codex-architect SKILL.md skillA
codex-architect from sd0xdev/sd0x-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sd0xdev/sd0x-harness/codex-architect@git:20260905.3d84d94Pins 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-architect/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260905.3d84d94, committed Sep 5, 2026
- First version recorded
- Mar 5, 2026
- Size
- 3,599 bytes
- Repository stars
- 194
- License
- MIT
Codex architecture consulting. Use when: designing features, evaluating architecture, getting second opinion on design. Not for: implementation (use codex-implement), code review (use codex-code-review). Output: architecture advice + design recommendations.
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 Architect Skill (Third Brain)
## Trigger
- Keywords: architecture design, solution evaluation, tech selection, third brain, Codex advice, design consulting, ask Codex, second opinion
## When NOT to Use
- Code implementation (use /codex-implement)
- Code review (use /codex-review)
- Deep discussion/exhaustive exploration (use /codex-brainstorm)
## Usage
```bash
/codex-architect "<question>"
/codex-architect "Evaluate this design" --context src/xxx.ts --mode review
/codex-architect "Redis vs MongoDB?" --mode compare
```
## Modes
| Mode | Purpose | When |
| ------- | ----------------------- | -------------------------- |
| design | Provide design advice | Starting from scratch (default) |
| review | Evaluate existing design | Validate solution, find issues |
| compare | Compare multiple options | Tech selection |
## Core Principle
```
User -> Claude -> Codex -> Integrate
| | |
Initial thinking Third perspective Combined advice
```
## Codex Prompt Template
…Read the whole file at its exact version.
How to install
mdr add sd0xdev/sd0x-harness/codex-architect@sha256:306e5817316c6ad8The 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.
[](https://markdownregistry.com/a/art_uowfbv3v7eogv6cn)
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.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260905.3d84d94 latest | 2026-09-05 | 3d84d94 | 3,599 B | A | view · diff |
| git:20260321.4a2afd0 | 2026-03-21 | 4a2afd0 | 3,420 B | A | view · diff |
| git:20260305.3ae8b92 | 2026-03-05 | 3ae8b92 | 3,413 B | A | view · diff |
| git:20260305.37d4591 | 2026-03-05 | 37d4591 | 3,287 B | A | view · diff |
| git:20260305.c56d819 | 2026-03-05 | c56d819 | 2,917 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3599 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
sd0xdev/sd0x-harness · 194 stars · license MIT · pushed 2026-10-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_uowfbv3v7eogv6cn GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/codex-architect GET https://markdownregistry.com/api/v1/blob/306e5817316c6ad8398f1efbeb623313a88fca88d15e3b1c7e3da3b5b3ac0479
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.