nuxt4-patterns

Installation
SKILL.md

Nuxt 4 Patterns

Use when building or debugging Nuxt 4 apps with SSR, hybrid rendering, route rules, or page-level data fetching.

When to Activate

  • Hydration mismatches between server HTML and client state
  • Route-level rendering decisions such as prerender, SWR, ISR, or client-only sections
  • Performance work around lazy loading, lazy hydration, or payload size
  • Page or component data fetching with useFetch, useAsyncData, or $fetch
  • Nuxt routing issues tied to route params, middleware, or SSR/client differences

Hydration Safety

  • Keep the first render deterministic. Do not put Date.now(), Math.random(), browser-only APIs, or storage reads directly into SSR-rendered template state.
  • Move browser-only logic behind onMounted(), import.meta.client, ClientOnly, or a .client.vue component when the server cannot produce the same markup.
  • Use Nuxt's useRoute() composable, not the one from vue-router.
  • Do not use route.fullPath to drive SSR-rendered markup. URL fragments are client-only, which can create hydration mismatches.
  • Treat ssr: false as an escape hatch for truly browser-only areas, not a default fix for mismatches.
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