ripwire-reuse-first SKILL.md skillA

ripwire-reuse-first from redhat-et/ripwire is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add redhat-et/ripwire/ripwire-reuse-first@git:20260919.15dd125

Pins git:20260919.15dd125 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
redhat-et/ripwire
Path
skills/ripwire-reuse-first/SKILL.md
Versions recorded
7
Latest version
git:20260919.15dd125, committed Sep 19, 2026
First version recorded
Aug 5, 2026
Size
5,334 bytes
Repository stars
2,530
License
Apache-2.0

About to write ONE symbol (even a 'quick' one-liner) or add a dependency: reuse before you reinvent. Finds the building block that already exists, the house pattern to imitate, the duplicate you'd recreate, a vendored dependency. An interface or whole feature → before-you-build. One --exemplar or --grep call at most.

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

# Reuse before you write

> Routing — pick the right door:
> • Starting a whole FEATURE (multi-symbol, needs a plan / interface / sizing) → **ripwire-before-you-build**.
> • The cross-cutting *map-before-you-read* token discipline for any read → **ripwire-orient** (`map-before-you-read.md`).
> • Judging whether what you wrote got better or worse before "done" → **ripwire-quality-bar**.
> • Not sure which skill? → **ripwire-router**.

The cheapest, simplest, most readable code is the code you don't write. Before authoring anything
non-trivial, spend one `ripwire` call (on PATH) to find what already exists.

## Retrieve by ROLE, never by raw similarity
This is the load-bearing rule, not a style preference: **similarity-retrieved "here's similar code, paste
it" measurably HURTS** — up to **−15% Pass@1** (arXiv:2503.20589). What
helps is API/type-signature context (+17-20%) and dependency-graph-structured retrieval (+6 EM; enabled 5/6
multi-file edits vs 0/6 without a graph). ripwire's shape — signatures + call-graph + role-ranked exemplars —
is the validated retrieval shape; "find me a similar-looking snippet" is the anti-pattern to avoid, even
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add redhat-et/ripwire/ripwire-reuse-first@sha256:27337ea0b26d34d6

The line at the top of this page pins the label git:20260919.15dd125, 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_pleqm4pe36p7dxpu.svg)](https://markdownregistry.com/a/art_pleqm4pe36p7dxpu)

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

Versions

The registry has recorded 7 versions of this file, between Aug 5, 2026 and Sep 19, 2026, about one every 8 days.

versioncommittedcommitsizeaudit
git:20260919.15dd125 latest2026-09-19 15dd125 5,334 BA view · diff
git:20260913.30a5a3c2026-09-13 30a5a3c 5,179 BA view · diff
git:20260910.29ae28d2026-09-10 29ae28d 5,111 BA view · diff
git:20260907.07aef5f2026-09-07 07aef5f 5,097 BA view · diff
git:20260907.9e1e9f92026-09-07 9e1e9f9 5,073 BA view · diff
git:20260905.23955432026-09-05 2395543 5,762 BA view · diff
git:20260805.9a729ad2026-08-05 9a729ad 5,625 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 (5334 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

redhat-et/ripwire · 2,530 stars · license Apache-2.0 · pushed 2026-11-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_pleqm4pe36p7dxpu
GET https://markdownregistry.com/api/v1/resolve?ref=redhat-et/ripwire/ripwire-reuse-first
GET https://markdownregistry.com/api/v1/blob/27337ea0b26d34d68c1fc6e053fadeb631138c219b166707e357069ca364a6b2

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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