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Codex CLI Bridge

A skill that turns your CLAUDE.md into AGENTS.md and wraps OpenAI Codex CLI calls so Claude Code and Codex work together.

Dev & CodingIntermediate★ 856⑂ 171AI score 8/10Last updated: Nov 12, 2025

What it does

  • Scans CLAUDE.md plus .claude/skills, .claude/agents, and documentation/ to generate an AGENTS.md using file-path references instead of duplicated content.
  • Provides Codex CLI execution rules: analysis with gpt-5 + read-only sandbox, edits with gpt-5-codex + workspace-write, optional web search, and session resume.
  • Enforces always codex exec, avoiding the classic "stdout is not a terminal" failure.
  • Documents each Claude Skill for Codex users (prompt-reference vs. direct Python script execution).

Who it's for

  • Developers and teams running both Claude Code and OpenAI Codex CLI.
  • Repos shared across multiple AI coding agents.
  • Anyone standardizing on the AGENTS.md specification.

Examples

  1. "Generate AGENTS.md for this project" → verifies Codex CLI → parses CLAUDE.md → writes AGENTS.md at the repo root.
  2. "Use Codex to analyze this codebase for security vulnerabilities" → runs codex exec -m gpt-5 -s read-only ....
  3. "Use Codex to refactor main.py for better async patterns" → runs codex exec -m gpt-5-codex -s workspace-write ..., then codex exec resume --last to continue.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/alirezarezvani/claude-code-skill-factory/HEAD/generated-skills/codex-cli-bridge/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the generated-skills/codex-cli-bridge folder from the GitHub repo alirezarezvani/claude-code-skill-factory into my ~/.claude/skills/codex-cli-bridge/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/alirezarezvani/claude-code-skill-factory.git /tmp/ccsf && cp -r /tmp/ccsf/generated-skills/codex-cli-bridge ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Install Codex CLI and verify: codex --version (v0.48.0 or newer recommended).
  2. Authenticate: codex login.
  3. Clone the repo: git clone https://github.com/alirezarezvani/claude-code-skill-factory.git
  4. Copy the skill: cp -r claude-code-skill-factory/generated-skills/codex-cli-bridge ~/.claude/skills/
  5. Confirm SKILL.md and the Python helper scripts are present: ls ~/.claude/skills/codex-cli-bridge
  6. Restart Claude Code and try "Generate AGENTS.md for this project".
  7. If the project has no CLAUDE.md, run /init first.
View source on GitHub ↗License: MIT