9pSjh-72iPGA0IIRgB4GX6P35sQ7gDKGOj7ZmAjS_bXxMSmaqvYW2JPC2SsRjiWvDEQForxyAJXGEcvApncINk-c6rmd8hBvLPAzu9REDotvmUuj4qKmW_kvBmBGTgMxW-ySkFETJY5ypYU-pfkIMqlKtMcoPmpZYc61qcOYNsFEIJWbyP-8XQ6eZcq-pol2o3pv6_fCro0f_kWskPnwDLyelaRognVVMag1rmdCRC2TxaDR3UwA_BYaCEUySkjry6RLsB5DoAD_5py2uIDEUWB2kSGi4lPqL-_-ihkwYYfbPObSStxGLoWTtomI1AznRf3ct7aJjUWc2F6Ls2bnBbuP4F19UGkDB1ls0OA69wP48xEzNJQ4Ndr9RNjJtyAA0WREesEusi_rLxRdXCeddP31iJnXiQkMBbBqVCK9advHSJQHkE9X-1Tc96rJnG7epyzErs3D5aP-df_IVmAbDDz_0E9M6KwjA75Nmm4h-b6ORQWM1n11s_gMXS5jQsa9pZLfQfz-M58BBR6V4CwTx7Ud1L1h1RoRZ0ihMkrMvWClh2bn_LTiUG_J6Y6iv35YGF_hKJ-wkcIxo4zVSdECj6SSgvqZJm2UgogQgShod8fx3_Me-KYSAITTPoybU8YZcMDAWxsA5O8081ulUesf_TCITcUQ6a3gK6Zbs41L5j_hf3SbVLh1zTNcWnybMtZoJOQnEz7Vzlxmm1aeGjeN32Am75JQVixCAUv5TbjtQADnKTA0zDOzybiSU4zJ1BgZIFHhoA1HhECujKB8CtxPeng_SM9o1HNi6WsI5XFvMfgv2VNOTNgnJOfb7aKCpUvGUqeezzCcOCrc8JZjF0vtEHaYOfIT7nMCmFDGj65b_NB3Y7MkfORM0MbAat8NI8Pc9YqfjYsI0gEl6JB_onSNEWN27By9k5dsGTi4kSqKVICtpEe5OGgAs25tI71mk708bKQy2u5y88rhP22yMidyd23DOq97leV7yAsrQYgpN5iCiMBRRucf_RyAfk5iD2l7fTF7FvQAfo5xG9oGWIe7omk1PlhGEOL3S_RvwJ7oP6BK41zh4qyHaNm-_0OJXRC_VVG8oU0eLUKLZqbWt5E5Mn-aXhoJM_ZqP9uEBsK7cXpJjGznKKfVw6dYSuVSFQp3LmR5Yxjg8sBEeGLQRvnodXUpx9eTSv05W_9zkaJ1cJeDth1jnE1Asvjc7CW1nCaL0btXg5lFTK-itSRFvMLfQzQsHny1pZUjgHKZ2yMOgWArkc4fnOdwoQqDknxX7FRG6hVhJkXQuy-DWvXS2a3STae_dskzVv56I38dM8bDDg_ROMwC91khS9dJP9e7EuCQGg1su5SB0pCDdh_nO64IcnxJmh6UfR1w1ftDXGR88M6Eeq18quSavKP4Eb9MjoYAqBe2e2dq2zK2VuLArLL4vwWfjeUCgJbPChVG8Klb-QttJhdpTdXCJmIm50yRWluH4c7OzWmO0ifCxQlaO9vrcvarkh-XkcggfFRjYppmjFWaS_toEdYre-PM53wI6fqHoodCHUVWLTw3qVQZA9QiA3x44OzdFwsE3W0p42t34AluQazQ8SbvgBOgdKkxqWQObiGd5VO9v6415nroVdecD64sKDfYAcRNrRMg8rN466P_IucskA4KX_s6inkxEZ9dcUizgpjpeeYySIOdmq-_1_Fm9aj-YPUXzwIGPjh4pwZeZEggNaos7lM1Eiv8bza1SVnMli2Nin7gGvHAyvWec_hQC8qK2Uy_4vBkVAns5KfSMQRLEwbR4_aGRePuGBIfM2szp1qAuGCfEXqzyabKRGvQvGg8-HNmpwGIt3OOzeGQwJsceMeYasTIqZvHXgBLVyZC1EQTHdwyU8V8kELdkpPc3rxcx5ag0dUqwreisnYmpHakZqaDePvjOmpx2YAEMU2Xd0TElOL3MOKlpO7KFUw2qmGUjDGJ5G6LNMd-UckNkK54Y4wX1dymiig8GNnlU6031nAv9IU7Cbl-ErXWtaXg-yboTc6WeWLGCdKQVRPyDx_Kzt3LjndkE3OtL0j5_V1r8d9toRCAQjHQ4ZfDjZ6w4gGm8wlV_sm2Q23G5geoY_CctyE2vHM7uwkSfBbGGBW1SZtufhvmHmpqkQWvKtBPIsprPQiB92I01GgYStd4MwX9K41BKVuJpZyTYSkoyCLTFP0-qhV0vlpg9Ri28o0YNj0YDnxxjaVEHwjVEdc5J-CepZ_QrfuNC22AbaVA7z5pZQ4zOFRqPijk_BdQO9LJcU7m48oKDQPAtE8DmSlXvJFmZDmhI6YuzDd7pKzRLaVyy2OGCtkf3Z39dUvKOszrkitBD3jMWt7rMLmsUQ5RnQPcH1HEHBVs6qhxUrXIrMq-U0s_IsNIEl3A2egrbSjX2uhiud8leJcanpj9q_D3hciK-_JPmeQibaMdR9kljhEF4LF_hF73LSVupgaDUwXuol6J1YkOmX-EdB5RY7IAkprHHEsp66j8R2itEwjbRD8Yvekk12-KWn2y0zrpAuyvyJaIY4UxfPSsfc9Z8f24Hmk6uuvhfbfzCL5Pwo5K1YHISRKbwBaQxH8eXm8y-8bAFDbpD3-y71eUgx4EkACMk8aNaNniPqgtpEXPKwy1uUpMtBjSxNlHDaeVl6wVtZbL5rBnQv8p6aX4FqoLK1OARnFq9odhabfXhNNtBuAdT6-XGZ9DEydA-VSeWqyMdnmReSGmgRxLit2DwahYgmKGjXMtkqrH1nrSe1GRVlokvpngzen1-Mvx7wcm4c4ElGODMYCWUAvNMdW0D_wE0nwXeQwAiMrWWHxm6WOOhpD8wuI_2egztsts7OmbUZ6f6h5OhTLk6W5S7MSltANSYYIvFp_MB5C2WfrQtZhfUaxShr9qLIwViDo24PoAatp20HYLk6Ar1dbJFMHGTkk3KGvB4Q_BLR3TrXb_c8MTYYSUuhup1SMbzxj44X1_Qb3a2Fxq7CM9t8rgioyPef9rqvnMuA7aUb9jtllxNIXG6FX0nBJeNKEObzNF-z3XVzAKrrAXNFEHEWp4CzC8HGj_T_jDpZ3RqZSCS3MB49k3d8Fyz-20sPQ5p5Ln7WtK_kaFusqwZW8rSBBA-nriSy2uudsw_4wK5FeEBWPDM41KiKEb2x3csFI5tInv2w4DOPnozH0U08Tcqj0dq7kteIxhzNfHvOPpRwwRIjMzaRuPfOMKpMMQid0ys9ndgOL80Zh5sDi2Mu9BTS0YUfC6Uo0jylh6_AtnIC7xDIga7bJ900l0YP59vGmyiaOs8aRVZ2k7RBCkiVi0itCrLBiY7uNeLplV09nrRvdf6Kl3UpVLAyUhfoVku9Ef0m78VMyoCnOiCSHmOcC1lp7rmmqT_JGnAqWV9uo-79L7tILlGQMeb57CaGLzhLvpheQ6EfRYuZPwK9tVjfA0nZFlGKwnxTF3S6mNmjfXMiWrVUNP67aO5mN_7OJT60xLS-693klK_KUaCLqfktt5n5894yNVRfkZFgQthcGuYS8DiqEhgi9e1F0tLRZD3C1vLh7rHPDYtOFczRWJZq9vZrcts682v1ANeF98Uw7JRkdIr7N0bk_KdZgzuO0tkJ1Oh_7EkzGanjcndISXjToAh1F3AbDMK6wBnHQe15jAEuwwhdYtEdC839SZ77bbwTvzxFcDlMI65-goBfadCIqFQEbgtN-f8h9icgPjZc5z4zPJpEMlKpLlHuPvoJwMBt0xY_TDAiyvd0MhpbwLPivzM2geNIddgF7N88T3V9bZ2pg==.eyJlbmRwb2ludF9zbHVnIjoib3BlbmFpL2dwdC01LjYtbHVuYS0yMDI2MDcwOXxvcGVuYWkifQ",
              "format": "openai-responses-v1",
              "id": "rs_003de5363961e675016aa4b95c43b487d1bd2993906738b993",
              "index": 0,
              "type": "reasoning.encrypted"
            },
            {
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              "format": "openai-responses-v1",
              "id": "rs_003de5363961e675016aa4b961777487d183ffc733b9a2cb1e",
              "index": 1,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_JpleNATqyWGlvC1mz6xSHO2u",
          "name": "TodoWrite",
          "input": {
            "todos": [
              {
                "activeForm": "Inspecting the failover services and persistent state",
                "content": "Inspect the failover services and persistent state",
                "status": "completed"
              },
              {
                "activeForm": "Fencing and promoting the replica safely",
                "content": "Fence the failed primary and promote the replica safely",
                "status": "in_progress"
              },
              {
                "activeForm": "Switching and persisting the public proxy topology",
                "content": "Switch and persist the public proxy topology",
                "status": "pending"
              },
              {
                "activeForm": "Verifying API behavior and restart durability",
