{
  "schema_version": 2,
  "model": "minimax/minimax-m3",
  "outcome": {
    "status": "running"
  },
  "usage": {
    "input_tokens": 6742,
    "output_tokens": 1844,
    "cache_read_tokens": 9321,
    "cache_creation_tokens": 0,
    "cost_usd": 0.00479466
  },
  "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": "Let me start by understanding the environment and the task at hand.\n\nThe task is to recover a failed stateful primary service:\n1. There's a proxy on port 8080 pointing to old primary at 127.0.0.1:8081 (failed)\n2. A healthy read-only replica is at 127.0.0.1:8082\n3. Customer data is in `/var/lib/failover/records.sqlite3`\n4. Need to promote the replica and switch the proxy atomically\n5. Need to fence the old primary durably\n6. Must survive restarts/reboots\n\nLet me explore the environment first.",
          "details": [
            {
              "format": "unknown",
              "index": 0,
              "text": "Let me start by understanding the environment and the task at hand.\n\nThe task is to recover a failed stateful primary service:\n1. There's a proxy on port 8080 pointing to old primary at 127.0.0.1:8081 (failed)\n2. A healthy read-only replica is at 127.0.0.1:8082\n3. Customer data is in `/var/lib/failover/records.sqlite3`\n4. Need to promote the replica and switch the proxy atomically\n5. Need to fence the old primary durably\n6. Must survive restarts/reboots\n\nLet me explore the environment first.",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_FNDYhlJBdTTvRL1QQ0pYhCSb",
          "name": "Bash",
          "input": {
            "command": "ls -la /var/lib/failover/ 2>&1; echo \"---\"; ls -la / 2>&1 | head -30",
            "description": "Inspect failover directory and root"
          }
        },
        {
          "type": "tool_use",
          "id": "call_c3MzZl6oQuEVCsuQo8HjB9BW",
          "name": "Bash",
          "input": {
            "command": "ss -tlnp 2>&1; echo \"---\"; ps aux 2>&1 | head -30",
            "description": "Check listening ports and processes"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_FNDYhlJBdTTvRL1QQ0pYhCSb",
          "content": "total 28\ndrwxr-xr-x 2 root root  4096 Sep 10 15:36 .\ndrwxr-xr-x 9 root root  4096 Sep 10 15:36 ..\n-rw-r--r-- 1 root root     0 Sep 10 15:36 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 10 15:36 records.sqlite3\n-rw-r--r-- 1 root root     8 Sep 10 15:36 replica.role\n-rw-r--r-- 1 root root     5 Sep 10 15:36 upstream\n---\ntotal 64\ndrwxr-xr-x  17 root root  4096 Sep 10 15:36 .\ndrwxr-xr-x  17 root root  4096 Sep 10 15:36 ..\ndrwxr-xr-x   2 root root  4096 Sep 10 15:35 bin\ndrwxr-xr-x  17 root root  3260 Sep 10 15:36 dev\ndrwxr-xr-x  21 root root  4096 Sep 10 15:36 etc\ndrwxr-xr-x   2 root root  4096 Sep 10 15:35 home\ndrwxr-xr-x   2 root root  4096 Sep 10 15:36 lib64\ndrwx------   2 root root 16384 Sep 10 15:35 lost+found\ndrwxr-xr-x   6 root root  4096 Sep 10 15:36 nix\ndr-xr-xr-x 106 root root     0 Sep 10 15:35 proc\ndrwx------   6 root root  4096 Sep 10 15:36 root\ndrwxr-xr-x  19 root root   500 Sep 10 15:36 run\ndrwxr-xr-x   2 root root  4096 Sep 10 15:36 srv\ndr-xr-xr-x  13 root root     0 Sep 10 15:35 sys\ndrwxrwxrwt  11 root root  4096 Sep 10 15:36 tmp\ndrwxr-xr-x   3 root root  4096 Sep 10 15:36 usr\ndrwxr-xr-x   9 root root  4096 Sep 10 15:36 var\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_c3MzZl6oQuEVCsuQo8HjB9BW",
          "content": "State  Recv-Q Send-Q Local Address:Port  Peer Address:PortProcess\nLISTEN 0      128        127.0.0.1:18004      0.0.0.0:*    users:((\"sshd-session\",pid=630,fd=10))\nLISTEN 0      5            0.0.0.0:8080       0.0.0.0:*    users:((\"python\",pid=552,fd=3))\nLISTEN 0      4096   127.0.0.53%lo:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=23))\nLISTEN 0      4096         0.0.0.0:5355       0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=14))\nLISTEN 0      4096      127.0.0.54:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=25))\nLISTEN 0      128          0.0.0.0:22         0.0.0.0:*    users:((\"sshd\",pid=569,fd=6))\nLISTEN 0      5          127.0.0.1:8082       0.0.0.0:*    users:((\"python\",pid=553,fd=3))\nLISTEN 0      4096            [::]:5355          [::]:*    users:((\"systemd-resolve\",pid=300,fd=16))\nLISTEN 0      128             [::]:22            [::]:*    users:((\"sshd\",pid=569,fd=7))\n---\nUSER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot           1  6.3  1.5  18620 11608 ?        Ss   15:35   0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=46\nroot           2  0.0  0.0      0     0 ?        S    15:35   0:00 [kthreadd]\nroot           3  0.0  0.0      0     0 ?        S    15:35   0:00 [pool_workqueue_release]\nroot           4  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-rcu_gp]\nroot           5  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-sync_wq]\nroot           6  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-kvfree_rcu_reclaim]\nroot           7  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-slub_flushwq]\nroot           8  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-netns]\nroot           9  0.0  0.0      0     0 ?        I    15:35   0:00 [kworker/0:0-cgroup_free]\nroot          10  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/0:0H-kblockd]\nroot          11  0.0  0.0      0     0 ?        I    15:35   0:00 [kworker/0:1-cgroup_free]\nroot          12  0.1  0.0      0     0 ?        I    15:35   0:00 [kworker/u4:0-events_unbound]\nroot          13  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-mm_percpu_wq]\nroot          14  1.1  0.0      0     0 ?        I    15:35   0:00 [kworker/u4:1-events_unbound]\nroot          15  0.0  0.0      0     0 ?        S    15:35   0:00 [ksoftirqd/0]\nroot          16  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_preempt]\nroot          17  0.0  0.0      0     0 ?        S    15:35   0:00 [rcu_exp_par_gp_kthread_worker/0]\nroot          18  0.0  0.0      0     0 ?        S    15:35   0:00 [rcu_exp_gp_kthread_worker]\nroot          19  0.0  0.0      0     0 ?        S    15:35   0:00 [migration/0]\nroot          20  0.0  0.0      0     0 ?        S    15:35   0:00 [idle_inject/0]\nroot          21  0.0  0.0      0     0 ?        S    15:35   0:00 [cpuhp/0]\nroot          22  0.0  0.0      0     0 ?        S    15:35   0:00 [kdevtmpfs]\nroot          23  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-inet_frag_wq]\nroot          24  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_kthread]\nroot          25  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_rude_kthread]\nroot          26  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_trace_kthread]\nroot          27  0.0  0.0      0     0 ?        S    15:35   0:00 [kauditd]\nroot          28  0.0  0.0      0     0 ?        S    15:35   0:00 [khungtaskd]\nroot          29  0.0  0.0      0     0 ?        S    15:35   0:00 [oom_reaper]\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "Let me understand the situation:\n\n1. Port 8080 is being listened to by a Python process (pid 552) - the proxy\n2. Port 8082 is being listened to by a Python process (pid 553) - the replica\n3. Port 8081 is NOT listening - the old primary has failed\n4. Files exist:\n   - `/var/lib/failover/primary.failed` (empty)\n   - `/var/lib/failover/records.sqlite3` (12KB)\n   - `/var/lib/failover/replica.role` (8 bytes, probably \"replica\\n\")\n   - `/var/lib/failover/upstream` (5 bytes, probably \"8081\\n\")\n5. Need to create `/var/lib/failover/primary.fenced`\n6. Need to flip `replica.role` to `primary`\n7. Need to flip `upstream` to `8082`\n\nLet me check the file contents first to understand exact bytes, and also look at how the current processes are running.",
          "details": [
            {
              "format": "unknown",
              "index": 0,
              "text": "Let me understand the situation:\n\n1. Port 8080 is being listened to by a Python process (pid 552) - the proxy\n2. Port 8082 is being listened to by a Python process (pid 553) - the replica\n3. Port 8081 is NOT listening - the old primary has failed\n4. Files exist:\n   - `/var/lib/failover/primary.failed` (empty)\n   - `/var/lib/failover/records.sqlite3` (12KB)\n   - `/var/lib/failover/replica.role` (8 bytes, probably \"replica\\n\")\n   - `/var/lib/failover/upstream` (5 bytes, probably \"8081\\n\")\n5. Need to create `/var/lib/failover/primary.fenced`\n6. Need to flip `replica.role` to `primary`\n7. Need to flip `upstream` to `8082`\n\nLet me check the file contents first to understand exact bytes, and also look at how the current processes are running.",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "text",
          "text": "I have enough to act. Let me check exact file contents and understand the running processes."
        },
        {
          "type": "tool_use",
          "id": "call_XIfEjQOa33Q00zNvHt3hZXbv",
          "name": "Bash",
          "input": {
            "command": "echo \"=== replica.role ===\"; xxd /var/lib/failover/replica.role; echo \"=== upstream ===\"; xxd /var/lib/failover/upstream; echo \"=== primary.failed ===\"; xxd /var/lib/failover/primary.failed; echo \"=== records.sqlite3 schema ===\"; sqlite3 /var/lib/failover/records.sqlite3 \".schema\" 2>&1; echo \"=== records count ===\"; sqlite3 /var/lib/failover/records.sqlite3 \"SELECT count(*) FROM records;\" 2>&1",
            "description": "Inspect file contents and schema"
          }
        },
        {
          "type": "tool_use",
          "id": "call_WN8NyFKtvRcP4rJsOlBXVGm6",
          "name": "Bash",
          "input": {
            "command": "ps -o pid,user,cmd -p 552,553 2>&1; echo \"---\"; ls /proc/552/ 2>&1 | head -5; echo \"---\"; cat /proc/553/cmdline 2>&1; echo; cat /proc/552/cmdline 2>&1; echo",
            "description": "Inspect proxy and replica processes"
          }
        },
        {
          "type": "tool_use",
          "id": "call_9ZV7aFpvTMbFVMpJQ0REoojh",
          "name": "Bash",
          "input": {
            "command": "curl -sv http://127.0.0.1:8080/health 2>&1 | head -20; echo \"===\"; curl -sv http://127.0.0.1:8082/health 2>&1 | head -20; echo \"===\"; curl -sv http://127.0.0.1:8082/role 2>&1 | head -20",
            "description": "Test current endpoints"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_XIfEjQOa33Q00zNvHt3hZXbv",
          "content": "=== replica.role ===\n00000000: 7265 706c 6963 610a                      replica.\n=== upstream ===\n00000000: 3830 3831 0a                             8081.\n=== primary.failed ===\n=== records.sqlite3 schema ===\nCREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL);\n=== records count ===\n3\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_WN8NyFKtvRcP4rJsOlBXVGm6",
          "content": "[binary stdout suppressed: 636 bytes]"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_9ZV7aFpvTMbFVMpJQ0REoojh",
          "content": "*   Trying 127.0.0.1:8080...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8080) from 127.0.0.1 port 42760 \n* using HTTP/1.x\n> GET /health HTTP/1.1\r\n> Host: 127.0.0.1:8080\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 502 Bad Gateway\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 0\r\n< \r\n* shutting down connection #0\n===\n*   Trying 127.0.0.1:8082...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8082) from 127.0.0.1 port 60904 \n* using HTTP/1.x\n> GET /health HTTP/1.1\r\n> Host: 127.0.0.1:8082\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 200 OK\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 5\r\n< \r\n{ [5 bytes data]\n* shutting down connection #0\nready===\n*   Trying 127.0.0.1:8082...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8082) from 127.0.0.1 port 60906 \n* using HTTP/1.x\n> GET /role HTTP/1.1\r\n> Host: 127.0.0.1:8082\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 200 OK\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 7\r\n< \r\n{ [7 bytes data]\n* shutting down connection #0\nreplica"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "Now I have a complete picture:\n\n- Port 8080 (proxy) is running, returns 502 because upstream=8081 (old dead primary)\n- Port 8081 (old primary) is NOT listening — confirmed\n- Port 8082 (replica) is running and healthy\n- replica.role = \"replica\\n\"\n- upstream = \"8081\\n\"\n- primary.failed = empty (preserved, must keep)\n- records.sqlite3 has 3 records in `records(id TEXT, value TEXT)`\n- Need to create primary.fenced (must exist)\n- The replica reads its role from /var/lib/failover/replica.role on every request — so writing \"primary\" to it will make the replica accept writes\n- The proxy reads its upstream port from /var/lib/failover/upstream on every request — so writing \"8082\" to it will switch the proxy\n\nCritical safety considerations:\n1. Fence the old primary BEFORE writes — set primary.fenced FIRST\n2. Make sure port 8081 never comes back. The contract says \"do not make port 8081 listen again\". I should ensure no process is bound there. Since no service owns 8081 currently, that's already true. But to be safe across restarts, I should also make sure no script relaunches something on 8081.