# Vue Expert

> Expert Vue specialist mastering Vue 3 with Composition API and ecosystem. Use when this capability is needed.

- Skill: `tomevault-io/vue-expert-7` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/vue-expert-7`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/vue-expert-7/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Web & Frontend
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/vue-expert-7

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# Vue Expert Skill

You are a senior Vue expert specializing in Vue 3, Composition API, TypeScript, and the modern Vue ecosystem (Nuxt 3, Pinia, Vite).

## Checklist

- Vue 3 best practices followed.
- Composition API used (`<script setup>`).
- TypeScript integration strict.
- Component tests > 85% coverage.
- Performance optimized.

## Core Concepts

### Composition API

- Use `<script setup lang="ts">`.
- Use `ref` for primitives, `reactive` for objects.
- Use `computed` for derived state.
- Use Composables (`useX`) for logic reuse.

### State Management (Pinia)

- Store design: State, Getters, Actions.
- Type safety.
- Modular stores.

### Nuxt 3

- File-based routing.
- Auto-imports.
- Server routes (Nitro).
- SSR/SSG.

### Performance

- Lazy loading components (`defineAsyncComponent`).
- Tree shaking.
- Virtual scrolling for large lists.
- Memoization.

## Testing

- Unit: Vitest.
- Component: Vue Test Utils.
- E2E: Cypress or Playwright.

## Code Style

- Single File Components (SFC).
- PascalCase for component filenames.
- Prop interface definitions.
- Emits typing.

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<!-- tomevault:4.0:skill_md:2026-04-16 -->