{
  "schema_version": 2,
  "model": "openai/gpt-5.6-luna",
  "outcome": {
    "status": "running"
  },
  "usage": {
    "input_tokens": 15,
    "output_tokens": 2101,
    "cache_read_tokens": 16500,
    "cache_creation_tokens": 3511,
    "cost_usd": 0.00373195
  },
  "messages": [
    {
      "role": "user",
      "content": "Build the service in the contract appended below on this blank host. Speed matters, but only a durable deployment 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# Durable service contract\n\nExpose an HTTP service on port 8080. `GET /health` must return status 200 and\nthe exact body `ready`. `PUT /records/<id>` stores the request body and returns\nstatus 204. `GET /records/<id>` returns the exact stored body with status 200.\n\nThe blank guest includes a dormant `builder-app.service` deployment slot whose\nexecutable path is `/opt/builder/app.py`. Supply the application there and start\nthe existing unit. Stored records must survive restart of that service and a\nhost reboot. The deployment must return without agent help after reboot."
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "**Planning system implementation**\n\nI need to take action and inspect the host system. My goal is to implement the application located at /opt/builder/app.py using systemd. It’s essential to ensure there’s durable persistence for ongoing operations. I also need to verify everything is running as it should. I think I'll use tools for commentary during this process to keep track of what I'm doing. Let’s get started with the plan!",
          "details": [
            {
              "format": "openai-responses-v1",
              "index": 0,
              "summary": "**Planning system implementation**\n\nI need to take action and inspect the host system. My goal is to implement the application located at /opt/builder/app.py using systemd. It’s essential to ensure there’s durable persistence for ongoing operations. I also need to verify everything is running as it should. I think I'll use tools for commentary during this process to keep track of what I'm doing. Let’s get started with the plan!",
              "type": "reasoning.summary"
            },
            {
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              "format": "openai-responses-v1",
              "id": "rs_01c09a317e8adfc0016aa4ba28a4f887d181d24fcaa56f3a22",
              "index": 1,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_OjjIw0RKiPtIskuwMq2cobLX",
          "name": "TodoWrite",
          "input": {
            "todos": [
              {
                "activeForm": "Inspecting the deployment slot and host",
                "content": "Inspect the existing service unit and filesystem",
                "status": "in_progress"
              },
              {
                "activeForm": "Implementing the durable HTTP service",
                "content": "Create the application and persistent record storage",
                "status": "pending"
              },
              {
                "activeForm": "Starting and verifying the service",
                "content": "Enable/start the unit and test persistence behavior",
                "status": "pending"
              }
            ]
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_OjjIw0RKiPtIskuwMq2cobLX",
          "content": "Added:\n  + Inspect the existing service unit and filesystem\n  + Create the application and persistent record storage\n  + Enable/start the unit and test persistence behavior\n\nCurrent tasks:\n  ◉ Inspect the existing service unit and filesystem\n  ○ Create the application and persistent record storage\n  ○ Enable/start the unit and test persistence behavior\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "tool_use",
          "id": "call_YADRRuOnlrPce8wan92zvVVt",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "systemctl cat builder-app.service && printf '\\n--- status ---\\n' && systemctl status builder-app.service --no-pager || true",
            "description": "Inspect existing systemd unit",
            "timeout": 120000
          }
        },
        {
          "type": "tool_use",
          "id": "call_3r9KBlGLpKHYiNwvSeembM3C",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "ls -la /opt /opt/builder 2>&1 || true; printf '\\n--- OS ---\\n'; cat /etc/os-release | head -5",
            "description": "Inspect application directory and OS",
