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tsdown is a fast and elegant TypeScript library bundler powered by Rolldown and Oxc
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Render a document, a diagram, or a report as HTML for human visualisation.
Use when writing prose meant to read by humans: PR descriptions, docs, blog drafts, emails, design memos
Guidelines on creating issues on GitHub
Run a premortem on any plan, launch, product, hire, strategy, or decision. Assumes it already failed 6 months from now and works backward to find every reason why. Produces a revised plan with blind spots exposed. MANDATORY TRIGGERS: 'premortem this', 'premortem my', 'run a premortem', 'what could kill this', 'future-proof this', 'stress test this plan', 'what am i missing here', 'find the blind spots'. STRONG TRIGGERS: 'what could go wrong', 'am i missing anything', 'poke holes in this', 'where will this break', 'devil's advocate this'. Do NOT trigger on simple feedback requests, or factual questions. DO trigger when someone has a plan or commitment where the cost of being wrong is high.
Schedule a prompt to fire back at yourself at a future time or on a recurring cron pattern. Use when the user says "remind me", "every N minutes/hours/days", "at HH:MM tomorrow", "check X periodically", or otherwise asks for any time-based action. Triggered by the `schedule` tool plus the `/schedule` command for listing and deletion.
Interview the user relentlessly about a plan or design until reaching shared understanding, resolving each branch of the decision tree. Use when user wants to stress-test a plan, get roasted on their design, or mentions "brainstorm".
| name | tsdown |
| description | tsdown is a fast and elegant TypeScript library bundler powered by Rolldown and Oxc |
| metadata | {"author":"Anthony Fu","version":"2026.1.28","source":"Generated from https://github.com/rolldown/tsdown, scripts located at https://github.com/antfu/skills"} |
tsdown is a next-generation TypeScript library bundler built on Rolldown and Oxc. It provides blazing-fast builds, automatic .d.ts generation, and seamless migration from tsup. Supports Rolldown/Rollup/Unplugin plugins and features smart dependency handling.
This documentation is based on tsdown v0.20.1.
Anthony's Preferences:
dts option for type declarationsexports option for auto-generated package exports| Topic | Description | Reference |
|---|---|---|
| Configuration | Config file setup, defineConfig, multiple configs | core-config |
| CLI | Command-line interface and options | core-cli |
| Entry Points | Entry files, aliases, glob patterns | core-entry |
| Topic | Description | Reference |
|---|---|---|
| Output | Format (ESM/CJS/IIFE/UMD), directory, target, platform | options-output |
| Declaration Files | .d.ts generation, isolatedDeclarations, sourcemaps | options-dts |
| Dependencies | External, noExternal, dependency bundling | options-dependencies |
| Package Exports | Auto-generating exports, main, module fields | options-package-exports |
| Topic | Description | Reference |
|---|---|---|
| Optimization | Tree shaking, minification, sourcemaps | features-optimization |
| Shims | CJS/ESM compatibility shims | features-shims |
| Unbundle Mode | Bundleless transpile-only builds | features-unbundle |
| Watch Mode | Auto-rebuild on file changes | features-watch |
| Topic | Description | Reference |
|---|---|---|
| Plugins | Rolldown, Unplugin, Rollup, Vite plugins | advanced-plugins |
| Hooks | Build lifecycle hooks | advanced-hooks |
| Programmatic API | Using tsdown from code | advanced-programmatic |
| Rolldown Options | Customizing inputOptions and outputOptions | advanced-rolldown-options |
| Topic | Description | Reference |
|---|---|---|
| Framework Support | Vue and React library bundling | recipes-frameworks |
| Migration | Migrating from tsup | recipes-migration |