igmarin/rails-agent-skills
Curated library of 42 public AI agent skills for Ruby on Rails development, plus 5 callable workflow skills. Organized by category: planning, testing, code-quality, ddd, engines, infrastructure, api, patterns, context, orchestration, and workflows. Covers code review, architecture, security, testing (RSpec), engines, service objects, DDD patterns, and TDD automation.
97
97%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
examples.mdskills/patterns/strategy-factory-null-calculator/assets/
strategy-factory-null-calculator examples
- Factory usage example (Ruby)
calculator = StrategyFactory.for(account: account)
result = calculator.calculate(amount: 1000)- Null calculator behavior
NullCalculator returns zeroed results and never raises, safe to use as fallback:
{ value: 0, breakdown: {}, warnings: [] }- Lookup order
- The factory tries strategies in
lookup_orderand falls back tonull_calculatorif none match.
build
docs
mcp_server
skills
api
api-rest-collection
rails-graphql-best-practices
code-quality
rails-architecture-review
rails-code-conventions
rails-code-review
rails-review-response
rails-security-review
rails-stack-conventions
assets
snippets
refactor-safely
context
rails-context-engineering
rails-project-onboarding
ddd
ddd-boundaries-review
ddd-rails-modeling
ddd-ubiquitous-language
engines
rails-engine-compatibility
rails-engine-docs
rails-engine-extraction
rails-engine-installers
rails-engine-release
rails-engine-reviewer
rails-engine-testing
infrastructure
rails-api-versioning
rails-background-jobs
rails-database-seeding
rails-frontend-hotwire
rails-migration-safety
rails-performance-optimization
orchestration
rails-skills-orchestrator
patterns
ruby-service-objects
strategy-factory-null-calculator
yard-documentation
planning
create-prd
generate-tasks
ticket-planning
testing
rails-bug-triage
rails-tdd-slices
rspec-best-practices
rspec-service-testing
workflows