            "timeout": 120000
          }
        },
        {
          "type": "tool_use",
          "id": "call_qH78AXfcmK8KOX44UabSAc3v",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "ss -ltnp | head -30",
            "description": "Inspect listening ports",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_YADRRuOnlrPce8wan92zvVVt",
          "content": "# /etc/systemd/system/builder-app.service -> /nix/store/bkhc7c1djj4z9s51r616fqfbc55zwdvs-unit-builder-app.service/builder-app.service\n[Unit]\nAfter=network.target\nDescription=Agent-built application slot\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/54jg0kk0cn5h7j19r0l8x36fmbfywwjj-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/di26b1kkbammy0sj70nq5qzvfrh78wxl-coreutils-9.11/bin:/nix/store/fcqbwp5hx5wh3lzf0457wmf0divknz7y-findutils-4.11.0/bin:/nix/store/aak8d9mrdv9sgn0lcg7xss7wxdg9sqh3-gnugrep-3.12/bin:/nix/store/7mfsmbhsd3arnypipwm251rcd0b45riy-gnused-4.10/bin:/nix/store/r6sz8p6sd6c73fp9z8nzl04dri7lyx8n-systemd-261.1/bin:/nix/store/di26b1kkbammy0sj70nq5qzvfrh78wxl-coreutils-9.11/sbin:/nix/store/fcqbwp5hx5wh3lzf0457wmf0divknz7y-findutils-4.11.0/sbin:/nix/store/aak8d9mrdv9sgn0lcg7xss7wxdg9sqh3-gnugrep-3.12/sbin:/nix/store/7mfsmbhsd3arnypipwm251rcd0b45riy-gnused-4.10/sbin:/nix/store/r6sz8p6sd6c73fp9z8nzl04dri7lyx8n-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/2nndxyf3phkb5aggxm3c16sapa0f49kz-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/gxzhl7aaiid7zp3y47jqqiq7zg5mqpwp-python3-3.14.6/bin/python /opt/builder/app.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n--- status ---\n× builder-app.service - Agent-built application slot\n     Loaded: loaded (/etc/systemd/system/builder-app.service; enabled; preset: ignored)\n     Active: failed (Result: start-limit-hit) since Sat 2026-09-12 02:34:14 UTC; 5s ago\n   Duration: 105ms\n Invocation: dbdd4e2125b449b793a0bd491b1c3e75\n    Process: 627 ExecStart=/nix/store/gxzhl7aaiid7zp3y47jqqiq7zg5mqpwp-python3-3.14.6/bin/python /opt/builder/app.py (code=exited, status=2)\n   Main PID: 627 (code=exited, status=2)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n   Mem peak: 4.1M\n        CPU: 41ms\n\nSep 12 02:34:13 builder-one systemd[1]: builder-app.service: Main process exited, code=exited, status=2/INVALIDARGUMENT\nSep 12 02:34:13 builder-one systemd[1]: builder-app.service: Failed with result 'exit-code'.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Scheduled restart job, restart counter is at 5.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Start request repeated too quickly.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Failed with result 'start-limit-hit'.\nSep 12 02:34:14 builder-one systemd[1]: Failed to start Agent-built application slot.\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_3r9KBlGLpKHYiNwvSeembM3C",
          "content": "ls: cannot access '/opt': No such file or directory\nls: cannot access '/opt/builder': No such file or directory\n\n--- OS ---\nANSI_COLOR=\"0;38;2;126;186;228\"\nBUG_REPORT_URL=\"https://github.com/NixOS/nixpkgs/issues\"\nBUILD_ID=\"26.11.20260810.2fcb964\"\nCPE_NAME=\"cpe:/o:nixos:nixos:26.11\"\nDEFAULT_HOSTNAME=nixos\n"
        },
        {
          "type": "tool_result",
          "tool_use_id": "call_qH78AXfcmK8KOX44UabSAc3v",
          "content": "State  Recv-Q Send-Q Local Address:Port  Peer Address:PortProcess\nLISTEN 0      4096      127.0.0.54:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=25))\nLISTEN 0      128        127.0.0.1:18012      0.0.0.0:*    users:((\"sshd-session\",pid=622,fd=10))\nLISTEN 0      128          0.0.0.0:22         0.0.0.0:*    users:((\"sshd\",pid=571,fd=6))\nLISTEN 0      4096         0.0.0.0:5355       0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=14))\nLISTEN 0      4096   127.0.0.53%lo:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=23))\nLISTEN 0      128             [::]:22            [::]:*    users:((\"sshd\",pid=571,fd=7))\nLISTEN 0      4096            [::]:5355          [::]:*    users:((\"systemd-resolve\",pid=297,fd=16))\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "text": "**Mapping records**\n\nI need to create a persistent mapping from ID to body for retrieval. Using the filename SHA256 for the ID and metadata sounds like a plan. I'll store records as files keyed by hash since only one process owns the mapping, and hashing is deterministic. For GET files, I have to consider race locking and ensure writes are persistent. The ID needs to be decoded correctly from URLs but should reject encoded slashes. I'll use proper parsing to handle the HTTP server paths and ensure the body content returned is exact.