Codex Brainstorm

by sd0xdev

Codex Brainstorm is an AI Engineering skill for Claude Code, published by sd0xdev in sd0x-harness.

188 stars24 forkson sd0xdev/sd0x-harnessAdded 2026/09/06Repository updated 2026/09/05

View source on GitHub Download repo ZIP

agent-harnessclaude-codeclaude-code-plugincodexharness-engineeringskills

Install in seconds

Install Codex Brainstorm

Copy Codex Brainstorm into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/sd0xdev/sd0x-harness/tree/main/skills/codex-brainstorm ~/.claude/skills/codex-brainstorm

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/sd0xdev/sd0x-harness.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/codex-brainstorm/SKILL.md in sd0xdev/sd0x-harness
Installs to: ~/.claude/skills/codex-brainstorm
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 3278 skills

What Codex Brainstorm does

Codex Brainstorm runs independent Claude and Codex research, then adversarial debate to compare solution options and feasibility. Use it for brainstorming, exhaustive enumeration, and final consensus with action items.

Codex Brainstorm is cataloged under AI Engineering on DirSkills. Codex Brainstorm comes from a repository tagged agent-harness, claude-code, claude-code-plugin, codex and harness-engineering.

Documentation

README

Excerpt

Codex Brainstorm Skill

Trigger

Keywords: brainstorm, exhaust possibilities, explore solutions, deep discussion, feasibility analysis, solution exploration, Nash equilibrium

When NOT to Use

Simple technical Q&A (answer directly)
Already have a clear solution (implement directly)
Only need code review (use /codex-review)

Core Principle

⚠️ Independent Research → Adversarial Debate → Nash Equilibrium ⚠️

Nash Equilibrium = Neither party can unilaterally change strategy to achieve a better outcome

Workflow

This is the opening of the README. Read the full README on GitHub.

Commands Codex Brainstorm provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/codex-review

Frequently asked about Codex Brainstorm

What else does sd0xdev publish alongside Codex Brainstorm?
Codex Brainstorm is one of 25 skills that DirSkills catalogs from sd0xdev/sd0x-harness, the repository it ships in. Its siblings there include Adr, Architecture Design and Ask. Each one is a separate skill with its own page in this directory, installs the same way Codex Brainstorm does, and is maintained by sd0xdev in that same repository. The rest of the collection is listed on the sd0xdev/sd0x-harness page.
How does Codex Brainstorm compare to other AI Engineering skills?
Codex Brainstorm ranks #2968 by stars among the 3278 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Codex Brainstorm against them. Open each page to compare what they document and how they install.