Claude Code mod
codex-corner
A boxing ring for Codex adversarial reviews: each review is a round, your crab against the Codex bot, with findings by severity, until the verdict is approve and the bot goes down. Rounds are kept per repo and branch; /codex-card prints the bout.
Install
/plugin marketplace add davidcoulson/crab-workshop
/plugin install codex-corner@crab-workshopMods install like plugins. Run /reload-plugins or start a new session to load it.
What it can access
- Reach
- L2Writes or runs: runs processes, reads mod state, persists state, draws
- Sees
- Bash calls
- Draws in
AbovePrompt- Hooks
session.starttool.callcommand.runui.render
From a static scan of the mod's code by awesome-claude-code-mods. It shows what the code asks for, not a security review.
How Claude Code mods work
- A mod is a plugin with a JavaScript or TypeScript module that runs inside Claude Code (version 2.1.287 or later). It can draw panes beside the transcript, a band above the prompt, buttons and toasts, restyle the spinner and tool rows, and watch or rewrite tool calls and prompts.
- It installs like any plugin: add its marketplace with /plugin marketplace add owner/repo, then /plugin install name@marketplace.
- Check what a mod can reach before installing: it runs with your permissions. Reach goes from drawing only, to reading files, to writing files or running processes, to the network. Run claude plugin validate on a clone to list its hooks and calls without running it.
- Turn one off from the Installed tab in /plugin, or start Claude Code with --safe-mode to skip every customization for a session.
Details
- Repository
- davidcoulson/crab-workshop
- Folder
plugins/codex-corner- Marketplace
crab-workshop- Author
- David Coulson
- License
- MIT
- Last updated
- 12 October 2026
- Listed in
- awesome-claude-code-mods
FAQ
What is codex-corner?
A boxing ring for Codex adversarial reviews: each review is a round, your crab against the Codex bot, with findings by severity, until the verdict is approve and the bot goes down. Rounds are kept per repo and branch; /codex-card prints the bout. It is a mod for Claude Code, from davidcoulson/crab-workshop on GitHub.
What can the codex-corner mod access?
Its widest reach is "writes or runs" (runs processes, reads mod state, persists state, draws). It sees Bash calls. It draws in AbovePrompt. Like any mod, it runs with your permissions.
How do I install codex-corner?
Inside Claude Code (v2.1.287 or later), run /plugin marketplace add davidcoulson/crab-workshop and then /plugin install codex-corner@crab-workshop.
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