rails-controllers

name	rails-controllers
description	Rails controllers: strong parameters, filters, respond_to, streaming, and HTTP semantics. Use when implementing request handling.

Rails Controllers

Keep controllers thin; push domain logic to models, services, or jobs.

When to Use This Skill

• New controller actions
• Strong params and authorization hooks
• Turbo Stream responses

Defaults (This Plugin)

• Toolchain: mise — not rbenv, rvm, or asdf directly
• Ruby: 4.0.0+ unless the project pins otherwise
• Rails: 8+ conventions and generators when applicable
• Execution: Prefer mise exec --, bin/rails, bin/rspec, and bundle exec

Core Guidance

1. Strong parameters — always permit explicitly:

params.expect(user: [:name, :email])

1. Before actions for auth and setup; avoid business rules in filters.

2. respond_to / respond_to do |format| for HTML/Turbo/JSON.

3. Status codes: head :no_content, render :show, status: :created.

4. Service objects when an action exceeds ~15 lines or has many branches.

Quick Commands

mise exec -- bin/rails generate controller Posts index
mise exec -- bundle exec rubocop app/controllers

Anti-Patterns

• Mass assignment without strong params
• N+1 queries in index without includes
• Instance variables for non-view side effects

See Also

• rails-routing
• rails-hotwire-turbo