Agent skill

Codex Guide

Codex の使い方、CLI/app/IDE、rules・hooks・AGENTS.md・skills・subagents・config などを案内する。Codex や OpenAI 製品の仕様を答える前に必ず公式ドキュメントを確認し、rules/approval は codex execpolicy check で実検証すること。

MITAuto-check passedAgent Workflows

Install Codex Guide

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a claude-code

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

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide --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/K9i-0/ccpocket.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/codex-guide .claude/skills/codex-guide && 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/

Paste into Claude Code

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .claude/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/K9i-0/ccpocket.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/codex-guide .agents/skills/codex-guide && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .agents/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/K9i-0/ccpocket.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/codex-guide .cursor/skills/codex-guide && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .cursor/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/K9i-0/ccpocket.git --path .claude/skills/codex-guide

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/K9i-0/ccpocket.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/codex-guide .gemini/skills/codex-guide && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .gemini/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/K9i-0/ccpocket.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/codex-guide .github/skills/codex-guide && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .github/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add K9i-0/ccpocket --skill codex-guide -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install K9i-0/ccpocket codex-guide --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/K9i-0/ccpocket.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/codex-guide .opencode/skills/codex-guide && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "codex-guide" agent skill from https://github.com/K9i-0/ccpocket/tree/main/.claude/skills/codex-guide into .opencode/skills/codex-guide/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "codex-guide", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: codex-guide
GitHub stars: 1.1k
Token cost: ~475 tokens
SKILL.md length: 158 words
Files: 2 (incl. references)
Skills in repo: 17
Repo updated: Oct 3, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Works in 3 steps: まず公式 docs を探す → rules / execpolicy の相談なら必ず検証する → 実運用に近いコマンドで再確認する
Tasks that involve Subagents
SKILL.md covers この skill を使う場面, 基本方針, 標準ワークフロー and 特に注意すること, plus 2 more sections
Calls codex

What it does

Codex Guide is an agent skill from K9i-0/ccpocket. Codex の使い方、CLI/app/IDE、rules・hooks・AGENTS.md・skills・subagents・config などを案内する。Codex や OpenAI 製品の仕様を答える前に必ず公式ドキュメントを確認し、rules/approval は codex execpolicy check で実検証すること。

Its SKILL.md is about 480 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-sources.md`).

It sits in Agent Workflows, covering Subagents and Agent instruction files. It works with OpenAI. The repository describes itself as: Mobile client for Codex and Claude — control coding agents from your phone via WebSocket bridge. The licence is MIT.

When your agent uses it

Tasks that involve Subagents
Tasks that involve Agent instruction files

Example prompts

“/codex-guide”

Workflow steps

3 steps, taken from the step headings in SKILL.md.

まず公式 docs を探す
rules / execpolicy の相談なら必ず検証する
実運用に近いコマンドで再確認する

What it can do on your machine

Read from SKILL.md and the folder at commit 8354ffd. 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:
- codex
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 Guide loads about 475 tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 45 tokens; SKILL.md has 158 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~45
When it runs · the whole SKILL.md, loaded when a task matches: ~475
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~1.2k

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

The full file from K9i-0/ccpocket at commit 8354ffd, republished under its MIT licence (© K9i-0). 158 words, ~475 tokens.

Download SKILL.mdSave it as .claude/skills/codex-guide/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: codex-guide
description: Codex の使い方、CLI/app/IDE、rules・hooks・AGENTS.md・skills・subagents・config などを案内する。Codex や OpenAI 製品の仕様を答える前に必ず公式ドキュメントを確認し、rules/approval は `codex execpolicy check` で実検証すること。

Codex Guide

Codex の使い方や仕様を案内するときのガイド。

この skill を使う場面

ユーザーが Codex CLI / app / IDE extension の使い方を聞いたとき
rules, execpolicy, approvals, hooks, AGENTS.md, skills, subagents, MCP, config を説明するとき
Codex のモデル、設定、コマンド、slash command、運用方法を案内するとき
Codex について「本当にそういう仕様か」を確認したいとき

基本方針

記憶で断定しない。 まず OpenAI の公式 Codex docs を確認する。
仕様説明は一次情報優先。 非公式ブログや推測をベースにしない。
rules / approvals は docs だけで終わらせない。 codex execpolicy check で実際の判定を確認する。
コマンド挙動は再現確認する。 可能なら軽い実コマンドで allow / prompt / forbidden を確かめる。
変わりやすい情報は公式 docs hub から辿る。 直リンクが変わっていそうなら Codex docs トップから探し直す。

