SvelteKit llms.txt · AI Docs Browser · mdream [llms.txt Tools](https://mdream.dev/llms-txt/sveltekit/llms-txt) # SvelteKit llms.txt Browse SvelteKit documentation as markdown. Click any page in the sidebar to view it, or copy the full llms.txt for your AI tools. svelte.dev/llms.txt [Raw llms.txt](https://svelte.dev/docs/kit/llms.txt) [Raw llms-full.txt](https://svelte.dev/llms-full.txt) Copy Markdown [](https://svelte.dev/llms.txt) llms.txt Before we begin What is SvelteKit? What is Svelte? SvelteKit vs Svelte Svelte Editor setup Default rendering Static site generation Single-page app Multi-page app Separate backend Serverless app Your own server Container Library Offline app Mobile app Desktop app Browser extension Embedded device Project files svelte-package param matchers routes hooks hooks service worker observability Other files Fetch APIs FormData Stream APIs URL APIs Web Crypto +page +error +layout +server $types Other files Further reading Tutorial: Routing Tutorial: API routes Docs: Advanced routing Page data Layout data page.data Universal vs server Using URL data Making fetch requests filterSerializedResponseHeaders Cookies Headers Using parent data Errors Redirects Streaming with promises Parallel loading Rerunning load functions invalidate(url) invalidateAll() Implications for authentication (When do load functions rerun?) hooks Using getRequestEvent Further reading Tutorial: Loading data Tutorial: Errors and redirects Tutorial: Advanced loading Default actions Named actions Anatomy of an action Loading data Progressive enhancement applyAction reset focus Alternatives GET vs POST Further reading Tutorial: Forms prerender entries entries ssr csr progressively enhanced trailingSlash config Further reading Tutorial: Page options Avoid shared state on the server No side-effects in load Using state and stores with context Component and page state is preserved Storing state in the URL Storing ephemeral state in snapshots Overview query query.batch query.live form command Single-flight mutations prerender Handling validation errors Using getRequestEvent Redirects $env/static/private $env/static/public $env/dynamic/private $env/dynamic/public Explicit environment variables $app/env/private $app/env/public During the build Preview your app @sveltejs/adapter-cloudflare @sveltejs/adapter-netlify @sveltejs/adapter-node @sveltejs/adapter-static @sveltejs/adapter-vercel Using adapters Platform-specific context Cloudflare Pages Netlify Vercel Azure Static Web Apps AWS via SST Google Cloud Run Environment-specific configuration Adding community adapters Usage Deploying Environment variables Options Graceful shutdown IDLE_TIMEOUT Socket activation Custom server Usage Zero-config support Vercel Options GitHub Pages Usage Prerendering individual pages Apache Comparisons Usage Options Cloudflare Workers Cloudflare Pages Runtime APIs Headers and redirects Troubleshooting Migrating from Workers Sites Usage Options Basic Configuration Runtime APIs Troubleshooting Usage Netlify Edge Functions Netlify alternatives to SvelteKit functionality Troubleshooting Usage Deployment configuration edge network regions increased maximum execution duration Image Optimization Incremental Static Regeneration Environment variables Skew protection Notes Troubleshooting Rest parameters Optional parameters Matching Sorting matchers Encoding Advanced layouts Further reading Tutorial: Advanced Routing Server hooks Shared hooks Universal hooks Further reading Tutorial: Hooks Error objects Expected errors Unexpected errors Rendering errors Responses Type safety Further reading Tutorial: Errors and redirects Tutorial: Hooks data-sveltekit-preload-data data-sveltekit-preload-code data-sveltekit-reload data-sveltekit-replacestate data-sveltekit-keepfocus data-sveltekit-noscroll Disabling options Inside the service worker Manual registration Updating the service worker Other solutions References Private environment variables Server-only utilities Your modules How it works Further reading Tutorial: Environment variables API Loading data for a route Caveats sequence load Form actions Remote functions Augmenting the built-in tracing Development quickstart @opentelemetry/api disable generation Anatomy of a package.json TypeScript Best practices Source maps Options Publishing Caveats Sessions vs tokens Integration points Libraries Guides Diagnosing issues Performance Performance Performance enhancing the performance of your webpage Optimizing assets