\n3. Survive restart/reboot. The state lives in /var/lib/failover files. I need to ensure the processes come back automatically on reboot — i.e., systemd units or some auto-restart mechanism.\n4. Preserve original records.sqlite3 — don't replace it.\n\nFor durability across reboot:\n- The two services are python processes. Without systemd units for them, they won't restart automatically.\n- I should create systemd units to ensure restart-on-boot.\n\nPlan:\n1. Create /var/lib/failover/primary.fenced (fence the old primary) — atomic, durable\n2. Update /var/lib/failover/replica.role to \"primary\" (atomic write)\n3. Update /var/lib/failover/upstream to \"8082\" (atomic write)\n4. Create systemd units to ensure persistence across reboot\n5. Verify: curl /health, /role, PUT/GET /records\n\nLet me think about the order. The contract says: \"The old primary must remain failed and must be durably fenced before writes are restored.\" So:\n1. Create primary.fenced first\n2. Then change replica.role to primary (which enables writes)\n3. Then change upstream to 8082 (which makes the public service route to the now-primary)\n\nAtomic writes: write to temp file, fsync, rename. This ensures durability.\n\nFor durability across reboot, I need to:\n- Make the two python processes auto-start\n- Set the role file state correctly so that on reboot the system comes back as primary\n\nLet me check if there are existing systemd services for these processes.",
          "details": [
            {
              "format": "unknown",
              "index": 0,
              "text": "Now I have a complete picture:\n\n- Port 8080 (proxy) is running, returns 502 because upstream=8081 (old dead primary)\n- Port 8081 (old primary) is NOT listening — confirmed\n- Port 8082 (replica) is running and healthy\n- replica.role = \"replica\\n\"\n- upstream = \"8081\\n\"\n- primary.failed = empty (preserved, must keep)\n- records.sqlite3 has 3 records in `records(id TEXT, value TEXT)`\n- Need to create primary.fenced (must exist)\n- The replica reads its role from /var/lib/failover/replica.role on every request — so writing \"primary\" to it will make the replica accept writes\n- The proxy reads its upstream port from /var/lib/failover/upstream on every request — so writing \"8082\" to it will switch the proxy\n\nCritical safety considerations:\n1. Fence the old primary BEFORE writes — set primary.fenced FIRST\n2. Make sure port 8081 never comes back. The contract says \"do not make port 8081 listen again\". I should ensure no process is bound there. Since no service owns 8081 currently, that's already true. But to be safe across restarts, I should also make sure no script relaunches something on 8081.\n3. Survive restart/reboot. The state lives in /var/lib/failover files. I need to ensure the processes come back automatically on reboot — i.e., systemd units or some auto-restart mechanism.\n4. Preserve original records.sqlite3 — don't replace it.\n\nFor durability across reboot:\n- The two services are python processes. Without systemd units for them, they won't restart automatically.\n- I should create systemd units to ensure restart-on-boot.\n\nPlan:\n1. Create /var/lib/failover/primary.fenced (fence the old primary) — atomic, durable\n2. Update /var/lib/failover/replica.role to \"primary\" (atomic write)\n3. Update /var/lib/failover/upstream to \"8082\" (atomic write)\n4. Create systemd units to ensure persistence across reboot\n5. Verify: curl /health, /role, PUT/GET /records\n\nLet me think about the order. The contract says: \"The old primary must remain failed and must be durably fenced before writes are restored.