codex

A Claude Code plugin that lets users call Codex, an OpenAI coding agent, from within Claude Code.

In plain words
What is it for?
Code reviews and delegating coding tasks to Codex from Claude Code.
Why use it?
It provides a way to ask Codex to review code or handle delegated tasks without leaving Claude Code.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add Kenmege/codex-claude-companion
agentmods
npx agentmods add plugins/kenmege/codex-claude-companion/codex
Clone the repo
git clone --depth 1 https://github.com/Kenmege/codex-claude-companion

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

codex scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to codex — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/codex/.claude-plugin/plugin.json · 9 lines

What it actually says

{
  "name": "codex",
  "version": "1.0.4",
  "description": "Use Codex from Claude Code to review code or delegate tasks.",
  "author": {
    "name": "OpenAI"
  }
}
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 9 lines scan A 51994fc142fc

Subscribe to this mod's changes

codex is a plugin published in the GitHub repository Kenmege/codex-claude-companion (2 stars, last pushed 6d ago), licensed Apache-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 100% identical to codex, differing in 2 lines, and is treated as a copy.

Related

Other plugins, from other repositories

aidd-context

Knowledge production: project bootstrap, project init, context generation, mermaid diagrams, learn, discovery.

ai-driven-dev/framework · not measured

openoutreach marketplace

The OpenOutreach plugin for Claude Code — find B2B leads that fit, with the reason written out.

eracle/OpenOutreach · not measured

monorepo-extras

Monorepo extras pack.

eugenelim/agent-ready-repo · not measured

milestone-driver

Drives a GitHub milestone to completion: triages each issue for design gaps + dependency order up front, then for each buildable issue finds the root cause (or parks it), dispatches a TDD implementer subagent, runs unit + E2E tests + code review, opens a PR, and auto-merges issues on CI green. The whole loop sits…

kenmulford/milestone-driver · not measured

finding-unknowns

Surface your unknowns (unknown unknowns / unknown knowns) before, during, and after implementation — eight lightweight techniques, Cartographer mode (a quadrant-coverage-gated, regret-weighted interview backed by a lifecycle-persistent unknowns ledger), and four companion agents: blindspot-scout, prototype-smith…

baizhiyuan/finding-unknowns-skill · not measured

fable-to-opus

An adapt-first playbook that helps Opus (or any Claude model) pick up the work habits that made Fable effective — render-level verification, hypothesis-driven debugging, delegation guards, input fidelity, confirm-before-irreversible, and execution rhythm. It does NOT auto-inject rules or fake model capability. Its…

silobust-hash/fable-to-opus · not measured