Handbrake lazy-load videos FFmpeg Reducing code size Navigation web fonts single page app (SPA) mode server load functions Hosting Further reading CSS Svelte Vite's built-in handling @sveltejs/enhanced-img Loading images dynamically from a CDN Best practices largest contentful paint (LCP) cumulative layout shift (CLS) Route announcements Focus management The "lang" attribute Further reading MDN Web Docs: Accessibility The A11y Project How to Meet WCAG (Quick Reference) Out of the box Manual setup Other resources What can I make with SvelteKit? How do I include details from package.json in my application? How do I fix the error I'm getting trying to include a package? svelte-package How do I use the view transitions API? How do I set up a database? How do I use a client-side library accessing document or window? How do I use a different backend API server? How do I use middleware? How do I use Yarn? vitePreprocess Add-ons Packages Additional integrations Vite plugins Integration FAQs Visual Studio Code Other Editors WebStorm Svelte: Debug Your Application Debugging JavaScript Frameworks in Neovim Google Chrome and Microsoft Edge Developer Tools References Debugging Node.js redirect and error are no longer thrown by you path is required when setting cookies Top-level promises are no longer awaited goto(...) changes paths are now relative by default Server fetches are not trackable anymore preloadCode arguments must be prefixed with base resolvePath has been removed Improved error handling Dynamic environment variables cannot be used during prerendering form and data have been removed from use:enhance callbacks Forms containing file inputs must use multipart/form-data Generated tsconfig.json is more strict getRequest no longer throws errors vitePreprocess is no longer exported from @sveltejs/kit/vite Updated dependency requirements SvelteKit 2.12: $app/stores deprecated package.json adapter adapter Project files Pages and layouts Endpoints Integrations FAQs Examples sveltejs/realworld A HackerNews clone svelte.dev Support CSR Edge Hybrid app Hydration ISR MPA Prerendering PWA Routing SPA SSG SSR Server VERSION error fail invalid isActionFailure isHttpError isRedirect isValidationError json normalizeUrl redirect text Action ActionFailure ActionResult Actions Adapter AfterNavigate AwaitedActions BeforeNavigate Builder ClientInit Config Cookies here here here here here Emulator EnvVarConfig server-only module Handle HandleClientError HandleFetch HandleServerError HandleValidationError HttpError InvalidField KitConfig LessThan LiveQueryRequestedResult LiveRequestedEntry Load LoadEvent filterSerializedResponseHeaders LoadProperties Navigation NavigationBase NavigationEnter NavigationEvent NavigationExternal NavigationFormSubmit NavigationGoto NavigationLeave NavigationLink NavigationPopState NavigationTarget NavigationType NumericRange OnNavigate Page ParamMatcher PrerenderOption QueryRequestedResult Redirect RemoteCommand RemoteForm RemoteFormEnhanceCallback RemoteFormEnhanceInstance RemoteFormField RemoteFormFieldType RemoteFormFieldValue RemoteFormFields RemoteFormInput RemoteFormIssue RemoteLiveQuery RemoteLiveQueryFunction RemotePrerenderFunction RemoteQuery RemoteQueryFunction RemoteQueryOverride RemoteQueryUpdate RemoteResource RequestEvent filterSerializedResponseHeaders RequestHandler RequestedEntry RequestedResult Reroute ResolveOptions RouteDefinition SSRManifest ServerInit ServerInitOptions ServerLoad ServerLoadEvent Snapshot SubmitFunction Transport Transporter ValidationError Private types AdapterEntry Csp CspDirectives DeepPartial HasNonOptionalBoolean HttpMethod IsAny Logger MaybePromise PrerenderEntryGeneratorMismatchHandler PrerenderEntryGeneratorMismatchHandlerValue PrerenderHttpErrorHandler PrerenderHttpErrorHandlerValue PrerenderInvalidUrlHandler PrerenderInvalidUrlHandlerValue PrerenderMap PrerenderMissingIdHandler PrerenderMissingIdHandlerValue PrerenderOption PrerenderUnseenRoutesHandler PrerenderUnseenRoutesHandlerValue Prerendered RequestOptions RouteSegment TrailingSlash defineEnvVars sequence installPolyfills createReadableStream getRequest setResponse sveltekit browser building dev version browser building dev version applyAction deserialize enhance afterNavigate beforeNavigate disableScrollHandling goto invalidate invalidateAll onNavigate preloadCode preloadData pushState refreshAll replaceState asset assets base match resolve resolveRoute command form getRequestEvent prerender query read requested