feat(docs): add document generator

2026-03-20 02:44:45 +00:00 · 2026-02-15 16:49:37 +07:00
parent a83e2bb797
commit abd6605db3
38 changed files with 9547 additions and 86 deletions
--- a/docs/.gitignore
+++ b/docs/.gitignore
@@ -0,0 +1,4 @@
+.nuxt/
+.output/
+node_modules/
+dist/
--- a/docs/app/app.vue
+++ b/docs/app/app.vue
@@ -0,0 +1,5 @@
+<template>
+  <NuxtLayout>
+    <NuxtPage />
+  </NuxtLayout>
+</template>
--- a/docs/app/assets/css/main.css
+++ b/docs/app/assets/css/main.css
@@ -0,0 +1,69 @@
+@import "tailwindcss";
+@source "../../../../web/vue/src/**/demo.vue";
+@source "../../../../core/stdlib/src/**/demo.vue";
+@source "../../../../core/platform/src/**/demo.vue";
+
+@theme {
+  --font-sans: 'Inter', system-ui, sans-serif;
+  --font-mono: 'JetBrains Mono', monospace;
+
+  --color-brand-50: #eef2ff;
+  --color-brand-100: #e0e7ff;
+  --color-brand-200: #c7d2fe;
+  --color-brand-300: #a5b4fc;
+  --color-brand-400: #818cf8;
+  --color-brand-500: #6366f1;
+  --color-brand-600: #4f46e5;
+  --color-brand-700: #4338ca;
+  --color-brand-800: #3730a3;
+  --color-brand-900: #312e81;
+  --color-brand-950: #1e1b4b;
+}
+
+:root {
+  --color-bg: #ffffff;
+  --color-bg-soft: #f9fafb;
+  --color-bg-mute: #f3f4f6;
+  --color-border: #e5e7eb;
+  --color-text: #111827;
+  --color-text-soft: #4b5563;
+  --color-text-mute: #9ca3af;
+  --color-header-bg: rgba(255, 255, 255, 0.8);
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --color-bg: #0f172a;
+    --color-bg-soft: #1e293b;
+    --color-bg-mute: #334155;
+    --color-border: #334155;
+    --color-text: #f1f5f9;
+    --color-text-soft: #94a3b8;
+    --color-text-mute: #64748b;
+    --color-header-bg: rgba(15, 23, 42, 0.8);
+  }
+}
+
+body {
+  background-color: var(--color-bg);
+  color: var(--color-text);
+  font-family: var(--font-sans);
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code, pre {
+  font-family: var(--font-mono);
+}
+
+/* Shiki dual-theme: activate dark colors via prefers-color-scheme */
+@media (prefers-color-scheme: dark) {
+  .shiki,
+  .shiki span {
+    color: var(--shiki-dark) !important;
+    background-color: var(--shiki-dark-bg) !important;
+    font-style: var(--shiki-dark-font-style) !important;
+    font-weight: var(--shiki-dark-font-weight) !important;
+    text-decoration: var(--shiki-dark-text-decoration) !important;
+  }
+}
--- a/docs/app/components/DocsBadge.vue
+++ b/docs/app/components/DocsBadge.vue
@@ -0,0 +1,37 @@
+<script setup lang="ts">
+defineProps<{
+  kind: string;
+  size?: 'sm' | 'md';
+}>();
+
+const kindColors: Record<string, string> = {
+  function: 'bg-indigo-100 text-indigo-700 dark:bg-indigo-900/30 dark:text-indigo-300',
+  class: 'bg-violet-100 text-violet-700 dark:bg-violet-900/30 dark:text-violet-300',
+  interface: 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-300',
+  type: 'bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-300',
+  enum: 'bg-rose-100 text-rose-700 dark:bg-rose-900/30 dark:text-rose-300',
+  variable: 'bg-slate-100 text-slate-700 dark:bg-slate-800/50 dark:text-slate-300',
+};
+
+const kindLabels: Record<string, string> = {
+  function: 'fn',
+  class: 'C',
+  interface: 'I',
+  type: 'T',
+  enum: 'E',
+  variable: 'V',
+};
+</script>
+
+<template>
+  <span
+    :class="[
+      'inline-flex items-center justify-center rounded font-mono font-medium shrink-0',
+      kindColors[kind] ?? kindColors.variable,
+      size === 'sm' ? 'w-5 h-5 text-[10px]' : 'w-6 h-6 text-xs',
+    ]"
+    :title="kind"
+  >
+    {{ kindLabels[kind] ?? '?' }}
+  </span>
+</template>
--- a/docs/app/components/DocsCode.vue
+++ b/docs/app/components/DocsCode.vue
@@ -0,0 +1,28 @@
+<script setup lang="ts">
+const props = defineProps<{
+  code: string;
+  lang?: string;
+}>();
+
+const { highlight } = useShiki();
+const html = ref('');
+
+onMounted(async () => {
+  html.value = await highlight(props.code, props.lang ?? 'typescript');
+});
+
+watch(() => props.code, async (newCode) => {
+  html.value = await highlight(newCode, props.lang ?? 'typescript');
+});
+</script>
+
+<template>
+  <div class="code-block relative group rounded-lg border border-(--color-border) overflow-hidden max-w-full">
+    <div
+      v-if="html"
+      class="overflow-x-auto text-sm leading-relaxed [&_pre]:p-4 [&_pre]:m-0 [&_pre]:min-w-0"
+      v-html="html"
+    />
+    <pre v-else class="p-4 text-sm bg-(--color-bg-soft) overflow-x-auto"><code>{{ code }}</code></pre>
+  </div>
+</template>
--- a/docs/app/components/DocsDemo.vue
+++ b/docs/app/components/DocsDemo.vue
@@ -0,0 +1,71 @@
+<script setup lang="ts">
+import type { Component } from 'vue';
+
+const props = defineProps<{
+  component: Component;
+  source: string;
+}>();
+
+const showSource = ref(false);
+
+const { highlighted, highlightReactive } = useShiki();
+
+watch(showSource, async (show) => {
+  if (show && !highlighted.value) {
+    await highlightReactive(props.source, 'vue');
+  }
+}, { immediate: false });
+</script>
+
+<template>
+  <div class="border border-(--color-border) rounded-lg overflow-hidden">
+    <!-- Live demo -->
+    <div class="p-6 bg-(--color-bg-soft)">
+      <component :is="component" />
+    </div>
+
+    <!-- Source toggle bar -->
+    <div class="flex items-center border-t border-(--color-border) bg-(--color-bg)">
+      <button
+        class="flex items-center gap-1.5 px-4 py-2 text-xs font-medium text-(--color-text-mute) hover:text-(--color-text) transition-colors cursor-pointer"
+        @click="showSource = !showSource"
+      >
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          width="14"
+          height="14"
+          viewBox="0 0 24 24"
+          fill="none"
+          stroke="currentColor"
+          stroke-width="2"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+        >
+          <polyline points="16 18 22 12 16 6" />
+          <polyline points="8 6 2 12 8 18" />
+        </svg>
+        {{ showSource ? 'Hide source' : 'View source' }}
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          width="12"
+          height="12"
+          viewBox="0 0 24 24"
+          fill="none"
+          stroke="currentColor"
+          stroke-width="2"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          class="transition-transform"
+          :class="showSource ? 'rotate-180' : ''"
+        >
+          <polyline points="6 9 12 15 18 9" />
+        </svg>
+      </button>
+    </div>
+
+    <!-- Source code -->
+    <div v-if="showSource" class="border-t border-(--color-border)">
+      <div class="overflow-x-auto text-sm" v-html="highlighted" />
+    </div>
+  </div>
+</template>
--- a/docs/app/components/DocsMethodsList.vue
+++ b/docs/app/components/DocsMethodsList.vue
@@ -0,0 +1,46 @@
+<script setup lang="ts">
+import type { MethodMeta } from '../../modules/extractor/types';
+
+defineProps<{
+  methods: MethodMeta[];
+}>();
+</script>
+
+<template>
+  <div v-if="methods.length > 0" class="space-y-4">
+    <div
+      v-for="method in methods"
+      :key="method.name"
+      class="border border-(--color-border) rounded-lg p-4"
+    >
+      <div class="flex items-center gap-2 mb-2">
+        <code class="text-sm font-mono font-semibold text-(--color-text)">{{ method.name }}</code>
+        <span
+          v-if="method.visibility !== 'public'"
+          class="text-[10px] uppercase px-1.5 py-0.5 rounded bg-(--color-bg-mute) text-(--color-text-mute)"
+        >
+          {{ method.visibility }}
+        </span>
+      </div>
+
+      <p v-if="method.description" class="text-sm text-(--color-text-soft) mb-3">
+        {{ method.description }}
+      </p>
+
+      <DocsCode
+        v-for="(sig, i) in method.signatures"
+        :key="i"
+        :code="sig"
+        class="mb-3"
+      />
+
+      <DocsParamsTable v-if="method.params.length > 0" :params="method.params" />
+
+      <div v-if="method.returns" class="mt-2 text-sm">
+        <span class="text-(--color-text-mute)">Returns:</span>
+        <code class="ml-1 text-xs font-mono bg-(--color-bg-mute) px-1.5 py-0.5 rounded">{{ method.returns.type }}</code>
+        <span v-if="method.returns.description" class="ml-2 text-(--color-text-soft)">{{ method.returns.description }}</span>
+      </div>
+    </div>
+  </div>
+</template>
--- a/docs/app/components/DocsParamsTable.vue
+++ b/docs/app/components/DocsParamsTable.vue
@@ -0,0 +1,44 @@
+<script setup lang="ts">
+import type { ParamMeta } from '../../modules/extractor/types';
+
+defineProps<{
+  params: ParamMeta[];
+}>();
+</script>
+
+<template>
+  <div v-if="params.length > 0" class="overflow-x-auto max-w-full">
+    <table class="w-full text-sm border-collapse table-fixed">
+      <thead>
+        <tr class="border-b border-(--color-border)">
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Parameter</th>
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Type</th>
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Default</th>
+          <th class="text-left py-2 font-medium text-(--color-text-soft)">Description</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr
+          v-for="param in params"
+          :key="param.name"
+          class="border-b border-(--color-border) last:border-b-0"
+        >
+          <td class="py-2 pr-4">
+            <code class="text-brand-600 font-mono text-xs">{{ param.name }}</code>
+            <span v-if="param.optional" class="text-(--color-text-mute) text-xs ml-1">?</span>
+          </td>
+          <td class="py-2 pr-4 max-w-48 overflow-hidden">
+            <code class="text-xs font-mono text-(--color-text-soft) bg-(--color-bg-mute) px-1.5 py-0.5 rounded break-all">{{ param.type }}</code>
+          </td>
+          <td class="py-2 pr-4">
+            <code v-if="param.defaultValue" class="text-xs font-mono text-(--color-text-mute)">{{ param.defaultValue }}</code>
+            <span v-else class="text-(--color-text-mute)">—</span>
+          </td>
+          <td class="py-2 text-(--color-text-soft)">
+            {{ param.description || '—' }}
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+</template>
--- a/docs/app/components/DocsPropsTable.vue
+++ b/docs/app/components/DocsPropsTable.vue
@@ -0,0 +1,45 @@
+<script setup lang="ts">
+import type { PropertyMeta } from '../../modules/extractor/types';
+
+defineProps<{
+  properties: PropertyMeta[];
+}>();
+</script>
+
+<template>
+  <div v-if="properties.length > 0" class="overflow-x-auto max-w-full">
+    <table class="w-full text-sm border-collapse table-fixed">
+      <thead>
+        <tr class="border-b border-(--color-border)">
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Property</th>
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Type</th>
+          <th class="text-left py-2 pr-4 font-medium text-(--color-text-soft)">Default</th>
+          <th class="text-left py-2 font-medium text-(--color-text-soft)">Description</th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr
+          v-for="prop in properties"
+          :key="prop.name"
+          class="border-b border-(--color-border) last:border-b-0"
+        >
+          <td class="py-2 pr-4">
+            <code class="text-brand-600 font-mono text-xs">{{ prop.name }}</code>
+            <span v-if="prop.readonly" class="text-(--color-text-mute) text-[10px] ml-1 uppercase">readonly</span>
+            <span v-if="prop.optional" class="text-(--color-text-mute) text-xs ml-1">?</span>
+          </td>
+          <td class="py-2 pr-4 max-w-48 overflow-hidden">
+            <code class="text-xs font-mono text-(--color-text-soft) bg-(--color-bg-mute) px-1.5 py-0.5 rounded break-all">{{ prop.type }}</code>
+          </td>
+          <td class="py-2 pr-4">
+            <code v-if="prop.defaultValue" class="text-xs font-mono text-(--color-text-mute)">{{ prop.defaultValue }}</code>
+            <span v-else class="text-(--color-text-mute)">—</span>
+          </td>
+          <td class="py-2 text-(--color-text-soft)">
+            {{ prop.description || '—' }}
+          </td>
+        </tr>
+      </tbody>
+    </table>
+  </div>
+</template>
--- a/docs/app/components/DocsSearch.vue
+++ b/docs/app/components/DocsSearch.vue
@@ -0,0 +1,120 @@
+<script setup lang="ts">
