About
This skill provides a comprehensive framework for building professional TypeScript libraries using the typescript-library-template pattern. It streamlines the setup and maintenance of npm packages by implementing modern tooling such as tsup for dual CommonJS/ESM builds, Vitest for testing, and a unified validation workflow. Whether starting a new project or migrating an existing one, it ensures consistent code quality through strict TypeScript configurations, automated formatting, and rigorous linting standards designed for modern JavaScript ecosystems.