tsdown

Original：🇺🇸 English

Translated

Use when bundling TypeScript libraries - provides tsdown configuration, dual ESM/CJS output, .d.ts generation, package validation, and plugin authoring

2installs

Sourceonmax/nuxt-skills

Added on2026-02-04

NPX Install

npx skill4agent add onmax/nuxt-skills tsdown

SKILL.md Content

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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

bash

npm i -D tsdown typescript

ts

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

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

bash

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

tsdown

NPX Install

Tags

SKILL.md Content

tsdown

When to Use

Quick Start

Reference Files

Loading Files

Cross-Skill References