codex-cli SKILL.md skillA
codex-cli from scarletkc/agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add scarletkc/agents/codex-cli@git:20260824.d5a3123Pins git:20260824.d5a3123 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- scarletkc/agents
- Path
skills/codex-cli/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260824.d5a3123, committed Aug 24, 2026
- First version recorded
- Aug 20, 2026
- Size
- 11,268 bytes
- Repository stars
- 225
- License
- Apache-2.0
When handing work to the Codex CLI earns its cost, and how to size the run: second-model review, bounded implementation hand-offs, sandbox permissions, model and reasoning effort. Use when the user asks for Codex or `codex exec`, when a change is complex or high-stakes enough that an independent reviewer would change the outcome, or when a delegated run needs its model, effort, or permissions chosen. For agents other than Codex itself.
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 CLI Codex is a second agent on the same machine, with its own model behind it. That is the entire reason to reach for it: a model that did not write the code has no memory of intending it to work. Everything below follows from that one asymmetry — who wrote it, who reads it, and how much thinking each step is worth paying for. This skill is for the supervising agent, not for Codex. If you *are* Codex, this does not apply — calling yourself buys nothing but a second opinion from the same mind. Claude Code is the intended caller. It also assumes the machine is already set up: `codex` on `PATH`, the user logged in, and whatever MCP servers and tools they want available configured in `~/.codex/config.toml`. If the binary is missing, auth has expired, or a run dies on permissions, report that plainly and stop — quietly falling back to doing it yourself hides the fact that the review the user asked for never happened. Concrete flags belong to `codex --help`, which is authoritative and moves faster than this file. What follows is the judgment. ## When to reach for it Every invocation is a second model spending the user's money and your …
Read the whole file at its exact version.
How to install
mdr add scarletkc/agents/codex-cli@sha256:cc72db26486e387aThe line at the top of this page pins the label git:20260824.d5a3123, 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_3uevkwpckwf2ls52)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Aug 20, 2026 and Aug 24, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260824.d5a3123 latest | 2026-08-24 | d5a3123 | 11,268 B | A | view · diff |
| git:20260820.d4e4f4d | 2026-08-20 | d4e4f4d | 11,273 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 (11268 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
scarletkc/agents · 225 stars · license Apache-2.0 · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3uevkwpckwf2ls52 GET https://markdownregistry.com/api/v1/resolve?ref=scarletkc/agents/codex-cli GET https://markdownregistry.com/api/v1/blob/cc72db26486e387aa9546240447be8114b61b436bd9672a44fb1a62be5c50ded
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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