Does this skill support the latest TypeScript versions?

Yes, it is specifically optimized for TypeScript 5.4 through 5.7+, incorporating modern features like Inferred Type Predicates and the NoInfer utility.

How does it handle type assertions like 'as'?

The skill prioritizes the 'satisfies' operator and narrowing strategies, recommending 'as' only for genuine, unavoidable casts to maintain a higher standard of type safety.

What are branded types and why use them?

Branded types are a technique used to differentiate between identical primitive types (like UserId and OrderId) at compile time, preventing logic errors where IDs are accidentally swapped.

Can this skill help with monorepo performance?

Yes, it provides guidance for isolated declarations, which is critical for enabling parallel .d.ts emission and faster builds in large monorepo environments.

Does it include support for testing types?

It implements type-level testing patterns using @ts-expect-error and integrates with tools like vitest (expectTypeOf) to ensure your type logic is as tested as your runtime code.

Modern TypeScript Patterns

Name: Modern TypeScript Patterns
Author: hjemmesidekongen

byhjemmesidekongen

0•

개발자 도구

Implements advanced TypeScript features and safety patterns to ensure type-safe, maintainable codebases using the latest language standards.

The Modern TypeScript skill empowers Claude to go beyond basic syntax, utilizing advanced features from TypeScript 5.4 through 5.7 to build robust, type-level architectures. It focuses on eliminating type safety gaps by enforcing narrowing strategies, implementing branded types for domain safety, and leveraging the satisfies operator for precise inference. By automating exhaustive checks on discriminated unions and promoting type-level testing, this skill ensures that complex projects remain bug-free and architecturally sound while utilizing the most modern capabilities of the TypeScript compiler.

주요 기능

01Type-level testing patterns using @ts-expect-error and assertion libraries

020 GitHub stars

03Domain safety via branded types to prevent primitive type confusion

04Implementation of TS 5.4-5.7 features like NoInfer and inferred type predicates

05Transitioning from unsafe 'as' casts to type-safe 'satisfies' and narrowing

06Exhaustive pattern matching using discriminated unions and never-typed checks

사용 사례

01Developing high-performance monorepos requiring isolated declarations and parallel type-checking

02Refactoring legacy TypeScript code to utilize modern safety and inference features

03Architecting complex domain models where different IDs or string types must not be interchanged

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add hjemmesidekongen/ai typescript-modern

For use in Claude.ai and ChatGPT

주요 기능

01Type-level testing patterns using @ts-expect-error and assertion libraries

020 GitHub stars

03Domain safety via branded types to prevent primitive type confusion

04Implementation of TS 5.4-5.7 features like NoInfer and inferred type predicates

05Transitioning from unsafe 'as' casts to type-safe 'satisfies' and narrowing

06Exhaustive pattern matching using discriminated unions and never-typed checks

사용 사례

01Developing high-performance monorepos requiring isolated declarations and parallel type-checking

02Refactoring legacy TypeScript code to utilize modern safety and inference features

03Architecting complex domain models where different IDs or string types must not be interchanged