                "content": "Verify API behavior and restart durability",
                "status": "pending"
              },
              {
                "activeForm": "Leaving the recovered service running",
                "content": "Leave the recovered service running",
                "status": "pending"
              }
            ]
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_JpleNATqyWGlvC1mz6xSHO2u",
          "content": "Started:\n  > Fencing and promoting the replica safely\nCompleted:\n  ✓ Inspect the failover services and persistent state\n\nCurrent tasks:\n  ✓ Inspect the failover services and persistent state\n  ◉ Fence the failed primary and promote the replica safely\n  ○ Switch and persist the public proxy topology\n  ○ Verify API behavior and restart durability\n  ○ Leave the recovered service running\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "tool_use",
          "id": "call_tm2lBFizp40zznVSGfzv5krt",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "set -euo pipefail\nstate=/var/lib/failover\nfailed=$state/primary.failed\nfenced=$state/primary.fenced\nrole=$state/replica.role\nupstream=$state/upstream\n\n# Refuse promotion unless the failed-primary evidence is still present and 8081 is fenced.\ntest -f \"$failed\"\nif ss -ltn '( sport = :8081 )' | grep -q LISTEN; then\n  echo 'refusing promotion: old primary is listening on 8081' >&2\n  exit 1\nfi\n\n/usr/bin/python3 - <<'PY'\nimport os, tempfile\nstate = '/var/lib/failover'\nfailed = os.path.join(state, 'primary.failed')\nfenced = os.path.join(state, 'primary.fenced')\nrole = os.path.join(state, 'replica.role')\nupstream = os.path.join(state, 'upstream')\n\ndef durable_atomic(path, data, mode=0o644):\n    directory = os.path.dirname(path)\n    fd, tmp = tempfile.mkstemp(prefix='.' + os.path.basename(path) + '.', dir=directory)\n    try:\n        os.fchmod(fd, mode)\n        os.write(fd, data)\n        os.fsync(fd)\n        os.close(fd)\n        os.replace(tmp, path)\n        dfd = os.open(directory, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n        try:\n            os.fsync(dfd)\n        finally:\n            os.close(dfd)\n    except BaseException:\n        try:\n            os.close(fd)\n        except OSError:\n            pass\n        try:\n            os.unlink(tmp)\n        except FileNotFoundError:\n            pass\n        raise\n\n# Fence first, and make that marker durable before enabling any writes.\nif not os.path.exists(fenced):\n    fd = os.open(fenced, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644)\n    try:\n        os.fsync(fd)\n    finally:\n        os.close(fd)\n    dfd = os.open(state, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n    try:\n        os.fsync(dfd)\n    finally:\n        os.close(dfd)\n\n# Route to the still-read-only replica first; then enable its primary role.\ndurable_atomic(upstream, b'8082\\n')\ndurable_atomic(role, b'primary\\n')\nPY\n\n# Ensure the failed-primary evidence was not altered.\ntest -f \"$failed\"\n# Keep the service manager's enabled topology; refresh units without touching data.\nsystemctl daemon-reload\nsystemctl restart failover-replica.service failover-proxy.service\nprintf '%s\\n' 'promotion complete'",
            "description": "Durably fence old primary and promote replica",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_tm2lBFizp40zznVSGfzv5krt",
          "content": "sh: line 15: /usr/bin/python3: No such file or directory\n\nExit code: exit status: 127",
          "is_error": true
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "**Diagnosing Python Path Issues**\n\nI need to diagnose why there's no `/usr/bin/python3` available. It seems like the command failed before any changes could be made due to the Python path issue. I think I should retry a different action rather than doing the same thing. Using a known path for `python3` might help, though the shell path looks like it isn't configured. I also need to inspect the absent marker, which could be part of the problem.",
          "details": [
            {
              "format": "openai-responses-v1",
              "index": 0,
              "summary": "**Diagnosing Python Path Issues**\n\nI need to diagnose why there's no `/usr/bin/python3` available. It seems like the command failed before any changes could be made due to the Python path issue. I think I should retry a different action rather than doing the same thing. Using a known path for `python3` might help, though the shell path looks like it isn't configured. I also need to inspect the absent marker, which could be part of the problem.",
              "type": "reasoning.summary"
            },
            {
