Design Pattern Skills for Claude Code

A comprehensive collection of 50 software design patterns with runnable TypeScript examples.

Installation

Add this as a plugin marketplace in Claude Code:

/plugin marketplace add https://github.com/keohanoi/design-pattern-skills

Then install:

/plugin install design-pattern-skills@design-pattern-skills

Patterns Included

Creational (5)

Singleton, Factory Method, Abstract Factory, Builder, Prototype

Structural (7)

Adapter, Bridge, Composite, Decorator, Facade, Flyweight, Proxy

Behavioral (11)

Observer, Strategy, Command, State, Chain of Responsibility, Mediator, Memento, Template Method, Visitor, Iterator, Interpreter

Concurrency (4)

Thread Pool, Producer-Consumer, Read-Write Lock, Double-Checked Locking

Architectural (8)

MVC, MVP, MVVM, Layered, Microservices, Event-Driven, Client-Server, CQRS

Enterprise (9)

Repository, Service Layer, Unit of Work, Dependency Injection, DAO, API Gateway, Circuit Breaker, Retry, Saga

Other (6)

Null Object, Lazy Initialization, Object Pool, Specification, Event Sourcing, Pub-Sub

Usage

Skills are automatically triggered when you ask about a pattern:

• "When should I use the Singleton pattern?"
• "Implement a Factory Method for my database"
• "Show me how to use Circuit Breaker"
• "What's the difference between Observer and Pub-Sub?"

Commands

• /review-patterns - Review code for pattern opportunities
• /recommend-pattern - Get pattern suggestions for a problem

Code Examples

Each pattern includes runnable TypeScript examples:

bun run skills/singleton/examples/singleton.ts
bun run skills/circuit-breaker/examples/circuit-breaker.ts
bun run skills/observer/examples/observer.ts

Structure

design-pattern-skills/
├── .claude-plugin/
│   ├── plugin.json
│   └── marketplace.json
├── commands/
│   ├── review-patterns.md
│   └── recommend-pattern.md
├── skills/               # 50 patterns
│   ├── singleton/
│   ├── observer/
│   └── ...
├── CLAUDE.md
└── README.md

License

MIT