Vite Advanced Patterns
A wrapper around Vite 8 (Rolldown-powered), not a copy of its documentation.
Vite's own docs are the source of truth for config keys, API surface, and migration
mechanics. This skill carries the house delta plus four enforceable rules.
Vite 8 replaces the esbuild+Rollup pipeline with Rolldown (Rust-based unified
bundler) and is the default for new projects. advancedChunks supersedes
manualChunks; build.rollupOptions becomes build.rolldownOptions.
Upstream coverage (do not restate)
Fetch these from Vite rather than expecting them here. Rows marked with a rule keep a
narrower, enforceable house subset in that rule file: read the rule for the house
position, fetch the doc for the full API.
| Topic | Fetch from |
|---|
Vite 7 to 8 migration: rolldownOptions, transformWithOxc, moduleType: 'js', removed hooks and output formats, browser target bumps | https://vite.dev/guide/migration |
Rolldown adoption path, rolldown-vite, Oxc, advancedChunks group syntax (house subset stays in rules/vite-advanced-chunks.md) | https://vite.dev/guide/rolldown |
Build options: target, minify, sourcemap, cssCodeSplit, cssMinify, assetsInlineLimit, chunkSizeWarningLimit | https://vite.dev/config/build-options |
Dependency pre-bundling and optimizeDeps include/exclude/force | https://vite.dev/guide/dep-pre-bundling |
| SSR: client and server entry points, middleware-mode dev server, production server wiring, streaming | https://vite.dev/guide/ssr |
Environment API config and per-environment build output (house subset stays in rules/vite-environments.md) | https://vite.dev/guide/api-environment |
Environment API for plugins: this.environment, perEnvironmentPlugin, applyToEnvironment | https://vite.dev/guide/api-environment-plugins |
Environment API for frameworks: createBuilder, buildApp, ModuleRunner | https://vite.dev/guide/api-environment-frameworks |
Plugin hook reference, virtual modules, enforce/apply, handleHotUpdate (house subset stays in rules/vite-plugin-hooks.md) | https://vite.dev/guide/api-plugin |
Env variables and modes, .env files, the VITE_ prefix | https://vite.dev/guide/env-and-mode |
Deploying a static site and verifying with vite preview | https://vite.dev/guide/static-deploy |
Library mode is not in the table: references/library-mode.md and
rules/vite-lib-config.md still carry it in full.
House delta
Read ${CLAUDE_PLUGIN_ROOT}/skills/vite-advanced/references/ork-delta.md for the rules Vite's docs do not
state: the Vite 8 adoption path for existing production apps, the VITE_ secrets
rule, the production sourcemap setting, the house build budget, the vite preview
gate, chunk-name stability across the advancedChunks migration, the visualizer
diff requirement, and the node_modules/.vite cache-clearing step.
House config
Not a Vite tutorial: these are the settings the delta above makes non-negotiable, in the
shape we actually ship them.
import { defineConfig } from 'vite';
export default defineConfig({
build: {
sourcemap: 'hidden',
rollupOptions: {
output: {
advancedChunks: {
groups: [
{ name: 'vendor', test: /node_modules/, priority: 10 },
{ name: 'app', priority: 0 },
],
},
},
},
},
});
vite build && vite preview
npx vite-bundle-visualizer
rm -rf node_modules/.vite && vite --force
VITE_-prefixed variables are inlined into the client bundle at build time. They are
public bundle content, never secrets. Audit .env.production before deploy.
Rules
| Rule | Covers |
|---|
rules/vite-advanced-chunks.md | Chunk splitting: advancedChunks groups, priority, maxSize, minShareCount |
rules/vite-environments.md | environments config for client, SSR, and edge; per-environment outDir |
rules/vite-lib-config.md | Library mode externals, dual ESM/CJS output, exports map, type declarations |
rules/vite-plugin-hooks.md | Hook order, virtual modules via resolveId + load, enforce and apply |
Key Decisions
| Decision | Recommendation |
|---|
| New projects | Vite 8 (default) |
| Existing production apps | Stage the upgrade through rolldown-vite before committing |
| Multi-env builds | Environment API (environments config) |
| Plugin scope | Use this.environment for env-aware plugins |
| SSR | Middleware mode for dev, separate builds for prod |
| Chunks | advancedChunks for Vite 8, manualChunks for Vite 7 compat |
Related Skills
ork:react-server-components-framework - SSR integrationork:storybook-testing - Component testing with Vitestork:performance - Core Web Vitals targets behind the build budget
References
Load on demand with Read("${CLAUDE_PLUGIN_ROOT}/skills/vite-advanced/references/<file>"):
| File | Content |
|---|
ork-delta.md | House rules that Vite's docs do not state |
library-mode.md | Building publishable npm packages |