              "data": "gAAAAABqpLlvRkWuiAWD4C-UwLFKxY5gLeFz9ty1NZWzw7gtn9mMOV6OHXHTSA_woGEUs0Pxv7QyGQWazlvRsLGzt3S5U986goBOO9M2WHLOkqtVqPU_ZPUrM-fWgdsQAyYCrwcWPF4-ByLnbtXOieaZMvA_7lqQi5dvRdfll-E6Wocza5EO6Vbim285vc5y8AzvIAGdAXijaFMspuIz00tR3D-T01_ku-ah6QyGRAGVsdZdPhbJeYKbVYYJbflGCRfZf72O1SQoDu1EcYD8o2Y4nphCa7e4gAMVziEvTizyIgLrIeaceHOsorocOShcT-AQLzKBWi95ZLAvvdZQsAVJwMC0J2gTL8dCJMFbumUX7bSXyrRuNxG8ct4_3ky0HoNL1DyTfQNiioxHM-7U_wSeqIH5bviIZIgT5sZg-a904Urb1ZDZFy9gjs25ie97myRwrA30oFSOVatVdjqrv9V_1VOQG90S8kQ9gq5uTowqaj0A9Vnz5gbjeRie4Hmcnewd8JTrujQA_vJp_yjMPIns_7_H-WBXAgT-h5Z3pSZoKRDdJPWkOP2waPGT28MGiz1OyyAYE9K4k7NbXdEtXIR_l2GbvlU7xS37EJKlvoPvpKpie0OmA66mEKNOFYnRu2XmMiv5jrq5D98ZggN4QUkwZzlTUXF0L-dNOasfok8oPCo_we56wdrqtFBiV_j2-WYhZhc9fNqIDIokjB-bEzi55GkMGKhcQZ_JhM1HwkTeaRngCjWNPP5AfJyudnAmEJHC3no2z1W7FM8jVf_rV59BlDZ3Ciz-Mo9LIlaVmLoZ3SxylElGyOQJUEoA5KLryL3lzFgANc3tsrJuV2WOA7UWru3SqKA73GDfUB1w1jPtGxTfKc9PQ7OwAitpvDwOGtOAqueam6sg0Rf51y1giMeF2QVH-TvkZDvR4guU1w4bqWttd2QmHatcKyfUum9PL0ZhV4fZ0Koa2G4S4UO4RWBJDM4SBE15zMLDNRr9PhM8ag9jxkTN9Vbospku8DBaOocNQWHa-CPDNGYM56CoAAObmGiDBCweT6YGBuaA_LJijvNsl_BUZxUiA2AxAAa3JEB4wgqnsOM-3AbqdF3s7uDoCMW4vgkVt0KLMcD9xKLWwnwaBAPTLc6bizkMyfcLgXTWt7oDwT6PAaBqEmWGeyuqFkqrPN7xdqqEHsGzocLdvQ8DnbXiu5pQxd3_fbS6yo40PiYF3aI3IfE9IsT0lLEFYOBPVkDIjXLyA61Qpf3Zpxbdn-xCzY9mI6Pc3WOzaJthOEP8_8F5AgFR8YyzQqgUtCRXjvXn2u8x0uqbV5GWI7mJ3rGzk4N90LnCkrBO-9Sb8RH53lLY7Ks6T3viAXe_d6iM_V9039nGK2oOS8S5UC3-G3warWtjRZ-8NUulpkhZKI6GCaaf2zW8a_uVX1BVd0m27UfSZxpUOoHXKXoU1olT16p8rX00VwVKaSTOE-w2tYqcaFV3aR07PvuoOgfyI99ucWmWtVjg4SbijL_aButaB0SHgKZ0ClXKU9aJFrEZEz_cYI0xvwtVZJTGYsF5NNrEXh4tXro6X1wIP48b5pEPn5tKDuNg14b6Xso6zZNM9e0iUF33FK6dwUx1UzQFlgMG1_tK_vAG-3tUPyeYQ2Qn61mhjBxDVboYQOj5Tl-w8TocLNE5FeP_STQvLEpR8qiZh1liqA==.eyJlbmRwb2ludF9zbHVnIjoib3BlbmFpL2dwdC01LjYtbHVuYS0yMDI2MDcwOXxvcGVuYWkifQ",
              "format": "openai-responses-v1",
              "id": "rs_003de5363961e675016aa4b96d7b7887d1acd8f035c05af54d",
              "index": 1,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_gaEmpU7nAfl2XgFaA5BkJhSt",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "set -euo pipefail\nstate=/var/lib/failover\nfailed=$state/primary.failed\nfenced=$state/primary.fenced\nrole=$state/replica.role\nupstream=$state/upstream\n\ntest -f \"$failed\"\nif ss -ltn '( sport = :8081 )' | grep -q LISTEN; then\n  echo 'refusing promotion: old primary is listening on 8081' >&2\n  exit 1\nfi\n\n/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\nimport os, tempfile\nstate = '/var/lib/failover'\nfenced = os.path.join(state, 'primary.fenced')\nrole = os.path.join(state, 'replica.role')\nupstream = os.path.join(state, 'upstream')\n\ndef sync_dir():\n    dfd = os.open(state, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n    try:\n        os.fsync(dfd)\n    finally:\n        os.close(dfd)\n\ndef durable_atomic(path, data, mode=0o644):\n    fd, tmp = tempfile.mkstemp(prefix='.' + os.path.basename(path) + '.', dir=state)\n    try:\n        os.fchmod(fd, mode)\n        os.write(fd, data)\n        os.fsync(fd)\n        os.close(fd)\n        os.replace(tmp, path)\n        sync_dir()\n    except BaseException:\n        try:\n            os.close(fd)\n        except OSError:\n            pass\n        try:\n            os.unlink(tmp)\n        except FileNotFoundError:\n            pass\n        raise\n\n# Fence first, and make that marker durable before enabling any writes.\nif not os.path.exists(fenced):\n    fd = os.open(fenced, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644)\n    try:\n        os.fsync(fd)\n    finally:\n        os.close(fd)\n    sync_dir()\n\n# Route to the still-read-only replica first; then enable its primary role.\ndurable_atomic(upstream, b'8082\\n')\ndurable_atomic(role, b'primary\\n')\nPY\n\ntest -f \"$failed\"\nsystemctl daemon-reload\nsystemctl restart failover-replica.service failover-proxy.service\nprintf '%s\\n' 'promotion complete'",
            "description": "Durably fence old primary and promote replica",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_gaEmpU7nAfl2XgFaA5BkJhSt",
          "content": "promotion complete\n"
        }
      ]
    }
  ],
  "tool_trace": [
    {
      "id": "call_pXRUhwCOFhlBA4p58dqUPcwf",
      "name": "TodoWrite",
      "input": {
        "todos": [
          {
            "activeForm": "Inspecting the failover services and persistent state",
            "content": "Inspect the failover services and persistent state",
            "status": "in_progress"
          },
          {
            "activeForm": "Fencing and promoting the replica safely",
            "content": "Fence the failed primary and promote the replica safely",
            "status": "pending"
          },
          {
            "activeForm": "Switching and persisting the public proxy topology",
            "content": "Switch and persist the public proxy topology",
            "status": "pending"
          },
          {
            "activeForm": "Verifying API behavior and restart durability",
            "content": "Verify API behavior and restart durability",
            "status": "pending"
          },
          {
            "activeForm": "Leaving the recovered service running",
            "content": "Leave the recovered service running",
            "status": "pending"
          }
        ]
      },
      "output": "Added:\n  + Inspect the failover services and persistent state\n  + Fence the failed primary and promote the replica safely\n  + Switch and persist the public proxy topology\n  + Verify API behavior and restart durability\n  + Leave the recovered service running\n\nCurrent tasks:\n  ◉ Inspect the failover services and persistent state\n  ○ Fence the failed primary and promote the replica safely\n  ○ Switch and persist the public proxy topology\n  ○ Verify API behavior and restart durability\n  ○ Leave the recovered service running\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 3610,
