SvelteKit Builder

Expert guidance for building production-ready SvelteKit applications with Svelte 5 runes, remote functions, and modern best practices.

When to Use This Skill

Use this skill when:

• Scaffolding new SvelteKit projects with Svelte 5
• Migrating from Svelte 4 to Svelte 5 (reactivity model changed fundamentally)
• Implementing remote functions (SvelteKit's type-safe server functions)
• Optimizing performance (bundle size, SSR, hydration, rendering)
• Applying security patterns (XSS prevention, input validation, secret management)
• Integrating recommended stack (Kysely, Better Auth, shadcn-svelte, Lucide, AI SDK)
• Code reviews where Svelte/SvelteKit patterns need validation
• Debugging reactivity issues or SSR hydration mismatches

Knowledge Base Structure

This skill contains 105+ best practice rules organized by impact and category: