codex SKILL.md skillA

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
skills/codex/SKILL.md
Versions recorded
5
Latest version
git:20261018.0333997, committed Oct 18, 2026
First version recorded
Oct 11, 2026
Size
11,671 bytes
Repository stars
4
License
MIT

Use the local Codex CLI as an independent second agent. As the integrating agent, run `codex review` once immediately before creating a substantive PR, or when the user explicitly asks for a review. When assigned to review code, inspect the diff yourself without invoking Codex or delegating another review. Do not automatically review ordinary edits, commits, audits, or exploratory work. Delegate implementation via `codex exec` only when the user explicitly asks for Codex to do it. Also covers…

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:e115420259d34a76

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 badge

[![mdr](https://markdownregistry.com/badge/art_ltkaw6nefg7eswme.svg)](https://markdownregistry.com/a/art_ltkaw6nefg7eswme)

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

Versions

The registry has recorded 5 versions of this file, between Oct 11, 2026 and Oct 18, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20261018.0333997 latest2026-10-18 0333997 11,671 BA view · diff
git:20261014.a3630c12026-10-14 a3630c1 11,297 BA view · diff
git:20261013.3875fa52026-10-13 3875fa5 10,553 BA view · diff
git:20261012.0f366df2026-10-12 0f366df 9,873 BA view · diff
git:20261011.ef644992026-10-11 ef64499 9,428 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 (11671 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_ltkaw6nefg7eswme
GET https://markdownregistry.com/api/v1/resolve?ref=transitive-bullshit/skills/codex
GET https://markdownregistry.com/api/v1/blob/e115420259d34a7613a12f57284da453ad30765d77f2b18cedd199e1853a2eb7

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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