feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/vue-best-practices/reference/prefer-local-component-registration.md

@@ -0,0 +1,137 @@
+---
+title: Prefer Local Component Registration Over Global
+impact: MEDIUM
+impactDescription: Global registration prevents tree-shaking and creates implicit dependencies
+type: best-practice
+tags: [vue3, component-registration, tree-shaking, performance, maintainability]
+---
+
+# Prefer Local Component Registration Over Global
+
+**Impact: MEDIUM** - Global registration prevents build tools from removing unused components (tree-shaking), increasing bundle size. It also creates implicit dependencies similar to global variables, making it difficult to trace where components are used and locate their implementations in large applications.
+
+Use local registration for better maintainability, smaller bundles, and explicit dependency relationships.
+
+## Task Checklist
+
+- [ ] Use local registration (import in each component) by default
+- [ ] Reserve global registration only for truly ubiquitous components (icons, buttons, layouts)
+- [ ] When using `<script setup>`, simply import components - no explicit registration needed
+- [ ] Review existing global components and migrate to local registration where possible
+
+**Incorrect:**
+```javascript
+// main.js - registering many components globally
+import { createApp } from 'vue'
+import App from './App.vue'
+import Card from './components/Card.vue'
+import Modal from './components/Modal.vue'
+import Table from './components/Table.vue'
+import Pagination from './components/Pagination.vue'
+import UserAvatar from './components/UserAvatar.vue'
+import SearchBar from './components/SearchBar.vue'
+
+const app = createApp(App)
+
+// WRONG: All these components are now in the bundle even if unused
+app.component('Card', Card)
+app.component('Modal', Modal)
+app.component('Table', Table)
+app.component('Pagination', Pagination)
+app.component('UserAvatar', UserAvatar)
+app.component('SearchBar', SearchBar)
+
+app.mount('#app')
+```
+
+```vue
+<!-- SomePage.vue - uses only Card, but all components are bundled -->
+<template>
+  <Card>
+    <p>Content</p>
+  </Card>
+</template>
+
+<script setup>
+// No imports - relying on global registration
+// This makes dependencies invisible and hurts tree-shaking
+</script>
+```
+
+**Correct:**
+```javascript
+// main.js - only register truly universal components globally
+import { createApp } from 'vue'
+import App from './App.vue'
+import BaseIcon from './components/BaseIcon.vue'
+import BaseButton from './components/BaseButton.vue'
+
+const app = createApp(App)
+
+// Only truly ubiquitous base components
+app.component('BaseIcon', BaseIcon)
+app.component('BaseButton', BaseButton)
+
+app.mount('#app')
+```
+
+```vue
+<!-- SomePage.vue - explicit local imports -->
+<script setup>
+// CORRECT: Explicit imports enable tree-shaking
+// Only Card is included in the bundle for this component
+import Card from '@/components/Card.vue'
+import UserAvatar from '@/components/UserAvatar.vue'
+</script>
+
+<template>
+  <Card>
+    <UserAvatar :user="currentUser" />
+    <p>Content</p>
+  </Card>
+</template>
+```
+
+```vue
+<!-- Options API local registration -->
+<script>
+import Card from '@/components/Card.vue'
+import UserAvatar from '@/components/UserAvatar.vue'
+
+export default {
+  components: {
+    Card,
+    UserAvatar
+  }
+}
+</script>
+```
+
+## When Global Registration IS Appropriate
+
+```javascript
+// Truly universal base components used across the entire app
+import BaseIcon from './components/BaseIcon.vue'
+import BaseButton from './components/BaseButton.vue'
+import BaseInput from './components/BaseInput.vue'
+
+// Third-party component libraries with controlled scope
+import { Button, Input } from 'some-ui-library'
+
+app.component('BaseIcon', BaseIcon)
+app.component('BaseButton', BaseButton)
+app.component('BaseInput', BaseInput)
+```
+
+## Benefits of Local Registration
+
+| Aspect | Global | Local |
+|--------|--------|-------|
+| Tree-shaking | Not possible | Full support |
+| Dependency tracking | Implicit/hidden | Explicit imports |
+| Component location | Hard to find | Follow import path |
+| Bundle size | All registered components | Only used components |
+| Refactoring | Risk of breaking unknown usages | Clear dependency graph |
+
+## Reference
+- [Vue.js Component Registration](https://vuejs.org/guide/components/registration.html)