Ruby mise Environment

Configure Ruby projects with mise as the single source of truth for Ruby version, env vars, and common tasks.

When to Use This Skill

• Setting up Ruby on a new machine or repo
• Pinning Ruby 4.0+
• Running bundle/rails with correct Ruby
• Migrating from rbenv/rvm/asdf

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