typescript-patterns

This skill provides TypeScript-specific implementation patterns for type-safe, maintainable code.

When to Invoke This Skill

Automatically activate for:

• TypeScript/JavaScript project implementation
• Type system design and refinement
• Generic patterns and utility types
• Error handling with type safety
• API type definitions

Strict Typing Patterns

Branded Types for Domain Safety

// Prevent mixing IDs of different entities
type UserId = string & { readonly brand: unique symbol };
type OrderId = string & { readonly brand: unique symbol };