ai-agents-md SKILL.md skillA

ai-agents-md from arcasilesgroup/ai-engineering is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add arcasilesgroup/ai-engineering/ai-agents-md@git:20260929.4338d92

Pins git:20260929.4338d92 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
arcasilesgroup/ai-engineering
Path
skills/ai-agents-md/SKILL.md
Versions recorded
8
Latest version
git:20260929.4338d92, committed Sep 29, 2026
First version recorded
Sep 3, 2026
Size
10,200 bytes
Repository stars
62
License
Apache-2.0

Creates, audits and maintains the AGENTS.md a repository owes its coding agents, following the agents.md convention (https://agents.md/). Decides root-only versus nested AGENTS.md files from the repo's real shape, interviews the tree (not the user) for build/test/lint commands, and writes only what an agent cannot deduce from the code. Audits a set that already exists: a rule the code states, a child repeating its parent, a command that no longer runs, a zone with no route in. Also the…

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

# AGENTS.md for this repository, sized to its shape

`AGENTS.md` is the file coding agents read before working in a repo (https://agents.md/ and
https://github.com/agentsmd/agents.md). It is instructions for the agent, in the open, owned
by the team. ai-engineering governs the format; your repo owns the content.

## One file or many

The default is ONE `AGENTS.md` at the repository root: most agents read the nearest file up
the tree, so a single root file covers every package. Add nested files only when a
subproject genuinely needs different instructions — monorepos where packages have different
toolchains, test runners, or review rules. The test is mechanical:

- One toolchain, one test command repo-wide → root only.
- Two or more packages with different commands, lint rules, or conventions → one root file
  with what is shared, one nested file per divergent package with what differs.
- A nested file must not repeat its parents: repetition drifts. State only the delta.

Say the decision out loud when you write the file: "single root AGENTS.md" or "root + N
nested, one per package that diverges".

## What goes in (and what never does)
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add arcasilesgroup/ai-engineering/ai-agents-md@sha256:f0573309a3bec1be

The line at the top of this page pins the label git:20260929.4338d92, 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_paq3mq2ap7ekgmw2.svg)](https://markdownregistry.com/a/art_paq3mq2ap7ekgmw2)

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

Versions

The registry has recorded 8 versions of this file, between Sep 3, 2026 and Sep 29, 2026, about one every 4 days.

versioncommittedcommitsizeaudit
git:20260929.4338d92 latest2026-09-29 4338d92 10,200 BA view · diff
git:20260926.b0fd9cf2026-09-26 b0fd9cf 9,229 BA view · diff
git:20260922.83b942f2026-09-22 83b942f 8,869 BA view · diff
git:20260914.793714f2026-09-14 793714f 9,224 BA view · diff
git:20260911.eccaa3a2026-09-11 eccaa3a 9,234 BA view · diff
git:20260910.d0213302026-09-10 d021330 9,232 BA view · diff
git:20260910.f2e5ee12026-09-10 f2e5ee1 9,027 BA view · diff
git:20260903.512b20d2026-09-03 512b20d 5,891 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 (10200 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

arcasilesgroup/ai-engineering · 62 stars · license Apache-2.0 · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_paq3mq2ap7ekgmw2
GET https://markdownregistry.com/api/v1/resolve?ref=arcasilesgroup/ai-engineering/ai-agents-md
GET https://markdownregistry.com/api/v1/blob/f0573309a3bec1be2aa1eb2cfb4cf8a27a823b0408c5fe4eb63c372337b1d35f

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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