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Use when bundling TypeScript libraries - provides tsdown configuration, dual ESM/CJS output, .d.ts generation, and plugin authoring
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Generate multiple radically different interface designs for a module using parallel sub-agents. Use when designing an API, exploring interface options, comparing module shapes, or "design it twice".
Conversational refactor planner - interview, scope, plan tiny atomic commits. Use when planning a refactor that needs careful incremental steps.
Conversational PRD writer - interview, scope, write, then create Linear/GitHub issue. Use when planning a new feature or product requirement.
Use when managing Node.js dependencies with pnpm - provides workspace setup, catalogs, CLI commands, overrides, and CI configuration
Use when setting up Vite projects - provides dev server, HMR, build configuration, library mode, and plugin authoring patterns
| name | tsdown |
| description | Use when bundling TypeScript libraries - provides tsdown configuration, dual ESM/CJS output, .d.ts generation, and plugin authoring |
| license | MIT |
Rolldown + Oxc powered TypeScript bundler. Drop-in tsup replacement.
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
| Task | File |
|---|---|
| Config file, CLI, entry points | config.md |
| Format, target, dts, exports | output.md |
| Shims, unbundle, watch, frameworks | features.md |
| Plugins, hooks, programmatic, migration | advanced.md |
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