Type-Safe TypeScript Development

About

This skill empowers Claude to write production-grade TypeScript by enforcing strict configurations, implementing Zod runtime validation, and utilizing advanced patterns like branded types and Result types. It is designed for developers who want to move beyond basic typing to create robust, self-documenting codebases that leverage the latest features of TypeScript 5.5+, ensuring that errors are caught at compile-time rather than runtime through patterns like discriminated unions and exhaustive matching.

Key Features

• Advanced domain modeling with branded types and discriminated unions
• 18 GitHub stars
• Enforcement of strict TypeScript configurations and type-only imports
• Implementation of Result types for explicit error handling
• Runtime validation and schema inference using Zod
• Integration of modern TS 5.5+ features like inferred predicates and resource management

Use Cases

• Developing complex state machines using exhaustive discriminated unions
• Refactoring legacy projects to eliminate any types and non-null assertions
• Building type-safe API boundaries and environment variable validation