Streamlines TypeScript library bundling using Rolldown and Oxc for high-performance ESM and CJS distribution.
The tsdown skill empowers Claude to efficiently manage and configure TypeScript library builds using modern, high-speed tooling. As a drop-in replacement for tsup, it leverages Rolldown and Oxc to provide rapid bundling, automatic type declaration generation, and dual ESM/CJS output. This skill is particularly useful for developers building npm packages, UI component libraries, or complex TypeScript utilities that require precise export validation and optimized build pipelines.
Key Features
01Seamless dual-format output for ESM and CommonJS
02498 GitHub stars
03Automatic .d.ts type declaration generation and management
04Plugin support for extending build-time capabilities
05Integrated package validation and export configuration
06High-speed bundling powered by Rolldown and Oxc engines
Use Cases
01Publishing modern TypeScript libraries to the npm registry
02Bundling Vue or React component libraries with built-in type support
03Migrating legacy tsup build configurations to higher-performance tooling