query navigating page loading data form actions shallow routing updated getStores navigating page updated Asset RouteId Pathname ResolvedPathname RouteParams LayoutParams config.kit.env.privatePrefix config.kit.env.publicPrefix config.kit.env.privatePrefix config.kit.env.publicPrefix base build files prerendered version Config KitConfig adapter alias appDir csp csrf embedded env experimental files monorepos monorepos monorepos monorepos monorepos monorepos monorepos monorepos monorepos monorepos monorepos monorepos inlineStyleThreshold moduleExtensions outDir output paths prerender router serviceWorker typescript version svelte-kit sync Generated types $lib app.d.ts Error Locals PageData PageState Platform ## What is SvelteKit's llms.txt? SvelteKit publishes an `/llms.txt` file that provides AI systems with a structured index of its documentation. It follows the [llms.txt specification](https://llmstxt.org), organizing links to guides, API references, and tutorials under section headings so that LLMs like ChatGPT, Claude, and Gemini can quickly understand what SvelteKit offers and where to find details. Issues Spec 469 Sections 109 Links 573.7 KB Size ~146.6k Tokens Sections: Before we begin · What is SvelteKit? · What is Svelte? · SvelteKit vs Svelte · Editor setup · Default rendering · and 463 more ## Add SvelteKit Docs to Your AI Assistant Select your tool to see how to add SvelteKit's llms.txt as a documentation source. Cursor Windsurf Claude Code ChatGPT Zed Copilot 1. 1 Open any chat or composer panel 2. 2 Type @Docs and select "Add new doc" 3. 3 Paste the URL: https://svelte.dev/llms.txt 4. 4 Wait for the green dot (indexing complete) 5. 5 Reference @Docs in chat when asking about SvelteKit Cursor crawls the URL and indexes all subpages. Add a trailing slash to index child pages too. ## Spec Compliance 184 errors ## Frequently Asked Questions Where is SvelteKit's llms.txt file? SvelteKit publishes its llms.txt at https://svelte.dev/llms.txt. This file provides a structured, markdown-formatted index of SvelteKit's documentation that AI systems can consume to understand the project's APIs, guides, and references. How do I use SvelteKit's llms.txt with AI coding assistants? Copy the llms.txt content and paste it into your AI assistant (Cursor, Windsurf, Claude, ChatGPT) as context. This gives the AI an accurate map of SvelteKit's documentation so it can provide better code suggestions and answers about SvelteKit. What does SvelteKit's llms.txt contain? SvelteKit's llms.txt contains 469 sections and 109 documentation links in 573.7 KB (~146.6k tokens). Key sections include Before we begin, What is SvelteKit?, What is Svelte?, SvelteKit vs Svelte, Editor setup, Default rendering. How many tokens does SvelteKit's llms.txt use? The concise llms.txt index is approximately 146.6k tokens (573.7 KB). Most AI assistants can fit this within their context window. For the full expanded documentation, look for an llms-full.txt variant which embeds all content inline. What is SvelteKit? Web development, streamlined. SvelteKit's llms.txt file helps AI systems understand this by providing a structured overview of its documentation, making it easier for developers to get accurate AI-assisted help when working with SvelteKit. Can I generate an llms.txt for my own project? Yes. Use the free llms.txt generator at mdream.dev/tools/llms-txt/generator to crawl your site and produce a spec-compliant llms.txt file. You can also validate existing files with the llms.txt validator. ## Browse More llms.txt Files [SolidJS Simple and performant reactivity for building user interfaces](https://mdream.dev/llms-txt/sveltekit/llms-txt/solidjs) [Svelte Cybernetically enhanced web apps](https://mdream.dev/llms-txt/sveltekit/llms-txt/svelte) [Analog The fullstack Angular meta-framework](https://mdream.dev/llms-txt/sveltekit/llms-txt/analog) [Next.js The React Framework for the Web](https://mdream.dev/llms-txt/sveltekit/llms-txt/nextjs) [Waku The minimal React framework](https://mdream.dev/llms-txt/sveltekit/llms-txt/waku) [Nuxt The Intuitive Vue Framework](https://mdream.dev/llms-txt/sveltekit/llms-txt/nuxt) [Elysia Ergonomic framework for Humans](https://mdream.dev/llms-txt/sveltekit/llms-txt/elysia) [Vue.js The Progressive JavaScript Framework](https://mdream.dev/llms-txt/sveltekit/llms-txt/vue) [View all 99 projects ](https://mdream.dev/llms-txt/sveltekit/llms-txt) ## Related Tools [

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