contrarian plugin for Codex
Devil's advocate for coding agents. Stress-tests plans, architecture and decisions with a steel-man, an assumption audit, a pre-mortem and inversion, then gives severity-rated findings and a verdict.
How to install contrarian 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
- Use contrarian to stress-test this plan before we build it.
- Run a pre-mortem on this architecture: assume it failed in six months.
- Everyone agrees on this approach. Have contrarian argue the other side.
About this listing
contrarian is a community plugin on GitHub by aaddrick, 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 1.1.0. It's one of 79 listings in the Developer Tools category (category assigned by CodexStacks from the repo's topics and description).
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contrarian FAQ
How do I install contrarian 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 contrarian an official Codex plugin?
No. contrarian is a community repo on GitHub by aaddrick. 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 contrarian include?
The plugin manifest doesn't list components inline. See the repo.
Details
- Type
- Plugin
- Category
- Developer Tools (assigned by us)
- Source
- Community
- Author
- aaddrick
- Version
- 1.1.0
- License
- Unlicense
- GitHub stars
- 40 (at last sync)
- Last push
- 2026-10-07
- Manifest
.codex-plugin/plugin.json- GitHub topics
- agent-skill, agent-skills, ai-agents, architecture-review, claude-code, claude-code-plugin, claude-code-plugins, claude-code-skill, claude-code-skills, claude-code-subagents, claude-skills, coding-agents
- Source
- https://github.com/aaddrick/contrarian
- Website
- https://github.com/aaddrick/contrarian#readme
- Listed via
- GitHub topic codex-plugin
- Tested by CodexStacks
- Not yet
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For maintainers: badge and embeds
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Markdown
[](https://codexstacks.com/p/contrarian/)HTML
<a href="https://codexstacks.com/p/contrarian/"><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/contrarian/" 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">contrarian</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">Devil's advocate for coding agents. Stress-tests plans, architecture and decisions with a steel-man, an assumption…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>Markdown summary
**[contrarian on CodexStacks](https://codexstacks.com/p/contrarian/)**: Community Codex plugin.More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.
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