Agent skill · software engineering · aj-geddes
design-patterns-implementation
Apply appropriate design patterns (Singleton, Factory, Observer, Strategy, etc.) to solve architectural problems. Use when refactoring code architecture, implementing extensible systems, or following SOLID principles.
Why this skill is useful
Codifies design pattern application standards that the AI could infer but now doesn't have to guess.
What it needs
About 1k tokens when loaded. Last updated 2026-03-04. 307 stars on the source repository.
What this skill does
Design Patterns Implementation Table of Contents Overview When to Use Quick Start Reference Guides Best Practices Overview Apply proven design patterns to create maintainable, extensible, and testable code architectures. When to Use Solving common architectural problems Making code more maintainable and testable Implementing extensible plugin systems Decoupling components Following SOLID principles Code reviews identifying architectural issues Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents --- --- Singleton Pattern Singleton Pattern Factory Pattern Factory Pattern Observer Pattern Observer Pattern Strategy Pattern Strategy Pattern Decorator Pattern Decorator Pattern Repository Pattern Repository Pattern Dependency Injection Dependency Injection Best Practices ✅ DO Choose patterns that solve actual problems Keep patterns simple and understandable Document why patterns were chosen Consider testability Follow SOLID principles Use dependency injection Prefer composition over inheritance ❌ DON'T Apply patterns without understanding them Over-engineer simple solutions Force patterns where they don't fit Create unnecessary abstraction layers Ignore team familiarity with patterns
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aj-geddes/design-patterns-implementation