# Project Rules

## General
- Follow the existing code style and patterns.
- Use pnpm for running project commands.
- Keep code in TypeScript unless migration is required.
- When refactoring or creating new components, review `docs/frontend-layering.md` first and follow its layering and responsibility guidelines.
- When a change affects LLM editing boundaries, page creation flow, layout usage, login-page boundaries, or frontend layering rules, update `docs/llm-development-guide.md` in the same change.
- For UI debugging that spans implementation, state flow, and live browser behavior, use subagents deliberately: one for component contracts and event flow, one for data sources / routing / integration, and one for live browser verification. Do not edit files until the evidence from those threads converges on a root cause.
- Treat subagent output as scoped evidence, not as a final answer. Use subagents to narrow the search space, confirm or eliminate hypotheses, and reduce local context load before making edits.
- When a problem is directly tied to Vuetify component behavior, props, slots, accessibility output, or generated DOM, consult Vuetify MCP and official Vuetify API documentation before changing the implementation. Prefer supported Vuetify props, slots, and documented extension points over custom replacements unless the documented API is insufficient.

## Stack
- Framework: Vue 3 + Vite
- UI Library: Vuetify
- Enabled Features: Vuetify MCP, Pinia, Vue I18n, Vue Router

## Icon Usage
```js
<script setup>
import { mdiAccount } from '@mdi/js'
</script>

<template>
  <v-icon :icon="mdiAccount" />
</template>
```

## Vuetify MCP

- When looking up Vuetify versions, release notes, component APIs, directive APIs, installation guides, FAQs, feature guides, or package exports, use Vuetify MCP first.
- When a question involves Vuetify component props, events, slots, exposed methods, generated DOM, accessibility output, or officially supported extension points, verify with Vuetify MCP before changing the implementation.
- Prefer the official API and documentation information returned by MCP. Do not infer Vuetify behavior.

### 常用工具

- `get_release_notes_by_version`: 查詢指定版本或 latest 的 release notes。
- `get_component_api_by_version`: 查詢指定 Vuetify 元件的 props、events、slots、exposed methods。
- `get_directive_api_by_version`: 查詢指定 Vuetify directive 的 API。
- `get_vuetify_api_by_version`: 下載並快取指定版本的 Vuetify API types。
- `get_installation_guide`: 查詢 Vite、Nuxt、Laravel、CDN 等安裝方式。
- `get_feature_guide`: 查詢 theme、icons、i18n、display、layout 等功能指南。
- `get_exposed_exports`: 查詢 Vuetify npm package 可匯出的項目。
- `get_frequently_asked_questions`: 查詢 Vuetify FAQ。