Skill

tsdown

Configures tsdown bundler for TypeScript libraries, enabling dual ESM/CJS outputs, .d.ts generation, package validation, and plugin authoring. Use for npm publishing and Vue/React components.

Typescript

React

Vue

developer-tools

Install

npx claudepluginhub onmax/nuxt-skills --plugin nuxt-skills

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Rolldown + Oxc powered TypeScript bundler. Drop-in tsup replacement.

Supporting Assets

references/advanced.mdreferences/config.mdreferences/features.mdreferences/output.md

SKILL.md

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Stats

Stars644

Forks28

Last CommitFeb 1, 2026

Actions

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tsdown

Rolldown + Oxc powered TypeScript bundler. Drop-in tsup replacement.

When to Use

Building TypeScript libraries
Generating .d.ts declarations
Publishing npm packages
Dual ESM/CJS output
Vue/React component libraries

Quick Start

npm i -D tsdown typescript

// tsdown.config.ts
import { defineConfig } from 'tsdown'

export default defineConfig({
  entry: 'src/index.ts',
  format: 'esm',
  dts: true,
  exports: true,
})

tsdown           # Build
tsdown --watch   # Watch mode

Reference Files

Task	File
Config file, CLI, entry points	config.md
Format, target, dts, exports, validation	output.md
Shims, unbundle, watch, frameworks, WASM	features.md
Plugins, hooks, lint, programmatic, migration	advanced.md

Loading Files

Consider loading these reference files based on your task:

references/config.md - if setting up tsdown.config.ts, CLI, or entry points
references/output.md - if configuring output format, target, .d.ts, exports, or validation
references/features.md - if using shims, unbundle, watch mode, framework integrations, or WebAssembly
references/advanced.md - if writing plugins, using linting/validation, programmatic API, or migrating from tsup

DO NOT load all files at once. Load only what's relevant to your current task.

Cross-Skill References

Library patterns → Use ts-library skill
Vue component libs → Use vue skill
Package management → Use pnpm skill