標準ワークフロー

1. まず公式 docs を探す

用途ごとに references/official-sources.md の該当ページを開く。

Codex 全体像: docs hub / CLI / Academy
設定: Config basics / advanced / reference / sample
approvals / rules: Rules
カスタマイズ: Skills / Subagents / AGENTS.md / Hooks / MCP
実践例: Academy / Use cases / openai/codex

2. rules / execpolicy の相談なら必ず検証する

変更提案前に、少なくとも以下を実行する。

bash

codex execpolicy check --pretty --rules <rules-file> -- <command...>

最低 2 パターン確認すること。

許可したいコマンド
止めたい、または prompt にしたいコマンド

部分許可を設計するときは、重なる rule も確認する。

3. 実運用に近いコマンドで再確認する

execpolicy check だけでなく、可能なら軽い実コマンドでも確認する。

例:

allow 想定の軽いコマンドを 1 本
prompt 想定の軽いコマンドを 1 本

特に注意すること

prefix_rule は複数一致する。最終判定は より厳しい decision が勝つ。
部分 allow を書いても、より広い prompt が同時一致すると最終的に prompt になる。
迷ったら「広く allow、危ないサブコマンドだけ prompt」か、「全部明示列挙」のどちらかで設計する。
match / not_match を書ける場面では書く。意図ミスの早期発見に使う。

返答のしかた

公式 docs を見てわかったことと、ローカルで検証したことを分けて書く。
推測が混じる場合は、それが推測だと明示する。
ルール提案時は、提案内容だけでなく「なぜその rule が最終判定になるか」も書く。

参照先

詳細な URL と用途は references/official-sources.md を見る。

Files

SKILL.md and 1 other file (references) in .claude/skills/codex-guide of K9i-0/ccpocket.

SKILL.md
references/official-sources.md

Open the folder on GitHubat commit 8354ffd

Compare with similar skills

Codex Guide 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 Guide compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Codex Guide this skillK9i-0/ccpocket	1.1k	—	~475	Automated safety check: Pass	MIT	4 days ago
Prime Agentwcygan/dotfiles	196	—	~1.8k	Automated safety check: Pass	None	4 days ago
Task Observerrebelytics/one-skill-to-rule-them-all	3.2k	1 repos	~12k	Automated safety check: Pass	CC-BY-4.0	5 days ago
Harness Agent Team Designerrevfactory/harness	9.1k	—	~4.5k	Automated safety check: Pass	Apache-2.0	9 days ago
Repo Task Proof LoopDenisSergeevitch/repo-task-proof-loop	730	—	~3.8k	Automated safety check: Pass	Apache-2.0	6 mo ago
Rules Distillationaffaan-m/ECC	274k	2 repos	~2.3k	Automated safety check: Pass	MIT	2 days ago

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Questions about Codex Guide

What does Codex Guide do?

When should I use Codex Guide?

Codex Guide fits situations like: tasks that involve Subagents; tasks that involve Agent instruction files.

How do I install Codex Guide in Claude Code?

Run `npx skills add K9i-0/ccpocket --skill codex-guide -a claude-code`. Or copy the skill folder (.claude/skills/codex-guide in K9i-0/ccpocket) into .claude/skills/codex-guide in your project. Claude Code loads it when a task matches its description.

How do I install Codex Guide in Codex?

Run `npx skills add K9i-0/ccpocket --skill codex-guide -a codex`. Or copy the skill folder (.claude/skills/codex-guide in K9i-0/ccpocket) into .agents/skills/codex-guide in your project. Codex loads it when a task matches its description.

Can I use Codex Guide 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 K9i-0/ccpocket --skill codex-guide -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-guide, .gemini/skills/codex-guide, .github/skills/codex-guide and .opencode/skills/codex-guide in your project.

What does Codex Guide need to run?

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

Does Codex Guide 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 Guide 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 Guide use?

Codex Guide is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Codex Guide use?

About 475 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 774 tokens, read only when the agent opens those files.

What are the alternatives to Codex Guide?

Skills that share tags, products or a category with Codex Guide: Prime Agent (wcygan/dotfiles, 196 stars), Task Observer (rebelytics/one-skill-to-rule-them-all, 3.2k stars), Harness Agent Team Designer (revfactory/harness, 9.1k stars) and Repo Task Proof Loop (DenisSergeevitch/repo-task-proof-loop, 730 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codex Guide?

K9i-0 (a GitHub user) maintains it in K9i-0/ccpocket, which has 1,082 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 3, 2026.

Source: K9i-0/ccpocket on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Codex Guide

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Codex Guide

この skill を使う場面

基本方針

標準ワークフロー

1. まず公式 docs を探す

2. rules / execpolicy の相談なら必ず検証する

3. 実運用に近いコマンドで再確認する

特に注意すること

返答のしかた

参照先

Files

Compare with similar skills

Similar skills

More from K9i-0/ccpocket

Related

Questions about Codex Guide