{
  "schema_version": 2,
  "model": "anthropic/claude-sonnet-5",
  "outcome": {
    "status": "running"
  },
  "usage": {
    "input_tokens": 134210,
    "output_tokens": 3999,
    "cache_read_tokens": 0,
    "cache_creation_tokens": 0,
    "cost_usd": 0.30841
  },
  "messages": [
    {
      "role": "user",
      "content": "Roll the live stateful service from v1 to v2 using the contract appended below. Preserve every request and existing record during cutover. Speed matters, but any externally visible outage disqualifies the rollout.\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# Zero-downtime rollout contract\n\nA stateful v1 record service is live on the public endpoint at port 8080. It is\nserved by `rollout-v1.service` on port 8081 through the stable\n`rollout-proxy.service`. Existing records in\n`/var/lib/rollout/records.sqlite3` are customer state and must be preserved.\n\nDeploy v2 using the dormant `rollout-v2.service` slot. It runs\n`/opt/rollout/v2.py` and must listen on `127.0.0.1:8082`. v2 implements:\n\n- `GET /health`: `200` with the exact body `ready`;\n- `GET /version`: `200` with the exact body `v2`;\n- `PUT /records/<id>`: store the UTF-8 request body and return `204`;\n- `GET /records/<id>`: return the exact stored body, or `404` when absent.\n\nThe public proxy reads its upstream port from `/var/lib/rollout/upstream` for\nevery request. It initially contains `8081`. Switch it atomically to `8082`\nonly after v2 is ready. The public endpoint is monitored throughout the rollout.\nAny failed health, version, or existing-record request makes the rollout\nineligible to win, even if the service later recovers.\n\nDo not stop or restart `rollout-proxy.service` or `rollout-v1.service` during\ncutover. After switching traffic, leave v2 and the proxy enabled and healthy.\nThe v2 deployment and all records must survive a v2 service restart and a full\nhost reboot without agent help."
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "",
              "text": "",
              "type": "reasoning.text"
            },
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "EtQCCqgBCBEYAipAUVfwe567uNQJhEk5H8jXh9oi3Zp+1tYXw4iy32yn0/pD5UjSuAoSe5vSknRpRWs40B/7N0tltKgCkZor1WGmUzIPY2xhdWRlLXNvbm5ldC01OABCCHRoaW5raW5nWiQzYjkzYTVkZC03MzAyLTQ4M2YtYWVhZS0zNjIwNzU1NDhhZTFyEFT4+u/xuq7l78TkXbypureIAQGoAfe9m9UGsAECEgzHljJ6/pJYXmFNQJgaDErRs267h8pNnCR0EiIw4b931oLvq6JsceFUuV3PyEmHR003yJBSTbUFcCGlSFy6U7+Oww9o3w7RNdjdQE7MKllyDsH1aWNU5mSIP082crJYVMt4vHRxWWd8GZGhW/eHgdlMV4kxNHKN8Fjf3lbPAVRQKDZmzaEdnkMO792XXSu7aY8z8ytVy0dsz2931U3kJQ7ObIzmTKia6xgB",
              "text": "",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "toolu_01E7tTE7NLhvwPP5zVYwcrM8",
          "name": "Bash",
          "input": {
            "command": "systemctl status rollout-v1.service rollout-proxy.service rollout-v2.service --no-pager 2>&1 | head -100"
          }
        },
        {
          "type": "tool_use",
          "id": "toolu_01NDeaRB3timYkckGsZ8J59f",
          "name": "Bash",
          "input": {
            "command": "cat /var/lib/rollout/upstream; echo; ls -la /var/lib/rollout/; echo '---'; ls -la /opt/rollout/ 2>&1"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01E7tTE7NLhvwPP5zVYwcrM8",
          "content": "● rollout-v1.service - Existing rollout v1 service\n     Loaded: loaded (/etc/systemd/system/rollout-v1.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:35:41 UTC; 9s ago\n Invocation: 51b12c3e53724217ae0fd4de50beb345\n   Main PID: 542 (python)\n         IP: 101.1K in, 97.3K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 16.5M (peak: 16.8M)\n        CPU: 315ms\n     CGroup: /system.slice/rollout-v1.service\n             └─542 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py\n\nSep 13 17:35:41 rollout-two systemd[1]: Started Existing rollout v1 service.\n\n● rollout-proxy.service - Stable public rollout proxy\n     Loaded: loaded (/etc/systemd/system/rollout-proxy.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:35:41 UTC; 9s ago\n Invocation: 8e2e63343ee64246921b43bc8972bdf9\n   Main PID: 543 (python)\n         IP: 166.8K in, 167K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 16.6M (peak: 16.9M)\n        CPU: 399ms\n     CGroup: /system.slice/rollout-proxy.service\n             └─543 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py\n\nSep 13 17:35:41 rollout-two systemd[1]: Started Stable public rollout proxy.\n\n× rollout-v2.service - Agent-built rollout v2 slot\n     Loaded: loaded (/etc/systemd/system/rollout-v2.service; enabled; preset: ignored)\n     Active: failed (Result: start-limit-hit) since Sun 2026-09-13 17:35:48 UTC; 3s ago\n   Duration: 74ms\n Invocation: 6b92080b055944dd9217273f01e35f88\n    Process: 733 ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /opt/rollout/v2.py (code=exited, status=2)\n   Main PID: 733 (code=exited, status=2)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n   Mem peak: 4.1M\n        CPU: 37ms\n\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Scheduled restart job, restart counter is at 5.\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Start request repeated too quickly.\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Failed with result 'start-limit-hit'.\nSep 13 17:35:48 rollout-two systemd[1]: Failed to start Agent-built rollout v2 slot.\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01NDeaRB3timYkckGsZ8J59f",
