sveltekit-structure - SKILL.md Agent Skill

name: sveltekit-structure

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description: "SvelteKit structure guidance. Use for routing, layouts, error handling, SSR, or svelte:boundary. Covers file naming, nested layouts, error boundaries, pending UI, and hydration." metadata: last_updated: "2026-05-31" verified_against: "Svelte 5 official docs and sveltejs/svelte#18282"

SvelteKit Structure

Quick Start

File types: +page.svelte (page) | +layout.svelte (wrapper) | +error.svelte (error boundary) | +server.ts (API endpoint)

Routes: src/routes/about/+page.svelte → /about | src/routes/posts/[id]/+page.svelte → /posts/123

Layouts: Apply to all child routes. +layout.svelte at any level wraps descendants.

Example

src/routes/
├── +layout.svelte              # Root layout (all pages)
├── +page.svelte                # Homepage /
├── about/+page.svelte          # /about
└── dashboard/
    ├── +layout.svelte          # Dashboard layout (dashboard pages only)
    ├── +page.svelte            # /dashboard
    └── settings/+page.svelte   # /dashboard/settings

<!-- +layout.svelte -->
<script>
    let { children } = $props();
</script>

<nav><!-- Navigation --></nav>
<main>{@render children()}</main>
<footer><!-- Footer --></footer>

Reference Files

file-naming.md - File naming conventions
layout-patterns.md - Nested layouts
error-handling.md - +error.svelte placement
svelte-boundary.md - Component-level error/pending
ssr-hydration.md - SSR and browser-only code

Notes

Layouts: {@render children()} | Errors: +error.svelte above failing route
Groups: (name) folders don't affect URL | Client-only: check browser
Last verified: 2026-05-14