CODEX stops working for "■ Error running remote compact task: stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)"

[jerryfane]

What version of Codex CLI is running?

0.132.0

What subscription do you have?

Pro Lite

Which model were you using?

gpt-5.5

What platform is your computer?

Darwin 25.2.0 arm64 arm

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

cmux

Codex doctor report

{
  "schemaVersion": 1,
  "generatedAt": "1779304496s since unix epoch",
  "overallStatus": "ok",
  "codexVersion": "0.132.0",
  "checks": {
    "app_server.status": {
      "id": "app_server.status",
      "category": "app-server",
      "status": "ok",
      "summary": "background server is not running",
      "details": {
        "control socket": "/Users/jerryfane/.codex/app-server-control/app-server-control.sock",
        "daemon state dir": "/Users/jerryfane/.codex/app-server-daemon",
        "mode": "ephemeral",
        "pid file": "/Users/jerryfane/.codex/app-server-daemon/app-server.pid (missing)",
        "settings": "/Users/jerryfane/.codex/app-server-daemon/settings.json (missing)",
        "status": "not running",
        "update-loop pid file": "/Users/jerryfane/.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": "/Users/jerryfane/.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": "/Users/jerryfane/.codex",
        "config.toml": "/Users/jerryfane/.codex/config.toml",
        "config.toml parse": "ok",
        "cwd": "/Users/jerryfane/Desktop/repo/entmoot",
        "enabled feature flags": "shell_tool, unified_exec, shell_snapshot, terminal_resize_reflow, sqlite, memories, hooks, enable_request_compression, multi_agent, apps, tool_search, tool_suggest, plugins, plugin_hooks, 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, prevent_idle_sleep, workspace_dependencies",
        "feature flag overrides": "memories=true, goals=true, prevent_idle_sleep=true",
        "feature flags enabled": "31",
        "log dir": "/Users/jerryfane/.codex/log",
        "mcp servers": "1",
        "model": "gpt-5.5",
        "model provider": "openai",
        "sqlite home": "/Users/jerryfane/.codex"
      },
      "remediation": null,
      "durationMs": 0
    },
    "installation": {
      "id": "installation",
      "category": "install",
      "status": "ok",
      "summary": "installation looks consistent",
      "details": {
        "PATH codex #1": "/opt/homebrew/bin/codex",
        "current executable": "/opt/homebrew/bin/codex",
        "install context": "brew",
        "managed by bun": "false",
        "managed by npm": "false",
        "managed package root": "not set"
      },
      "remediation": null,
      "durationMs": 2
    },
    "mcp.config": {
      "id": "mcp.config",
      "category": "mcp",
      "status": "ok",
      "summary": "MCP configuration is locally consistent",
      "details": {
        "configured servers": "1",
        "disabled servers": "0",
        "streamable_http servers": "1"
      },
      "remediation": null,
      "durationMs": 1255
    },
    "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": 557
    },
    "network.websocket_reachability": {
      "id": "network.websocket_reachability",
      "category": "websocket",
      "status": "ok",
      "summary": "Responses WebSocket handshake succeeded",
      "details": {
        "DNS": "2 IPv4, 2 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": 1001
    },
    "runtime.provenance": {
      "id": "runtime.provenance",
      "category": "runtime",
      "status": "ok",
      "summary": "running brew on macos-aarch64",
      "details": {
        "commit": "unknown",
        "current executable": "/opt/homebrew/bin/codex",
        "install method": "brew",
        "platform": "macos-aarch64",
        "version": "0.132.0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "runtime.search": {
      "id": "runtime.search",
      "category": "search",
      "status": "ok",
      "summary": "search is OK (system)",
      "details": {
        "search command": "rg",
        "search command readiness": "ripgrep 15.1.0",
        "search provider": "system"
      },
      "remediation": null,
      "durationMs": 2
    },
    "sandbox.helpers": {
      "id": "sandbox.helpers",
      "category": "sandbox",
      "status": "ok",
      "summary": "sandbox configuration is readable",
      "details": {
        "approval policy": "OnRequest",
        "codex-linux-sandbox helper": "none",
        "execve wrapper helper": "/Users/jerryfane/.codex/tmp/arg0/codex-arg0xHCETl/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": "/Users/jerryfane/.codex (dir)",
        "active rollout files": "3119 files, 1493619597 total bytes, 478877 average bytes",
        "archived rollout files": "0 files, 0 total bytes, 0 average bytes",
        "log DB": "/Users/jerryfane/.codex/logs_2.sqlite (file)",
        "log DB integrity": "ok",
        "log dir": "/Users/jerryfane/.codex/log (dir)",
        "sqlite home": "/Users/jerryfane/.codex (dir)",
        "state DB": "/Users/jerryfane/.codex/state_5.sqlite (file)",
        "state DB integrity": "ok"
      },
      "remediation": null,
      "durationMs": 1807
    },
    "terminal.env": {
      "id": "terminal.env",
      "category": "terminal",
      "status": "ok",
      "summary": "terminal metadata was detected",
      "details": {
        "COLORTERM": "truecolor",
        "TERMINFO": "/Applications/cmux.app/Contents/Resources/terminfo (dir)",
        "TERM_PROGRAM": "ghostty",
        "color output": "enabled",
        "effective locale": "en_US.UTF-8",
        "stderr is terminal": "true",
        "stdin is terminal": "true",
        "stdout is terminal": "true",
        "terminal": "Ghostty",
        "terminal size": "215x57",
        "terminal version": "1.3.0-HEAD+9fa3ab0"
      },
      "remediation": null,
      "durationMs": 0
    },
    "updates.status": {
      "id": "updates.status",
      "category": "updates",
      "status": "ok",
      "summary": "update configuration is locally consistent",
      "details": {
        "cached latest version": "0.132.0",
        "check for update on startup": "true",
        "last checked at": "2026-05-20T11:04:25.338719Z",
        "latest version": "0.132.0",
        "latest version status": "current version is not older",
        "update action": "brew upgrade --cask codex",
        "version cache": "/Users/jerryfane/.codex/version.json"
      },
      "remediation": null,
      "durationMs": 3916
    }
  }
}

What issue are you seeing?

CODEX stops working for "■ Error running remote compact task: stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses/compact)"

What steps can reproduce the bug?

Uploaded thread: 019e3fe0-676a-7d01-a8dd-300ff94ed21e

What is the expected behavior?

It should keep working

Additional information

I'm running a 5h goal

[github-actions]

Potential duplicates detected. Please review them and close your issue if it is a duplicate.

• Codex gets stuck after "Error running remote compact task: stream disconnected before completion" #22309
• Keep running into "Error running remote compact task" #23050
• Error running remote compact task: stream disconnected before completion: error sending request for url #22449
• CLI remote compaction repeatedly fails and leaves resumed threads without task continuity #22335
• Codex App compact fails on PDF-heavy thread #23263

Powered by Codex Action

[etraut-openai]

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.