**Managing HTTP requests**\n\nI need to handle the Content-Length requirement for HTTP requests carefully. The server reads the status codes, but for PUT requests, there might be no Content-Length specified. If that's the case, I should read none or ensure chunked transfers are supported. I should probably use curl for testing. It’s important to parse Content-Length carefully and reject malformed requests with a 400 error. Additionally, I need to ensure durability by using fsync and os.replace methods, while considering potential stale temporary data too. Setting umask doesn't seem necessary here.**Considering the working directory**\n\nI'm looking at the default working directory, which is set to \"/\", and I wonder if it needs any modifications. Should I change the unit? The existing settings appear to be enabled for output, but it seems like this is app-specific. I think I need to take a closer look at the contents of \"/var/lib\" before I proceed to make any changes. Then I'll write based on what I find.",
          "details": [
            {
              "format": "openai-responses-v1",
              "index": 0,
              "summary": "**Mapping records**\n\nI need to create a persistent mapping from ID to body for retrieval. Using the filename SHA256 for the ID and metadata sounds like a plan. I'll store records as files keyed by hash since only one process owns the mapping, and hashing is deterministic. For GET files, I have to consider race locking and ensure writes are persistent. The ID needs to be decoded correctly from URLs but should reject encoded slashes. I'll use proper parsing to handle the HTTP server paths and ensure the body content returned is exact.**Managing HTTP requests**\n\nI need to handle the Content-Length requirement for HTTP requests carefully. The server reads the status codes, but for PUT requests, there might be no Content-Length specified. If that's the case, I should read none or ensure chunked transfers are supported. I should probably use curl for testing. It’s important to parse Content-Length carefully and reject malformed requests with a 400 error. Additionally, I need to ensure durability by using fsync and os.replace methods, while considering potential stale temporary data too. Setting umask doesn't seem necessary here.",
              "type": "reasoning.summary"
            },
            {
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              "format": "openai-responses-v1",
              "id": "rs_01c09a317e8adfc0016aa4ba2e8eb087d1ab1f6d7de3dae5f3",
              "index": 1,
              "type": "reasoning.encrypted"
            },
            {
              "format": "openai-responses-v1",
              "index": 2,
              "summary": "**Considering the working directory**\n\nI'm looking at the default working directory, which is set to \"/\", and I wonder if it needs any modifications. Should I change the unit? The existing settings appear to be enabled for output, but it seems like this is app-specific. I think I need to take a closer look at the contents of \"/var/lib\" before I proceed to make any changes. Then I'll write based on what I find.",
              "type": "reasoning.summary"
            },
            {
              "data": "gAAAAABqpLo2H2VwDC0nHZpVgxYt4QqApXXyN7WgbIFS8GyXv1y07LK5MA2dI22liLRIgOLZQupQy5Vg-5G_r_ga3ZNXUa-BWH-FufhLMMGDMhkNTLyZnzfbS3of0F3jZXFJL83d_Vd76Efb0A1xumyh00m7MJgjaDAI7mqFC8S26Evmn8qz8ZuvjmZ1rBTDrOmT4BAoFhslPTKktmbVRhq4n_-F19ZxKJF2b-5vyrLltahBSqiHs8Gy19-bJWcy0u68lNkMUnOtyE-WKlhAwmlCKl8oJAyoQi9rlBxClnZBGU-dOIWfuHwdyvy67O_CvWrHyTOTzBX6nTyC1kLnFgT5Z7rbGOjBsdaQAZ9M6S2kNwZgnM1tRpunwe4sdIwB87Ub-ZBBjaHloN9b1XPEqZo7FK5_bDLyrrgXyDO9K9ZiAd4jlvudzWJ9EYeHR9oQusoeolZw7c6BbsycU6VKdNqRq01B9SygZdmTRdl9B7Kxs2IVU6XjB7lyx_I8KriQ2gAZ0cua3mt3mtRND7I1CcSMl0QwwMUHP9fiJGrAEtaLv9OCXm_q8yvxGZiSsMPMhQVoVfCSMxlrQZalH5yTs5EdERvGidm_-PBx4VcqaZKsAd27QrS2MlPXUiOX-Gzf6gCs0b3RWYmH-_nzRTwo01rpOmAkfiCE8XRdfhs8sK2XmJL-05cXIBKFWytm-w-b60zQ5rIPvAh7OfP4k4B7WjEvytb3Yw4StZesKF6J5pmN4WlQ3f-ujcRo1Ba0ybZKO7cJqP4aj-dIxSDhNbIQr32GWkpuP6Xfcc_VFotbWteVErzYP1C7YMItF2Ee5q3mhFAFJnDGVRdAduKiI1MRoBJbQrZ9PnNTfz0d_ei_RU7a-Z5Y12V0u3VvaPI-KaeOiMzKQtnu3N0KDS3B9FbmIuQqO4XlekXBUjHeTH4gub766EibOUl9PIG_kJIDAFPaFv606P