Home / transitive-bullshit / skills · GitHub

codex SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

codex from transitive-bullshit/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add transitive-bullshit/skills/codex@git:20261018.0333997

Pins git:20261018.0333997 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: transitive-bullshit/skills
Path: provenance/upstream/codex/skill/SKILL.md
Versions recorded: 2
Latest version: git:20261018.0333997, committed Oct 18, 2026
First version recorded: Oct 11, 2026
Size: 10,197 bytes
Repository stars: 4
License: MIT

Use the local Codex CLI as an independent second agent. Two branches — (1) proactively run `codex review` for a second opinion after completing a substantive change, before presenting it as done or committing; (2) delegate a well-defined implementation task via `codex exec`, ONLY when the user explicitly asks for Codex to do it. Also covers how to prompt Codex.

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

Codex is an independent agent on PATH (`codex` — invoke as `command codex` if
a shell alias shadows it), sharing this working tree and already authenticated. It is a second opinion, not ground truth: verify what it
reports, own what it changes. It reads the same skills your repo carries.

Leave Codex's model at its CLI default unless the user asks for a specific
one. The default follows the current Codex release; do not pin a dated model
ID in this skill. If an explicit override is needed, verify it is current and
pass the requested model with `-m <model>`.

## If `codex` is not installed

When `codex` is missing from PATH, offer to install it — **ask the user for
approval first**, never install on your own initiative. On yes, follow the
current instructions at https://developers.openai.com/codex/cli. First-run
authentication is interactive — hand that step to the user. Verify with
`codex --version` before proceeding.

## Prompting Codex

Prompt Codex like an operator, not a collaborator: compact, block-structured
with XML tags. State the task, what "done" looks like, and the few constraints
that matter. A tighter prompt beats a bigger run — improve the contract before
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add transitive-bullshit/skills/codex@sha256:e73baf1248e8e523

The line at the top of this page pins the label git:20261018.0333997, 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](https://markdownregistry.com/badge/art_isqzhbubbbsa5q5f.svg)](https://markdownregistry.com/a/art_isqzhbubbbsa5q5f)

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

Versions

The registry has recorded 2 versions of this file, between Oct 11, 2026 and Oct 18, 2026, about one every 7 days.

version	committed	commit	size	audit
git:20261018.0333997 latest	2026-10-18	0333997	10,197 B	A	view · diff
git:20261011.ef64499	2026-10-11	ef64499	9,823 B	A	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 (10197 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

transitive-bullshit/skills · 4 stars · license MIT · pushed 2026-10-21 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_isqzhbubbbsa5q5f
GET https://markdownregistry.com/api/v1/resolve?ref=transitive-bullshit/skills/codex
GET https://markdownregistry.com/api/v1/blob/e73baf1248e8e52306a1e6fc0320854853e5dc1da49515eafd337b95daec0c68

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.

More from transitive-bullshit/skills

AGENTS.md AGENTS.md file

transitive-bullshit/skills · AGENTS.md

git:20261012.cfd478c · audit A · 4 stars

resolving-merge-conflicts SKILL.md skill

transitive-bullshit/skills · provenance/history/2026-10-11-removed/resolving-merge-conflicts/SKILL.md · Use when you need to resolve an in-progress git merge/rebase conflict.