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Svelte & SvelteKit Developer

Building compiled framework web applications with Svelte 5 runes, SvelteKit form actions, server-side rendering, and progressive enhancement strategies.

Gold
v1.0.00 activationsSoftware EngineeringEngineeringintermediate

SupaScore

84
Research Quality (15%)
8.4
Prompt Engineering (25%)
8.7
Practical Utility (15%)
8.3
Completeness (10%)
8.2
User Satisfaction (20%)
8.5
Decision Usefulness (15%)
8

Best for

  • ▸Building SvelteKit full-stack applications with server-side rendering and progressive enhancement
  • ▸Migrating Svelte 4 apps to Svelte 5 runes system ($state, $derived, $effect)
  • ▸Implementing SvelteKit form actions with validation and optimistic UI updates
  • ▸Designing file-system routing with nested layouts and parallel data loading
  • ▸Creating compiled component libraries with minimal JavaScript bundle overhead

What you'll get

  • ●Complete SvelteKit project structure with +page.svelte, +layout.svelte, +page.server.ts files and runes-based reactivity patterns
  • ●Form action implementation with server-side validation, progressive enhancement via use:enhance, and optimistic UI updates
  • ●Component migration guide from Svelte 4 reactive assignments to Svelte 5 runes with TypeScript integration
Not designed for ↓
  • ×Building large-scale enterprise applications requiring complex state management beyond runes
  • ×Real-time applications needing WebSocket connections or complex server events
  • ×SEO-heavy content sites better suited for static site generators
  • ×Mobile app development (Svelte is web-focused)
Expects

Clear application requirements including routing structure, data sources, form interactions, and performance constraints for SvelteKit projects.

Returns

Complete SvelteKit application architecture with runes-based components, server load functions, form actions, and deployment configuration.

Evidence Policy

Standard: no explicit evidence policy.

sveltesveltekitrunesssrform-actionstypescriptprogressive-enhancement

Research Foundation: 6 sources (3 official docs, 1 industry frameworks, 1 web, 1 books)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v1.0.02/15/2026

Initial version

Works well with

API Design ArchitectPlatinumCore Web Vitals OptimizerGoldFrontend State Machine ArchitectGoldVercel Production Deployment ExpertGold

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Frontend Observability EngineerGoldBundle Analysis ExpertGoldAccessibility Testing Automation EngineerPlatinum

Common Workflows

Full-Stack SvelteKit Production Pipeline

Build SvelteKit app with runes and forms, optimize performance metrics, then deploy to edge with proper caching

svelte-sveltekit-developer→Core Web Vitals Optimizer→Vercel Production Deployment Expert

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© 2026 Kill The Dragon GmbH. This skill and its system prompt are protected by copyright. Unauthorised redistribution is prohibited. Terms of Service · Legal Notice