moo-authoring SKILL.md skillA

moo-authoring from saadshahd/moo.md is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add saadshahd/moo.md/moo-authoring@git:20261031.143478c

Pins git:20261031.143478c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
saadshahd/moo.md
Path
.claude/skills/moo-authoring/SKILL.md
Versions recorded
11
Latest version
git:20261031.143478c, committed Oct 31, 2026
First version recorded
Jul 24, 2026
Size
7,633 bytes
Repository stars
38
License
MIT

Use when adding or changing a skill, hook, or runtime file in this repo — including deciding which unit a new capability should be.

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

Doctrine for authoring moo's own surfaces.

## Frontmatter

No `when_to_use`.

A condition that follows what the skill does is marked `Use when <condition>.`
A description may also open with the condition and stop there, where naming the capability would discriminate nothing.

A skill that stays in this repo declares `metadata.internal: true`.

Version lives in `plugin.json` only. Claude Code spec does not allow `version` in SKILL.md frontmatter.

## Sizing

- Size a skill by a deletion pass using a /reduce loop, never a numeric cap.
- Decision tables > prose explanations.

## Efficiency

- Challenge every sentence: "Does Claude need this?"
- Bullets for enumerable items; a paragraph when the point is one connected argument.
- No vague terminology; pick one term per concept.

## Skill Design

Phrase design decisions as "X over Y: reason".

**Unit choice** — behavior inlines at build, data references at runtime; a skill's firing is probabilistic, so behavior that must run every time is a hook:

| The new thing is...                                  | Unit                                               |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add saadshahd/moo.md/moo-authoring@sha256:408f9150dd75935c

The line at the top of this page pins the label git:20261031.143478c, 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_7hlsp5dywlnbxv7x.svg)](https://markdownregistry.com/a/art_7hlsp5dywlnbxv7x)

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

Versions

The registry has recorded 11 versions of this file, between Jul 24, 2026 and Oct 31, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20261031.143478c latest2026-10-31 143478c 7,633 BA view · diff
git:20261031.c44aa9c2026-10-31 c44aa9c 7,839 BA view · diff
git:20261031.86dbbbf2026-10-31 86dbbbf 7,826 BA view · diff
git:20261026.30ec60a2026-10-26 30ec60a 5,937 BA view · diff
git:20260927.debc4542026-09-27 debc454 5,641 BA view · diff
git:20260925.d8db1192026-09-25 d8db119 5,495 BA view · diff
git:20260817.f04083f2026-08-17 f04083f 5,019 BA view · diff
git:20260817.0cc07d92026-08-17 0cc07d9 3,754 BA view · diff
git:20260816.8c2b68d2026-08-16 8c2b68d 2,757 BA view · diff
git:20260803.c25becd2026-08-03 c25becd 3,849 BA view · diff
git:20260724.4d0310b2026-07-24 4d0310b 3,127 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 (7633 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

saadshahd/moo.md · 38 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7hlsp5dywlnbxv7x
GET https://markdownregistry.com/api/v1/resolve?ref=saadshahd/moo.md/moo-authoring
GET https://markdownregistry.com/api/v1/blob/408f9150dd75935cfd32ff5e28e5d6e206b0433c3ff9e092d5d175fb3573f948

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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