simplify SKILL.md skillA

simplify from maquina-app/rails-claude-code is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add maquina-app/rails-claude-code/simplify@git:20260714.12902ab

Pins git:20260714.12902ab in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
maquina-app/rails-claude-code
Path
rails-simplifier/skills/simplify/SKILL.md
Versions recorded
2
Latest version
git:20260714.12902ab, committed Jul 14, 2026
First version recorded
Jul 14, 2026
Size
15,664 bytes
Repository stars
48
License
MIT

Simplifies and refines Ruby on Rails code following 37signals patterns and the One Person Framework philosophy, while preserving exact functionality. Focuses on recently modified code unless instructed otherwise. Use this skill when simplifying or refactoring Rails code, reviewing recently written Rails code for 37signals/vanilla-Rails conformance, or when asked to make Rails code more vanilla. Triggers on "simplify this", "refactor to 37signals", "make this more vanilla Rails", removing…

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

# Rails Simplifier

Simplify and refine Ruby on Rails code to enhance clarity, consistency, and maintainability **while preserving exact functionality**. Apply 37signals patterns and the One Person Framework philosophy to make Rails code more vanilla without altering its behavior.

Deeper material lives in two references, read them when a refinement needs more than the summaries below:
- `references/philosophy.md` — the *why*, distilled from the 37signals / Jorge Manrubia writing.
- `references/patterns.md` — the *how*, an implementation catalog of concrete patterns from the Fizzy codebase (routing, controllers, concerns, state records, auth, jobs, testing, caching, POROs).

---

## Guiding Philosophy

Three ideas drive every refinement. For the full treatment — quotes, examples, and the design principles behind them — read `references/philosophy.md`.

- **One Person Framework** (DHH, 2021) — a toolkit powerful enough that one developer can build and maintain a whole competitive app. Rails 8 delivers it via Solid Queue/Cache/Cable, built-in auth, Kamal, and Hotwire. **The test:** can one person understand this codebase in an afternoon? If not, simplify.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add maquina-app/rails-claude-code/simplify@sha256:a642d48071f0803d

The line at the top of this page pins the label git:20260714.12902ab, 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_q227wbmozua5j6b5.svg)](https://markdownregistry.com/a/art_q227wbmozua5j6b5)

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

Versions

The registry has recorded 2 versions of this file, all committed on Jul 14, 2026.

versioncommittedcommitsizeaudit
git:20260714.12902ab latest2026-07-14 12902ab 15,664 BA view · diff
git:20260714.f4f7bc22026-07-14 f4f7bc2 17,027 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 (15664 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

maquina-app/rails-claude-code · 48 stars · license MIT · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_q227wbmozua5j6b5
GET https://markdownregistry.com/api/v1/resolve?ref=maquina-app/rails-claude-code/simplify
GET https://markdownregistry.com/api/v1/blob/a642d48071f0803dee8634b80af23c53450763e1859da67a08ee080ef33b5a6a

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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