Library Bundler

Expert skill for building, bundling, and publishing component libraries to NPM. Specializes in modern build tools (tsup 9, Vite 6), bundle optimization, multi-format exports, and package publishing workflows.

Technology Stack (2025)

Build Tools

• tsup 9 - Fast TypeScript bundler with zero config
• Vite 6 - Modern build tool with library mode
• esbuild 0.24 - Extremely fast JavaScript bundler
• Rollup 4 - When maximum control needed

Package Management

• npm 11 / pnpm 9 - Package managers
• changesets - Version management for monorepos
• provenance - Supply chain security