abstraction-finder SKILL.md skillA

abstraction-finder from jerseycheese/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jerseycheese/agent-skills/abstraction-finder@git:20261016.04e815b

Pins git:20261016.04e815b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jerseycheese/agent-skills
Path
skills/abstraction-finder/SKILL.md
Versions recorded
3
Latest version
git:20261016.04e815b, committed Oct 16, 2026
First version recorded
Sep 1, 2026
Size
6,538 bytes
Repository stars
3
License
MIT

Finds recurring patterns worth extracting into shared code and proposes the smallest form for each (helper, util, base class) with the call sites it would replace. Enforces the rule of three. Trigger on: "where are we repeating ourselves", "find duplication", "what could be abstracted", "could this be DRY'd up".

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

# Abstraction Finder

Find repetition that has earned an abstraction, then propose the smallest general-purpose form of
it. Scan the code (whole repo or a named area), cluster genuine duplicates, and for each cluster
propose a shared helper/service/base class/template/util with the concrete call sites it replaces.

The point isn't to list every near-match — it's to surface a short set of extractions that remove
real duplication without over-abstracting. This is the counterweight to `kiss`: `kiss` strips a
change to its minimum and resists new abstractions; this skill argues *for* an abstraction, but only
once the duplication is real and repeated. Hold both — the target is the abstraction the code has
actually earned, not the one you can imagine needing.

## Scope first

State what you're scanning before you scan — the whole repo, a directory, a domain, one feature —
and list it so the user can confirm you're pointed at the right code. A whole-repo scan is noisy; a
scoped scan is actionable. Ask for a scope if the user didn't give one.

## Process

1. **Find repetition.** Search for near-identical logic, duplicated markup, parallel utilities, and
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jerseycheese/agent-skills/abstraction-finder@sha256:cc2fa6cef8f5d9a1

The line at the top of this page pins the label git:20261016.04e815b, 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_7ajexxf2mvwk3sga.svg)](https://markdownregistry.com/a/art_7ajexxf2mvwk3sga)

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

Versions

The registry has recorded 3 versions of this file, between Sep 1, 2026 and Oct 16, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
git:20261016.04e815b latest2026-10-16 04e815b 6,538 BA view · diff
git:20260901.1c7b8ab2026-09-01 1c7b8ab 6,926 BA view · diff
git:20260901.dc1ba0c2026-09-01 dc1ba0c 6,671 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 (6538 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

jerseycheese/agent-skills · 3 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7ajexxf2mvwk3sga
GET https://markdownregistry.com/api/v1/resolve?ref=jerseycheese/agent-skills/abstraction-finder
GET https://markdownregistry.com/api/v1/blob/cc2fa6cef8f5d9a11fc456646e2418919cef2d1a9c98e505137f47e8af4fea0f

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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