          "content": "8081\n\ntotal 24\ndrwxr-xr-x 2 root root  4096 Sep 13 17:35 .\ndrwxr-xr-x 9 root root  4096 Sep 13 17:35 ..\n-rw-r--r-- 1 root root 12288 Sep 13 17:35 records.sqlite3\n-rw-r--r-- 1 root root     5 Sep 13 17:35 upstream\n---\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:35 .\ndrwxr-xr-x 3 root root 4096 Sep 13 17:35 ..\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "",
              "text": "",
              "type": "reasoning.text"
            },
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "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",
              "text": "",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "toolu_01NWd7uzFvjxkMGp4Mnw3qFD",
          "name": "Bash",
          "input": {
            "command": "cat /nix/store/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py"
          }
        },
        {
          "type": "tool_use",
          "id": "toolu_01AXkyRw5RTGHMctH5rubaqF",
          "name": "Bash",
          "input": {
            "command": "cat /nix/store/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py"
          }
        },
        {
          "type": "tool_use",
          "id": "toolu_01FcURatRMDVSCvCwGXsCtRY",
          "name": "Bash",
          "input": {
            "command": "sqlite3 /var/lib/rollout/records.sqlite3 \".schema\" 2>&1; echo '---'; sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT * FROM sqlite_master;\" 2>&1; echo '---data---'; sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT count(*) FROM records;\" 2>&1"
          }
        },
        {
          "type": "tool_use",
          "id": "toolu_01DmiiBijMEJCYCok6qqyfEi",
          "name": "Bash",
          "input": {
            "command": "cat /etc/systemd/system/rollout-v2.service"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01NWd7uzFvjxkMGp4Mnw3qFD",
          "content": "import sqlite3\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nDB = \"/var/lib/rollout/records.sqlite3\"\n\ndef database():\n    connection = sqlite3.connect(DB, timeout=10)\n    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n    return connection\n\nclass Handler(BaseHTTPRequestHandler):\n    def send(self, status, body=b\"\"):\n        self.send_response(status)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        self.wfile.write(body)\n\n    def do_GET(self):\n        if self.path == \"/health\":\n            self.send(200, b\"ready\")\n            return\n        if self.path == \"/version\":\n            self.send(200, b\"v1\")\n            return\n        if self.path.startswith(\"/records/\"):\n            connection = database()\n            row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone()\n            connection.close()\n            if row is None:\n                self.send(404)\n            else:\n                self.send(200, row[0].encode())\n            return\n        self.send(404)\n\n    def do_PUT(self):\n        if not self.path.startswith(\"/records/\"):\n            self.send(404)\n            return\n        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode()\n        connection = database()\n        connection.execute(\n            \"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\",\n            (self.path[9:], value),\n        )\n        connection.commit()\n        connection.close()\n        self.send(204)\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"127.0.0.1\", 8081), Handler).serve_forever()\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01AXkyRw5RTGHMctH5rubaqF",
          "content": "import http.client\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nUPSTREAM = \"/var/lib/rollout/upstream\"\n\nclass Handler(BaseHTTPRequestHandler):\n    def forward(self):\n        try:\n            with open(UPSTREAM) as source:\n                port = int(source.read().strip())\n            body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n            connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n            connection.request(self.command, self.path, body=body)\n            response = connection.getresponse()\n            response_body = response.read()\n            self.send_response(response.status)\n            self.send_header(\"Content-Length\", str(len(response_body)))\n            self.end_headers()\n            self.wfile.write(response_body)\n            connection.close()\n        except Exception:\n            self.send_response(502)\n            self.send_header(\"Content-Length\", \"0\")\n            self.end_headers()\n\n    do_GET = forward\n    do_PUT = forward\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01FcURatRMDVSCvCwGXsCtRY",
          "content": "CREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL);\n---\ntable|records|records|2|CREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\nindex|sqlite_autoindex_records_1|records|3|\n---data---\n2\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01DmiiBijMEJCYCok6qqyfEi",
          "content": "[Unit]\nAfter=rollout-seed.service\nDescription=Agent-built rollout v2 slot\nRequires=rollout-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 /opt/rollout/v2.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "Good, contract details confirmed. v1 uses the same SQLite DB directly, so v2 must use the same DB for persistence and shared visibility. Let's check existing record IDs to test against later, and check the seed service."
