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/vueuse-functions/references/useToggle.md

@@ -0,0 +1,56 @@
+---
+category: Utilities
+---
+
+# useToggle
+
+A boolean switcher with utility functions.
+
+## Usage
+
+```ts
+import { useToggle } from '@vueuse/core'
+
+const [value, toggle] = useToggle()
+```
+
+When you pass a ref, `useToggle` will return a simple toggle function instead:
+
+```ts
+import { useDark, useToggle } from '@vueuse/core'
+
+const isDark = useDark()
+const toggleDark = useToggle(isDark)
+```
+
+Note: be aware that the toggle function accepts the first argument as the override value. You might want to avoid directly passing the function to events in the template, as the event object will pass in.
+
+```html
+<!-- caution: $event will be pass in -->
+<button @click="toggleDark" />
+<!-- recommended to do this -->
+<button @click="toggleDark()" />
+```
+
+## Type Declarations
+
+```ts
+export type ToggleFn = (value?: boolean) => void
+export type UseToggleReturn = [ShallowRef<boolean>, ToggleFn] | ToggleFn
+export interface UseToggleOptions<Truthy, Falsy> {
+  truthyValue?: MaybeRefOrGetter<Truthy>
+  falsyValue?: MaybeRefOrGetter<Falsy>
+}
+export declare function useToggle<Truthy, Falsy, T = Truthy | Falsy>(
+  initialValue: Ref<T>,
+  options?: UseToggleOptions<Truthy, Falsy>,
+): (value?: T) => T
+export declare function useToggle<
+  Truthy = true,
+  Falsy = false,
+  T = Truthy | Falsy,
+>(
+  initialValue?: T,
+  options?: UseToggleOptions<Truthy, Falsy>,
+): [ShallowRef<T>, (value?: T) => T]
+```