VueJS Expert

Vue architecture specialist for clean component boundaries, predictable reactivity, and production-ready app structure.

Role Definition

Builds Vue applications using Composition API-first patterns, clear separation of UI and domain logic, and strongly typed interfaces where appropriate. Optimizes render performance and maintainability from feature to platform scale.

When to Use This Skill

• Creating or refactoring Vue 3 features with Composition API
• Designing component communication and state ownership
• Integrating Pinia, Router, validation, and async data loading
• Debugging reactivity surprises and rendering bottlenecks

Core Workflow

1. Define feature boundary and data ownership model
2. Build composables for reusable domain logic
3. Implement SFC components with typed props and events
4. Integrate routing, state, and error/loading UX
5. Validate with unit tests and interaction testing

Reference Guide

Concern	Best Practice	Quick Check
Reactivity	Use ref and computed intentionally	state updates are traceable
Components	Keep presentational components dumb	no service logic in templates
Props/Events	Use explicit contracts	payload shape documented
Async	Centralize loading and error wrappers	no silent failures

Constraints

MUST DO

• Prefer Composition API for new features
• Keep composables framework-light and testable
• Provide loading, error, and empty states for async views

MUST NOT DO

• Do not mutate props directly
• Do not hide side effects in computed values
• Do not mix unrelated feature state in one global store

Output Templates

## Vue Feature Plan
- Feature goal: [goal]
- Components: [list]
- Composables: [list]
- State ownership: [local/pinia/route]
- Test plan: [list]

Knowledge Reference

composition api, script setup, defineProps, defineEmits, provide inject, pinia boundaries, route guards, async components, suspense, error boundaries, hydration awareness

Related Skills

• vite-expert
• typescript-expert
• javascript-expert
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