        },
        {
          "type": "tool_use",
          "id": "toolu_01M7f5Z1bHXGaC3xQzy8kP65",
          "name": "Bash",
          "input": {
            "command": "sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT id, value FROM records;\"; echo '---'; cat /etc/systemd/system/rollout-seed.service 2>&1; echo '---'; systemctl cat rollout-v1.service rollout-proxy.service 2>&1 | head -60"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01M7f5Z1bHXGaC3xQzy8kP65",
          "content": "customer-alpha-73c|alpha-original\ncustomer-beta-a19|beta-original\n---\n[Unit]\nBefore=rollout-v1.service rollout-v2.service rollout-proxy.service\nDescription=Seed live v1 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/44ql83wxi6z28pk20x4179khgs5i5anf-unit-script-rollout-seed-start/bin/rollout-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n---\n# /etc/systemd/system/rollout-v1.service -> /nix/store/rcrgmhnjq004n1y7kzpbn6mp5mxfqblh-unit-rollout-v1.service/rollout-v1.service\n[Unit]\nAfter=rollout-seed.service\nDescription=Existing rollout v1 service\nRequires=rollout-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/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/rollout-proxy.service -> /nix/store/zs0l8ds3rl62nabiwjfgz8bykpp6z6kn-unit-rollout-proxy.service/rollout-proxy.service\n[Unit]\nAfter=rollout-seed.service rollout-v1.service\nDescription=Stable public rollout proxy\nRequires=rollout-seed.service rollout-v1.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/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "",
              "text": "",
              "type": "reasoning.text"
            },
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "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",
              "text": "",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "toolu_01XtQ5Ry7P34kadGhrvuMibc",
          "name": "Write",
          "input": {
            "content": "import sqlite3\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nDB = \"/var/lib/rollout/records.sqlite3\"\n\ndef database():\n    connection = sqlite3.connect(DB, timeout=10)\n    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n    return connection\n\nclass Handler(BaseHTTPRequestHandler):\n    def send(self, status, body=b\"\"):\n        self.send_response(status)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        self.wfile.write(body)\n\n    def do_GET(self):\n        if self.path == \"/health\":\n            self.send(200, b\"ready\")\n            return\n        if self.path == \"/version\":\n            self.send(200, b\"v2\")\n            return\n        if self.path.startswith(\"/records/\"):\n            connection = database()\n            row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone()\n            connection.close()\n            if row is None:\n                self.send(404)\n            else:\n                self.send(200, row[0].encode())\n            return\n        self.send(404)\n\n    def do_PUT(self):\n        if not self.path.startswith(\"/records/\"):\n            self.send(404)\n            return\n        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode()\n        connection = database()\n        connection.execute(\n            \"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\",\n            (self.path[9:], value),\n        )\n        connection.commit()\n        connection.close()\n        self.send(204)\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n",
            "file_path": "/opt/rollout/v2.py"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01XtQ5Ry7P34kadGhrvuMibc",
          "content": "Successfully wrote to /opt/rollout/v2.py"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "Now start v2 (it's start-limit-hit, need to reset failed state first) and verify it before switching."
        },
        {
          "type": "tool_use",
          "id": "toolu_01GWj6CZqRPox7RdakWaVQL2",
          "name": "Bash",
          "input": {
            "command": "systemctl reset-failed rollout-v2.service; systemctl restart rollout-v2.service; sleep 1; systemctl status rollout-v2.service --no-pager"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01GWj6CZqRPox7RdakWaVQL2",
          "content": "● rollout-v2.service - Agent-built rollout v2 slot\n     Loaded: loaded (/etc/systemd/system/rollout-v2.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:36:11 UTC; 1s ago\n Invocation: bdb8277777b94fcea4ea83f84bfa535b\n   Main PID: 3080 (python)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 9.6M (peak: 9.8M)\n        CPU: 120ms\n     CGroup: /system.slice/rollout-v2.service\n             └─3080 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /opt/rollout/v2.py\n\nSep 13 17:36:11 rollout-two systemd[1]: Started Agent-built rollout v2 slot.\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "v2 is running. Let's verify health/version/records directly on 8082, and confirm existing records are visible (shared DB)."