6-WMd_3d3Ci_72KB3iEGAncmtUTeKXGtR--uc8uW1UKzGEbl0g_6QUv6qUXS7sjPMkyth2MO0FoHd-QH6mz9uTA9aMuq7e1SwGSlu8fQ1KGpjVHx2R84KDO4du5b2k472R5LABCAhac6MfXhX5Zz86AnY-PbH6GbIt68ja6PMJBDIWPazIky03s_Mgc7e-X_-lSOC4wMcn-MglOOxwuunf6pwF22TxE5_nO3ecHxDAHPiQgVgXIm0ZhvGVZMHW94cA3tnfnzos6mmfI1ANCPFwAVaRJbtEDDOvtlLPzU0X7PZCdKj3re109gkP-AMRbhwX5KWP9lgCr3aD57ecZoR2wuyV0a6fsnp5lPmLVIfh6tU3vuILR-t5hBV-O7oDFRjGtxT4VyjqtEz1fHVN1hwLdkt7qTYnvqvYSNaxqw3YiSBPrlmzxYtWRzMUQaXJxEc-m2sspVxzozVAT3TVuPMgrpqhCh9w4d1twVAy2lilyN_ObNjgN7watXJizm-TH-UiAqIhJtlI-doNnOeZjZuMVsVxR_Ur4e_bl0C9aDSIgjjmjGQsk4GksJAUx1MTD7qoFwURwoaNjsdARy_76iouiugUIg==.eyJlbmRwb2ludF9zbHVnIjoib3BlbmFpL2dwdC01LjYtbHVuYS0yMDI2MDcwOXxvcGVuYWkifQ",
              "format": "openai-responses-v1",
              "id": "rs_01c09a317e8adfc0016aa4ba360f9c87d18fb8eddb3dbf8f33",
              "index": 3,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_Vi5svjPSIqkpDBJEK5vlu3mr",
          "name": "TodoWrite",
          "input": {
            "todos": [
              {
                "activeForm": "Inspecting the deployment slot and host",
                "content": "Inspect the existing service unit and filesystem",
                "status": "completed"
              },
              {
                "activeForm": "Implementing the durable HTTP service",
                "content": "Create the application and persistent record storage",
                "status": "in_progress"
              },
              {
                "activeForm": "Starting and verifying the service",
                "content": "Enable/start the unit and test persistence behavior",
                "status": "pending"
              }
            ]
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_Vi5svjPSIqkpDBJEK5vlu3mr",
          "content": "Started:\n  > Implementing the durable HTTP service\nCompleted:\n  ✓ Inspect the existing service unit and filesystem\n\nCurrent tasks:\n  ✓ Inspect the existing service unit and filesystem\n  ◉ Create the application and persistent record storage\n  ○ Enable/start the unit and test persistence behavior\n"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "tool_use",
          "id": "call_bGKoajFZJc5mFayn7YuuZUQt",
          "name": "Write",
          "input": {
            "content": "#!/usr/bin/env python3\nimport hashlib\nimport os\nimport tempfile\nimport threading\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\nfrom urllib.parse import unquote, urlsplit\n\nHOST = \"0.0.0.0\"\nPORT = 8080\nRECORD_DIR = \"/var/lib/builder-app/records\"\n\nos.makedirs(RECORD_DIR, mode=0o755, exist_ok=True)\n_record_lock = threading.RLock()\n\n\ndef record_path(record_id):\n    # Hashing keeps arbitrary URL ids out of the filesystem namespace while\n    # giving each id a stable location across process and host restarts.\n    digest = hashlib.sha256(record_id.encode(\"utf-8\")).hexdigest()\n    return os.path.join(RECORD_DIR, digest)\n\n\ndef store_record(record_id, body):\n    destination = record_path(record_id)\n    directory = os.path.dirname(destination)\n    with _record_lock:\n        fd, temporary = tempfile.mkstemp(prefix=\".record-\", dir=directory)\n        try:\n            with os.fdopen(fd, \"wb\") as output:\n                output.write(body)\n                output.flush()\n                os.fsync(output.fileno())\n            os.replace(temporary, destination)\n            directory_fd = os.open(directory, os.O_RDONLY | os.O_DIRECTORY)\n            try:\n                os.fsync(directory_fd)\n            finally:\n                os.close(directory_fd)\n        finally:\n            try:\n                os.unlink(temporary)\n            except FileNotFoundError:\n                pass\n\n\nclass RecordHandler(BaseHTTPRequestHandler):\n    protocol_version = \"HTTP/1.1\"\n\n    def do_GET(self):\n        path = urlsplit(self.path).path\n        if path == \"/health\":\n            self._send_bytes(200, b\"ready\", \"text/plain\")\n            return\n\n        record_id = self._record_id(path)\n        if record_id is None:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n\n        try:\n            with _record_lock:\n                with open(record_path(record_id), \"rb\") as record:\n                    body = record.read()\n        except FileNotFoundError:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n        self._send_bytes(200, body, \"application/octet-stream\")\n\n    def do_PUT(self):\n        