+const { searchItems } = useDocs();
+
+const isOpen = ref(false);
+const query = ref('');
+
+const results = computed(() => searchItems(query.value).slice(0, 20));
+
+function open() {
+  isOpen.value = true;
+  nextTick(() => {
+    const input = document.querySelector<HTMLInputElement>('[data-search-input]');
+    input?.focus();
+  });
+}
+
+function close() {
+  isOpen.value = false;
+  query.value = '';
+}
+
+// Keyboard shortcut: Cmd+K / Ctrl+K
+if (import.meta.client) {
+  useEventListener(window, 'keydown', (e: KeyboardEvent) => {
+    if ((e.metaKey || e.ctrlKey) && e.key === 'k') {
+      e.preventDefault();
+      if (isOpen.value) close();
+      else open();
+    }
+    if (e.key === 'Escape' && isOpen.value) {
+      close();
+    }
+  });
+}
+
+function useEventListener(target: Window, event: string, handler: (e: any) => void) {
+  onMounted(() => target.addEventListener(event, handler));
+  onUnmounted(() => target.removeEventListener(event, handler));
+}
+</script>
+
+<template>
+  <div>
+    <button
+      class="flex items-center gap-2 px-3 py-1.5 text-sm text-(--color-text-mute) bg-(--color-bg-mute) border border-(--color-border) rounded-lg hover:border-(--color-text-mute) transition-colors"
+      @click="open"
+    >
+      <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+        <circle cx="11" cy="11" r="8" />
+        <path d="m21 21-4.3-4.3" />
+      </svg>
+      <span class="hidden sm:inline">Search...</span>
+      <kbd class="hidden sm:inline-flex items-center gap-0.5 px-1.5 py-0.5 text-[10px] font-mono bg-(--color-bg) border border-(--color-border) rounded">
+        <span>⌘</span>K
+      </kbd>
+    </button>
+
+    <!-- Search modal -->
+    <Teleport to="body">
+      <Transition
+        enter-active-class="duration-200 ease-out"
+        enter-from-class="opacity-0"
+        enter-to-class="opacity-100"
+        leave-active-class="duration-150 ease-in"
+        leave-from-class="opacity-100"
+        leave-to-class="opacity-0"
+      >
+        <div v-if="isOpen" class="fixed inset-0 z-50">
+          <div class="fixed inset-0 bg-black/50" @click="close" />
+
+          <div class="fixed inset-x-0 top-[10vh] mx-auto max-w-lg px-4">
+            <div class="bg-(--color-bg) rounded-xl border border-(--color-border) shadow-2xl overflow-hidden">
+              <div class="flex items-center px-4 border-b border-(--color-border)">
+                <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="text-(--color-text-mute) shrink-0">
+                  <circle cx="11" cy="11" r="8" />
+                  <path d="m21 21-4.3-4.3" />
+                </svg>
+                <input
+                  v-model="query"
+                  data-search-input
+                  type="text"
+                  placeholder="Search documentation..."
+                  class="w-full py-3 px-3 bg-transparent text-(--color-text) placeholder:text-(--color-text-mute) focus:outline-none"
+                >
+              </div>
+
+              <div class="max-h-80 overflow-y-auto">
+                <div v-if="query && results.length === 0" class="py-8 text-center text-sm text-(--color-text-mute)">
+                  No results found
+                </div>
+                <ul v-else-if="results.length > 0" class="py-2">
+                  <li v-for="{ pkg, item } in results" :key="`${pkg.slug}-${item.slug}`">
+                    <NuxtLink
+                      :to="`/${pkg.slug}/${item.slug}`"
+                      class="flex items-center gap-3 px-4 py-2.5 hover:bg-(--color-bg-mute) transition-colors"
+                      @click="close"
+                    >
+                      <DocsBadge :kind="item.kind" size="sm" />
+                      <div class="min-w-0">
+                        <div class="text-sm font-medium text-(--color-text) truncate">
+                          {{ item.name }}
+                        </div>
+                        <div class="text-xs text-(--color-text-mute) truncate">
+                          {{ pkg.name }} · {{ item.description }}
+                        </div>
+                      </div>
+                    </NuxtLink>
+                  </li>
+                </ul>
+                <div v-else class="py-8 text-center text-sm text-(--color-text-mute)">
+                  Type to search...
+                </div>
+              </div>
+            </div>
+          </div>
+        </div>
+      </Transition>
+    </Teleport>
+  </div>
+</template>
--- a/docs/app/components/DocsTag.vue
+++ b/docs/app/components/DocsTag.vue
@@ -0,0 +1,24 @@
+<script setup lang="ts">
+defineProps<{
+  label: string;
+  variant?: 'since' | 'test' | 'demo' | 'wip';
+}>();
+
+const variantClasses: Record<string, string> = {
+  since: 'bg-(--color-bg-mute) text-(--color-text-mute)',
+  test: 'bg-emerald-100 text-emerald-700 dark:bg-emerald-900/30 dark:text-emerald-400',
+  demo: 'bg-indigo-100 text-indigo-700 dark:bg-indigo-900/30 dark:text-indigo-400',
+  wip: 'bg-amber-100 text-amber-700 dark:bg-amber-900/30 dark:text-amber-400',
+};
+</script>
+
+<template>
+  <span
+    :class="[
+      'inline-flex items-center px-2 py-0.5 text-xs font-medium rounded-full',
+      variantClasses[variant ?? 'since'],
+    ]"
+  >
+    {{ label }}
+  </span>
+</template>
--- a/docs/app/composables/useDocs.ts
+++ b/docs/app/composables/useDocs.ts
@@ -0,0 +1,64 @@
+import metadata from '#docs/metadata';
+import type { DocsMetadata, PackageMeta, CategoryMeta, ItemMeta } from '../../modules/extractor/types';
+
+export function useDocs() {
+  const data = metadata as unknown as DocsMetadata;
+
+  function getPackages(): PackageMeta[] {
+    return data.packages;
+  }
+
+  function getPackage(slug: string): PackageMeta | undefined {
+    return data.packages.find(p => p.slug === slug);
+  }
+
+  function getItem(packageSlug: string, itemSlug: string): { pkg: PackageMeta; category: CategoryMeta; item: ItemMeta } | undefined {
+    const pkg = getPackage(packageSlug);
+    if (!pkg) return undefined;
+
+    for (const category of pkg.categories) {
