Implements reliable functional programming patterns like Algebraic Data Types, Result types, and branded types to ensure maximum TypeScript type safety.
This skill empowers developers to build bulletproof TypeScript applications by leveraging Algebraic Data Types (ADTs), exhaustive pattern matching, and nominal typing. By encoding business logic directly into the type system, it helps Claude prevent runtime errors, handle optionality without nulls, and manage complex state transitions using discriminated unions. It is an essential tool for domain-driven design, providing patterns that make illegal states unrepresentable and ensuring that refactoring remains safe and mechanical.
Características Principales
01Type-safe Result and Option types for explicit error and null handling
02Exhaustiveness checking patterns using the assertNever utility
0318 GitHub stars
04Discriminated unions for exhaustive pattern matching and state modeling
05Smart constructors to enforce domain validation at the type level
06Branded types for nominal typing and preventing unit confusion
Casos de Uso
01Enforcing domain-specific units like Cents, Milliseconds, or validated Email types
02Modeling complex state machines for transaction lifecycles or UI states
03Replacing legacy try/catch blocks with explicit, recoverable error handling