      "duration_ms": 0
    },
    {
      "id": "call_EzOokO6N6dUR0YujOKca2Hrn",
      "name": "Glob",
      "input": {
        "include_build_dirs": false,
        "include_hidden": true,
        "path": "/var/lib/failover",
        "pattern": "*"
      },
      "output": "/var/lib/failover/records.sqlite3\n/var/lib/failover/primary.failed\n/var/lib/failover/replica.role\n/var/lib/failover/upstream",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 8878,
      "duration_ms": 1
    },
    {
      "id": "call_w0aaf3kdBJQxUKmtBTXEEvVV",
      "name": "Grep",
      "input": {
        "glob": "*",
        "include_build_dirs": false,
        "include_hidden": true,
        "output_mode": "content",
        "path": "/etc/systemd/system",
        "pattern": "failover|8080|8081|8082"
      },
      "output": "/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:2:Before=failover-replica.service failover-proxy.service\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:9:ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:2:After=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:3:Description=Healthy read-only failover replica\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:4:Requires=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:2:After=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:4:Requires=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:2:Before=failover-replica.service failover-proxy.service\n/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service:9:ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:2:After=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:3:Description=Healthy read-only failover replica\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:4:Requires=failover-seed.service\n/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:2:After=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:4:Requires=failover-seed.service\n/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service:10:ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 8880,
      "duration_ms": 254
    },
    {
      "id": "call_sLitnABVA8IlBwawzrU3Av51",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "set -o pipefail; printf '%s\\n' '--- listeners ---'; ss -ltnp '( sport = :8080 or sport = :8081 or sport = :8082 )' || true; printf '%s\\n' '--- processes ---'; ps -ef | grep -E 'failover|8080|8081|8082' | grep -v grep || true; printf '%s\\n' '--- files ---'; ls -la /var/lib/failover; printf '%s\\n' '--- systemd units ---'; systemctl list-units --all --type=service | grep -Ei 'failover|proxy|record' || true",
        "description": "Inspect listeners processes and service files",
        "timeout": 120000
      },
      "output": "--- listeners ---\nState  Recv-Q Send-Q Local Address:Port Peer Address:PortProcess\nLISTEN 0      5            0.0.0.0:8080      0.0.0.0:*    users:((\"python\",pid=555,fd=3))\nLISTEN 0      5          127.0.0.1:8082      0.0.0.0:*    users:((\"python\",pid=556,fd=3))\n--- processes ---\nroot         555       1  1 02:30 ?        00:00:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nroot         556       1  0 02:30 ?        00:00:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nroot         670     659  3 02:30 ?        00:00:00 /var/tmp/agents-of-empires-luna/claux --print Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win.   The controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors.  # Service contract  # Stateful primary failover contract  The public record service on port 8080 is unavailable because its proxy still targets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica is running on `127.0.0.1:8082`. Existing customer state is stored in `/var/lib/failover/records.sqlite3` and must not be discarded or replaced.  Restore the public service by safely promoting the replica and atomically switching the proxy. The replica reads its role from `/var/lib/failover/replica.role` on every request. It accepts writes only when that file contains `primary`. The proxy reads its upstream port from `/var/lib/failover/upstream` on every request.  The public API contract is:  - `GET /health`: `200` with exact body `ready`; - `GET /role`: `200` with exact body `primary` after promotion; - `PUT /records/<id>`: persist the UTF-8 body and return `204`; - `GET /records/<id>`: return the exact body, or `404` when absent.  The old primary must remain failed and must be durably fenced before writes are restored. Preserve `/var/lib/failover/primary.failed`, create `/var/lib/failover/primary.fenced`, and do not make port 8081 listen again. The promoted topology, original records, and new writes must survive service restart and full host reboot without agent help. --permission-mode bypass --output-format json --transcript /var/tmp/agents-of-empires-luna/transcript.json\n--- files ---\ntotal 28\ndrwxr-xr-x 2 root root  4096 Sep 12 02:30 .\ndrwxr-xr-x 9 root root  4096 Sep 12 02:30 ..