        },
        {
          "type": "tool_use",
          "id": "toolu_01WQv64VaaeuR6Sy5YHjywLc",
          "name": "Bash",
          "input": {
            "command": "curl -s -o /dev/null -w \"health:%{http_code}\\n\" http://127.0.0.1:8082/health\ncurl -s http://127.0.0.1:8082/health; echo\ncurl -s -o /dev/null -w \"version:%{http_code}\\n\" http://127.0.0.1:8082/version\ncurl -s http://127.0.0.1:8082/version; echo\ncurl -s -o /dev/null -w \"get-alpha:%{http_code}\\n\" http://127.0.0.1:8082/records/customer-alpha-73c\ncurl -s http://127.0.0.1:8082/records/customer-alpha-73c; echo\ncurl -s -o /dev/null -w \"get-beta:%{http_code}\\n\" http://127.0.0.1:8082/records/customer-beta-a19\ncurl -s http://127.0.0.1:8082/records/customer-beta-a19; echo\ncurl -s -o /dev/null -w \"put-new:%{http_code}\\n\" -X PUT --data \"hello-v2\" http://127.0.0.1:8082/records/v2-smoke-test\ncurl -s http://127.0.0.1:8082/records/v2-smoke-test; echo\ncurl -s -o /dev/null -w \"get-missing:%{http_code}\\n\" http://127.0.0.1:8082/records/does-not-exist"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01WQv64VaaeuR6Sy5YHjywLc",
          "content": "health:200\nready\nversion:200\nv2\nget-alpha:200\nalpha-original\nget-beta:200\nbeta-original\nput-new:204\nhello-v2\nget-missing:404\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "",
              "text": "",
              "type": "reasoning.text"
            },
            {
              "format": "anthropic-claude-v1",
              "index": 0,
              "signature": "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",
              "text": "",
              "type": "reasoning.text"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "toolu_019AqA4fDeJVQ5U1nkQos8Tp",
          "name": "Bash",
          "input": {
            "command": "curl -s -o /dev/null -w \"public-health:%{http_code}\\n\" http://127.0.0.1:8080/health\ncurl -s http://127.0.0.1:8080/version; echo\ndf -T /var/lib/rollout | tail -1"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_019AqA4fDeJVQ5U1nkQos8Tp",
          "content": "public-health:200\nv1\n/dev/vda       ext4   1992552 35456   1835856   2% /\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "Same filesystem, so `mv` will be atomic. Let's run a quick monitor loop in the background while switching, to confirm no dropped requests."
        },
        {
          "type": "tool_use",
          "id": "toolu_01M1daPoafmZpF8psThwZvaz",
          "name": "Bash",
          "input": {
            "command": "cd /tmp\n(for i in $(seq 1 200); do\n  code=$(curl -s -o /dev/null -w \"%{http_code}\" --max-time 1 http://127.0.0.1:8080/health)\n  echo \"$code\"\n  sleep 0.02\ndone) > monitor.log 2>&1 &\necho \"monitor pid $!\"\nsleep 0.3\necho \"8082\" > /var/lib/rollout/upstream.tmp\nmv /var/lib/rollout/upstream.tmp /var/lib/rollout/upstream\ncat /var/lib/rollout/upstream\nwait\nsort monitor.log | uniq -c"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01M1daPoafmZpF8psThwZvaz",
          "content": "monitor pid 4423\n8082\n    200 200\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "No downtime — all 200s throughout the cutover. Let's verify the public endpoint now serves v2 and existing records, plus test a fuller set of checks and confirm services remain untouched (not restarted)."
        },
        {
          "type": "tool_use",
          "id": "toolu_019YnuQ5kX6z9ftLXusqtxQM",
          "name": "Bash",
          "input": {
            "command": "curl -s http://127.0.0.1:8080/version; echo\ncurl -s http://127.0.0.1:8080/health; echo\ncurl -s http://127.0.0.1:8080/records/customer-alpha-73c; echo\ncurl -s http://127.0.0.1:8080/records/customer-beta-a19; echo\ncurl -s -o /dev/null -w \"put:%{http_code}\\n\" -X PUT --data \"public-write-check\" http://127.0.0.1:8080/records/public-check\ncurl -s http://127.0.0.1:8080/records/public-check; echo\necho '--- service states ---'\nsystemctl show rollout-v1.service -p ActiveEnterTimestamp -p SubState\nsystemctl show rollout-proxy.service -p ActiveEnterTimestamp -p SubState\nsystemctl show rollout-v2.service -p ActiveEnterTimestamp -p SubState -p UnitFileState"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_019YnuQ5kX6z9ftLXusqtxQM",
          "content": "v2\nready\nalpha-original\nbeta-original\nput:204\npublic-write-check\n--- service states ---\nSubState=running\nActiveEnterTimestamp=Sun 2026-09-13 17:35:41 UTC\nSubState=running\nActiveEnterTimestamp=Sun 2026-09-13 17:35:41 UTC\nSubState=running\nUnitFileState=enabled\nActiveEnterTimestamp=Sun 2026-09-13 17:36:11 UTC\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "v1 and proxy timestamps unchanged (never restarted) — cutover was truly hot. Now verify durability: v2 restart and reboot survival."
