codex-brainstorm SKILL.md skillA

codex-brainstorm from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sd0xdev/sd0x-harness/codex-brainstorm@git:20260905.3d84d94

Pins git:20260905.3d84d94 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sd0xdev/sd0x-harness
Path
skills/codex-brainstorm/SKILL.md
Versions recorded
5
Latest version
git:20260905.3d84d94, committed Sep 5, 2026
First version recorded
Mar 5, 2026
Size
4,878 bytes
Repository stars
194
License
MIT

Adversarial brainstorming via Claude+Codex debate. Use when: exploring solutions, feasibility analysis, exhaustive enumeration. Not for: implementation (use feature-dev), architecture only (use codex-architect). Output: Nash equilibrium consensus + action items.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# 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

| Phase | Action                                                  | Output                      |
| ----- | ------------------------------------------------------- | --------------------------- |
| 1     | **Claude independent research** + analysis, forms Position A | Claude's optimal hypothesis |
| 2     | **Codex independent research** + analysis, forms Position B | Codex's optimal hypothesis  |
| 3     | Multi-round adversarial debate, mutual attacks          | Debate exchange record      |
| 4     | Check equilibrium, no further improvements possible     | Equilibrium or divergence   |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sd0xdev/sd0x-harness/codex-brainstorm@sha256:c2a0d22910faf0bd

The line at the top of this page pins the label git:20260905.3d84d94, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_yudasvs6rsi77plc.svg)](https://markdownregistry.com/a/art_yudasvs6rsi77plc)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Mar 5, 2026 and Sep 5, 2026, about one every 46 days.

versioncommittedcommitsizeaudit
git:20260905.3d84d94 latest2026-09-05 3d84d94 4,878 BA view · diff
git:20260319.7b83b522026-03-19 7b83b52 4,302 BA view · diff
git:20260309.0aecf292026-03-09 0aecf29 4,276 BA view · diff
git:20260305.3ae8b922026-03-05 3ae8b92 4,243 BA view · diff
git:20260305.37d45912026-03-05 37d4591 4,153 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4878 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yudasvs6rsi77plc
GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/codex-brainstorm
GET https://markdownregistry.com/api/v1/blob/c2a0d22910faf0bd67a50c1e40073d3510ac0c6b1d64a3b44ab1ff37ee3aa208

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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