tsdown

Original：🇺🇸 English
Translated

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

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Sourceonmax/nuxt-skills
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NPX Install

npx skill4agent add onmax/nuxt-skills tsdown

Tags

Translated version includes tags in frontmatter
tsdowntypescript-bundlingesm-cjs-outputdts-generationnpm-publishing

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

TaskFile
Config file, CLI, entry pointsconfig.md
Format, target, dts, exports, validationoutput.md
Shims, unbundle, watch, frameworks, WASMfeatures.md
Plugins, hooks, lint, programmatic, migrationadvanced.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