Next Stack (App Router + Prisma + TanStack Query) Intent Provide a consistent decision framework + implementation checklist for this stack, so changes stay: - correct in server/client boundaries, - consistent with UI & data patterns, - testable and PR-ready. When to use Activate this skill when the task involves any of: - Next.js App Router pages/layouts/route handlers/server actions - Prisma-backed reads/writes - client mutations, optimistic UI, live updates (TanStack Query) - forms & validation (RHF + Zod) - shadcn/ui + Tailwind components under Non-negotiables (stack rules) 1) Server Compo…