+      const item = category.items.find(i => i.slug === itemSlug);
+      if (item) return { pkg, category, item };
+    }
+
+    return undefined;
+  }
+
+  function searchItems(query: string): Array<{ pkg: PackageMeta; item: ItemMeta }> {
+    if (!query.trim()) return [];
+    const q = query.toLowerCase();
+    const results: Array<{ pkg: PackageMeta; item: ItemMeta }> = [];
+
+    for (const pkg of data.packages) {
+      for (const category of pkg.categories) {
+        for (const item of category.items) {
+          if (
+            item.name.toLowerCase().includes(q)
+            || item.description.toLowerCase().includes(q)
+          ) {
+            results.push({ pkg, item });
+          }
+        }
+      }
+    }
+
+    return results;
+  }
+
+  function getTotalItems(): number {
+    return data.packages.reduce(
+      (sum, pkg) => sum + pkg.categories.reduce(
+        (catSum, cat) => catSum + cat.items.length, 0,
+      ), 0,
+    );
+  }
+
+  return {
+    data,
+    getPackages,
+    getPackage,
+    getItem,
+    searchItems,
+    getTotalItems,
+  };
+}
--- a/docs/app/composables/useShiki.ts
+++ b/docs/app/composables/useShiki.ts
@@ -0,0 +1,41 @@
+import { createHighlighter, type Highlighter } from 'shiki';
+
+let highlighterPromise: Promise<Highlighter> | null = null;
+
+function getHighlighter(): Promise<Highlighter> {
+  if (!highlighterPromise) {
+    highlighterPromise = createHighlighter({
+      themes: ['github-light', 'github-dark'],
+      langs: ['typescript', 'vue', 'json', 'bash'],
+    });
+  }
+  return highlighterPromise;
+}
+
+export function useShiki() {
+  const highlighted = ref<string>('');
+  const isReady = ref(false);
+
+  async function highlight(code: string, lang: string = 'typescript'): Promise<string> {
+    const highlighter = await getHighlighter();
+    return highlighter.codeToHtml(code, {
+      lang,
+      themes: {
+        light: 'github-light',
+        dark: 'github-dark',
+      },
+    });
+  }
+
+  async function highlightReactive(code: string, lang: string = 'typescript'): Promise<void> {
+    highlighted.value = await highlight(code, lang);
+    isReady.value = true;
+  }
+
+  return {
+    highlight,
+    highlighted,
+    highlightReactive,
+    isReady,
+  };
+}
--- a/docs/app/layouts/default.vue
+++ b/docs/app/layouts/default.vue
@@ -0,0 +1,105 @@
+<script setup lang="ts">
+const { getPackages } = useDocs();
+const packages = getPackages();
+
+const route = useRoute();
+const isSidebarOpen = ref(false);
+
+const currentPackageSlug = computed(() => {
+  const param = route.params.package;
+  return typeof param === 'string' ? param : undefined;
+});
+
+watch(() => route.path, () => {
+  isSidebarOpen.value = false;
+});
+</script>
+
+<template>
+  <div class="min-h-screen flex flex-col">
+    <!-- Header -->
+    <header class="sticky top-0 z-50 border-b border-(--color-border) backdrop-blur-sm" style="background-color: var(--color-header-bg)">
+      <div class="mx-auto max-w-7xl flex items-center justify-between px-4 h-14 sm:px-6">
+        <div class="flex items-center gap-4">
+          <button
+            class="lg:hidden p-1.5 -ml-1.5 text-(--color-text-soft) hover:text-(--color-text)"
+            @click="isSidebarOpen = !isSidebarOpen"
+          >
+            <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+              <line x1="3" y1="6" x2="21" y2="6" />
+              <line x1="3" y1="12" x2="21" y2="12" />
+              <line x1="3" y1="18" x2="21" y2="18" />
+            </svg>
+          </button>
+          <NuxtLink to="/" class="flex items-center gap-2 font-semibold text-(--color-text)">
+            <span class="text-brand-600">@robonen</span><span class="text-(--color-text-mute)">/</span><span>tools</span>
+          </NuxtLink>
+        </div>
+        <div class="flex items-center gap-3">
+          <DocsSearch />
+          <a
+            href="https://github.com/robonen/tools"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="p-1.5 text-(--color-text-soft) hover:text-(--color-text) transition-colors"
+          >
+            <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="currentColor">
+              <path d="M12 0c-6.626 0-12 5.373-12 12 0 5.302 3.438 9.8 8.207 11.387.599.111.793-.261.793-.577v-2.234c-3.338.726-4.033-1.416-4.033-1.416-.546-1.387-1.333-1.756-1.333-1.756-1.089-.745.083-.729.083-.729 1.205.084 1.839 1.237 1.839 1.237 1.07 1.834 2.807 1.304 3.492.997.107-.775.418-1.305.762-1.604-2.665-.305-5.467-1.334-5.467-5.931 0-1.311.469-2.381 1.236-3.221-.124-.303-.535-1.524.117-3.176 0 0 1.008-.322 3.301 1.23.957-.266 1.983-.399 3.003-.404 1.02.005 2.047.138 3.006.404 2.291-1.552 3.297-1.23 3.297-1.23.653 1.653.242 2.874.118 3.176.77.84 1.235 1.911 1.235 3.221 0 4.609-2.807 5.624-5.479 5.921.43.372.823 1.102.823 2.222v3.293c0 .319.192.694.801.576 4.765-1.589 8.199-6.086 8.199-11.386 0-6.627-5.373-12-12-12z" />
+            </svg>
+          </a>
+        </div>
+      </div>
+    </header>
+
+    <div class="mx-auto max-w-7xl w-full flex flex-1 px-4 sm:px-6">
+      <!-- Sidebar -->
+      <aside
+        :class="[
+          'fixed inset-y-0 left-0 z-40 w-64 bg-(--color-bg) border-r border-(--color-border) pt-14 transform transition-transform lg:sticky lg:top-14 lg:z-auto lg:h-[calc(100vh-3.5rem)] lg:w-56 lg:shrink-0 lg:translate-x-0 lg:pt-0 lg:border-r-0 lg:bg-transparent lg:transform-none',
+          isSidebarOpen ? 'translate-x-0' : '-translate-x-full',
+        ]"
+      >
+        <nav class="h-full overflow-y-auto py-6 px-4 lg:pr-6 lg:pl-0 overscroll-contain">
+          <div v-for="pkg in packages" :key="pkg.slug" class="mb-6">
+            <NuxtLink
+              :to="`/${pkg.slug}`"
+              class="block text-xs font-semibold uppercase tracking-wider mb-2"
+              :class="currentPackageSlug === pkg.slug ? 'text-brand-600' : 'text-(--color-text-mute) hover:text-(--color-text-soft)'"
+            >
+              {{ pkg.name }}
+            </NuxtLink>
+            <div v-for="category in pkg.categories" :key="category.slug" class="mb-3">
