This skill should be used when writing Ruby and Rails code in DHH's 37signals style. It embodies REST purity, fat models, thin controllers, Current attributes, and Hotwire patterns. It applies during Ruby/Rails code generation, refactoring, and code review.
From soleurnpx claudepluginhub jikig-ai/soleur --plugin soleurThis skill uses the workspace's default tool permissions.
references/architecture.mdreferences/controllers.mdreferences/frontend.mdreferences/gems.mdreferences/models.mdreferences/testing.md<essential_principles>
"The best code is the code you don't write. The second best is the code that's obviously correct."
Vanilla Rails is plenty:
What they deliberately avoid:
Development Philosophy:
Specify a number or describe your task. </intake>
<routing>| Response | Reference to Read |
|---|---|
| 1, controller | controllers.md |
| 2, model | models.md |
| 3, view, frontend, turbo, stimulus, css | frontend.md |
| 4, architecture, routing, auth, job, cache | architecture.md |
| 5, test, testing, minitest, fixture | testing.md |
| 6, gem, dependency, library | gems.md |
| 7, review | Read all references, then review code |
| 8, general task | Read relevant references based on context |
After reading relevant references, apply patterns to the user's code. </routing>
<quick_reference>
Verbs: card.close, card.gild, board.publish (not set_style methods)
Predicates: card.closed?, card.golden? (derived from presence of related record)
Concerns: Adjectives describing capability (Closeable, Publishable, Watchable)
Controllers: Nouns matching resources (Cards::ClosuresController)
Scopes:
chronologically, reverse_chronologically, alphabetically, latestpreloaded (standard eager loading name)indexed_by, sorted_by (parameterized)active, unassigned (business terms, not SQL-ish)Instead of custom actions, create new resources:
POST /cards/:id/close → POST /cards/:id/closure
DELETE /cards/:id/close → DELETE /cards/:id/closure
POST /cards/:id/archive → POST /cards/:id/archival
# Symbol arrays with spaces inside brackets
before_action :set_message, only: %i[ show edit update destroy ]
# Private method indentation
private
def set_message
@message = Message.find(params[:id])
end
# Expression-less case for conditionals
case
when params[:before].present?
messages.page_before(params[:before])
else
messages.last_page
end
# Bang methods for fail-fast
@message = Message.create!(params)
# Ternaries for simple conditionals
@room.direct? ? @room.users : @message.mentionees
State as Records:
Card.joins(:closure) # closed cards
Card.where.missing(:closure) # open cards
Current Attributes:
belongs_to :creator, default: -> { Current.user }
Authorization on Models:
class User < ApplicationRecord
def can_administer?(message)
message.creator == self || admin?
end
end
</quick_reference>
<reference_index>
All detailed patterns in references/:
| File | Topics |
|---|---|
| controllers.md | REST mapping, concerns, Turbo responses, API patterns, HTTP caching |
| models.md | Concerns, state records, callbacks, scopes, POROs, authorization, broadcasting |
| frontend.md | Turbo Streams, Stimulus controllers, CSS layers, OKLCH colors, partials |
| architecture.md | Routing, authentication, jobs, Current attributes, caching, database patterns |
| testing.md | Minitest, fixtures, unit/integration/system tests, testing patterns |
| gems.md | What they use vs avoid, decision framework, Gemfile examples |
| </reference_index> |
<success_criteria> Code follows DHH style when:
Important Disclaimers: