ts-library

Complete reference guide for authoring TypeScript libraries and npm packages. Patterns for authoring high-quality TypeScript libraries, extracted from studying unocss, shiki, unplugin, vite, vitest, vueuse, zod, trpc, drizzle-orm, and more. For Nuxt module development: use nuxt-modules skill Consider loading these reference files based on your task: DO NOT load all files at once. Load only what's relevant to your current task. Token efficiency: Main skill ~300 tokens, each reference ~800-1200 tokens - Covers project setup, package.json exports configuration, tsconfig optimization, and dual CJS/ESM build tooling with tsdown or unbuild - Includes API design patterns (builder, factory, plugin systems), advanced type inference techniques, and tree-shaking best practices - Provides vitest testing setup, release workflow configuration, and GitHub Actions CI/CD templates - Organized as modular reference files—load only what's relevant to your current task to minimize token usage - Starting a new TypeScript library (single or monorepo) - Setting up package.json exports for dual CJS/ESM - Configuring tsconfig for library development - Choosing build tools (tsdown, unbuild) - Designing type-safe APIs (builder, factory, plugin patterns) - Writing advanced TypeScript types - Setting up vitest for library testing - Configuring release workflow and CI - Create project structure → load...