Atlas / Skills / openai / Codex Cli Runtime

Codex Cli RuntimeSAFE

skills/openai/codex-cli-runtime

Use Codex from Claude Code to review code or delegate tasks.

Verdict
SAFE
Grade
B
Trust score
89 /100
Version
—
Hosts
2 documented
License
Apache-2.0
Stars
34,399
01

Overview

Use Codex from Claude Code to review code or delegate tasks.

Read from source at commit 9c936ab7121aOBSERVED · 2026-10-20
Advertisement
02

Host compatibility

What the documentation claims. We have not run a compatibility test.

HostStatusNotes
claude-codementioned
codexmentioned
03

What it tells the agent

The instruction file, verbatim from the audited commit — this is the text the model reads, and the surface the audit's instruction layer examines. Quoted here so you can judge it without cloning anything.

---
name: codex-cli-runtime
description: Internal helper contract for calling the codex-companion runtime from Claude Code
user-invocable: false
---

# Codex Runtime

Use this skill only inside the `codex:codex-rescue` subagent.

Primary helper:
- `node "${CLAUDE_PLUGIN_ROOT}/scripts/codex-companion.mjs" task "<raw arguments>"`

Execution rules:
- The rescue subagent is a forwarder, not an orchestrator. Its only job is to invoke `task` once and return that stdout unchanged.
- Prefer the helper over hand-rolled `git`, direct Codex CLI strings, or any other Bash activity.
- Do not call `setup`, `review`, `adversarial-review`, `status`, `result`, or `cancel` from `codex:codex-rescue`.
- Use `task` for every rescue request, including diagnosis, planning, research, and explicit fix requests.
- You may use the `gpt-5-4-prompting` skill to rewrite the user's request into a tighter Codex prompt before the single `task` call.
- That prompt drafting is the only Claude-side work allowed. Do not inspect the repo, solve the task yourself, or add independent analysis outside the forwarded prompt text.
- Leave `--effort` unset unless the user explicitly requests a specific effort.
- Leave model unset by default. Add `--model` only when the user explicitly asks for one.
- Map `spark` to `--model gpt-5.3-codex-spark`.
- Default to a write-capable Codex run by adding `--write` unless the user explicitly asks for read-only behavior or only wants review, diagnosis, or research without edits.

Command selection:
- Use exactly one `task` invocation per rescue handoff.
- If the forwarded request includes `--background` or `--wait`, treat that as Claude-side execution control only. Strip it before calling `task`, and do not treat it as part of the natural-language task text.
- If the forwarded request includes `--model`, normalize `spark` to `gpt-5.3-codex-spark` and pass it through to `task`.
- If the forwarded request includes `--effort`, pass it through to `task`.
- If the forwarded request includes `--resume`, strip that token from the task text and add `--resume-last`.
- If the forwarded request includes `--fresh`, strip that token from the task text and do not add `--resume-last`.
- `--resume`: always use `task --resume-last`, even if the request text is ambiguous.
- `--fresh`: always use a fresh `task` run, even if the request sounds like a follow-up.
- `--effort`: accepted values are `none`, `minimal`, `low`, `medium`, `high`, `xhigh`.
- `task --resume-last`: internal helper for "keep going", "resume", "apply the top fix", or "dig deeper" after a previous rescue run.

Safety rules:
- Default to write-capable Codex work in `codex:codex-rescue` unless the user explicitly asks for read-only behavior.
- Preserve the user's task text as-is apart from stripping routing flags.
- Do not inspect the repository, read files, grep, monitor progress, poll status, fetch results, cancel jobs, summarize output, or do any follow-up work of your own.
- Return the stdout of the `task` command exactly as-is.
- If the Bash call fails or Codex cannot be invoked, return nothing.
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeNA
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
none-observed
Network
none-observed
Shell
none-observed
Dependencies
pinned
Secrets in source
none-found

Findings (0)

No findings outside the package's declared scope.

Gates applied: no_behavioural_pass.

Audited 2026-10-20 · audit v0.4.1 · source sha 9c936ab7121afull audit observations/trust-audit/skill/openai__codex-cli-runtime.json · Report an issue / request a re-scan
05

Audit history

Every audit this skill has had.

DateSourceVerdictGradeScoreChange
2026-10-209c936ab7121aSAFEB89first audit
06

Questions

What does the codex-cli-runtime — openai/codex-plugin-cc skill do?

Use Codex from Claude Code to review code or delegate tasks.

Is codex-cli-runtime — openai/codex-plugin-cc safe to install?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean skill reads B.

What can codex-cli-runtime — openai/codex-plugin-cc access on my machine?

The audit observed no filesystem, network or shell use at all in its source.

Which assistants does codex-cli-runtime — openai/codex-plugin-cc work with?

Its documentation mentions claude-code and codex. That is what the text claims, not a compatibility test we ran.

How current is this page?

The grade is for one exact copy of the source (9c936ab7121a), read on 2026-10-20. The repository is watched, and a new audit runs when it changes — this is the first audit.

Add this badge to your README

Shows this page's audit result and links back to it. It updates when the audit does.

ModelsAtlas audit badge

Markdown
[![ModelsAtlas audit: Codex Cli Runtime](https://modelsatlas.com/skills/openai/codex-cli-runtime/badge.svg)](https://modelsatlas.com/skills/openai/codex-cli-runtime/)

Not your listing, or something out of date? Claim or update your listing.

Advertisement