        },
        {
          "type": "tool_use",
          "id": "toolu_01SBuqnu7dCjpMxpYiUuE6gD",
          "name": "Bash",
          "input": {
            "command": "systemctl restart rollout-v2.service\nsleep 1\ncurl -s -o /dev/null -w \"post-restart health:%{http_code}\\n\" http://127.0.0.1:8080/health\ncurl -s http://127.0.0.1:8080/records/public-check; echo\ncurl -s http://127.0.0.1:8080/records/customer-alpha-73c; echo\nsystemctl is-enabled rollout-v2.service rollout-proxy.service rollout-v1.service\ncat /var/lib/rollout/upstream"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "toolu_01SBuqnu7dCjpMxpYiUuE6gD",
          "content": "post-restart health:200\npublic-write-check\nalpha-original\nenabled\nenabled\nenabled\n8082\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "text",
          "text": "v2 restart preserved records and stayed healthy. Everything is enabled and the upstream file persists on disk, so a reboot will restore the same state (seed service won't re-seed since DB already exists — let's confirm)."
        },
        {
          "type": "tool_use",
          "id": "toolu_01Fm82ukuy3UZqMA4VA75jYa",
          "name": "Bash",
          "input": {
            "command": "cat $(readlink -f /nix/store/44ql83wxi6z28pk20x4179khgs5i5anf-unit-script-rollout-seed-start/bin/rollout-seed-start) 2>&1 || systemctl cat rollout-seed.service 2>&1\necho '---'\nfind /nix/store -iname '*rollout-seed*' 2>/dev/null"
          }
        }
      ]
    }
  ],
  "tool_trace": [
    {
      "id": "toolu_01E7tTE7NLhvwPP5zVYwcrM8",
      "name": "Bash",
      "input": {
        "command": "systemctl status rollout-v1.service rollout-proxy.service rollout-v2.service --no-pager 2>&1 | head -100"
      },
      "output": "● rollout-v1.service - Existing rollout v1 service\n     Loaded: loaded (/etc/systemd/system/rollout-v1.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:35:41 UTC; 9s ago\n Invocation: 51b12c3e53724217ae0fd4de50beb345\n   Main PID: 542 (python)\n         IP: 101.1K in, 97.3K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 16.5M (peak: 16.8M)\n        CPU: 315ms\n     CGroup: /system.slice/rollout-v1.service\n             └─542 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py\n\nSep 13 17:35:41 rollout-two systemd[1]: Started Existing rollout v1 service.\n\n● rollout-proxy.service - Stable public rollout proxy\n     Loaded: loaded (/etc/systemd/system/rollout-proxy.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:35:41 UTC; 9s ago\n Invocation: 8e2e63343ee64246921b43bc8972bdf9\n   Main PID: 543 (python)\n         IP: 166.8K in, 167K out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 16.6M (peak: 16.9M)\n        CPU: 399ms\n     CGroup: /system.slice/rollout-proxy.service\n             └─543 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py\n\nSep 13 17:35:41 rollout-two systemd[1]: Started Stable public rollout proxy.\n\n× rollout-v2.service - Agent-built rollout v2 slot\n     Loaded: loaded (/etc/systemd/system/rollout-v2.service; enabled; preset: ignored)\n     Active: failed (Result: start-limit-hit) since Sun 2026-09-13 17:35:48 UTC; 3s ago\n   Duration: 74ms\n Invocation: 6b92080b055944dd9217273f01e35f88\n    Process: 733 ExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /opt/rollout/v2.py (code=exited, status=2)\n   Main PID: 733 (code=exited, status=2)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n   Mem peak: 4.1M\n        CPU: 37ms\n\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Scheduled restart job, restart counter is at 5.\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Start request repeated too quickly.\nSep 13 17:35:48 rollout-two systemd[1]: rollout-v2.service: Failed with result 'start-limit-hit'.\nSep 13 17:35:48 rollout-two systemd[1]: Failed to start Agent-built rollout v2 slot.\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 2476,
      "duration_ms": 59
    },
    {
      "id": "toolu_01NDeaRB3timYkckGsZ8J59f",
      "name": "Bash",
      "input": {
        "command": "cat /var/lib/rollout/upstream; echo; ls -la /var/lib/rollout/; echo '---'; ls -la /opt/rollout/ 2>&1"
      },
      "output": "8081\n\ntotal 24\ndrwxr-xr-x 2 root root  4096 Sep 13 17:35 .\ndrwxr-xr-x 9 root root  4096 Sep 13 17:35 ..\n-rw-r--r-- 1 root root 12288 Sep 13 17:35 records.sqlite3\n-rw-r--r-- 1 root root     5 Sep 13 17:35 upstream\n---\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:35 .\ndrwxr-xr-x 3 root root 4096 Sep 13 17:35 ..\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 2535,
      "duration_ms": 47
    },
    {
      "id": "toolu_01NWd7uzFvjxkMGp4Mnw3qFD",
      "name": "Bash",
      "input": {
        "command": "cat /nix/store/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py"
      },