record_id = self._record_id(urlsplit(self.path).path)\n        if record_id is None:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n\n        try:\n            length = int(self.headers.get(\"Content-Length\", \"0\"))\n        except ValueError:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n        if length < 0:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n\n        body = self.rfile.read(length)\n        if len(body) != length:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n        store_record(record_id, body)\n        self.send_response(204)\n        self.send_header(\"Content-Length\", \"0\")\n        self.end_headers()\n\n    @staticmethod\n    def _record_id(path):\n        parts = path.split(\"/\")\n        if len(parts) != 3 or parts[1] != \"records\" or not parts[2]:\n            return None\n        return unquote(parts[2])\n\n    def _send_bytes(self, status, body, content_type):\n        self.send_response(status)\n        self.send_header(\"Content-Type\", content_type)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        if self.command != \"HEAD\":\n            self.wfile.write(body)\n\n    def log_message(self, format, *args):\n        return\n\n\nif __name__ == \"__main__\":\n    server = ThreadingHTTPServer((HOST, PORT), RecordHandler)\n    server.serve_forever()\n",
            "file_path": "/opt/builder/app.py"
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_bGKoajFZJc5mFayn7YuuZUQt",
          "content": "Successfully wrote to /opt/builder/app.py"
        }
      ]
    },
    {
      "role": "assistant",
      "content": [
        {
          "type": "reasoning",
          "details": [
            {
              "data": "gAAAAABqpLpBGmb8gmP7g4rkGbaDi7Xg_8xAfU7qZ_ugPlEUyJMCnmIsJ2Gh3PfJnkhy2EG9MaQJVkij-YkaZum2z6-si_Pb4_glvBFUkK9FsLJogdmK25wMwc_XHSJ-R4ESN3Etd45i4fvXzbpsIQxFIOiPGwWmvhvdhPeZ9RvxKBGB3uGnI0iY2Avt_KX0nTfXSGwKe3xHOIxCFOZYaD8lLyLHCzgnBWv7TBHMXNfpYblsvOa2hpPUkt5JMymyyxvuN-A_Ffxbgbx-wpsDNbxXqPlZyxSo8SgOQEarXutFY5PY6Ndzf7uN2w08-rwb_VbWSnUAuZI2ZYADeEOj4qtEZsNQeP2R60mdzJW-D3ykUulWLs5F4IFNZyxnhj5Sj7vcgD47P1j0NNURb8gDe4VbFfD9A6QzaWVlmesqK0CKT_A8x9bUuwr3mf274B_9Ae10Th9l4qalD-3ViUIQ6WO3aXM2NNOF7FtiwOaYdopRnq883Yp9gTbaiFYKq_ZEzDOeNzEN0ILAcYa0YrsIJyHk4KYyf8FBLMu2xso68qnwkDbKuYY8AFIILJPfu7MqKw78qPlzbEuqqJ4RILfM8LWaxTksvqTrkD74wLalQp9GzhIRNMzWFpsK87twXUQTAnDT90lsh4he5wcYkD7Vri14Advb6aTe5YHOYKX0LPhYS1Yrz-szJVosXXIK4rKHKr1ZbMVOKpqi8c_jrF6zfhiuR_6G0j524GKqhlFhGsPatiWKS9U0a5P3uMoAG03kuiuE5gpRflNDP281Ph3WHt9uuZQ---Jfm5--Qd8LX0U2bPoEnHDEr29IU6SPvvAxK7MVTxTbGDHg8OY9ow_CXKZGfzHbYjBfqzOYqddgTk-SBvyBgmQLBxcQ2iAjT5ps7GBDzizl7kVEnbVtdjMRcYsNRZBRIruk9TlxeKtuq210qwQlGTwq7G94ELJaJCPgWZrGJbecwaBWZ9xXmD1hqYeyo9iLp_WLXYLSInzgYIL8uzj5O-tvcYpFLp6y8jn0Ax_4YUyUhFEeZb-h6i7GqisSnCj7niq5xv67TRURh3iRE2O6vdQsIqGhTs3aeqdIivgVEv3jT519Gz7TCoaRq-ddANPIxvfswHecxL5NqVOa_6vVWdXz3nbpm98sb9hQs1iealyp9xc4oa_y-jKWgK3u7FEWHZPNIJBq-0KB_37R-cKDPUF82rD3BEgPUdSjSIiycT_Tk5kjrSyrVZN-E9c0CXiKVm80kb68pWJcCzZkME3hbOyKx4GMPhWxOHJZUVC18GLyS0_hCw4OUnjIgvqQjQK2etXQnxR995VX6B2GyYJ0siuEfya2qaWdusfYVDNAYVMXzM-3Ddumbqobt3zr7SMY732lkUhY0TiEs2KjUuYFZ9-1B5cCO71_IZJb3xi13xJruqJGmvfKF8jm9BSObx-CbeLimBwcIG1fLTmqqole_JN6zZgbV5UuwmlvKGBqkqmZdvVhtg0wOikd-xczQroATM4eqUEIPcCMJKZzPmf3IdP9d9FlzP2GkaNXNoarDNkXJQP2E_6pNBcPz9ENSsTnO79YDamBNX-VFwi2QO2RUA9UgRHkQ4BERo37we3yqfekYt2VAdTgYR-uue6GaL4l8-E4VIi8KDOXp4mrnDwWzrZfVAv_heoMwxcsFhMhdLZKF69-gQAQKV-DaaEIOuj5iaA0itTyFJ4g8-Yml_x_QyiMeAo_rYBQfWo5YDSwsAIbkxWQFyDvqD2IDPjVlg8215vjuChx7gN9Mi3To8ijBwKy0sM=.eyJlbmRwb2ludF9zbHVnIjoib3BlbmFpL2dwdC01LjYtbHVuYS0yMDI2MDcwOXxvcGVuYWkifQ",
              "format": "openai-responses-v1",
              "id": "rs_01c09a317e8adfc0016aa4ba405d4c87d185e748a418d1fd38",
              "index": 0,
              "type": "reasoning.encrypted"
            }
          ]
        },
        {
          "type": "tool_use",
          "id": "call_xRkIrLthJDLzhcqxXLFYOvJb",
          "name": "Bash",
          "input": {
            "background": false,
            "command": "chmod 0755 /opt/builder/app.py && python3 -m py_compile /opt/builder/app.py && systemctl reset-failed builder-app.service && systemctl enable --now builder-app.service && systemctl is-enabled builder-app.service && systemctl is-active builder-app.service",
            "description": "Install and start the application service",
            "timeout": 120000
          }
        }
      ]
    },
    {
      "role": "user",
      "content": [
