Remote compact consistently fails for a long GPT-5.5 session and blocks thread continuation
Resolved 💬 4 comments Opened Jun 29, 2026 by The-Martyr Closed Jun 29, 2026
What version of Codex CLI is running?
0.142.4
What subscription do you have?
ChatGPT Plus
Which model were you using?
gpt-5.5 (reasoning high)
What platform is your computer?
Linux h800-8-1 6.14.0-37-generic #37~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 20 10:25:38 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
What terminal emulator and version are you using (if applicable)?
Windows Terminal over SSH, TERM=xterm-256color
Codex doctor report
{
"schemaVersion": 1,
"generatedAt": "1782748186s since unix epoch",
"overallStatus": "warning",
"codexVersion": "0.142.4",
"checks": {
"app_server.status": {
"id": "app_server.status",
"category": "app-server",
"status": "ok",
"summary": "background server is not running",
"details": {
"control socket": "/home/ubuntu/.codex/app-server-control/app-server-control.sock",
"daemon state dir": "/home/ubuntu/.codex/app-server-daemon",
"mode": "ephemeral",
"pid file": "/home/ubuntu/.codex/app-server-daemon/app-server.pid (missing)",
"settings": "/home/ubuntu/.codex/app-server-daemon/settings.json (missing)",
"status": "not running",
"update-loop pid file": "/home/ubuntu/.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/ubuntu/.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/ubuntu/.codex",
"config.toml": "/home/ubuntu/.codex/config.toml",
"config.toml parse": "ok",
"cwd": "/home/ubuntu",
"enabled feature flags": "shell_tool, unified_exec, shell_snapshot, terminal_resize_reflow, sqlite, hooks, enable_request_compression, multi_agent, apps, tool_search_always_defer_mcp_tools, tool_suggest, plugins, in_app_browser, browser_use, browser_use_full_cdp_access, browser_use_external, computer_use, plugin_sharing, image_generation, resize_all_images, skill_mcp_dependency_install, mentions_v2, steer, guardian_approval, goals, collaboration_modes, tool_call_mcp_elicitation, personality, fast_mode, tui_app_server, auto_compaction, remote_compaction_v2, workspace_dependencies",
"feature flag overrides": "none",
"feature flags enabled": "33",
"log dir": "/home/ubuntu/.codex/log",
"mcp servers": "0",
"model": "gpt-5.5",
"model provider": "openai",
"sqlite home": "/home/ubuntu/.codex"
},
"remediation": null,
"durationMs": 0
},
"git.environment": {
"id": "git.environment",
"category": "git",
"status": "ok",
"summary": "git version 2.43.0",
"details": {
"PATH git #1": "/usr/bin/git",
"PATH git #2": "/bin/git",
"PATH git entries": "2",
"git build options": "git version 2.43.0; cpu: x86_64; no commit associated with this build; sizeof-long: 8; sizeof-size_t: 8; shell-path: /bin/sh",
"git exec path": "/usr/lib/git-core",
"git version": "git version 2.43.0",
"repo detected": "false",
"selected git": "/usr/bin/git"
},
"remediation": null,
"durationMs": 38
},
"installation": {
"id": "installation",
"category": "install",
"status": "ok",
"summary": "installation looks consistent",
"details": {
"PATH codex #1": "/home/ubuntu/.nvm/versions/node/v24.15.0/bin/codex",
"current executable": "/home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
"install context": "npm (package /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /home/ubuntu/.nvm/versions/node/v24.15.0/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/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex",
"npm update target": "/home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex"
},
"remediation": null,
"durationMs": 80
},
"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": 70
},
"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": 1372
},
"runtime.provenance": {
"id": "runtime.provenance",
"category": "runtime",
"status": "ok",
"summary": "running npm on linux-x86_64",
"details": {
"commit": "unknown",
"current executable": "/home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin/codex",
"install method": "npm (package /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl, bin /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/bin, resources /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-resources, path /home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex/node_modules/@openai/codex-linux-x64/vendor/x86_64-unknown-linux-musl/codex-path)",
"platform": "linux-x86_64",
"version": "0.142.4"
},
"remediation": null,
"durationMs": 0
},
"runtime.search": {
"id": "runtime.search",
"category": "search",
"status": "ok",
"summary": "search is OK (bundled)",
"details": {
"search command": "/home/ubuntu/.nvm/versions/node/v24.15.0/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/ubuntu/.codex/tmp/arg0/codex-arg02P3EWk/codex-linux-sandbox",
"execve wrapper helper": "/home/ubuntu/.codex/tmp/arg0/codex-arg02P3EWk/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/ubuntu/.codex (dir)",
"active rollout files": "24 files, 220529437 total bytes, 9188726 average bytes",
"archived rollout files": "4 files, 16411693 total bytes, 4102923 average bytes",
"goals DB": "/home/ubuntu/.codex/goals_1.sqlite (file)",
"goals DB integrity": "ok",
"log DB": "/home/ubuntu/.codex/logs_2.sqlite (file)",
"log DB integrity": "ok",
"log dir": "/home/ubuntu/.codex/log (dir)",
"memories DB": "/home/ubuntu/.codex/memories_1.sqlite (file)",
"memories DB integrity": "ok",
"sqlite home": "/home/ubuntu/.codex (dir)",
"state DB": "/home/ubuntu/.codex/state_5.sqlite (file)",
"state DB integrity": "ok"
},
"remediation": null,
"durationMs": 199
},
"state.rollout_db_parity": {
"id": "state.rollout_db_parity",
"category": "threads",
"status": "warning",
"summary": "rollout files and state DB thread inventory differ",
