Vue 3 Development

Reference for Vue 3 Composition API patterns, component architecture, and testing practices.

Current stable: Vue 3.5+ with enhanced reactivity performance (-56% memory, 10x faster array tracking), new SSR features, and improved developer experience.

Overview

Progressive reference system for Vue 3 projects. Load only files relevant to current task to minimize context usage (~250 tokens base, 500-1500 per sub-file).

When to Use

Use this skill when:

• Writing .vue components
• Creating composables (use* functions)
• Building client-side utilities
• Testing Vue components/composables

Use nuxt skill instead for:

• Server routes, API endpoints
• File-based routing, middleware
• Nuxt-specific patterns

For styled UI components: use nuxt-ui skill For headless accessible components: use reka-ui skill For VueUse composables: use vueuse skill

Quick Reference

Working on...	Load file
.vue in components/	references/components.md
File in composables/	references/composables.md
File in utils/	references/utils-client.md
.spec.ts or .test.ts	references/testing.md
TypeScript patterns	references/typescript.md
Vue Router typing	references/router.md
Reactivity (ref, watch)	references/reactivity.md
Custom directives	references/directives.md
Provide/inject	references/provide-inject.md
Edge cases, vue-tsc	references/gotchas.md

Loading Files

Load one file at a time based on file context:

• Component work → references/components.md
• Composable work → references/composables.md
• Utils work → references/utils-client.md
• Testing → references/testing.md
• TypeScript → references/typescript.md
• Vue Router → references/router.md
• Reactivity → references/reactivity.md
• Custom directives → references/directives.md
• Provide/Inject → references/provide-inject.md
• Gotchas/edge cases → references/gotchas.md

DO NOT load all files at once - wastes context on irrelevant patterns.

Available Guidance

references/components.md - Props with reactive destructuring, emits patterns, defineModel for v-model, slots shorthand

references/composables.md - Composition API structure, VueUse integration, lifecycle hooks, async patterns, reactivity gotchas

references/utils-client.md - Pure functions, formatters, validators, transformers, when NOT to use utils

references/testing.md - Vitest + @vue/test-utils, component testing, composable testing, router mocking

references/typescript.md - InjectionKey for provide/inject, vue-tsc strict templates, tsconfig settings, generic components

references/router.md - Route meta types, typed params with unplugin-vue-router, scroll behavior, navigation guards

references/reactivity.md - ref, reactive, computed, watch, watchEffect, reactivity fundamentals

references/directives.md - Custom directive hooks, v-focus, v-click-outside, v-tooltip patterns

references/provide-inject.md - InjectionKey typing, app-level provide, readonly patterns

references/gotchas.md - Common gotchas, vue-tsc edge cases, hydration issues, race conditions (from vuejs-ai/skills)

Examples

Working examples in resources/examples/:

• component-example.vue - Full component with all patterns
• composable-example.ts - Reusable composition function