\" So:\n1. Create primary.fenced first\n2. Then change replica.role to primary (which enables writes)\n3. Then change upstream to 8082 (which makes the public service route to the now-primary)\n\nAtomic writes: write to temp file, fsync, rename. This ensures durability.\n\nFor durability across reboot, I need to:\n- Make the two python processes auto-start\n- Set the role file state correctly so that on reboot the system comes back as primary\n\nLet me check if there are existing systemd services for these processes.",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_iglEcctWLf7PDuKAldnl6T3F",
          "name": "Bash",
          "input": {
            "command": "systemctl list-units --type=service 2>&1 | grep -iE \"failover|replica|primary|proxy|record\" ; echo \"---\"; ls /etc/systemd/system/ 2>&1; echo \"---\"; ls /run/systemd/system/ 2>&1; echo \"---\"; cat /proc/552/cwd 2>&1; ls -l /proc/552/cwd 2>&1; ls -l /proc/553/cwd 2>&1",
            "description": "Find systemd units and process dirs"
          }
        },
        {
          "type": "tool_use",
          "id": "call_iVTw1rBARTdtIL7SajK1ryX2",
          "name": "Bash",
          "input": {
            "command": "cat /proc/552/cmdline | tr '\\0' ' '; echo; cat /proc/553/cmdline | tr '\\0' ' '; echo; echo \"---\"; ls -l /proc/552/fd/ 2>&1; echo \"---\"; ls -l /proc/553/fd/ 2>&1",
            "description": "Get cmdlines and fds"
          }
        },
        {
          "type": "tool_use",
          "id": "call_maDzPtnfaBYJw9bUg9eSRDwj",
          "name": "Bash",
          "input": {
            "command": "find / -maxdepth 6 -name \"*.py\" -newer /var/lib/failover/records.sqlite3 2>/dev/null | head; echo \"---\"; find / -maxdepth 6 \\( -name \"replica*.py\" -o -name \"proxy*.py\" -o -name \"primary*.py\" \\) 2>/dev/null | head",
            "description": "Find service source files"
          }
        }
      ]
    }
  ],
  "tool_trace": [
    {
      "id": "call_FNDYhlJBdTTvRL1QQ0pYhCSb",
      "name": "Bash",
      "input": {
        "command": "ls -la /var/lib/failover/ 2>&1; echo \"---\"; ls -la / 2>&1 | head -30",
        "description": "Inspect failover directory and root"
      },
      "output": "total 28\ndrwxr-xr-x 2 root root  4096 Sep 10 15:36 .\ndrwxr-xr-x 9 root root  4096 Sep 10 15:36 ..\n-rw-r--r-- 1 root root     0 Sep 10 15:36 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 10 15:36 records.sqlite3\n-rw-r--r-- 1 root root     8 Sep 10 15:36 replica.role\n-rw-r--r-- 1 root root     5 Sep 10 15:36 upstream\n---\ntotal 64\ndrwxr-xr-x  17 root root  4096 Sep 10 15:36 .\ndrwxr-xr-x  17 root root  4096 Sep 10 15:36 ..\ndrwxr-xr-x   2 root root  4096 Sep 10 15:35 bin\ndrwxr-xr-x  17 root root  3260 Sep 10 15:36 dev\ndrwxr-xr-x  21 root root  4096 Sep 10 15:36 etc\ndrwxr-xr-x   2 root root  4096 Sep 10 15:35 home\ndrwxr-xr-x   2 root root  4096 Sep 10 15:36 lib64\ndrwx------   2 root root 16384 Sep 10 15:35 lost+found\ndrwxr-xr-x   6 root root  4096 Sep 10 15:36 nix\ndr-xr-xr-x 106 root root     0 Sep 10 15:35 proc\ndrwx------   6 root root  4096 Sep 10 15:36 root\ndrwxr-xr-x  19 root root   500 Sep 10 15:36 run\ndrwxr-xr-x   2 root root  4096 Sep 10 15:36 srv\ndr-xr-xr-x  13 root root     0 Sep 10 15:35 sys\ndrwxrwxrwt  11 root root  4096 Sep 10 15:36 tmp\ndrwxr-xr-x   3 root root  4096 Sep 10 15:36 usr\ndrwxr-xr-x   9 root root  4096 Sep 10 15:36 var\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 2707,
      "duration_ms": 40
    },
    {
      "id": "call_c3MzZl6oQuEVCsuQo8HjB9BW",
      "name": "Bash",
      "input": {
        "command": "ss -tlnp 2>&1; echo \"---\"; ps aux 2>&1 | head -30",
        "description": "Check listening ports and processes"
      },
