What is the tsdown skill for Claude Code?

It is a specialized capability that allows Claude to assist with configuring and executing high-performance TypeScript bundling using the tsdown tool.

How do I start a build with this skill?

Claude can help you install the necessary dependencies and generate a tsdown.config.ts file to manage your build and watch modes.

Can this skill help me generate type declarations?

Absolutely. The skill provides guidance on configuring automatic .d.ts file generation to ensure your libraries are fully type-safe for end users.

Is tsdown a replacement for tsup?

Yes, tsdown is designed as a drop-in replacement for tsup that utilizes the faster Rolldown and Oxc engines for significantly improved build speeds.

Does tsdown support dual ESM and CJS output?

Yes, it is optimized for creating packages that work across both modern ESM environments and legacy CommonJS systems.

TSDown TypeScript Bundler

Name: TSDown TypeScript Bundler
Author: onmax

byonmax

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498

開発者ツール

Streamlines TypeScript library bundling using Rolldown and Oxc for high-performance ESM and CJS distribution.

概要

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.

主な機能

Seamless dual-format output for ESM and CommonJS
498 GitHub stars
Automatic .d.ts type declaration generation and management
Plugin support for extending build-time capabilities
Integrated package validation and export configuration
High-speed bundling powered by Rolldown and Oxc engines

ユースケース

Publishing modern TypeScript libraries to the npm registry
Bundling Vue or React component libraries with built-in type support
Migrating legacy tsup build configurations to higher-performance tooling

概要

主な機能

Seamless dual-format output for ESM and CommonJS
498 GitHub stars
Automatic .d.ts type declaration generation and management
Plugin support for extending build-time capabilities
Integrated package validation and export configuration
High-speed bundling powered by Rolldown and Oxc engines

ユースケース

Publishing modern TypeScript libraries to the npm registry
Bundling Vue or React component libraries with built-in type support
Migrating legacy tsup build configurations to higher-performance tooling