codex-setup SKILL.md skillB

codex-setup 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-setup@git:20261003.91caf8d

Pins git:20261003.91caf8d in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
sd0xdev/sd0x-harness
Path
skills/codex-setup/SKILL.md
Versions recorded
6
Latest version
git:20261003.91caf8d, committed Oct 3, 2026
First version recorded
Mar 9, 2026
Size
60,148 bytes
Repository stars
194
License
MIT

Initialize sd0x-dev-flow infrastructure for Codex CLI and other non-Claude agents. Generates AGENTS.md, installs the commit-msg hook, copies runner scripts. The pre-push gate is opt-in via --with-push-gate. Use when setting up a new project or after updating skills.

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 Setup

## Trigger

- Keywords: codex setup, codex init, agents.md, setup codex, initialize codex, codex doctor, codex sync
- After: `npx skills add sd0xdev/sd0x-harness`

## Subcommands

| Command | Purpose |
|---------|---------|
| `init` | First-time setup: generate AGENTS.md + install the `commit-msg` hook + copy scripts |
| `doctor` | Verify installation integrity: files exist, AGENTS.md hash matches, and each recorded hook is **active** — hook *bytes* are `sync`'s axis, not this one (§ doctor) |
| `sync` | Re-generate AGENTS.md + update installed hooks/scripts after skill update |

Default (no subcommand): `init`

## Arguments

| Flag | Applies to | Effect |
|------|-----------|--------|
| `--with-push-gate` | `init`, `sync` | Install `pre-push-gate.sh` as the `pre-push` hook. **Off by default** |

The `pre-push` gate is the one hook that **waits for a human** — it reads `/dev/tty`,
so from a non-interactive context it stalls or fails on a terminal that is not there.
That is why it is opt-in, and why every path below reads that choice from state rather
than re-deciding it. `commit-msg` stays a default install because it never prompts:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sd0xdev/sd0x-harness/codex-setup@sha256:e815d8187823b73f

The line at the top of this page pins the label git:20261003.91caf8d, 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_htbppp65ne5xghve.svg)](https://markdownregistry.com/a/art_htbppp65ne5xghve)

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

Versions

The registry has recorded 6 versions of this file, between Mar 9, 2026 and Oct 3, 2026, about one every 42 days. Its first recorded version is graded A and its latest B.

versioncommittedcommitsizeaudit
git:20261003.91caf8d latest2026-10-03 91caf8d 60,148 BB view · diff
git:20260823.636c5732026-08-23 636c573 56,414 BB view · diff
git:20260822.2418ba52026-08-22 2418ba5 56,415 BB view · diff
git:20260813.fead97d2026-08-13 fead97d 4,468 BA view · diff
git:20260811.a6bbb1f2026-08-11 a6bbb1f 4,574 BA view · diff
git:20260309.0aecf292026-03-09 0aecf29 4,332 BA view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No script tag (matched: <script)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (60148 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

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

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

API

GET https://markdownregistry.com/api/v1/artifacts/art_htbppp65ne5xghve
GET https://markdownregistry.com/api/v1/resolve?ref=sd0xdev/sd0x-harness/codex-setup
GET https://markdownregistry.com/api/v1/blob/e815d8187823b73f520ac3e414064eb5c4c9f677f72861f0f49dcb82572b69f4

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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Every file in sd0xdev/sd0x-harness

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