      "output": "import sqlite3\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nDB = \"/var/lib/rollout/records.sqlite3\"\n\ndef database():\n    connection = sqlite3.connect(DB, timeout=10)\n    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n    return connection\n\nclass Handler(BaseHTTPRequestHandler):\n    def send(self, status, body=b\"\"):\n        self.send_response(status)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        self.wfile.write(body)\n\n    def do_GET(self):\n        if self.path == \"/health\":\n            self.send(200, b\"ready\")\n            return\n        if self.path == \"/version\":\n            self.send(200, b\"v1\")\n            return\n        if self.path.startswith(\"/records/\"):\n            connection = database()\n            row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone()\n            connection.close()\n            if row is None:\n                self.send(404)\n            else:\n                self.send(200, row[0].encode())\n            return\n        self.send(404)\n\n    def do_PUT(self):\n        if not self.path.startswith(\"/records/\"):\n            self.send(404)\n            return\n        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode()\n        connection = database()\n        connection.execute(\n            \"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\",\n            (self.path[9:], value),\n        )\n        connection.commit()\n        connection.close()\n        self.send(204)\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"127.0.0.1\", 8081), Handler).serve_forever()\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 8284,
      "duration_ms": 27
    },
    {
      "id": "toolu_01AXkyRw5RTGHMctH5rubaqF",
      "name": "Bash",
      "input": {
        "command": "cat /nix/store/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py"
      },
      "output": "import http.client\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nUPSTREAM = \"/var/lib/rollout/upstream\"\n\nclass Handler(BaseHTTPRequestHandler):\n    def forward(self):\n        try:\n            with open(UPSTREAM) as source:\n                port = int(source.read().strip())\n            body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n            connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n            connection.request(self.command, self.path, body=body)\n            response = connection.getresponse()\n            response_body = response.read()\n            self.send_response(response.status)\n            self.send_header(\"Content-Length\", str(len(response_body)))\n            self.end_headers()\n            self.wfile.write(response_body)\n            connection.close()\n        except Exception:\n            self.send_response(502)\n            self.send_header(\"Content-Length\", \"0\")\n            self.end_headers()\n\n    do_GET = forward\n    do_PUT = forward\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 8312,
      "duration_ms": 24
    },
    {
      "id": "toolu_01FcURatRMDVSCvCwGXsCtRY",
      "name": "Bash",
      "input": {
        "command": "sqlite3 /var/lib/rollout/records.sqlite3 \".schema\" 2>&1; echo '---'; sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT * FROM sqlite_master;\" 2>&1; echo '---data---'; sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT count(*) FROM records;\" 2>&1"
      },
      "output": "CREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL);\n---\ntable|records|records|2|CREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\nindex|sqlite_autoindex_records_1|records|3|\n---data---\n2\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 8337,
      "duration_ms": 80
    },
    {
      "id": "toolu_01DmiiBijMEJCYCok6qqyfEi",
      "name": "Bash",
      "input": {
        "command": "cat /etc/systemd/system/rollout-v2.service"
      },
      "output": "[Unit]\nAfter=rollout-seed.service\nDescription=Agent-built rollout v2 slot\nRequires=rollout-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 /opt/rollout/v2.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 8418,
      "duration_ms": 25
    },
    {
      "id": "toolu_01M7f5Z1bHXGaC3xQzy8kP65",
      "name": "Bash",
      "input": {
        "command": "sqlite3 /var/lib/rollout/records.sqlite3 \"SELECT id, value FROM records;\"; echo '---'; cat /etc/systemd/system/rollout-seed.service 2>&1; echo '---'; systemctl cat rollout-v1.service rollout-proxy.service 2>&1 | head -60"
      },
      "output": "customer-alpha-73c|alpha-original\ncustomer-beta-a19|beta-original\n---\n[Unit]\nBefore=rollout-v1.service rollout-v2.service rollout-proxy.service\nDescription=Seed live v1 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/44ql83wxi6z28pk20x4179khgs5i5anf-unit-script-rollout-seed-start/bin/rollout-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n---\n# /etc/systemd/system/rollout-v1.service -> /nix/store/rcrgmhnjq004n1y7kzpbn6mp5mxfqblh-unit-rollout-v1.service/rollout-v1.service\n[Unit]\nAfter=rollout-seed.service\nDescription=Existing rollout v1 service\nRequires=rollout-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/13qi755lbgrlrh6c5jqjdlpf1f7nvffv-rollout-v1.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/rollout-proxy.service -> /nix/store/zs0l8ds3rl62nabiwjfgz8bykpp6z6kn-unit-rollout-proxy.service/rollout-proxy.service\n[Unit]\nAfter=rollout-seed.service rollout-v1.service\nDescription=Stable public rollout proxy\nRequires=rollout-seed.service rollout-v1.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/08ib8hkpsxizx3zrsv266idphl0r1hgb-rollout-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 11524,
      "duration_ms": 35
    },
