add-codex

65 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.

By nanocoai/nanoclaw (GitHub) · coding · 31,103 stars · scanned at commit df750f6

Use Codex (OpenAI's codex app-server) as a full agent provider — planning, tool orchestration, MCP tools, server-side history, session resume — alongside or instead of Claude. ChatGPT subscription or OpenAI API key, vault-only via the selected gateway. Per-group via `ncl groups config update --provider codex`. Distinct from using OpenAI as an MCP tool (where Claude remains the planner).

Works with any agent that supports SKILL.md skills.

What this skill can do

Can call paid AI services billed to you

This is disclosed by the author in the skill's SKILL.md or README.

Found in 2 places.

.claude/skills/add-codex/REMOVE.md, line 72The ChatGPT/OpenAI secret in the OneCLI vault grants nothing once the provider is gone. To remove it: `onecli secrets list`, then `onecli secrets delete --id <i
.claude/skills/add-codex/payload/src/provider-contracts/codex.ts, line 9api: 'https://api.openai.com',

Runs commands on your computer

The author does not mention this. Expected for a coding skill.

Found in 7 places.

.claude/skills/add-codex/SKILL.md, line 141ncl groups config update --id <group-id> --provider codex
.claude/skills/add-codex/SKILL.md, line 162pnpm exec tsx setup/index.ts --step set-env -- --key DEFAULT_AGENT_PROVIDER --value codex
.claude/skills/add-codex/payload/container/agent-runner/src/providers/codex-app-server.ts, line 3import { spawn, type ChildProcess } from 'child_process';

Show 4 more

.claude/skills/add-codex/payload/setup/providers/codex.test.ts, line 14vi.mock('child_process', () => ({
.claude/skills/add-codex/payload/setup/providers/codex.ts, line 7import { spawn, spawnSync } from 'child_process';
.claude/skills/add-codex/payload/setup/providers/codex.ts, line 138const codexCheck = spawnSync('codex', ['--version'], { encoding: 'utf-8', stdio: ['ignore', 'pipe', 'pipe'] });
.claude/skills/add-codex/payload/setup/providers/codex.ts, line 237const codexCheck = spawnSync('codex', ['--version'], { encoding: 'utf-8', stdio: ['ignore', 'pipe', 'pipe'] });

Downloads and installs other software

The author does not mention this.

Found in 1 place.

.claude/skills/add-codex/payload/setup/providers/codex.ts, line 142'The Codex CLI is not installed on this machine. Install it with `npm install -g @openai/codex`, then re-run setup — or choose the API key option instead.',

Changes files outside its own folder

The author does not mention this.

Found in 1 place.

.claude/skills/add-codex/payload/src/providers/codex-agents-md.ts, line 45'Skills YOU author or install yourself go in `~/.codex/skills/<name>/SKILL.md` — persistent across sessions and discovered by Codex automatically. Never write s

Safer alternatives

Low-risk skills in the same category (coding) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'add-codex' ] || [ -L ~/.agents/skills/'add-codex' ]; then echo 'A skill folder named add-codex already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/nanocoai/nanoclaw' "$d" && git -C "$d" checkout --quiet 'df750f67ab4dffbd28a30d30f06560e82a6f450b' -- '.claude/skills/add-codex' && mkdir -p ~/.agents/skills && cp -R "$d"/'.claude/skills/add-codex' ~/.agents/skills/'add-codex' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'add-codex' ~/.claude/skills/'add-codex' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-11	`df750f6`	65
2026-11-08	`5356b6c`	65
2026-11-07	`5356b6c`	65