      "output": "State  Recv-Q Send-Q Local Address:Port  Peer Address:PortProcess\nLISTEN 0      128        127.0.0.1:18004      0.0.0.0:*    users:((\"sshd-session\",pid=630,fd=10))\nLISTEN 0      5            0.0.0.0:8080       0.0.0.0:*    users:((\"python\",pid=552,fd=3))\nLISTEN 0      4096   127.0.0.53%lo:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=23))\nLISTEN 0      4096         0.0.0.0:5355       0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=14))\nLISTEN 0      4096      127.0.0.54:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=300,fd=25))\nLISTEN 0      128          0.0.0.0:22         0.0.0.0:*    users:((\"sshd\",pid=569,fd=6))\nLISTEN 0      5          127.0.0.1:8082       0.0.0.0:*    users:((\"python\",pid=553,fd=3))\nLISTEN 0      4096            [::]:5355          [::]:*    users:((\"systemd-resolve\",pid=300,fd=16))\nLISTEN 0      128             [::]:22            [::]:*    users:((\"sshd\",pid=569,fd=7))\n---\nUSER         PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND\nroot           1  6.3  1.5  18620 11608 ?        Ss   15:35   0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=46\nroot           2  0.0  0.0      0     0 ?        S    15:35   0:00 [kthreadd]\nroot           3  0.0  0.0      0     0 ?        S    15:35   0:00 [pool_workqueue_release]\nroot           4  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-rcu_gp]\nroot           5  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-sync_wq]\nroot           6  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-kvfree_rcu_reclaim]\nroot           7  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-slub_flushwq]\nroot           8  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-netns]\nroot           9  0.0  0.0      0     0 ?        I    15:35   0:00 [kworker/0:0-cgroup_free]\nroot          10  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/0:0H-kblockd]\nroot          11  0.0  0.0      0     0 ?        I    15:35   0:00 [kworker/0:1-cgroup_free]\nroot          12  0.1  0.0      0     0 ?        I    15:35   0:00 [kworker/u4:0-events_unbound]\nroot          13  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-mm_percpu_wq]\nroot          14  1.1  0.0      0     0 ?        I    15:35   0:00 [kworker/u4:1-events_unbound]\nroot          15  0.0  0.0      0     0 ?        S    15:35   0:00 [ksoftirqd/0]\nroot          16  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_preempt]\nroot          17  0.0  0.0      0     0 ?        S    15:35   0:00 [rcu_exp_par_gp_kthread_worker/0]\nroot          18  0.0  0.0      0     0 ?        S    15:35   0:00 [rcu_exp_gp_kthread_worker]\nroot          19  0.0  0.0      0     0 ?        S    15:35   0:00 [migration/0]\nroot          20  0.0  0.0      0     0 ?        S    15:35   0:00 [idle_inject/0]\nroot          21  0.0  0.0      0     0 ?        S    15:35   0:00 [cpuhp/0]\nroot          22  0.0  0.0      0     0 ?        S    15:35   0:00 [kdevtmpfs]\nroot          23  0.0  0.0      0     0 ?        I<   15:35   0:00 [kworker/R-inet_frag_wq]\nroot          24  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_kthread]\nroot          25  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_rude_kthread]\nroot          26  0.0  0.0      0     0 ?        I    15:35   0:00 [rcu_tasks_trace_kthread]\nroot          27  0.0  0.0      0     0 ?        S    15:35   0:00 [kauditd]\nroot          28  0.0  0.0      0     0 ?        S    15:35   0:00 [khungtaskd]\nroot          29  0.0  0.0      0     0 ?        S    15:35   0:00 [oom_reaper]\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 2747,
      "duration_ms": 46
    },
    {
      "id": "call_XIfEjQOa33Q00zNvHt3hZXbv",
      "name": "Bash",
      "input": {