        {
          "type": "tool_result",
          "tool_use_id": "call_xRkIrLthJDLzhcqxXLFYOvJb",
          "content": "enabled\nactive\n"
        }
      ]
    }
  ],
  "tool_trace": [
    {
      "id": "call_OjjIw0RKiPtIskuwMq2cobLX",
      "name": "TodoWrite",
      "input": {
        "todos": [
          {
            "activeForm": "Inspecting the deployment slot and host",
            "content": "Inspect the existing service unit and filesystem",
            "status": "in_progress"
          },
          {
            "activeForm": "Implementing the durable HTTP service",
            "content": "Create the application and persistent record storage",
            "status": "pending"
          },
          {
            "activeForm": "Starting and verifying the service",
            "content": "Enable/start the unit and test persistence behavior",
            "status": "pending"
          }
        ]
      },
      "output": "Added:\n  + Inspect the existing service unit and filesystem\n  + Create the application and persistent record storage\n  + Enable/start the unit and test persistence behavior\n\nCurrent tasks:\n  ◉ Inspect the existing service unit and filesystem\n  ○ Create the application and persistent record storage\n  ○ Enable/start the unit and test persistence behavior\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 3028,
      "duration_ms": 0
    },
    {
      "id": "call_YADRRuOnlrPce8wan92zvVVt",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "systemctl cat builder-app.service && printf '\\n--- status ---\\n' && systemctl status builder-app.service --no-pager || true",
        "description": "Inspect existing systemd unit",
        "timeout": 120000
      },
      "output": "# /etc/systemd/system/builder-app.service -> /nix/store/bkhc7c1djj4z9s51r616fqfbc55zwdvs-unit-builder-app.service/builder-app.service\n[Unit]\nAfter=network.target\nDescription=Agent-built application slot\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/54jg0kk0cn5h7j19r0l8x36fmbfywwjj-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/di26b1kkbammy0sj70nq5qzvfrh78wxl-coreutils-9.11/bin:/nix/store/fcqbwp5hx5wh3lzf0457wmf0divknz7y-findutils-4.11.0/bin:/nix/store/aak8d9mrdv9sgn0lcg7xss7wxdg9sqh3-gnugrep-3.12/bin:/nix/store/7mfsmbhsd3arnypipwm251rcd0b45riy-gnused-4.10/bin:/nix/store/r6sz8p6sd6c73fp9z8nzl04dri7lyx8n-systemd-261.1/bin:/nix/store/di26b1kkbammy0sj70nq5qzvfrh78wxl-coreutils-9.11/sbin:/nix/store/fcqbwp5hx5wh3lzf0457wmf0divknz7y-findutils-4.11.0/sbin:/nix/store/aak8d9mrdv9sgn0lcg7xss7wxdg9sqh3-gnugrep-3.12/sbin:/nix/store/7mfsmbhsd3arnypipwm251rcd0b45riy-gnused-4.10/sbin:/nix/store/r6sz8p6sd6c73fp9z8nzl04dri7lyx8n-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/2nndxyf3phkb5aggxm3c16sapa0f49kz-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/gxzhl7aaiid7zp3y47jqqiq7zg5mqpwp-python3-3.14.6/bin/python /opt/builder/app.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n--- status ---\n× builder-app.service - Agent-built application slot\n     Loaded: loaded (/etc/systemd/system/builder-app.service; enabled; preset: ignored)\n     Active: failed (Result: start-limit-hit) since Sat 2026-09-12 02:34:14 UTC; 5s ago\n   Duration: 105ms\n Invocation: dbdd4e2125b449b793a0bd491b1c3e75\n    Process: 627 ExecStart=/nix/store/gxzhl7aaiid7zp3y47jqqiq7zg5mqpwp-python3-3.14.6/bin/python /opt/builder/app.py (code=exited, status=2)\n   Main PID: 627 (code=exited, status=2)\n         IP: 0B in, 0B out\n         IO: 0B read, 0B written\n   Mem peak: 4.1M\n        CPU: 41ms\n\nSep 12 02:34:13 builder-one systemd[1]: builder-app.service: Main process exited, code=exited, status=2/INVALIDARGUMENT\nSep 12 02:34:13 builder-one systemd[1]: builder-app.service: Failed with result 'exit-code'.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Scheduled restart job, restart counter is at 5.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Start request repeated too quickly.\nSep 12 02:34:14 builder-one systemd[1]: builder-app.service: Failed with result 'start-limit-hit'.\nSep 12 02:34:14 builder-one systemd[1]: Failed to start Agent-built application slot.\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 5612,
      "duration_ms": 118
    },
    {
      "id": "call_3r9KBlGLpKHYiNwvSeembM3C",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "ls -la /opt /opt/builder 2>&1 || true; printf '\\n--- OS ---\\n'; cat /etc/os-release | head -5",
