Cursor · Backend
Cursor rules for Ruby on Rails
Rails rules teach Cursor your conventions over Rails' conventions — skinny controllers, where logic goes (concerns, service objects, POROs), your testing framework (RSpec vs Minitest), and Hotwire/Turbo usage. They stop the model generating fat controllers and N+1 queries.
Every .cursorrules and .mdc file below targets Ruby on Railsand is quality-scored from automated signals — freshness, schema completeness, and review activity — not star counts you can game. Each listing carries its real GitHub author and SPDX license, so you know exactly what you're pasting into your repo and under what terms. That's the difference between this and an awesome-cursor-rules link dump: here a stale or broken Ruby on Rails rule sinks to the bottom instead of sitting at the top because someone starred it in 2024.
Top Ruby on Rails Cursor rules by quality score
Ranked by quality score, refreshed daily. 3 Ruby on Rails rules on RuleSell right now.
How to install a Ruby on Rails .mdc rule
1. Pick a rule above
Open the highest quality-scored Ruby on Rails listing and read the preview — make sure its conventions match your stack before you copy it.
2. Choose a location
Project-wide rules go in .cursorrules at your repo root. Scoped rules go in .cursor/rules/rails.mdc and attach to file globs.
3. Paste and scope it
Drop the contents in. For a .mdc file, set the frontmatter globs (e.g. globs: "**/*.ts") so Cursor auto-attaches it only for Ruby on Rails files.
4. Reload Cursor
Reload the Cursor window so the rule is loaded, then confirm it appears under Settings → Rules in your active context.
# Project-wide rule
cp rails.cursorrules ./.cursorrules
# Or a scoped .mdc rule (auto-attaches by glob):
mkdir -p .cursor/rules
cat > .cursor/rules/rails.mdc <<'EOF'
---
description: Ruby on Rails project conventions
globs: "**/*"
alwaysApply: false
---
# ...paste the rule body here...
EOFRuby on Rails Cursor rules — frequently asked
What's the best Cursor rule for Ruby on Rails?
The best Ruby on Rails Cursor rule is the one that encodes your project's conventions — not a generic one-size-fits-all file. On RuleSell, Ruby on Rails rules are ranked by quality score (freshness, schema completeness, and review signals), so the top of this page is a defensible starting point. Open the highest-scored listing, then trim it to match your stack.
Where do Ruby on Rails .cursorrules files go?
Put a project-wide rule in a .cursorrules file at your repo root. For scoped rules, create .cursor/rules/rails.mdc and attach it to the relevant file globs (for example **/*.ts) so Cursor only loads it when you're editing matching Ruby on Rails files. Commit both to git so your whole team gets the same context.
Do these Ruby on Rails rules work in Windsurf or Claude Code too?
Often, yes. A plain-markdown Ruby on Rails rule frequently works as-is in Windsurf (rename to .windsurfrules) and as project context for Claude Code (paste into CLAUDE.md). RuleSell dual-tags listings that are verified compatible across environments.
Are these Ruby on Rails Cursor rules free?
Yes — every listing is free to download during beta. Each Ruby on Rails rule keeps its original GitHub author attribution and SPDX license, so you always know the provenance. Paid publishing with creator payouts opens after beta.