\n-rw-r--r-- 1 root root     0 Sep 12 02:30 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 12 02:30 records.sqlite3\n-rw-r--r-- 1 root root     8 Sep 12 02:30 replica.role\n-rw-r--r-- 1 root root     5 Sep 12 02:30 upstream\n--- systemd units ---\n  failover-proxy.service                      loaded    active   running Public proxy stranded on failed primary\n  failover-replica.service                    loaded    active   running Healthy read-only failover replica\n  failover-seed.service                       loaded    active   exited  Seed failed-primary topology and replicated state\n  systemd-pcrlogin@0.service                  loaded    inactive dead    TPM NvPCR Measurement of User Record for UID 0\n  systemd-update-utmp.service                 loaded    active   exited  Record System Boot/Shutdown in UTMP\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 9135,
      "duration_ms": 68
    },
    {
      "id": "call_nl9TRVtdZrMi5G4fQXCAUtar",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "set -o pipefail; printf '%s\\n' '--- role ---'; [ -f /var/lib/failover/replica.role ] && od -An -tc /var/lib/failover/replica.role || true; printf '%s\\n' '--- upstream ---'; [ -f /var/lib/failover/upstream ] && od -An -tc /var/lib/failover/upstream || true; printf '%s\\n' '--- markers ---'; for f in /var/lib/failover/primary.failed /var/lib/failover/primary.fenced; do if [ -e \"$f\" ]; then printf '%s: ' \"$f\"; stat -c '%F %s bytes %y' \"$f\"; else printf '%s: ABSENT\\n' \"$f\"; fi; done; printf '%s\\n' '--- sqlite ---'; sqlite3 /var/lib/failover/records.sqlite3 '.tables' 2>&1 || true",
        "description": "Inspect failover role markers and database",
        "timeout": 120000
      },
      "output": "--- role ---\n   r   e   p   l   i   c   a  \\n\n--- upstream ---\n   8   0   8   1  \\n\n--- markers ---\n/var/lib/failover/primary.failed: regular empty file 0 bytes 2026-09-12 02:30:27.612000000 +0000\n/var/lib/failover/primary.fenced: ABSENT\n--- sqlite ---\nrecords\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 9204,
      "duration_ms": 68
    },
    {
      "id": "call_fQ3IdWhf8np4tNQAkwX8i1UI",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service",
        "limit": 200,
        "offset": 1
      },
      "output": "1\t[Unit]\n2\tAfter=failover-seed.service\n3\tDescription=Public proxy stranded on failed primary\n4\tRequires=failover-seed.service\n5\t\n6\t[Service]\n7\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n8\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n9\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n10\tExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n11\tRestart=always\n12\tRestartSec=1\n13\t\n14\t[Install]\n15\tWantedBy=multi-user.target\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15185,
      "duration_ms": 2
    },
    {
      "id": "call_KHKbqjZ3Xk0Tx6O3OUbhhdUf",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service",
        "limit": 200,
        "offset": 1
      },
      "output": "1\t[Unit]\n2\tAfter=failover-seed.service\n3\tDescription=Healthy read-only failover replica\n4\tRequires=failover-seed.service\n5\t\n6\t[Service]\n7\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n8\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n9\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n10\tExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n11\tRestart=always\n12\tRestartSec=1\n13\t\n14\t[Install]\n15\tWantedBy=multi-user.target\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15185,
      "duration_ms": 2
    },
    {
      "id": "call_jiyvDDXdoNXKbIMON1EqxaZW",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service",
        "limit": 200,
        "offset": 1
      },
      "output": "1\t[Unit]\n2\tBefore=failover-replica.service failover-proxy.service\n3\tDescription=Seed failed-primary topology and replicated state\n4\t\n5\t[Service]\n6\tEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\n7\tEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\n8\tEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\n9\tExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \n10\tRemainAfterExit=true\n11\tType=oneshot\n12\t\n13\t[Install]\n14\tWantedBy=multi-user.target\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15185,
      "duration_ms": 2
    },
    {
      "id": "call_ayVEHpfCSJl2bWeJvkQfmWzA",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py",
        "limit": 300,
        "offset": 1
      },
      "output": "1\timport http.client\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tUPSTREAM = \"/var/lib/failover/upstream\"\n4\tclass Handler(BaseHTTPRequestHandler):\n5\t    def forward(self):\n6\t        try:\n7\t            with open(UPSTREAM) as source: port = int(source.read().strip())\n8\t            body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n9\t            connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n10\t            connection.request(self.command, self.path, body=body)\n11\t            response = connection.getresponse(); data = response.read()\n12\t            self.send_response(response.status); self.send_header(\"Content-Length\", str(len(data))); self.end_headers(); self.wfile.write(data)\n13\t            connection.close()\n14\t        except Exception:\n15\t            self.send_response(502); self.send_header(\"Content-Length\", \"0\"); self.end_headers()\n16\t    do_GET = forward\n17\t    do_PUT = forward\n18\t    def log_message(self, *_): pass\n19\tThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15185,