+              <div class="text-xs font-medium text-(--color-text-mute) mb-1 pl-2">
+                {{ category.name }}
+              </div>
+              <ul class="space-y-0.5">
+                <li v-for="item in category.items" :key="item.slug">
+                  <NuxtLink
+                    :to="`/${pkg.slug}/${item.slug}`"
+                    class="block py-1 px-2 text-sm rounded-md transition-colors"
+                    active-class="bg-brand-50 text-brand-700 dark:bg-brand-950 dark:text-brand-300 font-medium"
+                    :class="route.path !== `/${pkg.slug}/${item.slug}` ? 'text-(--color-text-soft) hover:text-(--color-text) hover:bg-(--color-bg-mute)' : ''"
+                  >
+                    {{ item.name }}
+                  </NuxtLink>
+                </li>
+              </ul>
+            </div>
+          </div>
+        </nav>
+      </aside>
+
+      <!-- Sidebar overlay -->
+      <div
+        v-if="isSidebarOpen"
+        class="fixed inset-0 z-30 bg-black/20 lg:hidden"
+        @click="isSidebarOpen = false"
+      />
+
+      <!-- Main content -->
+      <main class="flex-1 min-w-0 overflow-hidden py-8 lg:pl-8">
+        <slot />
+      </main>
+    </div>
+  </div>
+</template>
--- a/docs/app/pages/[package]/[utility].vue
+++ b/docs/app/pages/[package]/[utility].vue
@@ -0,0 +1,204 @@
+<script setup lang="ts">
+import { demos } from '#docs/demos';
+
+const route = useRoute();
+const { getItem } = useDocs();
+
+const packageSlug = computed(() => route.params.package as string);
+const utilitySlug = computed(() => route.params.utility as string);
+
+const result = computed(() => getItem(packageSlug.value, utilitySlug.value));
+
+if (!result.value) {
+  throw createError({
+    statusCode: 404,
+    message: `Item "${utilitySlug.value}" not found in package "${packageSlug.value}"`,
+  });
+}
+
+const { pkg, category, item } = result.value;
+
+useHead({
+  title: `${item.name} — ${pkg.name} — @robonen/tools`,
+  meta: [
+    { name: 'description', content: item.description },
+  ],
+});
+
+const sourceUrl = computed(() => `https://github.com/robonen/tools/blob/main/${item.sourcePath}`);
+
+const demoComponent = computed(() => {
+  const key = `${pkg.slug}/${item.slug}`;
+  return demos[key] ?? null;
+});
+</script>
+
+<template>
+  <div v-if="item" class="max-w-3xl min-w-0">
+    <!-- Breadcrumb -->
+    <nav class="flex items-center gap-1.5 text-sm text-(--color-text-mute) mb-6">
+      <NuxtLink :to="`/${pkg.slug}`" class="hover:text-(--color-text-soft) transition-colors">
+        {{ pkg.name }}
+      </NuxtLink>
+      <span>/</span>
+      <span>{{ category.name }}</span>
+      <span>/</span>
+      <span class="text-(--color-text)">{{ item.name }}</span>
+    </nav>
+
+    <!-- Header -->
+    <div class="mb-8">
+      <div class="flex items-center gap-3 mb-2 flex-wrap">
+        <DocsBadge :kind="item.kind" size="md" />
+        <h1 class="text-2xl font-bold font-mono tracking-tight text-(--color-text)">
+          {{ item.name }}
+        </h1>
+        <DocsTag v-if="item.since" :label="`v${item.since}`" variant="since" />
+        <DocsTag v-if="item.hasTests" label="tested" variant="test" />
+        <DocsTag v-if="item.hasDemo" label="demo" variant="demo" />
+      </div>
+      <p class="text-(--color-text-soft) leading-relaxed">
+        {{ item.description }}
+      </p>
+
+      <!-- Links (source, tests) -->
+      <div class="flex items-center gap-4 mt-3 text-sm">
+        <a
+          :href="sourceUrl"
+          target="_blank"
+          rel="noopener noreferrer"
+          class="flex items-center gap-1.5 text-(--color-text-mute) hover:text-(--color-text) transition-colors"
+        >
+          <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+            <path d="M15 22v-4a4.8 4.8 0 0 0-1-3.5c3 0 6-2 6-5.5.08-1.25-.27-2.48-1-3.5.28-1.15.28-2.35 0-3.5 0 0-1 0-3 1.5-2.64-.5-5.36-.5-8 0C6 2 5 2 5 2c-.3 1.15-.3 2.35 0 3.5A5.403 5.403 0 0 0 4 9c0 3.5 3 5.5 6 5.5-.39.49-.68 1.05-.85 1.65-.17.6-.22 1.23-.15 1.85v4" />
+            <path d="M9 18c-4.51 2-5-2-7-2" />
+          </svg>
+          Source
+        </a>
+        <a
+          v-if="item.hasTests"
+          :href="`${sourceUrl.replace('index.ts', 'index.test.ts')}`"
+          target="_blank"
+          rel="noopener noreferrer"
+          class="flex items-center gap-1.5 text-(--color-text-mute) hover:text-(--color-text) transition-colors"
+        >
+          <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+            <path d="M14.5 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7.5L14.5 2z" />
+            <polyline points="14 2 14 8 20 8" />
+            <path d="m9 15 2 2 4-4" />
+          </svg>
+          Tests
+        </a>
+      </div>
+    </div>
+
+    <!-- Examples (moved to top for quick reference) -->
+    <section v-if="item.examples.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        {{ item.examples.length > 1 ? 'Examples' : 'Example' }}
+      </h2>
+      <div class="space-y-3">
+        <DocsCode v-for="(example, i) in item.examples" :key="i" :code="example" />
+      </div>
+    </section>
+
+    <!-- Demo -->
+    <section v-if="item.hasDemo && demoComponent" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Demo
+      </h2>
+      <DocsDemo :component="demoComponent" :source="item.demoSource" />
+    </section>
+
+    <!-- Signatures -->
+    <section v-if="item.signatures.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        {{ item.signatures.length > 1 ? 'Signatures' : 'Signature' }}
+      </h2>
+      <div class="space-y-2">
+        <DocsCode v-for="(sig, i) in item.signatures" :key="i" :code="sig" />
+      </div>
+    </section>
+
+    <!-- Type Parameters -->
+    <section v-if="item.typeParams.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Type Parameters
+      </h2>
+      <div class="space-y-2">
+        <div
+          v-for="tp in item.typeParams"
+          :key="tp.name"
+          class="flex items-baseline gap-2 text-sm"
+        >
+          <code class="font-mono font-medium text-brand-600">{{ tp.name }}</code>
