Generates a print-ready HTML invoice with all the standard pieces: sender and recipient blocks, itemized line items table, subtotal with tax and retainer calculations, and payment instructions at the bottom. The layout is two-column for addresses, right-aligned for totals, and includes a print stylesheet to strip backgrounds when you send it to PDF. Triggers on "invoice", "bill", or the Chinese equivalents. It's built for desktop prototype mode and expects you to feed it a design system so the typography and colors match your brand. Useful when a client asks for a billing page and you want something cleaner than exporting from accounting software.
npx skills add https://github.com/nexu-io/open-design --skill invoice