      "duration_ms": 2
    },
    {
      "id": "call_BWN6k7mMfpMZoQI89y1LTwec",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py",
        "limit": 400,
        "offset": 1
      },
      "output": "1\timport sqlite3\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tDB = \"/var/lib/failover/records.sqlite3\"\n4\tROLE = \"/var/lib/failover/replica.role\"\n5\tdef role():\n6\t    with open(ROLE) as source: return source.read().strip()\n7\tdef database():\n8\t    connection = sqlite3.connect(DB, timeout=10)\n9\t    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n10\t    return connection\n11\tclass Handler(BaseHTTPRequestHandler):\n12\t    def send(self, status, body=b\"\"):\n13\t        self.send_response(status); self.send_header(\"Content-Length\", str(len(body))); self.end_headers(); self.wfile.write(body)\n14\t    def do_GET(self):\n15\t        if self.path == \"/health\": self.send(200, b\"ready\"); return\n16\t        if self.path == \"/role\": self.send(200, role().encode()); return\n17\t        if self.path.startswith(\"/records/\"):\n18\t            connection = database(); row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone(); connection.close()\n19\t            self.send(404 if row is None else 200, b\"\" if row is None else row[0].encode()); return\n20\t        self.send(404)\n21\t    def do_PUT(self):\n22\t        if not self.path.startswith(\"/records/\"): self.send(404); return\n23\t        if role() != \"primary\": self.send(503, b\"read-only\"); return\n24\t        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode(); connection = database()\n25\t        connection.execute(\"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\", (self.path[9:], value))\n26\t        connection.commit(); connection.close(); self.send(204)\n27\t    def log_message(self, *_): pass\n28\tThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15186,
      "duration_ms": 2
    },
    {
      "id": "call_lVU724LnoSLqG2tLQKbBBQSb",
      "name": "Read",
      "input": {
        "file_path": "/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start",
        "limit": 300,
        "offset": 1
      },
      "output": "1\t#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\n2\tset -e\n3\t\n4\tinstall -d -m 0755 /var/lib/failover\n5\t[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n6\t[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/replica.role\n7\ttouch /var/lib/failover/primary.failed\n8\t/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\n9\timport sqlite3\n10\tdb=sqlite3.connect('/var/lib/failover/records.sqlite3')\n11\tdb.execute('CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)')\n12\tfor record,value in [('customer-red-4a7','red-original'),('customer-blue-8d2','blue-original'),('customer-green-f31','green-original')]:\n13\t    db.execute('INSERT OR IGNORE INTO records(id,value) VALUES(?,?)',(record,value))\n14\tdb.commit()\n15\tPY\n16\t\n17\t\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15186,
      "duration_ms": 2
    },
    {
      "id": "call_a7JfuvwxrXneEoaD4tPpthKD",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "set -o pipefail; systemctl cat failover-proxy.service failover-replica.service failover-seed.service; printf '%s\\n' '--- enabled ---'; systemctl is-enabled failover-seed.service failover-replica.service failover-proxy.service; printf '%s\\n' '--- status ---'; systemctl status --no-pager failover-seed.service failover-replica.service failover-proxy.service || true; printf '%s\\n' '--- db ---'; sqlite3 -header -box /var/lib/failover/records.sqlite3 'select * from records order by id;'",
        "description": "Inspect failover unit definitions and records",
        "timeout": 120000
      },
      "output": "# /etc/systemd/system/failover-proxy.service -> /nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service\n[Unit]\nAfter=failover-seed.service\nDescription=Public proxy stranded on failed primary\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-replica.service -> /nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service\n[Unit]\nAfter=failover-seed.service\nDescription=Healthy read-only failover replica\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-seed.service -> /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service\n[Unit]\nBefore=failover-replica.service failover-proxy.service\nDescription=Seed failed-primary topology and replicated state\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n--- enabled ---\nenabled\nenabled\nenabled\n--- status ---\n● failover-seed.service - Seed failed-primary topology and replicated state\n     Loaded: loaded (/etc/systemd/system/failover-seed.service; enabled; preset: ignored)\n     Active: active (exited) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: f22542d714aa4349a75f7680c910d475\n    Process: 497 ExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start (code=exited, status=0/SUCCESS)\n   Main PID: 497 (code=exited, status=0/SUCCESS)\n         IP: 0B in, 0B out\n         IO: 0B read, 52K written\n   Mem peak: 10.8M\n        CPU: 97ms\n\nSep 12 02:30:27 failover-three systemd[1]: Starting Seed failed-primary topology and replicated state...