        "description": "Inspect application directory and OS",
        "timeout": 120000
      },
      "output": "ls: cannot access '/opt': No such file or directory\nls: cannot access '/opt/builder': No such file or directory\n\n--- OS ---\nANSI_COLOR=\"0;38;2;126;186;228\"\nBUG_REPORT_URL=\"https://github.com/NixOS/nixpkgs/issues\"\nBUILD_ID=\"26.11.20260810.2fcb964\"\nCPE_NAME=\"cpe:/o:nixos:nixos:26.11\"\nDEFAULT_HOSTNAME=nixos\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 5731,
      "duration_ms": 36
    },
    {
      "id": "call_qH78AXfcmK8KOX44UabSAc3v",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "ss -ltnp | head -30",
        "description": "Inspect listening ports",
        "timeout": 120000
      },
      "output": "State  Recv-Q Send-Q Local Address:Port  Peer Address:PortProcess\nLISTEN 0      4096      127.0.0.54:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=25))\nLISTEN 0      128        127.0.0.1:18012      0.0.0.0:*    users:((\"sshd-session\",pid=622,fd=10))\nLISTEN 0      128          0.0.0.0:22         0.0.0.0:*    users:((\"sshd\",pid=571,fd=6))\nLISTEN 0      4096         0.0.0.0:5355       0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=14))\nLISTEN 0      4096   127.0.0.53%lo:53         0.0.0.0:*    users:((\"systemd-resolve\",pid=297,fd=23))\nLISTEN 0      128             [::]:22            [::]:*    users:((\"sshd\",pid=571,fd=7))\nLISTEN 0      4096            [::]:5355          [::]:*    users:((\"systemd-resolve\",pid=297,fd=16))\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 5767,
      "duration_ms": 61
    },
    {
      "id": "call_Vi5svjPSIqkpDBJEK5vlu3mr",
      "name": "TodoWrite",
      "input": {
        "todos": [
          {
            "activeForm": "Inspecting the deployment slot and host",
            "content": "Inspect the existing service unit and filesystem",
            "status": "completed"
          },
          {
            "activeForm": "Implementing the durable HTTP service",
            "content": "Create the application and persistent record storage",
            "status": "in_progress"
          },
          {
            "activeForm": "Starting and verifying the service",
            "content": "Enable/start the unit and test persistence behavior",
            "status": "pending"
          }
        ]
      },
      "output": "Started:\n  > Implementing the durable HTTP service\nCompleted:\n  ✓ Inspect the existing service unit and filesystem\n\nCurrent tasks:\n  ✓ Inspect the existing service unit and filesystem\n  ◉ Create the application and persistent record storage\n  ○ Enable/start the unit and test persistence behavior\n",
      "is_error": false,
      "read_only": true,
      "started_after_ms": 15615,
      "duration_ms": 0
    },
    {
      "id": "call_bGKoajFZJc5mFayn7YuuZUQt",
      "name": "Write",
      "input": {
        "content": "#!/usr/bin/env python3\nimport hashlib\nimport os\nimport tempfile\nimport threading\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\nfrom urllib.parse import unquote, urlsplit\n\nHOST = \"0.0.0.0\"\nPORT = 8080\nRECORD_DIR = \"/var/lib/builder-app/records\"\n\nos.makedirs(RECORD_DIR, mode=0o755, exist_ok=True)\n_record_lock = threading.RLock()\n\n\ndef record_path(record_id):\n    # Hashing keeps arbitrary URL ids out of the filesystem namespace while\n    # giving each id a stable location across process and host restarts.\n    digest = hashlib.sha256(record_id.encode(\"utf-8\")).hexdigest()\n    return os.path.join(RECORD_DIR, digest)\n\n\ndef store_record(record_id, body):\n    destination = record_path(record_id)\n    directory = os.path.dirname(destination)\n    with _record_lock:\n        fd, temporary = tempfile.mkstemp(prefix=\".record-\", dir=directory)\n        try:\n            with os.fdopen(fd, \"wb\") as output:\n                output.write(body)\n                output.flush()\n                os.fsync(output.fileno())\n            os.replace(temporary, destination)\n            directory_fd = os.open(directory, os.O_RDONLY | os.O_DIRECTORY)\n            try:\n                os.fsync(directory_fd)\n            finally:\n                os.close(directory_fd)\n        finally:\n            try:\n                os.unlink(temporary)\n            except FileNotFoundError:\n                pass\n\n\nclass RecordHandler(BaseHTTPRequestHandler):\n    protocol_version = \"HTTP/1.1\"\n\n    def do_GET(self):\n        path = urlsplit(self.path).path\n        if path == \"/health\":\n            self._send_bytes(200, b\"ready\", \"text/plain\")\n            return\n\n        record_id = self._record_id(path)\n        if record_id is None:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n\n        try:\n            with _record_lock:\n                with open(record_path(record_id), \"rb\") as record:\n                    body = record.read()\n        except FileNotFoundError:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n        self._send_bytes(200, body, \"application/octet-stream\")\n\n    def do_PUT(self):\n        record_id = self._record_id(urlsplit(self.path).path)\n        if record_id is None:\n            self._send_bytes(404, b\"Not Found\", \"text/plain\")\n            return\n\n        try:\n            length = int(self.headers.get(\"Content-Length\", \"0\"))\n        except ValueError:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n        if length < 0:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n\n        body = self.rfile.read(length)\n        if len(body) != length:\n            self._send_bytes(400, b\"Bad Request\", \"text/plain\")\n            return\n        store_record(record_id, body)\n        self.send_response(204)\n        self.send_header(\"Content-Length\", \"0\")\n        self.end_headers()\n\n    @staticmethod\n    def _record_id(path):\n        parts = path.split(\"/\")\n        if len(parts) != 3 or parts[1] != \"records\" or not parts[2]:\n            return None\n        return unquote(parts[2])\n\n    def _send_bytes(self, status, body, content_type):\n        self.send_response(status)\n        self.send_header(\"Content-Type\", content_type)\n        self.send_header(\"Content-Length\", str(len(body)))\n        self.end_headers()\n        if self.command != \"HEAD\":\n            self.wfile.write(body)\n\n    def log_message(self, format, *args):\n        return\n\n\nif __name__ == \"__main__\":\n    server = ThreadingHTTPServer((HOST, PORT), RecordHandler)\n    server.serve_forever()\n",
        "file_path": "/opt/builder/app.py"
      },
      "output": "Successfully wrote to /opt/builder/app.py",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 23783,
      "duration_ms": 0
    },
    {
      "id": "call_xRkIrLthJDLzhcqxXLFYOvJb",
      "name": "Bash",
      "input": {
        "background": false,
        "command": "chmod 0755 /opt/builder/app.py && python3 -m py_compile /opt/builder/app.py && systemctl reset-failed builder-app.service && systemctl enable --now builder-app.service && systemctl is-enabled builder-app.service && systemctl is-active builder-app.service",
        "description": "Install and start the application service",
        "timeout": 120000
      },
      "output": "enabled\nactive\n",
      "is_error": false,
      "read_only": false,
      "started_after_ms": 26967,
      "duration_ms": 690
    }
  ],
  "timing": {
    "total_duration_ms": 27658,
    "model_rounds": [
      {
        "index": 1,
        "started_after_ms": 0,
        "duration_ms": 3027,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 136,
          "cache_read_tokens": 2393,
          "cache_creation_tokens": 0,
          "cost_usd": 0.00021166
        }
      },
      {
        "index": 2,
        "started_after_ms": 3227,
        "duration_ms": 2383,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 180,
          "cache_read_tokens": 2393,
          "cache_creation_tokens": 216,
          "cost_usd": 0.00031846
        }
      },
      {
        "index": 3,
        "started_after_ms": 5831,
        "duration_ms": 9783,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 649,
          "cache_read_tokens": 2609,
          "cache_creation_tokens": 1584,
          "cost_usd": 0.00122758
        }
      },
      {
        "index": 4,
        "started_after_ms": 15620,
        "duration_ms": 8161,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 973,
          "cache_read_tokens": 4193,
          "cache_creation_tokens": 719,
          "cost_usd": 0.00143181
        }
      },
      {
        "index": 5,
        "started_after_ms": 23792,
        "duration_ms": 3173,
        "status": "completed",
        "usage": {
          "input_tokens": 3,
          "output_tokens": 163,
          "cache_read_tokens": 4912,
          "cache_creation_tokens": 992,
          "cost_usd": 0.00054244
        }
      }
    ]
  }
}