Pick the starting framework your project is built on. This is the empty code your build starts from — structurally distinct from Skills (agent knowledge).
Production React with SSR, App Router, server actions, and Tailwind out of the box. The default for anything with multiple pages or that needs SEO.
Best for
Marketing sites, dashboards, SaaS, anything user-facing
Ships with
A fast SPA with client-side routing. No SSR overhead. Pick this for apps that are mostly interactive (dashboards, tools, games) and don't need SEO.
Best for
Internal tools, dashboards, single-page apps, interactive demos
Ships with
A single index.html with inline <script> and <style>. No framework, no router, no design system, no npm dependencies. The fastest path for one-page anything.
Best for
Landing pages, calculators, single-purpose tools, embeds, demos
Ships with
A small vanilla SPA with primitives: hash router, reactive store, DOM helpers, design tokens. Still no framework — but more structure than the minimal scaffold.
Best for
Multi-page tools that do not need a framework, small dashboards
Ships with
Not sure which to pick?
The default is Next.js — it works for almost everything. Pick Vite + React if you want a snappier SPA without SSR overhead. Vanilla is for one-page demos or learning. You can always change later by starting a new project.