\nSep 12 02:30:28 failover-three systemd[1]: Finished Seed failed-primary topology and replicated state.\n\n● failover-replica.service - Healthy read-only failover replica\n     Loaded: loaded (/etc/systemd/system/failover-replica.service; enabled; preset: ignored)\n     Active: active (running) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: 75bc86099bf443e49bb291f3f0cb858c\n   Main PID: 556 (python)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 17.2M (peak: 17.2M)\n        CPU: 165ms\n     CGroup: /system.slice/failover-replica.service\n             └─556 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\n\nSep 12 02:30:28 failover-three systemd[1]: Started Healthy read-only failover replica.\n\n● failover-proxy.service - Public proxy stranded on failed primary\n     Loaded: loaded (/etc/systemd/system/failover-proxy.service; enabled; preset: ignored)\n     Active: active (running) since Sat 2026-09-12 02:30:28 UTC; 22s ago\n Invocation: ef07c8f11d1f432a92b7f95b3044e530\n   Main PID: 555 (python)\n         IP: 5.4K in, 5.7K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 15.7M (peak: 15.9M)\n        CPU: 219ms\n     CGroup: /system.slice/failover-proxy.service\n             └─555 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\n\nSep 12 02:30:28 failover-three systemd[1]: Started Public proxy stranded on failed primary.\n--- db ---\n╭────────────────────┬────────────────╮\n│         id         │     value      │\n╞════════════════════╪════════════════╡\n│ customer-blue-8d2  │ blue-original  │\n│ customer-green-f31 │ green-original │\n│ customer-red-4a7   │ red-original   │\n╰────────────────────┴────────────────╯\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 15188,
      "duration_ms": 115
    },
    {
      "id": "call_JpleNATqyWGlvC1mz6xSHO2u",
      "name": "TodoWrite",
      "input": {
        "todos": [
          {
            "activeForm": "Inspecting the failover services and persistent state",
            "content": "Inspect the failover services and persistent state",
            "status": "completed"
          },
          {
            "activeForm": "Fencing and promoting the replica safely",
            "content": "Fence the failed primary and promote the replica safely",
            "status": "in_progress"
          },
          {
            "activeForm": "Switching and persisting the public proxy topology",
            "content": "Switch and persist the public proxy topology",
            "status": "pending"
          },
          {
            "activeForm": "Verifying API behavior and restart durability",
            "content": "Verify API behavior and restart durability",
            "status": "pending"
          },
          {
            "activeForm": "Leaving the recovered service running",
            "content": "Leave the recovered service running",
            "status": "pending"
          }
        ]
      },
      "output": "Started:\n  > Fencing and promoting the replica safely\nCompleted:\n  ✓ Inspect the failover services and persistent state\n\nCurrent tasks:\n  ✓ Inspect the failover services and persistent state\n  ◉ Fence the failed primary and promote the replica safely\n  ○ Switch and persist the public proxy topology\n  ○ Verify API behavior and restart durability\n  ○ Leave the recovered service running\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 26707,
      "duration_ms": 0
    },
    {
      "id": "call_tm2lBFizp40zznVSGfzv5krt",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "set -euo pipefail\nstate=/var/lib/failover\nfailed=$state/primary.failed\nfenced=$state/primary.fenced\nrole=$state/replica.role\nupstream=$state/upstream\n\n# Refuse promotion unless the failed-primary evidence is still present and 8081 is fenced.\ntest -f \"$failed\"\nif ss -ltn '( sport = :8081 )' | grep -q LISTEN; then\n  echo 'refusing promotion: old primary is listening on 8081' >&2\n  exit 1\nfi\n\n/usr/bin/python3 - <<'PY'\nimport os, tempfile\nstate = '/var/lib/failover'\nfailed = os.path.join(state, 'primary.failed')\nfenced = os.path.join(state, 'primary.fenced')\nrole = os.path.join(state, 'replica.role')\nupstream = os.path.join(state, 'upstream')\n\ndef durable_atomic(path, data, mode=0o644):\n    directory = os.path.dirname(path)\n    fd, tmp = tempfile.mkstemp(prefix='.' + os.path.basename(path) + '.', dir=directory)\n    try:\n        os.fchmod(fd, mode)\n        os.write(fd, data)\n        os.fsync(fd)\n        os.close(fd)\n        os.replace(tmp, path)\n        dfd = os.open(directory, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n        try:\n            os.fsync(dfd)\n        finally:\n            os.close(dfd)\n    except BaseException:\n        try:\n            os.close(fd)\n        except OSError:\n            pass\n        try:\n            os.unlink(tmp)\n        except FileNotFoundError:\n            pass\n        raise\n\n# Fence first, and make that marker durable before enabling any writes.