reduce SKILL.md skillA
reduce from saadshahd/moo.md is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add saadshahd/moo.md/reduce@git:20261016.c6bfd23Pins git:20261016.c6bfd23 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- saadshahd/moo.md
- Path
hope/skills/reduce/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.c6bfd23, committed Oct 16, 2026
- First version recorded
- Aug 16, 2026
- Size
- 1,633 bytes
- Repository stars
- 38
- License
- MIT
Re-derive something written into the shortest version that still covers everything. Use when something already written should get shorter and nothing it covers can be lost.
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
Reduce only against a closed set: what the text must cover is in hand and nothing unseen is coming. This runs inside one turn — nothing waits on the user. Set the old wording aside. Take what the text must cover and derive the shortest statement that covers all of it — deleting sentences keeps whichever ones happened to be there, which is not the shortest way to cover the set. Try a tree or a table as a candidate where the covered cases nest, run in order or stand side by side; it wins only by being shorter. If what it must cover has moved since the text was written — cases now in hand it was not derived on, an objective it was not written for — derive from the coverage as it stands today. What comes out is a new derivation of the current set, standing on its own. Between candidate statements, prefer the shortest one that covers everything over the one that keeps the original's shape. Push the derived statement shorter, pass by pass. When a pass makes it stop covering something, it went too far — back off by the minimum that recovers it. The floor is where every remaining cut costs coverage; a clause that survives every pass is load-bearing. …
Read the whole file at its exact version.
How to install
mdr add saadshahd/moo.md/reduce@sha256:0e98a16bc2e38f8cThe line at the top of this page pins the label git:20261016.c6bfd23, 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_gth2iwfsko5i6chk)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 16, 2026 and Oct 16, 2026, about one every 15 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.c6bfd23 latest | 2026-10-16 | c6bfd23 | 1,633 B | A | view · diff |
| git:20260927.d54c79c | 2026-09-27 | d54c79c | 1,499 B | A | view · diff |
| git:20260817.f04083f | 2026-08-17 | f04083f | 1,671 B | A | view · diff |
| git:20260817.0cc07d9 | 2026-08-17 | 0cc07d9 | 3,188 B | A | view · diff |
| git:20260816.8c2b68d | 2026-08-16 | 8c2b68d | 3,190 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 (1633 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
saadshahd/moo.md · 38 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gth2iwfsko5i6chk GET https://markdownregistry.com/api/v1/resolve?ref=saadshahd/moo.md/reduce GET https://markdownregistry.com/api/v1/blob/0e98a16bc2e38f8c0f9bcdc678dab69263143a6917040774bf7ad723782b8292
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 saadshahd/moo.md
Every file in saadshahd/moo.md