+          <span v-if="tp.constraint" class="text-(--color-text-mute)">
+            extends <code class="font-mono text-xs">{{ tp.constraint }}</code>
+          </span>
+          <span v-if="tp.default" class="text-(--color-text-mute)">
+            = <code class="font-mono text-xs">{{ tp.default }}</code>
+          </span>
+        </div>
+      </div>
+    </section>
+
+    <!-- Parameters -->
+    <section v-if="item.params.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Parameters
+      </h2>
+      <DocsParamsTable :params="item.params" />
+    </section>
+
+    <!-- Return value -->
+    <section v-if="item.returns" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Returns
+      </h2>
+      <div class="flex items-baseline gap-2 text-sm">
+        <code class="font-mono bg-(--color-bg-mute) px-2 py-1 rounded text-xs break-all">{{ item.returns.type }}</code>
+        <span v-if="item.returns.description" class="text-(--color-text-soft)">{{ item.returns.description }}</span>
+      </div>
+    </section>
+
+    <!-- Properties (interfaces, classes) -->
+    <section v-if="item.properties.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Properties
+      </h2>
+      <DocsPropsTable :properties="item.properties" />
+    </section>
+
+    <!-- Methods (classes) -->
+    <section v-if="item.methods.length > 0" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Methods
+      </h2>
+      <DocsMethodsList :methods="item.methods" />
+    </section>
+
+    <!-- Related Types -->
+    <section v-if="item.relatedTypes?.length" class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-3">
+        Related Types
+      </h2>
+      <div class="space-y-4">
+        <div
+          v-for="rt in item.relatedTypes"
+          :key="rt.name"
+          class="border border-(--color-border) rounded-lg p-4 bg-(--color-bg-soft)"
+        >
+          <div class="flex items-center gap-2 mb-2">
+            <DocsBadge :kind="rt.kind" size="sm" />
+            <h3 class="font-mono font-semibold text-sm">{{ rt.name }}</h3>
+          </div>
+          <p v-if="rt.description" class="text-sm text-(--color-text-soft) mb-3">
+            {{ rt.description }}
+          </p>
+          <DocsCode v-if="rt.signatures.length > 0" :code="rt.signatures[0]!" />
+          <DocsPropsTable v-if="rt.properties.length > 0" :properties="rt.properties" class="mt-3" />
+        </div>
+      </div>
+    </section>
+  </div>
+</template>
--- a/docs/app/pages/[package]/index.vue
+++ b/docs/app/pages/[package]/index.vue
@@ -0,0 +1,74 @@
+<script setup lang="ts">
+const route = useRoute();
+const { getPackage } = useDocs();
+
+const slug = computed(() => route.params.package as string);
+const pkg = computed(() => getPackage(slug.value));
+
+if (!pkg.value) {
+  throw createError({ statusCode: 404, message: `Package "${slug.value}" not found` });
+}
+
+useHead({
+  title: `${pkg.value.name} — @robonen/tools`,
+});
+</script>
+
+<template>
+  <div v-if="pkg" class="max-w-3xl min-w-0">
+    <!-- Header -->
+    <div class="mb-8">
+      <div class="flex items-center gap-3 mb-2">
+        <h1 class="text-2xl font-bold tracking-tight text-(--color-text)">
+          {{ pkg.name }}
+        </h1>
+        <DocsTag :label="`v${pkg.version}`" variant="since" />
+      </div>
+      <p class="text-(--color-text-soft)">
+        {{ pkg.description }}
+      </p>
+    </div>
+
+    <!-- Install -->
+    <div class="mb-8">
+      <h2 class="text-sm font-semibold uppercase tracking-wider text-(--color-text-mute) mb-2">
+        Installation
+      </h2>
+      <DocsCode :code="`pnpm add ${pkg.name}`" lang="bash" />
+    </div>
+
+    <!-- Categories -->
+    <div v-for="category in pkg.categories" :key="category.slug" class="mb-8">
+      <h2 class="text-lg font-semibold text-(--color-text) mb-4 pb-2 border-b border-(--color-border)">
+        {{ category.name }}
+      </h2>
+
+      <div class="grid gap-2">
+        <NuxtLink
+          v-for="item in category.items"
+          :key="item.slug"
+          :to="`/${pkg.slug}/${item.slug}`"
+          class="group flex items-center gap-3 p-3 rounded-lg border border-(--color-border) hover:border-brand-300 hover:bg-(--color-bg-soft) transition-all"
+        >
+          <DocsBadge :kind="item.kind" />
+          <div class="min-w-0 flex-1">
+            <div class="flex items-center gap-2">
+              <span class="font-mono text-sm font-medium text-(--color-text) group-hover:text-brand-600 transition-colors">
+                {{ item.name }}
+              </span>
+              <DocsTag v-if="item.since" :label="`v${item.since}`" variant="since" />
+              <DocsTag v-if="item.hasTests" label="tested" variant="test" />
+              <DocsTag v-if="item.hasDemo" label="demo" variant="demo" />
+            </div>
+            <p v-if="item.description" class="text-sm text-(--color-text-mute) mt-0.5 truncate">
+              {{ item.description }}
+            </p>
+          </div>
+          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="text-(--color-text-mute) group-hover:text-brand-600 transition-colors shrink-0">
+            <polyline points="9 18 15 12 9 6" />
+          </svg>
+        </NuxtLink>
+      </div>
+    </div>
+  </div>
+</template>
--- a/docs/app/pages/index.vue
+++ b/docs/app/pages/index.vue
@@ -0,0 +1,73 @@
+<script setup lang="ts">
+const { getPackages, getTotalItems } = useDocs();
+const packages = getPackages();
+const totalItems = getTotalItems();
+
+const packageIcons: Record<string, string> = {
+  stdlib: '📦',
+  platform: '🖥️',
+  vue: '💚',
+  oxlint: '🔍',
+};
+</script>
+
+<template>
+  <div class="max-w-3xl min-w-0">
+    <!-- Hero -->
+    <div class="mb-12">
+      <h1 class="text-3xl font-bold tracking-tight text-(--color-text) mb-3">
+        @robonen/tools
+      </h1>
+      <p class="text-lg text-(--color-text-soft) leading-relaxed">
+        A collection of TypeScript utilities, Vue composables, and developer tools.
+        Auto-generated documentation from source types and JSDoc annotations.
