›_ Codex Issues
Codex Issues / #24923

Codex Compact Error

Resolved 💬 2 comments Opened May 28, 2026 by RinLin-NYA Closed Jun 29, 2026
💡 Likely answer: A maintainer (etraut-openai, contributor) responded on this thread — see the highlighted reply below.

What version of Codex CLI is running?

codex-cli 0.134.0

What subscription do you have?

No Paid Subscriptions

Which model were you using?

gpt-5.5 && gpt-5.4-mini

What platform is your computer?

Linux 7.0.9-1-cachyos x86_64 x86_64

What terminal emulator and version are you using (if applicable)?

VS Code, Kitty, Konsole, Yakuake

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1779980027s since unix epoch",
  "overallStatus": "ok",
  "codexVersion": "0.134.0",
  "checks": {
    "app_server.status": {
      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/home/RinLin/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/home/RinLin/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/home/RinLin/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/home/RinLin/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/home/RinLin/.codex/app-server-daemon/app-server-updater.pid (missing)"
      },
      "remediation": null,
      "durationMs": 0
    },
    "auth.credentials": {
      "id": "auth.credentials",
      "category": "auth",
      "status": "ok",
      "summary": "auth is configured",
      "details": {
        "auth file": "/home/RinLin/.codex/auth.json",
        "auth storage mode": "File",
        "stored API key": "false",
        "stored ChatGPT tokens": "true",
        "stored agent identity": "false",
        "stored auth mode": "chatgpt"
      },
      "remediation": null,
      "durationMs": 0
    },
    "config.load": {
      "id": "config.load",
      "category": "config",
      "status": "ok",
      "summary": "config loaded",
      "details": {
        "CODEX_HOME": "/home/RinLin/.codex",
        "config.toml": "/home/RinLin/.codex/config.toml",
        "config.toml parse": "ok",
        "cwd": "/home/RinLin/Git/Ushio-Prober-Phigros",
        "enabled feature flags": "shell_tool, unified_exec, shell_snapshot, terminal_resize_reflow, sqlite, hooks, enable_request_compression, multi_agent, apps, tool_suggest, plugins, in_app_browser, browser_use, browser_use_external, computer_use, plugin_sharing, image_generation, skill_mcp_dependency_install, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, personality, fast_mode, tui_app_server, workspace_dependencies",
        "feature flag overrides": "none",
        "feature flags enabled": "27",
        "log dir": "/home/RinLin/.codex/log",
        "mcp servers": "0",
        "model": "gpt-5.4-mini",
        "model provider": "openai",
        "sqlite home": "/home/RinLin/.codex"
      },
      "remediation": null,
      "durationMs": 0
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/home/RinLin/.nvm/versions/node/v24.14.1/bin/codex",
        "current executable": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install context": "npm (package /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "managed by bun": "false",
        "managed by npm": "true",
        "managed package root": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex",
        "npm update target": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex"
      },
      "remediation": null,
      "durationMs": 59
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "ok",
      "summary": "no MCP servers configured",
      "details": {},
      "remediation": null,
      "durationMs": 0
    },
    "network.env": {
      "id": "network.env",
      "category": "network",
      "status": "ok",
      "summary": "network-related environment looks readable",
      "details": {
        "proxy env vars": "none"
      },
      "remediation": null,
      "durationMs": 0
    },
    "network.provider_reachability": {
      "id": "network.provider_reachability",
      "category": "reachability",
      "status": "ok",
      "summary": "active provider endpoints are reachable over HTTP",
      "details": {
        "ChatGPT base URL": "https://chatgpt.com/backend-api/ reachable (HTTP 403)",
        "reachability mode": "ChatGPT auth"
      },
      "remediation": null,
      "durationMs": 1055
    },
    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "1 IPv4, 0 IPv6, first IPv4",
        "auth mode": "chatgpt",
        "connect timeout": "15000 ms",
        "endpoint": "wss://chatgpt.com/backend-api/<redacted>",
        "handshake result": "HTTP 101 Switching Protocols",
        "model provider": "openai",
        "models etag present": "true",
        "provider name": "OpenAI",
        "proxy env vars": "none",
        "reasoning header": "false",
        "server model present": "false",
        "supports websockets": "true",
        "wire API": "responses"
      },