    {
      "id": "toolu_01XtQ5Ry7P34kadGhrvuMibc",
      "name": "Write",
      "input": {
        "content": "import sqlite3\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nDB = \"/var/lib/rollout/records.sqlite3\"\n\ndef database():\n    connection = sqlite3.connect(DB, timeout=10)\n    connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n    return connection\n\nclass Handler(BaseHTTPRequestHandler):\n    def send(self, status, body=b\"\"):\n        self.send_response(status)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        self.wfile.write(body)\n\n    def do_GET(self):\n        if self.path == \"/health\":\n            self.send(200, b\"ready\")\n            return\n        if self.path == \"/version\":\n            self.send(200, b\"v2\")\n            return\n        if self.path.startswith(\"/records/\"):\n            connection = database()\n            row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone()\n            connection.close()\n            if row is None:\n                self.send(404)\n            else:\n                self.send(200, row[0].encode())\n            return\n        self.send(404)\n\n    def do_PUT(self):\n        if not self.path.startswith(\"/records/\"):\n            self.send(404)\n            return\n        value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode()\n        connection = database()\n        connection.execute(\n            \"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\",\n            (self.path[9:], value),\n        )\n        connection.commit()\n        connection.close()\n        self.send(204)\n\n    def log_message(self, *_):\n        pass\n\nThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n",
        "file_path": "/opt/rollout/v2.py"
      },
      "output": "Successfully wrote to /opt/rollout/v2.py",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 19572,
      "duration_ms": 0
    },
    {
      "id": "toolu_01GWj6CZqRPox7RdakWaVQL2",
      "name": "Bash",
      "input": {
        "command": "systemctl reset-failed rollout-v2.service; systemctl restart rollout-v2.service; sleep 1; systemctl status rollout-v2.service --no-pager"
      },
      "output": "● rollout-v2.service - Agent-built rollout v2 slot\n     Loaded: loaded (/etc/systemd/system/rollout-v2.service; enabled; preset: ignored)\n     Active: active (running) since Sun 2026-09-13 17:36:11 UTC; 1s ago\n Invocation: bdb8277777b94fcea4ea83f84bfa535b\n   Main PID: 3080 (python)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n      Tasks: 1 (limit: 811)\n     Memory: 9.6M (peak: 9.8M)\n        CPU: 120ms\n     CGroup: /system.slice/rollout-v2.service\n             └─3080 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /opt/rollout/v2.py\n\nSep 13 17:36:11 rollout-two systemd[1]: Started Agent-built rollout v2 slot.\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 22034,
      "duration_ms": 1064
    },
    {
      "id": "toolu_01WQv64VaaeuR6Sy5YHjywLc",
      "name": "Bash",
      "input": {
        "command": "curl -s -o /dev/null -w \"health:%{http_code}\\n\" http://127.0.0.1:8082/health\ncurl -s http://127.0.0.1:8082/health; echo\ncurl -s -o /dev/null -w \"version:%{http_code}\\n\" http://127.0.0.1:8082/version\ncurl -s http://127.0.0.1:8082/version; echo\ncurl -s -o /dev/null -w \"get-alpha:%{http_code}\\n\" http://127.0.0.1:8082/records/customer-alpha-73c\ncurl -s http://127.0.0.1:8082/records/customer-alpha-73c; echo\ncurl -s -o /dev/null -w \"get-beta:%{http_code}\\n\" http://127.0.0.1:8082/records/customer-beta-a19\ncurl -s http://127.0.0.1:8082/records/customer-beta-a19; echo\ncurl -s -o /dev/null -w \"put-new:%{http_code}\\n\" -X PUT --data \"hello-v2\" http://127.0.0.1:8082/records/v2-smoke-test\ncurl -s http://127.0.0.1:8082/records/v2-smoke-test; echo\ncurl -s -o /dev/null -w \"get-missing:%{http_code}\\n\" http://127.0.0.1:8082/records/does-not-exist"
      },
      "output": "health:200\nready\nversion:200\nv2\nget-alpha:200\nalpha-original\nget-beta:200\nbeta-original\nput-new:204\nhello-v2\nget-missing:404\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 27686,
      "duration_ms": 314
    },
    {
      "id": "toolu_019AqA4fDeJVQ5U1nkQos8Tp",
      "name": "Bash",
      "input": {
        "command": "curl -s -o /dev/null -w \"public-health:%{http_code}\\n\" http://127.0.0.1:8080/health\ncurl -s http://127.0.0.1:8080/version; echo\ndf -T /var/lib/rollout | tail -1"
      },
      "output": "public-health:200\nv1\n/dev/vda       ext4   1992552 35456   1835856   2% /\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 32025,
      "duration_ms": 94
    },
    {
      "id": "toolu_01M1daPoafmZpF8psThwZvaz",
      "name": "Bash",
      "input": {
        "command": "cd /tmp\n(for i in $(seq 1 200); do\n  code=$(curl -s -o /dev/null -w \"%{http_code}\" --max-time 1 http://127.0.0.1:8080/health)\n  echo \"$code\"\n  sleep 0.02\ndone) > monitor.log 2>&1 &\necho \"monitor pid $!\"\nsleep 0.3\necho \"8082\" > /var/lib/rollout/upstream.tmp\nmv /var/lib/rollout/upstream.tmp /var/lib/rollout/upstream\ncat /var/lib/rollout/upstream\nwait\nsort monitor.log | uniq -c"
      },
      "output": "monitor pid 4423\n8082\n    200 200\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 35731,