"details": {
"default model provider": "openai",
"rollout DB active files": "24",
"rollout DB active rows": "24",
"rollout DB archive mismatches": "0",
"rollout DB archived files": "4",
"rollout DB archived rows": "3",
"rollout DB duplicate DB paths": "0",
"rollout DB duplicate rollout thread id sample": "019e7d0a-0aaf-7952-aacf-1d19d80617ea",
"rollout DB duplicate rollout thread ids": "1",
"rollout DB malformed file names": "0",
"rollout DB missing active rows": "0",
"rollout DB missing archived rows": "1",
"rollout DB missing archived sample": "/home/ubuntu/.codex/archived_sessions/rollout-2026-05-31T07-57-50-019e7d0a-0aaf-7952-aacf-1d19d80617ea.jsonl",
"rollout DB model providers": "openai=16, codex=10, mirror=1",
"rollout DB rows": "27",
"rollout DB scan cap reached": "false",
"rollout DB scan errors": "0",
"rollout DB sources": "cli=13, vscode=11, subagent:other=2, subagent:thread_spawn=1",
"rollout DB stale rows": "0"
},
"issues": [
{
"severity": "warning",
"cause": "rollout files are missing from the state DB",
"measured": "0 active, 1 archived",
"expected": "every rollout file has a matching threads row",
"remedy": null,
"fields": []
},
{
"severity": "warning",
"cause": "duplicate thread inventory entries found",
"measured": "1 duplicate rollout thread ids, 0 duplicate DB paths",
"expected": "one rollout path and thread id per thread",
"remedy": "Attach the doctor report to a bug report so support can inspect samples.",
"fields": []
}
],
"remediation": null,
"durationMs": 2523
},
"system.environment": {
"id": "system.environment",
"category": "system",
"status": "ok",
"summary": "OS language C",
"details": {
"EDITOR": "not set",
"LANG": "C.UTF-8",
"VISUAL": "not set",
"os": "Ubuntu 24.4.0 (noble) [64-bit]",
"os language": "C",
"os type": "Ubuntu",
"os version": "24.4.0"
},
"remediation": null,
"durationMs": 14
},
"terminal.env": {
"id": "terminal.env",
"category": "terminal",
"status": "ok",
"summary": "terminal metadata was detected",
"details": {
"SSH_CLIENT": "present",
"SSH_CONNECTION": "present",
"SSH_TTY": "present",
"TERM": "xterm-256color",
"color output": "enabled",
"effective locale": "C.UTF-8",
"stderr is terminal": "true",
"stdin is terminal": "true",
"stdout is terminal": "true",
"terminal": "unknown",
"terminal size": "176x57"
},
"remediation": null,
"durationMs": 0
},
"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": "cwd",
"terminal title project value": "ubuntu",
"terminal title source": "default"
},
"remediation": null,
"durationMs": 0
},
"updates.status": {
"id": "updates.status",
"category": "updates",
"status": "warning",
"summary": "update configuration is locally consistent",
"details": {
"cached latest version": "0.142.4",
"check for update on startup": "true",
"last checked at": "2026-06-29T11:27:55.753926338Z",
"latest version probe": "curl: (28) Resolving timed out after 5000 milliseconds",
"npm update target": "/home/ubuntu/.nvm/versions/node/v24.15.0/lib/node_modules/@openai/codex",
"update action": "npm install -g @openai/codex",
"version cache": "/home/ubuntu/.codex/version.json"
},
"remediation": null,
"durationMs": 5084
}
}
}What issue are you seeing?
A long Codex CLI thread can no longer continue because every request triggers remote compaction, and the remote compact task consistently fails.
Before the first failure, /status showed:
Context window: 13% left (310K used / 353K)The first compaction attempt failed with:
Error running remote compact task: Selected model is at capacity. Please try a different model.Subsequent attempts failed with:
Falling back from WebSockets to HTTPS transport.
stream disconnected before completionThe HTTPS fallback also failed:
Error running remote compact task: stream disconnected before completionRequest IDs:
a3152a70-cac5-404d-9b73-2d6b1d922e29
d4d30398-caa3-4104-ae23-aac921919a1e
3bb4cfab-d26c-4a1a-82fa-a4626f297751After the first failed compact attempt, the Context window row disappeared from /status, although the thread ID remained unchanged.
The same GPT-5.5 model works normally in a new thread. Only this existing long thread is blocked because it must complete remote compaction before it can process another request.
Affected thread:
019ed8bf-0b19-7af1-bbd8-3d3f9e6dbc5bThe session logs and diagnostics have already been uploaded through /feedback.
What steps can reproduce the bug?
Uploaded thread: 019ed8bf-0b19-7af1-bbd8-3d3f9e6dbc5b
What is the expected behavior?
Remote compaction should complete successfully, reduce the thread's context usage, and allow the existing thread to continue using GPT-5.5.
A transient capacity or transport error should be retried safely without making the thread permanently unusable. The context usage information should also remain visible in /status after a failed compact attempt.
Additional information
Codex CLI version: 0.142.4
Account type: ChatGPT Plus
Model: gpt-5.5, reasoning high
Affected thread: 019ed8bf-0b19-7af1-bbd8-3d3f9e6dbc5b
codex doctor reported:
16 ok · 1 idle · 1 notes · 1 warn · 0 fail degraded
The following checks passed:
- State databases are healthy
- Authentication is configured
- WebSocket handshake succeeds with HTTP 101
- Active provider endpoints are reachable
- Codex CLI is on the latest available version
The thread inventory warning reported by codex doctor refers to a different thread ID:
019e7d0a-0aaf-7952-aacf-1d19d80617ea
The affected thread contains important ongoing work, so switching models or starting a new thread is not an adequate workaround.
The full Codex logs, doctor report, rollout JSONL, and auto-review rollout were already uploaded using /feedback.
This issue has 4 comments on GitHub. Read the full discussion on GitHub ↗