OpenAI's Codex CLI supports the SKILL.md standard, which means the same skills that work on Claude Code and OpenClaw also work on Codex. Here's how to set it up.
> Quick Answer: To install and use SKILL.md with OpenAI Codex, place skill files in `~/.codex/skills/` (personal) or `.codex/skills/` (project), then invoke them using `$` followed by the skill name in the Codex CLI, or allow automatic activation."}
Codex CLI skill paths
Personal skills: `~/.codex/skills/`
Project skills: `.codex/skills/`
```bash
mkdir -p ~/.codex/skills
```
Installing skills
The process is identical to other SKILL.md agents:
```bash
# From Agensi
unzip skill-name.zip -d ~/.codex/skills/
# From GitHub
git clone https://github.com/author/skill.git
cp -r skill ~/.codex/skills/skill-name
# From Claude Code (reuse existing skills)
cp -r ~/.claude/skills/code-reviewer ~/.codex/skills/
```
Invoking skills in Codex CLI
Codex CLI uses the `$` prefix for explicit skill invocation:
```
$code-reviewer review the changes in this PR
```
Or use the `/skills` selector to browse available skills.
Skills also activate automatically when your request matches the skill's description, just like in Claude Code.
Cross-agent compatibility
The SKILL.md format is the same everywhere. A skill downloaded from Agensi works on Codex CLI, Claude Code, OpenClaw, and Cursor without any changes. Install it once, copy it to each agent's skills directory, and you're set.
---
*Browse SKILL.md skills for Codex CLI and other agents on Agensi.*