      "remediation": null,
      "durationMs": 1446
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running npm on linux-x86_64",
      "details": {
        "commit": "unknown",
        "current executable": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
        "install method": "npm (package /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
        "platform": "linux-x86_64",
        "version": "0.134.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search is OK (bundled)",
      "details": {
        "search command": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path/rg",
        "search command readiness": "file exists",
        "search provider": "bundled"
      },
      "remediation": null,
      "durationMs": 0
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
        "approval policy": "OnRequest",
        "codex-linux-sandbox helper": "/home/RinLin/.codex/tmp/arg0/codex-arg0cVvHbt/codex-linux-sandbox",
        "execve wrapper helper": "/home/RinLin/.codex/tmp/arg0/codex-arg0cVvHbt/codex-execve-wrapper",
        "filesystem sandbox": "restricted",
        "network sandbox": "restricted"
      },
      "remediation": null,
      "durationMs": 0
    },
    "state.paths": {
      "id": "state.paths",
      "category": "state",
      "status": "ok",
      "summary": "state paths and databases are inspectable",
      "details": {
        "CODEX_HOME": "/home/RinLin/.codex (dir)",
        "active rollout files": "2 files, 181462572 total bytes, 90731286 average bytes",
        "archived rollout files": "8 files, 443387765 total bytes, 55423470 average bytes",
        "goals DB": "/home/RinLin/.codex/goals_1.sqlite (file)",
        "goals DB integrity": "ok",
        "log DB": "/home/RinLin/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/home/RinLin/.codex/log (dir)",
        "sqlite home": "/home/RinLin/.codex (dir)",
        "state DB": "/home/RinLin/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok"
      },
      "remediation": null,
      "durationMs": 37
    },
    "terminal.env": {
      "id": "terminal.env",
      "category": "terminal",
      "status": "ok",
      "summary": "terminal metadata was detected",
      "details": {
        "COLORTERM": "truecolor",
        "SSH_CLIENT": "present",
        "SSH_CONNECTION": "present",
        "TERM_PROGRAM": "vscode",
        "VSCODE_IPC_HOOK_CLI": "present",
        "color output": "enabled",
        "effective locale": "en_US.UTF-8",
        "stderr is terminal": "true",
        "stdin is terminal": "true",
        "stdout is terminal": "true",
        "terminal": "VS Code",
        "terminal size": "95x24",
        "terminal version": "1.107.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "updates.status": {
      "id": "updates.status",
      "category": "updates",
      "status": "ok",
      "summary": "update configuration is locally consistent",
      "details": {
        "cached latest version": "0.134.0",
        "check for update on startup": "true",
        "last checked at": "2026-05-28T08:37:09.233245563Z",
        "latest version": "0.134.0",
        "latest version status": "current version is not older",
        "npm update target": "/home/RinLin/.nvm/versions/node/v24.14.1/lib/node_modules/@openai/codex",
        "update action": "npm install -g @openai/codex",
        "version cache": "/home/RinLin/.codex/version.json"
      },
      "remediation": null,
      "durationMs": 1215
    }
  }
}

What issue are you seeing?

The session compaction is unsuccessful when a session context reached the maximum context limit of a model, and both codex-cli and codex vscode plugin shows this error:

Error running remote compact task: stream disconnected before completion: unknown variant auto, expected high or original at line 1 column 967531

What steps can reproduce the bug?

  1. Open Codex via running codex on any terminal
  2. Resume a session which reached the maximum context limit
  3. Run /compact manually

What is the expected behavior?

The context should be compacted correctly and the work can be continue.

Additional information

_No response_

View original on GitHub ↗

2 Comments

xzltc · 3 months ago

same error
Error running remote compact task: stream disconnected before completion: unknown variant auto, expected high or original at line 1 column 72088

etraut-openai contributor · 1 month ago

Thanks for reporting this problem. Until recently, Codex used a separate endpoint and server-side logic for compaction. We recently switched to a more robust approach where the compaction logic is moved locally using the same endpoint as normal turns. This eliminates "remote compaction" errors and increases the stability and reliability of compaction operations. If you see further problems with compaction, please use /feedback and open a new bug report.