\nif not os.path.exists(fenced):\n    fd = os.open(fenced, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644)\n    try:\n        os.fsync(fd)\n    finally:\n        os.close(fd)\n    dfd = os.open(state, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n    try:\n        os.fsync(dfd)\n    finally:\n        os.close(dfd)\n\n# Route to the still-read-only replica first; then enable its primary role.\ndurable_atomic(upstream, b'8082\\n')\ndurable_atomic(role, b'primary\\n')\nPY\n\n# Ensure the failed-primary evidence was not altered.\ntest -f \"$failed\"\n# Keep the service manager's enabled topology; refresh units without touching data.\nsystemctl daemon-reload\nsystemctl restart failover-replica.service failover-proxy.service\nprintf '%s\\n' 'promotion complete'",
        "description": "Durably fence old primary and promote replica",
        "timeout": 120000
      },
      "output": "sh: line 15: /usr/bin/python3: No such file or directory\n\nExit code: exit status: 127",
      "is_error": true,
      "read_only": false,
      "started_after_ms": 32451,
      "duration_ms": 81
    },
    {
      "id": "call_gaEmpU7nAfl2XgFaA5BkJhSt",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "set -euo pipefail\nstate=/var/lib/failover\nfailed=$state/primary.failed\nfenced=$state/primary.fenced\nrole=$state/replica.role\nupstream=$state/upstream\n\ntest -f \"$failed\"\nif ss -ltn '( sport = :8081 )' | grep -q LISTEN; then\n  echo 'refusing promotion: old primary is listening on 8081' >&2\n  exit 1\nfi\n\n/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\nimport os, tempfile\nstate = '/var/lib/failover'\nfenced = os.path.join(state, 'primary.fenced')\nrole = os.path.join(state, 'replica.role')\nupstream = os.path.join(state, 'upstream')\n\ndef sync_dir():\n    dfd = os.open(state, os.O_RDONLY | getattr(os, 'O_DIRECTORY', 0))\n    try:\n        os.fsync(dfd)\n    finally:\n        os.close(dfd)\n\ndef durable_atomic(path, data, mode=0o644):\n    fd, tmp = tempfile.mkstemp(prefix='.' + os.path.basename(path) + '.', dir=state)\n    try:\n        os.fchmod(fd, mode)\n        os.write(fd, data)\n        os.fsync(fd)\n        os.close(fd)\n        os.replace(tmp, path)\n        sync_dir()\n    except BaseException:\n        try:\n            os.close(fd)\n        except OSError:\n            pass\n        try:\n            os.unlink(tmp)\n        except FileNotFoundError:\n            pass\n        raise\n\n# Fence first, and make that marker durable before enabling any writes.\nif not os.path.exists(fenced):\n    fd = os.open(fenced, os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o644)\n    try:\n        os.fsync(fd)\n    finally:\n        os.close(fd)\n    sync_dir()\n\n# Route to the still-read-only replica first; then enable its primary role.\ndurable_atomic(upstream, b'8082\\n')\ndurable_atomic(role, b'primary\\n')\nPY\n\ntest -f \"$failed\"\nsystemctl daemon-reload\nsystemctl restart failover-replica.service failover-proxy.service\nprintf '%s\\n' 'promotion complete'",
        "description": "Durably fence old primary and promote replica",
        "timeout": 120000
      },
      "output": "promotion complete\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 37804,
      "duration_ms": 663
    }
  ],
  "timing": {
    "total_duration_ms": 38467,
    "model_rounds": [
      {
        "index": 1,
        "started_after_ms": 0,
        "duration_ms": 3610,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 191,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 2595,
          "cost_usd": 0.00087855
        }
      },
      {
        "index": 2,
        "started_after_ms": 3878,
        "duration_ms": 4999,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 520,
          "cache_read_tokens": 2595,
          "cache_creation_tokens": 309,
          "cost_usd": 0.00075375
        }
      },
      {
        "index": 3,
        "started_after_ms": 9275,
        "duration_ms": 5909,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 591,
          "cache_read_tokens": 2904,
          "cache_creation_tokens": 2931,
          "cost_usd": 0.00150063
        }
      },
      {
        "index": 4,
        "started_after_ms": 15308,
        "duration_ms": 11396,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 1063,
          "cache_read_tokens": 5835,
          "cache_creation_tokens": 6136,
          "cost_usd": 0.0029269
        }
      },
      {
        "index": 5,
        "started_after_ms": 26723,
        "duration_ms": 5725,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 662,
          "cache_read_tokens": 11971,
          "cache_creation_tokens": 1154,
          "cost_usd": 0.00132292
        }
      },
      {
        "index": 6,
        "started_after_ms": 32536,
        "duration_ms": 5267,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 658,
          "cache_read_tokens": 13125,
          "cache_creation_tokens": 699,
          "cost_usd": 0.00122745
        }
      }
    ]
  }
}