Codex Rules plugin for Codex
Inject project rule files into Codex context through lifecycle hooks.
How to install Codex Rules in Codex
The repo has a Codex plugin manifest (.codex-plugin/plugin.json) but no marketplace file, so there's no one-line install. Follow the install steps in the repo README.
What it contains
The plugin manifest doesn't list components inline. See the repo.
Example prompts from the manifest
- Show which project rules are being injected here.
- Explain why this file matched project rules.
- Disable Codex Rules for this session.
About this listing
Codex Rules is a community plugin on GitHub by code-yeongyu, tagged codex-plugin. It passed the CodexStacks quality filter (at least 10 stars, pushed in the last 180 days, not a fork, has a description and a manifest or README). OpenAI hasn't reviewed it and we haven't tested it. The manifest says version 0.1.0. It's one of 79 listings in the Developer Tools category.
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Codex Rules FAQ
How do I install Codex Rules in Codex?
It has a Codex plugin manifest but no marketplace file, so there's no one-line install. Follow the install steps in the repo README.
Is Codex Rules an official Codex plugin?
No. Codex Rules is a community repo on GitHub by code-yeongyu. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it and we haven't tested it, so read the code before you install it.
What does Codex Rules include?
The plugin manifest doesn't list components inline. See the repo.
Details
- Type
- Plugin
- Category
- Developer Tools
- Source
- Community
- Author
- Yeongyu Kim
- Version
- 0.1.0
- License
- MIT
- GitHub stars
- 15 (at last sync)
- Last push
- 2026-08-28
- Manifest
.codex-plugin/plugin.json- GitHub topics
- agents-md, context-injection, hooks, rules, typescript
- Source
- https://github.com/code-yeongyu/codex-rules
- Listed via
- GitHub topic codex-plugin
- Tested by CodexStacks
- Not yet
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Markdown
[](https://codexstacks.com/p/codex-rules/)HTML
<a href="https://codexstacks.com/p/codex-rules/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>Embed card (static HTML and inline CSS, no JavaScript). Preview:
<a href="https://codexstacks.com/p/codex-rules/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">Codex Rules</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex plugin</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Inject project rule files into Codex context through lifecycle hooks.</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[Codex Rules on CodexStacks](https://codexstacks.com/p/codex-rules/)**: Community Codex plugin.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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