codex SKILL.md skillA
codex from ericpardee/agent-files is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericpardee/agent-files/codex@git:20261031.86ab79bPins git:20261031.86ab79b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericpardee/agent-files
- Path
skills/skill-codex/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261031.86ab79b, committed Oct 31, 2026
- First version recorded
- Jan 19, 2026
- Size
- 3,703 bytes
- Repository stars
- 3
- License
- MIT
Use when the user asks to run Codex CLI (codex exec, codex resume) or references OpenAI Codex for code analysis, refactoring, or automated editing.
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 Reference for driving `codex exec` correctly from an agent session. For a full review gate with a fix-or-rebut loop, use the `codex-gate` skill instead. ## Invocation rules - Do not pass `-m`. `~/.codex/config.toml` sets the default model; override it only when the user names a model. Pair reviews with `-c model_reasoning_effort="xhigh"` (options: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`). - Always redirect stdin from `/dev/null`. `codex exec` appends stdin to the prompt, so without the redirect it blocks on an open terminal and looks like a slow reasoning pass until killed. The tell is empty stdout with `Reading additional input from stdin...` on stderr. - Append `2>/dev/null` to hide thinking tokens (stderr). Show stderr only when debugging. - Sandbox: `--sandbox read-only` for reviews, `workspace-write` for edits, `danger-full-access` only for work that needs the network. `--full-auto` was removed (codex-cli 0.160 rejects it with `unexpected argument`); a `workspace-write` exec run edits without it. Ask before `danger-full-access` or `--skip-git-repo-check` unless the user already granted it. …
Read the whole file at its exact version.
How to install
mdr add ericpardee/agent-files/codex@sha256:4c026956a6cfc67eThe line at the top of this page pins the label git:20261031.86ab79b, 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_vvyrvcv7bo2iazgg)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jan 19, 2026 and Oct 31, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261031.86ab79b latest | 2026-10-31 | 86ab79b | 3,703 B | A | view · diff |
| git:20261004.eed0c8b | 2026-10-04 | eed0c8b | 3,460 B | A | view · diff |
| git:20260920.6de3dc1 | 2026-09-20 | 6de3dc1 | 3,398 B | A | view · diff |
| git:20260918.4729d23 | 2026-09-18 | 4729d23 | 5,527 B | A | view · diff |
| git:20260727.60d0582 | 2026-07-27 | 60d0582 | 4,305 B | A | view · diff |
| git:20260213.3aef356 | 2026-02-13 | 3aef356 | 4,203 B | A | view · diff |
| git:20260119.f7a0b30 | 2026-01-19 | f7a0b30 | 4,002 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 (3703 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
ericpardee/agent-files · 3 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vvyrvcv7bo2iazgg GET https://markdownregistry.com/api/v1/resolve?ref=ericpardee/agent-files/codex GET https://markdownregistry.com/api/v1/blob/4c026956a6cfc67e138b02a67b805c90e5c0973e723f9ce70585dba66dda2075
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 ericpardee/agent-files
Every file in ericpardee/agent-files