+      </p>
+      <div class="mt-4 flex items-center gap-4 text-sm text-(--color-text-mute)">
+        <span>{{ packages.length }} packages</span>
+        <span>·</span>
+        <span>{{ totalItems }} documented items</span>
+      </div>
+    </div>
+
+    <!-- Package cards -->
+    <div class="grid gap-4 sm:grid-cols-2">
+      <NuxtLink
+        v-for="pkg in packages"
+        :key="pkg.slug"
+        :to="`/${pkg.slug}`"
+        class="group block p-5 rounded-xl border border-(--color-border) hover:border-brand-300 hover:shadow-sm transition-all bg-(--color-bg)"
+      >
+        <div class="flex items-start gap-3">
+          <span class="text-2xl">{{ packageIcons[pkg.slug] ?? '📦' }}</span>
+          <div class="min-w-0">
+            <h2 class="font-semibold text-(--color-text) group-hover:text-brand-600 transition-colors">
+              {{ pkg.name }}
+            </h2>
+            <p class="text-sm text-(--color-text-soft) mt-1">
+              {{ pkg.description }}
+            </p>
+            <div class="mt-3 flex items-center gap-3 text-xs text-(--color-text-mute)">
+              <span>v{{ pkg.version }}</span>
+              <span>·</span>
+              <span>{{ pkg.categories.reduce((sum, c) => sum + c.items.length, 0) }} items</span>
+              <span>·</span>
+              <span>{{ pkg.categories.length }} categories</span>
+            </div>
+          </div>
+        </div>
+      </NuxtLink>
+    </div>
+
+    <!-- Quick start -->
+    <div class="mt-12">
+      <h2 class="text-lg font-semibold text-(--color-text) mb-4">
+        Quick Start
+      </h2>
+      <div class="space-y-3">
+        <div v-for="pkg in packages" :key="pkg.slug">
+          <DocsCode :code="`pnpm add ${pkg.name}`" lang="bash" />
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
--- a/docs/modules/extractor/extract.ts
+++ b/docs/modules/extractor/extract.ts
@@ -0,0 +1,744 @@
+/**
+ * ts-morph based metadata extractor for @robonen/tools packages.
+ *
+ * Scans package source files, extracts JSDoc annotations and TypeScript signatures,
+ * and produces a structured JSON metadata file consumed by the Nuxt docs site.
+ */
+
+import { resolve, relative, dirname } from 'node:path';
+import { existsSync, readFileSync } from 'node:fs';
+import {
+  Project,
+  type SourceFile,
+  type FunctionDeclaration,
+  type ClassDeclaration,
+  type InterfaceDeclaration,
+  type TypeAliasDeclaration,
+  type JSDoc,
+  type JSDocTag,
+  type MethodDeclaration,
+  type PropertyDeclaration,
+  type PropertySignature,
+  SyntaxKind,
+  type Node,
+} from 'ts-morph';
+import type {
+  DocsMetadata,
+  PackageMeta,
+  CategoryMeta,
+  ItemMeta,
+  ParamMeta,
+  ReturnMeta,
+  TypeParamMeta,
+  MethodMeta,
+  PropertyMeta,
+} from './types';
+
+/** Repository root — docs/modules/extractor → three levels up */
+const ROOT = resolve(import.meta.dirname, '..', '..', '..');
+
+/** Packages to document — relative paths from repo root */
+const PACKAGES: PackageConfig[] = [
+  { path: 'core/stdlib', slug: 'stdlib' },
+  { path: 'core/platform', slug: 'platform' },
+  { path: 'web/vue', slug: 'vue' },
+  { path: 'configs/oxlint', slug: 'oxlint' },
+];
+
+interface PackageConfig {
+  path: string;
+  slug: string;
+}
+
+// ── Helpers ────────────────────────────────────────────────────────────────
+
+function toKebabCase(str: string): string {
+  return str
+    .replace(/([a-z0-9])([A-Z])/g, '$1-$2')
+    .replace(/([A-Z])([A-Z][a-z])/g, '$1-$2')
+    .toLowerCase();
+}
+
+function slugify(name: string): string {
+  return toKebabCase(name);
+}
+
+function getJsDocTags(jsdocs: JSDoc[]): JSDocTag[] {
+  return jsdocs.flatMap(doc => doc.getTags());
+}
+
+function getTagValue(tags: JSDocTag[], tagName: string): string {
+  const tag = tags.find(t => t.getTagName() === tagName);
+  if (!tag) return '';
+  const comment = tag.getCommentText();
+  return comment?.trim() ?? '';
+}
+
+function getTagValues(tags: JSDocTag[], tagName: string): string[] {
+  return tags
+    .filter(t => t.getTagName() === tagName)
+    .map(t => {
+      const comment = t.getCommentText();
+      return comment?.trim() ?? '';
+    })
+    .filter(Boolean);
+}
+
+function getDescription(jsdocs: JSDoc[], tags: JSDocTag[]): string {
+  // Try @description tag first
+  const descTag = getTagValue(tags, 'description');
+  if (descTag) return descTag;
+
+  // Fall back to the main JSDoc comment text
+  for (const doc of jsdocs) {
+    const desc = doc.getDescription().trim();
+    if (desc) return desc;
+  }
+
+  return '';
+}
+
+function getExamples(tags: JSDocTag[]): string[] {
+  return tags
+    .filter(t => t.getTagName() === 'example')
+    .map(t => {
+      const text = t.getCommentText()?.trim() ?? '';
+      // Strip surrounding ```ts ... ``` if present
+      return text.replace(/^```(?:ts|typescript)?\n?/, '').replace(/\n?```$/, '').trim();
+    })
+    .filter(Boolean);
+}
+
+function extractParams(tags: JSDocTag[], node: FunctionDeclaration | MethodDeclaration): ParamMeta[] {
+  const params: ParamMeta[] = [];
+  const paramTags = tags.filter(t => t.getTagName() === 'param');
+
+  for (const param of node.getParameters()) {
+    const name = param.getName();
+    const type = param.getType().getText(param);
+    const optional = param.isOptional();
+    const defaultValue = param.getInitializer()?.getText() ?? null;
+
+    // Find matching @param tag
+    const paramTag = paramTags.find(t => {
+      const text = t.getCommentText() ?? '';
+      const tagText = t.getText();
+      return tagText.includes(name);
+    });
+
+    let description = '';
+    if (paramTag) {
+      const comment = paramTag.getCommentText() ?? '';
+      // Remove leading {type} annotation and param name
+      description = comment
+        .replace(/^\{[^}]*\}\s*/, '')
+        .replace(new RegExp(`^${name}\\s*[-–—]?\\s*`), '')
+        .replace(new RegExp(`^${name}\\s+`), '')
+        .replace(/^[-–—]\s*/, '')
+        .trim();
+    }
+
+    params.push({ name, type, description, optional, defaultValue });
+  }
+
+  return params;
+}
+
+function extractTypeParams(node: FunctionDeclaration | ClassDeclaration | InterfaceDeclaration | TypeAliasDeclaration): TypeParamMeta[] {
+  const typeParams = node.getTypeParameters();
