Agent skill

Codex CLI Runtime

by juanandresgs in juanandresgs/claude-ctrl

Internal helper contract for calling the codex-companion runtime from Claude Code

No licenceAuto-check passedAgent Workflows

Install Codex CLI Runtime

skills CLI
$ npx skills add juanandresgs/claude-ctrl --skill codex-cli-runtime -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install juanandresgs/claude-ctrl codex-cli-runtime --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/juanandresgs/claude-ctrl.git skills-src && mkdir -p .claude/skills && cp -r skills-src/sidecars/codex-review/skills/codex-cli-runtime .claude/skills/codex-cli-runtime && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codex-cli-runtime
GitHub stars
193
Used in
1 other repo
Token cost
~775 tokens
SKILL.md length
422 words
Files
1
Skills in repo
10
Repo updated
First seen
Licence
None found

At a glance

Internal helper contract for calling the codex-companion runtime from Claude Code

  • Agent Workflows work in your project
  • Calls node

What it does

Codex CLI Runtime is an agent skill from juanandresgs/claude-ctrl. Internal helper contract for calling the codex-companion runtime from Claude Code

Its SKILL.md is about 780 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows. It works with OpenAI. The repository describes itself as: DEPRECATED / UNMAINTAINED — historical reference only. Do not install or rely on this project.

When your agent uses it

  • Agent Workflows work in your project

Example prompts

  • “/codex-cli-runtime”

What it can do on your machine

Read from SKILL.md and the folder at commit dfbdd82. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • node

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Codex CLI Runtime loads about 775 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 422 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~25
When it runs · the whole SKILL.md, loaded when a task matches
~775

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 422 words (~775 tokens).

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

— opening of SKILL.md by juanandresgs
name
codex-cli-runtime
user-invocable
false

Read the full SKILL.md on GitHub

Files

Just SKILL.md in sidecars/codex-review/skills/codex-cli-runtime of juanandresgs/claude-ctrl.

Open the folder on GitHubat commit dfbdd82

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in juanandresgs/claude-ctrl, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Codex CLI Runtime next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codex CLI Runtime compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codex CLI Runtime this skilljuanandresgs/claude-ctrl1931 repos~775Automated safety check: PassNone
Install and Run Cogneetopoteretes/cognee32k1 repos~1kAutomated safety check: NotesApache-2.0
LLM Councilgcpdev/llm-council-skill4611 repos~1kAutomated safety check: NotesMIT
Codex with ChatGPT Planning LoopXiaoDuoYa/codex-with-chatgpt7.1k—~11kAutomated safety check: NotesMIT
Nagentdavidondrej/skills4.1k—~1.7kAutomated safety check: NotesMIT
Cao MCP Appsawslabs/cli-agent-orchestrator1.4k—~1.9kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Codex CLI Runtime

What does Codex CLI Runtime do?

Internal helper contract for calling the codex-companion runtime from Claude Code. Codex CLI Runtime is an agent skill from juanandresgs/claude-ctrl.

When should I use Codex CLI Runtime?

Codex CLI Runtime fits situations like: agent Workflows work in your project.

How do I install Codex CLI Runtime in Claude Code?

Run `npx skills add juanandresgs/claude-ctrl --skill codex-cli-runtime -a claude-code`. Or copy the skill folder (sidecars/codex-review/skills/codex-cli-runtime in juanandresgs/claude-ctrl) into .claude/skills/codex-cli-runtime in your project. Claude Code loads it when a task matches its description.

How do I install Codex CLI Runtime in Codex?

Run `npx skills add juanandresgs/claude-ctrl --skill codex-cli-runtime -a codex`. Or copy the skill folder (sidecars/codex-review/skills/codex-cli-runtime in juanandresgs/claude-ctrl) into .agents/skills/codex-cli-runtime in your project. Codex loads it when a task matches its description.

Can I use Codex CLI Runtime in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add juanandresgs/claude-ctrl --skill codex-cli-runtime -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codex-cli-runtime, .gemini/skills/codex-cli-runtime, .github/skills/codex-cli-runtime and .opencode/skills/codex-cli-runtime in your project.

What does Codex CLI Runtime need to run?

Going by SKILL.md and its folder, Codex CLI Runtime needs the command-line tools its instructions call (node).

Does Codex CLI Runtime access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Codex CLI Runtime safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codex CLI Runtime use?

No licence was found for Codex CLI Runtime or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Codex CLI Runtime use?

About 775 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Codex CLI Runtime?

Skills that share tags, products or a category with Codex CLI Runtime: Install and Run Cognee (topoteretes/cognee, 32k stars), LLM Council (gcpdev/llm-council-skill, 461 stars), Codex with ChatGPT Planning Loop (XiaoDuoYa/codex-with-chatgpt, 7.1k stars) and Nagent (davidondrej/skills, 4.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codex CLI Runtime?

juanandresgs (a GitHub user) maintains it in juanandresgs/claude-ctrl, which has 193 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on August 7, 2026.

Source: juanandresgs/claude-ctrl on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.