Deco TanStack Navigation Migration

Complete playbook for replacing Fresh/Deno navigation with TanStack Router in Deco storefronts. Goes beyond simple <a> to <Link> — covers the full power of the router to build sites that feel like native apps while keeping SSR-first SEO.

When to Use This Skill

• Migrating a Fresh/Deno storefront to TanStack Start
• Links cause full page reloads instead of SPA transitions
• Filters, sort, or search reload the entire page
• Forms submit via GET and append query params
• Navigation feels slow (no prefetching)
• Menus don't highlight the active page
• Need type-safe route params
• Want URL as the single source of truth for filters/pagination

Architecture: SSR-First, Hydrate Smart