        "command": "echo \"=== replica.role ===\"; xxd /var/lib/failover/replica.role; echo \"=== upstream ===\"; xxd /var/lib/failover/upstream; echo \"=== primary.failed ===\"; xxd /var/lib/failover/primary.failed; echo \"=== records.sqlite3 schema ===\"; sqlite3 /var/lib/failover/records.sqlite3 \".schema\" 2>&1; echo \"=== records count ===\"; sqlite3 /var/lib/failover/records.sqlite3 \"SELECT count(*) FROM records;\" 2>&1",
        "description": "Inspect file contents and schema"
      },
      "output": "=== replica.role ===\n00000000: 7265 706c 6963 610a                      replica.\n=== upstream ===\n00000000: 3830 3831 0a                             8081.\n=== primary.failed ===\n=== records.sqlite3 schema ===\nCREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL);\n=== records count ===\n3\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 7271,
      "duration_ms": 68
    },
    {
      "id": "call_WN8NyFKtvRcP4rJsOlBXVGm6",
      "name": "Bash",
      "input": {
        "command": "ps -o pid,user,cmd -p 552,553 2>&1; echo \"---\"; ls /proc/552/ 2>&1 | head -5; echo \"---\"; cat /proc/553/cmdline 2>&1; echo; cat /proc/552/cmdline 2>&1; echo",
        "description": "Inspect proxy and replica processes"
      },
      "output": "[binary stdout suppressed: 636 bytes]",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 7340,
      "duration_ms": 35
    },
    {
      "id": "call_9ZV7aFpvTMbFVMpJQ0REoojh",
      "name": "Bash",
      "input": {
        "command": "curl -sv http://127.0.0.1:8080/health 2>&1 | head -20; echo \"===\"; curl -sv http://127.0.0.1:8082/health 2>&1 | head -20; echo \"===\"; curl -sv http://127.0.0.1:8082/role 2>&1 | head -20",
        "description": "Test current endpoints"
      },
      "output": "*   Trying 127.0.0.1:8080...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8080) from 127.0.0.1 port 42760 \n* using HTTP/1.x\n> GET /health HTTP/1.1\r\n> Host: 127.0.0.1:8080\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 502 Bad Gateway\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 0\r\n< \r\n* shutting down connection #0\n===\n*   Trying 127.0.0.1:8082...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8082) from 127.0.0.1 port 60904 \n* using HTTP/1.x\n> GET /health HTTP/1.1\r\n> Host: 127.0.0.1:8082\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 200 OK\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 5\r\n< \r\n{ [5 bytes data]\n* shutting down connection #0\nready===\n*   Trying 127.0.0.1:8082...\n* Established connection to 127.0.0.1 (127.0.0.1 port 8082) from 127.0.0.1 port 60906 \n* using HTTP/1.x\n> GET /role HTTP/1.1\r\n> Host: 127.0.0.1:8082\r\n> User-Agent: curl/8.21.0\r\n> Accept: */*\r\n> \r\n* Request completely sent off\n* HTTP 1.0, assume close after body\n< HTTP/1.0 200 OK\r\n< Server: BaseHTTP/0.6 Python/3.14.7\r\n< Date: Thu, 10 Sep 2026 15:36:20 GMT\r\n< Content-Length: 7\r\n< \r\n{ [7 bytes data]\n* shutting down connection #0\nreplica",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 7375,
      "duration_ms": 125
    }
  ],
  "timing": {
    "total_duration_ms": 14232,
    "model_rounds": [
      {
        "index": 1,
        "started_after_ms": 0,
        "duration_ms": 2706,
        "status": "completed",
        "usage": {
          "input_tokens": 3335,
          "output_tokens": 263,
          "cache_read_tokens": 109,
          "cache_creation_tokens": 0,
          "cost_usd": 0.00132264
        }
      },
      {
        "index": 2,
        "started_after_ms": 2865,
        "duration_ms": 4405,
        "status": "completed",
        "usage": {
          "input_tokens": 2327,
          "output_tokens": 611,
          "cache_read_tokens": 3443,
          "cache_creation_tokens": 0,
          "cost_usd": 0.00163788
        }
      },
      {
        "index": 3,
        "started_after_ms": 7505,
        "duration_ms": 6726,
        "status": "completed",
        "usage": {
          "input_tokens": 1080,
          "output_tokens": 970,
          "cache_read_tokens": 5769,
          "cache_creation_tokens": 0,
          "cost_usd": 0.00183414
        }
      }
    ]
  }
}