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Ruby on Rails framework patterns — ActiveRecord, controllers, concerns, service objects, background jobs, and API mode
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インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
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npx skills add https://github.com/InugamiDev/ultrathink-oss --skill ruby-railsコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
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SKILL.md を表示中
Unified design foundations — design system architecture, tokens, component specs, visual principles, creative vision, figma integration, plus brand design system loader (66 real brands via DESIGN.md). Absorbs design, design-system, design-systems, design-principles, design-router, creative-vision, figma, design-md.
Render, summarize, and present markdown documents and structured content in multiple output modes
Ultra UI skill - combines Google's DESIGN.md spec (machine-readable design tokens) with the ui-ux-pro-max knowledge base (91 styles, 161 palettes, 73 font pairings, 161 products, 104 UX guidelines, 25 chart types). Generates lint-clean DESIGN.md files, validates token references and WCAG contrast, exports Tailwind/DTCG tokens, and diffs design systems version-over-version.
| name | ruby-rails |
| description | Ruby on Rails framework patterns — ActiveRecord, controllers, concerns, service objects, background jobs, and API mode |
| layer | domain |
| category | backend |
| triggers | ["ruby","rails","activerecord","ruby on rails","rails api","sidekiq","rails migration"] |
| inputs | ["application requirements","Rails version","database choice"] |
| outputs | ["models","controllers","services","migrations","tests","configuration"] |
| linksTo | ["postgresql","redis","testing-patterns","cicd","docker"] |
| linkedFrom | ["api-designer","authentication"] |
| preferredNextSkills | ["postgresql","testing-patterns"] |
| fallbackSkills | ["api-designer"] |
| riskLevel | low |
| memoryReadPolicy | selective |
| memoryWritePolicy | none |
| sideEffects | ["database migrations","gem installations"] |
Rails is a full-stack MVC framework optimized for developer productivity with strong conventions. This skill covers modern Rails patterns (Rails 7+), API mode, ActiveRecord best practices, service objects, and background job processing.
class Order < ApplicationRecord
# Associations
belongs_to :customer
has_many :order_items, dependent: :destroy
has_many :products, through: :order_items
has_one :shipment
# Validations
validates :status, presence: true, inclusion: { in: %w[pending confirmed shipped delivered] }
validates :total_cents, numericality: { greater_than_or_equal_to: 0 }
# Scopes — keep queries in the model, not controllers
scope :recent, -> { where("created_at > ?", 30.days.ago) }
scope :pending, -> { where(status: "pending") }
scope :with_items, -> { includes(:order_items, :products) }
# Enum for status
enum :status, { pending: 0, confirmed: 1, shipped: 2, delivered: 3 }
after_create
pending?
update!( , .current)
.confirmation().deliver_later
class Api::V1::OrdersController < ApplicationController
before_action :authenticate_user!
before_action :set_order, only: %i[show update]
def index
orders = current_user.orders
.recent
.with_items
.page(params[:page])
.per(25)
render json: OrderSerializer.new(orders).serializable_hash
end
def create
result = Orders::CreateService.call(
customer: current_user,
items: order_params[:items]
)
if result.success?
render json: OrderSerializer.new(result.order).serializable_hash, status: :created
else
render json: { errors: result.errors }, status: :unprocessable_entity
end
end
private
def set_order
@order = current_user.orders.find(params[:id])
end
def order_params
params.require(:order).permit(items: %i[product_id quantity])
end
end
module Orders
class CreateService
attr_reader :order, :errors
def self.call(**args)
new(**args).call
end
def initialize(customer:, items:)
@customer = customer
@items = items
@errors = []
end
def call
ActiveRecord::Base.transaction do
@order = @customer.orders.build(status: :pending)
build_order_items
calculate_total
@order.save!
end
self
rescue ActiveRecord::RecordInvalid => e
@errors = e.record.errors.full_messages
self
end
def success?
@errors.empty?
end
private
def build_order_items
@items.each do |item|
product = Product.find(item[:product_id])
@order.order_items.build(
product: product,
quantity: item[:quantity],
unit_price_cents: product.price_cents
)
end
end
def calculate_total
@order.total_cents = @order.order_items.sum { |i| i.unit_price_cents * i.quantity }
end
end
end
class ProcessOrderJob < ApplicationJob
queue_as :default
retry_on ActiveRecord::Deadlocked, wait: 5.seconds, attempts: 3
discard_on ActiveJob::DeserializationError
def perform(order_id)
order = Order.find(order_id)
return if order.confirmed? # Idempotency guard
order.confirm!
InventoryService.reserve(order)
PaymentService.charge(order)
end
end
# Enqueue
ProcessOrderJob.perform_later(order.id)
# Schedule
ProcessOrderJob.set(wait: 5.minutes).perform_later(order.id)
class CreateOrders < ActiveRecord::Migration[7.1]
def change
create_table :orders do |t|
t.references :customer, null: false, foreign_key: { to_table: :users }
t.integer :status, null: false, default: 0
t.integer :total_cents, null: false, default: 0
t.datetime :confirmed_at
t.timestamps
end
add_index :orders, [:customer_id, :status]
add_index :orders, :created_at
end
end
includes, preload, or eager_load. Use the bullet gem in development to detect them.WHERE and ORDER BY clauses.params.permit to prevent mass assignment vulnerabilities.