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Keep getting "websocket closed by server before response.completed" #28115
Description
What version of Codex CLI is running?
codex-cli 0.139.0
What subscription do you have?
Pro
Which model were you using?
gpt-5.5 medium
What platform is your computer?
Darwin 25.3.0 arm64 arm
What terminal emulator and version are you using (if applicable)?
tmux iTerm2
Codex doctor report
{
"schemaVersion": 1,
"generatedAt": "1781381192s since unix epoch",
"overallStatus": "ok",
"codexVersion": "0.139.0",
"checks": {
"app_server.status": {
"id": "app_server.status",
"category": "app-server",
"status": "ok",
"summary": "background server is not running",
"details": {
"control socket": "/Users/********/.codex/app-server-control/app-server-control.sock",
"daemon state dir": "/Users/********/.codex/app-server-daemon",
"mode": "ephemeral",
"pid file": "/Users/********/.codex/app-server-daemon/app-server.pid (missing)",
"settings": "/Users/********/.codex/app-server-daemon/settings.json (missing)",
"status": "not running",
"update-loop pid file": "/Users/********/.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/********/.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/********/.codex",
"config.toml": "/Users/********/.codex/config.toml",
"config.toml parse": "ok",
"cwd": "/Users/********/src/XXXXXXX-production-planning",
"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": "/Users/********/.codex/log",
"mcp servers": "0",
"model": "gpt-5.5",
"model provider": "openai",
"sqlite home": "/Users/********/.codex"
},
"remediation": null,
"durationMs": 0
},
"git.environment": {
"id": "git.environment",
"category": "git",
"status": "ok",
"summary": "git version 2.54.0",
"details": {
".git entry": "file -> /Users/********/src/XXXXXXX/.git/worktrees/XXXXXXX-production-planning",
"PATH git #1": "/opt/local/bin/git",
"PATH git #2": "/usr/bin/git",
"PATH git entries": "2",
"git branch": "feature/production-inventory-planning",
"git build options": "git version 2.54.0; cpu: arm64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /bin/sh; rust: disabled; feature: fsmonitor--daemon; gettext: enabled; libcurl: 8.19.0; zlib: 1.3.2; SHA-1: SHA1_DC; SHA-256: SHA256_BLK; default-ref-format: files; default-hash: sha1",
"git exec path": "/opt/local/libexec/git-core",
"git version": "git version 2.54.0",
"repo detected": "true",
"repo root": "/Users/********/src/XXXXXXX-production-planning",
"selected git": "/opt/local/bin/git"
},
"remediation": null,
"durationMs": 10
},
"installation": {
"id": "installation",
"category": "install",
"status": "ok",
"summary": "installation looks consistent",
"details": {
"PATH codex #1": "/Users/********/bin/codex",
"current executable": "/Users/********/bin/codex",
"install context": "other",
"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": "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 404)",
"reachability mode": "ChatGPT auth"
},
"remediation": null,
"durationMs": 295
},
"network.websocket_reachability": {
"id": "network.websocket_reachability",
"category": "websocket",
"status": "ok",
"summary": "Responses WebSocket handshake succeeded",
"details": {
"DNS": "2 IPv4, 2 IPv6, first IPv6",
"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": 683
},
"runtime.provenance": {
"id": "runtime.provenance",
"category": "runtime",
"status": "ok",
"summary": "running local build on macos-aarch64",
"details": {
"commit": "unknown",
"current executable": "/Users/********/bin/codex",
"install method": "other",
"platform": "macos-aarch64",
"version": "0.139.0"
},
"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": 3
},
"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/********/.codex/tmp/arg0/codex-arg0HGc5di/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/********/.codex (dir)",
"active rollout files": "35 files, 199135854 total bytes, 5689595 average bytes",
"archived rollout files": "0 files, 0 total bytes, 0 average bytes",
"goals DB": "/Users/********/.codex/goals_1.sqlite (file)",
"goals DB integrity": "ok",
"log DB": "/Users/********/.codex/logs_2.sqlite (file)",
"log DB integrity": "ok",
"log dir": "/Users/********/.codex/log (dir)",
"memories DB": "/Users/********/.codex/memories_1.sqlite (file)",
"memories DB integrity": "ok",
"sqlite home": "/Users/********/.codex (dir)",
"state DB": "/Users/********/.codex/state_5.sqlite (file)",
"state DB integrity": "ok"
},
"remediation": null,
"durationMs": 174
},
"state.rollout_db_parity": {
"id": "state.rollout_db_parity",
"category": "threads",
"status": "ok",
"summary": "rollout files and state DB thread inventory agree",
"details": {
"default model provider": "openai",
"rollout DB active files": "35",
"rollout DB active rows": "35",
"rollout DB archive mismatches": "0",
"rollout DB archived files": "0",
"rollout DB archived rows": "0",
"rollout DB duplicate DB paths": "0",
"rollout DB duplicate rollout thread ids": "0",
"rollout DB malformed file names": "0",
"rollout DB missing active rows": "0",
"rollout DB missing archived rows": "0",
"rollout DB model providers": "openai=35",
"rollout DB rows": "35",
"rollout DB scan cap reached": "false",
"rollout DB scan errors": "0",
"rollout DB sources": "vscode=18, cli=7, subagent:other=5, subagent:thread_spawn=5",
"rollout DB stale rows": "0"
},
"remediation": null,
"durationMs": 872
},
"system.environment": {
"id": "system.environment",
"category": "system",
"status": "ok",
"summary": "OS language en-US",
"details": {
"EDITOR": "set",
"LANG": "en_US.UTF-8",
"LESS": "set",
"PAGER": "set",
"VISUAL": "set",
"os": "Mac OS 26.3.1 [64-bit]",
"os language": "en-US",
"os type": "Mac OS",
"os version": "26.3.1"
},
"remediation": null,
"durationMs": 14
},
"terminal.env": {
"id": "terminal.env",
"category": "terminal",
"status": "ok",
"summary": "terminal metadata was detected",
"details": {
"COLORFGBG": "15;0",
"COLORTERM": "truecolor",
"TERM": "screen-256color",
"TERMINFO_DIRS entry": [
"/Applications/iTerm.app/Contents/Resources/terminfo (dir)",
"/usr/share/terminfo (dir)"
],
"TERM_PROGRAM": "iTerm2",
"color output": "disabled (stdout is not a terminal)",
"effective locale": "en_US.UTF-8",
"multiplexer": "tmux 3.6a",
"stderr is terminal": "true",
"stdin is terminal": "true",
"stdout is terminal": "false",
"terminal": "iTerm2",
"terminal size": "156x44",
"terminal version": "3.6.8",
"tmux allow-passthrough": "off",
"tmux client termname": "screen-256color",
"tmux client termtype": "iTerm2 3.6.8",
"tmux extended-keys": "off",
"tmux focus-events": "on",
"tmux set-clipboard": "external",
"tmux xterm-keys": "on"
},
"remediation": null,
"durationMs": 45
},
"terminal.title": {
"id": "terminal.title",
"category": "title",
"status": "ok",
"summary": "terminal title default",
"details": {
"terminal title activity": "true",
"terminal title items": "activity, project-name",
"terminal title project source": "git repo root",
"terminal title project value": "XXXXXXX-production...",
"terminal title source": "default"
},
"remediation": null,
"durationMs": 0
},
"updates.status": {
"id": "updates.status",
"category": "updates",
"status": "ok",
"summary": "update configuration is locally consistent",
"details": {
"cached latest version": "0.139.0",
"check for update on startup": "true",
"last checked at": "2026-06-13T03:19:22.865751Z",
"latest version": "0.139.0",
"latest version status": "current version is not older",
"update action": "manual or unknown",
"version cache": "/Users/********/.codex/version.json"
},
"remediation": null,
"durationMs": 326
}
}
}What issue are you seeing?
i had asked codex to regenerate a ui mockup, and it got stuck with "websocket closed by server before response.completed"
What steps can reproduce the bug?
Uploaded thread: 019ebf09-b52e-79a2-aeb7-c70ece56597f
What is the expected behavior?
A new ui mockup, with different sample data
Additional information
No response
Activity
github-actions commentedon Jun 13, 2026
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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