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/useTimeAgoIntl.md

@@ -0,0 +1,116 @@
+---
+category: Time
+---
+
+# useTimeAgoIntl
+
+Reactive time ago with i18n supported. Automatically update the time ago string when the time changes. Powered by `Intl.RelativeTimeFormat`.
+
+## Usage
+
+```js
+import { useTimeAgoIntl } from '@vueuse/core'
+
+const timeAgoIntl = useTimeAgoIntl(new Date(2021, 0, 1))
+```
+
+## Non-Reactivity Usage
+
+In case you don't need the reactivity, you can use the `formatTimeAgo` function to get the formatted string instead of a Ref.
+
+```js
+import { formatTimeAgoIntl } from '@vueuse/core'
+
+const timeAgoIntl = formatTimeAgoIntl(new Date(2021, 0, 1)) // string
+```
+
+## Type Declarations
+
+```ts
+type Locale = Intl.UnicodeBCP47LocaleIdentifier | Intl.Locale
+export interface FormatTimeAgoIntlOptions {
+  /**
+   * The locale to format with
+   *
+   * @default undefined
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat#locales
+   */
+  locale?: Locale
+  /**
+   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/RelativeTimeFormat/RelativeTimeFormat#options
+   */
+  relativeTimeFormatOptions?: Intl.RelativeTimeFormatOptions
+  /**
+   * Whether to insert spaces between parts.
+   *
+   * Ignored if `joinParts` is provided.
+   *
+   * @default true
+   */
+  insertSpace?: boolean
+  /**
+   * Custom function to join the parts returned by `Intl.RelativeTimeFormat.formatToParts`.
+   *
+   * If provided, it will be used instead of the default join logic.
+   */
+  joinParts?: (
+    parts: Intl.RelativeTimeFormatPart[],
+    locale?: Intl.UnicodeBCP47LocaleIdentifier | Intl.Locale,
+  ) => string
+  /**
+   * Custom units
+   */
+  units?: TimeAgoUnit[]
+}
+export interface UseTimeAgoIntlOptions<Controls extends boolean>
+  extends FormatTimeAgoIntlOptions {
+  /**
+   * Expose more controls and the raw `parts` result.
+   *
+   * @default false
+   */
+  controls?: Controls
+  /**
+   * Update interval in milliseconds, set 0 to disable auto update
+   *
+   * @default 30_000
+   */
+  updateInterval?: number
+}
+type UseTimeAgoReturn<Controls extends boolean = false> = Controls extends true
+  ? {
+      timeAgoIntl: ComputedRef<string>
+      parts: ComputedRef<Intl.RelativeTimeFormatPart[]>
+    } & Pausable
+  : ComputedRef<string>
+export interface TimeAgoUnit {
+  name: Intl.RelativeTimeFormatUnit
+  ms: number
+}
+/**
+ * A reactive wrapper for `Intl.RelativeTimeFormat`.
+ */
+export declare function useTimeAgoIntl(
+  time: MaybeRefOrGetter<Date | number | string>,
+  options?: UseTimeAgoIntlOptions<false>,
+): UseTimeAgoReturn<false>
+export declare function useTimeAgoIntl(
+  time: MaybeRefOrGetter<Date | number | string>,
+  options: UseTimeAgoIntlOptions<true>,
+): UseTimeAgoReturn<true>
+/**
+ * Non-reactive version of useTimeAgoIntl
+ */
+export declare function formatTimeAgoIntl(
+  from: Date,
+  options?: FormatTimeAgoIntlOptions,
+  now?: Date | number,
+): string
+/**
+ * Format parts into a string
+ */
+export declare function formatTimeAgoIntlParts(
+  parts: Intl.RelativeTimeFormatPart[],
+  options?: FormatTimeAgoIntlOptions,
+): string
+```