      "duration_ms": 10499
    },
    {
      "id": "toolu_019YnuQ5kX6z9ftLXusqtxQM",
      "name": "Bash",
      "input": {
        "command": "curl -s http://127.0.0.1:8080/version; echo\ncurl -s http://127.0.0.1:8080/health; echo\ncurl -s http://127.0.0.1:8080/records/customer-alpha-73c; echo\ncurl -s http://127.0.0.1:8080/records/customer-beta-a19; echo\ncurl -s -o /dev/null -w \"put:%{http_code}\\n\" -X PUT --data \"public-write-check\" http://127.0.0.1:8080/records/public-check\ncurl -s http://127.0.0.1:8080/records/public-check; echo\necho '--- service states ---'\nsystemctl show rollout-v1.service -p ActiveEnterTimestamp -p SubState\nsystemctl show rollout-proxy.service -p ActiveEnterTimestamp -p SubState\nsystemctl show rollout-v2.service -p ActiveEnterTimestamp -p SubState -p UnitFileState"
      },
      "output": "v2\nready\nalpha-original\nbeta-original\nput:204\npublic-write-check\n--- service states ---\nSubState=running\nActiveEnterTimestamp=Sun 2026-09-13 17:35:41 UTC\nSubState=running\nActiveEnterTimestamp=Sun 2026-09-13 17:35:41 UTC\nSubState=running\nUnitFileState=enabled\nActiveEnterTimestamp=Sun 2026-09-13 17:36:11 UTC\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 50797,
      "duration_ms": 194
    },
    {
      "id": "toolu_01SBuqnu7dCjpMxpYiUuE6gD",
      "name": "Bash",
      "input": {
        "command": "systemctl restart rollout-v2.service\nsleep 1\ncurl -s -o /dev/null -w \"post-restart health:%{http_code}\\n\" http://127.0.0.1:8080/health\ncurl -s http://127.0.0.1:8080/records/public-check; echo\ncurl -s http://127.0.0.1:8080/records/customer-alpha-73c; echo\nsystemctl is-enabled rollout-v2.service rollout-proxy.service rollout-v1.service\ncat /var/lib/rollout/upstream"
      },
      "output": "post-restart health:200\npublic-write-check\nalpha-original\nenabled\nenabled\nenabled\n8082\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 54814,
      "duration_ms": 1265
    }
  ],
  "timing": {
    "total_duration_ms": 60935,
    "model_rounds": [
      {
        "index": 1,
        "started_after_ms": 1,
        "duration_ms": 2475,
        "status": "completed",
        "usage": {
          "input_tokens": 5085,
          "output_tokens": 213,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.0123
        }
      },
      {
        "index": 2,
        "started_after_ms": 2760,
        "duration_ms": 5524,
        "status": "completed",
        "usage": {
          "input_tokens": 6794,
          "output_tokens": 486,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.018448
        }
      },
      {
        "index": 3,
        "started_after_ms": 8448,
        "duration_ms": 3075,
        "status": "completed",
        "usage": {
          "input_tokens": 9320,
          "output_tokens": 227,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.02091
        }
      },
      {
        "index": 4,
        "started_after_ms": 11562,
        "duration_ms": 8009,
        "status": "completed",
        "usage": {
          "input_tokens": 12124,
          "output_tokens": 883,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.033078
        }
      },
      {
        "index": 5,
        "started_after_ms": 19574,
        "duration_ms": 2460,
        "status": "completed",
        "usage": {
          "input_tokens": 13032,
          "output_tokens": 138,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.027444
        }
      },
      {
        "index": 6,
        "started_after_ms": 23100,
        "duration_ms": 4585,
        "status": "completed",
        "usage": {
          "input_tokens": 13522,
          "output_tokens": 524,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.032284
        }
      },
      {
        "index": 7,
        "started_after_ms": 28002,
        "duration_ms": 4022,
        "status": "completed",
        "usage": {
          "input_tokens": 14110,
          "output_tokens": 284,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.03106
        }
      },
      {
        "index": 8,
        "started_after_ms": 32122,
        "duration_ms": 3609,
        "status": "completed",
        "usage": {
          "input_tokens": 14434,
          "output_tokens": 309,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.031958
        }
      },
      {
        "index": 9,
        "started_after_ms": 46231,
        "duration_ms": 4564,
        "status": "completed",
        "usage": {
          "input_tokens": 14765,
          "output_tokens": 422,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.03375
        }
      },
      {
        "index": 10,
        "started_after_ms": 50992,
        "duration_ms": 3821,
        "status": "completed",
        "usage": {
          "input_tokens": 15357,
          "output_tokens": 270,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.033414
        }
      },
      {
        "index": 11,
        "started_after_ms": 56081,
        "duration_ms": 4854,
        "status": "completed",
        "usage": {
          "input_tokens": 15667,
          "output_tokens": 243,
          "cache_read_tokens": 0,
          "cache_creation_tokens": 0,
          "cost_usd": 0.033764
        }
      }
    ]
  }
}