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/useCounter.md

@@ -0,0 +1,86 @@
+---
+category: Utilities
+---
+
+# useCounter
+
+Basic counter with utility functions.
+
+## Basic Usage
+
+```ts
+import { useCounter } from '@vueuse/core'
+
+const { count, inc, dec, set, reset } = useCounter()
+```
+
+## Usage with options
+
+```ts
+import { useCounter } from '@vueuse/core'
+
+const { count, inc, dec, set, reset } = useCounter(1, { min: 0, max: 16 })
+```
+
+## Type Declarations
+
+```ts
+export interface UseCounterOptions {
+  min?: number
+  max?: number
+}
+export interface UseCounterReturn {
+  /**
+   * The current value of the counter.
+   */
+  readonly count: Readonly<Ref<number>>
+  /**
+   * Increment the counter.
+   *
+   * @param {number} [delta=1] The number to increment.
+   */
+  inc: (delta?: number) => void
+  /**
+   * Decrement the counter.
+   *
+   * @param {number} [delta=1] The number to decrement.
+   */
+  dec: (delta?: number) => void
+  /**
+   * Get the current value of the counter.
+   */
+  get: () => number
+  /**
+   * Set the counter to a new value.
+   *
+   * @param val The new value of the counter.
+   */
+  set: (val: number) => void
+  /**
+   * Reset the counter to an initial value.
+   */
+  reset: (val?: number) => number
+}
+/**
+ * Basic counter with utility functions.
+ *
+ * @see https://vueuse.org/useCounter
+ * @param [initialValue]
+ * @param options
+ */
+export declare function useCounter(
+  initialValue?: MaybeRef<number>,
+  options?: UseCounterOptions,
+): {
+  count: Readonly<
+    | Ref<number, number>
+    | ShallowRef<number, number>
+    | WritableComputedRef<number, number>
+  >
+  inc: (delta?: number) => number
+  dec: (delta?: number) => number
+  get: () => number
+  set: (val: number) => number
+  reset: (val?: number) => number
+}
+```