Is the Rails Upgrade Assistant skill free?

Yes. The skill itself is free from maquina-app/rails-upgrade-skill. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Rails Upgrade Assistant SkillProof Score?

6.8/10 — installs cleanly 3/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 2/5.

How do I install Rails Upgrade Assistant?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Rails Upgrade Assistant with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Rails Upgrade Assistant

Generates Rails upgrade detection scripts and reports — solid for 7.2+, missing for the first 7.0→7.1 hop.

by maquina-app · maquina-app/rails-upgrade-skill

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 6.8/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 5fbfdff

Assembled the real Rails 7.1→7.2 detection script from the bundled pattern file and it correctly flagged all 5 planted breaking changes in a test app (vs. 2/5 for a from-memory baseline) — but the same approach dead-ends on the advertised 7.0→7.1 hop because no pattern file exists for it and 3 referenced reference/*.md files 404.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 3/5
Triggers reliably 5/5
Output vs. baseline 7/10
Docs & honesty 2/5

What Rails Upgrade Assistant does

Generates a bash script that scans a Rails codebase for version-specific breaking changes with file:line references, then turns the actual findings into a comprehensive upgrade report and an app:update configuration preview. Triggers on Rails upgrade requests, breaking-change questions, or when a user shares a detection script's findings.txt. Detection patterns exist for Rails 7.2, 8.0, and 8.1 but not for the mandatory first 7.0→7.1 hop, despite the skill's own description claiming support for 'Rails 7.0 through 8.1.1'.

How to install Rails Upgrade Assistant

git clone https://github.com/maquina-app/rails-upgrade-skill
cd rails-upgrade-skill
mkdir -p ~/.claude/skills
cp -r . ~/.claude/skills/rails-upgrade-assistant

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Rails Upgrade Assistant

/rails-upgrade-assistant Generates Rails upgrade detection scripts and reports — solid for 7.2+, missing for the first 7.0→7.1 hop.

It also activates on plain-language prompts like these:

Help me upgrade my Rails app from 7.1 to 7.2 without breaking things.
What breaking changes should I expect moving to Rails 8.0?
Scan my Rails codebase for issues before we upgrade the framework.

Frequently asked questions

Is the Rails Upgrade Assistant skill free?: Yes. The skill itself is free from maquina-app/rails-upgrade-skill. SkillProof publishes the install command and an independent test verdict at no cost.
Does Rails Upgrade Assistant work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Works with setup. Assembled the real Rails 7.1→7.2 detection script from the bundled pattern file and it correctly flagged all 5 planted breaking changes in a test app (vs. 2/5 for a from-memory baseline) — but the same approach dead-ends on the advertised 7.0→7.1 hop because no pattern file exists for it and 3 referenced reference/*.md files 404.
What is the Rails Upgrade Assistant SkillProof Score?: 6.8/10 — installs cleanly 3/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 2/5.
How do I install Rails Upgrade Assistant?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Rails Upgrade Assistant with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.