+  return typeParams.map(tp => ({
+    name: tp.getName(),
+    constraint: tp.getConstraint()?.getText() ?? null,
+    default: tp.getDefault()?.getText() ?? null,
+    description: '',
+  }));
+}
+
+function extractReturnMeta(tags: JSDocTag[], node: FunctionDeclaration | MethodDeclaration): ReturnMeta | null {
+  const returnType = node.getReturnType().getText(node);
+  if (returnType === 'void') return null;
+
+  const returnsTag = getTagValue(tags, 'returns') || getTagValue(tags, 'return');
+  const description = returnsTag.replace(/^\{[^}]*\}\s*/, '').trim();
+
+  return { type: returnType, description };
+}
+
+function extractMethodMeta(method: MethodDeclaration): MethodMeta {
+  const jsdocs = method.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+  const name = method.getName();
+
+  // Simplified signature
+  const signature = method.getText().split('{')[0]?.trim() ?? '';
+
+  const visibility = method.getScope() ?? 'public';
+
+  return {
+    name,
+    description: getDescription(jsdocs, tags),
+    signatures: [signature],
+    params: extractParams(tags, method),
+    returns: extractReturnMeta(tags, method),
+    visibility,
+  };
+}
+
+function extractPropertyMeta(prop: PropertyDeclaration | PropertySignature): PropertyMeta {
+  const jsdocs = prop.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+
+  return {
+    name: prop.getName(),
+    type: prop.getType().getText(prop),
+    description: getDescription(jsdocs, tags),
+    optional: prop.hasQuestionToken?.() ?? false,
+    defaultValue: getTagValue(tags, 'default') || null,
+    readonly: prop.isReadonly?.() ?? false,
+  };
+}
+
+function getSourceDir(itemPath: string): string {
+  // Get the directory containing the item's index.ts
+  return dirname(itemPath);
+}
+
+function hasDemoFile(sourceFilePath: string): boolean {
+  const dir = getSourceDir(sourceFilePath);
+  return existsSync(resolve(dir, 'demo.vue'));
+}
+
+function readDemoSource(sourceFilePath: string): string {
+  const dir = getSourceDir(sourceFilePath);
+  const demoPath = resolve(dir, 'demo.vue');
+  if (!existsSync(demoPath)) return '';
+  return readFileSync(demoPath, 'utf-8');
+}
+
+function hasTestFile(sourceFilePath: string): boolean {
+  const dir = getSourceDir(sourceFilePath);
+  return existsSync(resolve(dir, 'index.test.ts'));
+}
+
+function inferCategory(sourceFilePath: string, tags: JSDocTag[]): string {
+  // Try @category tag first
+  const categoryTag = getTagValue(tags, 'category');
+  if (categoryTag) return categoryTag;
+
+  // Infer from directory structure
+  const parts = sourceFilePath.split('/src/');
+  if (parts[1]) {
+    const segments = parts[1].split('/');
+    // For patterns like: composables/browser/useIntervalFn/index.ts → "Browser"
+    // For patterns like: arrays/cluster/index.ts → "Arrays"
+    if (segments.length >= 2) {
+      const category = segments.length >= 3 ? segments[1] : segments[0];
+      if (category) {
+        return category.charAt(0).toUpperCase() + category.slice(1);
+      }
+    }
+  }
+
+  return 'General';
+}
+
+// ── Extraction ─────────────────────────────────────────────────────────────
+
+function extractFunction(fn: FunctionDeclaration, sourceFilePath: string, entryPoint: string): ItemMeta | null {
+  const name = fn.getName();
+  if (!name) return null;
+
+  // Skip private/internal functions
+  if (name.startsWith('_')) return null;
+
+  const jsdocs = fn.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+  const description = getDescription(jsdocs, tags);
+  const category = inferCategory(sourceFilePath, tags);
+
+  // Get signature text without body
+  const signatureText = fn.getOverloads().length > 0
+    ? fn.getOverloads().map(o => o.getText().trim())
+    : [fn.getText().split('{')[0]?.trim() + '{ ... }'];
+
+  return {
+    name,
+    slug: slugify(name),
+    kind: 'function',
+    description,
+    since: getTagValue(tags, 'since'),
+    signatures: signatureText,
+    params: extractParams(tags, fn),
+    returns: extractReturnMeta(tags, fn),
+    typeParams: extractTypeParams(fn),
+    examples: getExamples(tags),
+    methods: [],
+    properties: [],
+    hasDemo: hasDemoFile(sourceFilePath),
+    demoSource: readDemoSource(sourceFilePath),
+    hasTests: hasTestFile(sourceFilePath),
+    relatedTypes: [],
+    sourcePath: relative(ROOT, sourceFilePath),
+    entryPoint,
+  };
+}
+
+function extractClass(cls: ClassDeclaration, sourceFilePath: string, entryPoint: string): ItemMeta | null {
+  const name = cls.getName();
+  if (!name) return null;
+
+  const jsdocs = cls.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+
+  const methods = cls.getMethods()
+    .filter(m => (m.getScope() ?? 'public') === 'public')
+    .filter(m => !m.getName().startsWith('_'))
+    .map(extractMethodMeta);
+
+  const properties = cls.getProperties()
+    .filter(p => (p.getScope() ?? 'public') === 'public')
+    .map(p => extractPropertyMeta(p));
+
+  // Also include get accessors as readonly properties
+  const getters = cls.getGetAccessors()
+    .filter(g => (g.getScope() ?? 'public') === 'public')
+    .map(g => ({
+      name: g.getName(),
+      type: g.getReturnType().getText(g),
+      description: getDescription(g.getJsDocs(), getJsDocTags(g.getJsDocs())),
+      optional: false,
+      defaultValue: null,
+      readonly: true,
+    }));
+
+  // Build class signature
+  const typeParams = cls.getTypeParameters();
+  const typeParamStr = typeParams.length > 0
+    ? `<${typeParams.map(tp => tp.getText()).join(', ')}>`
+    : '';
+  const extendsClause = cls.getExtends() ? ` extends ${cls.getExtends()!.getText()}` : '';
+  const implementsClause = cls.getImplements().length > 0
+    ? ` implements ${cls.getImplements().map(i => i.getText()).join(', ')}`
+    : '';
+  const signature = `class ${name}${typeParamStr}${extendsClause}${implementsClause}`;
+
+  return {
+    name,
+    slug: slugify(name),
+    kind: 'class',
+    description: getDescription(jsdocs, tags),
+    since: getTagValue(tags, 'since'),
+    signatures: [signature],
+    params: [],
+    returns: null,
+    typeParams: extractTypeParams(cls),
+    examples: getExamples(tags),
+    methods,
+    properties: [...properties, ...getters],
+    hasDemo: hasDemoFile(sourceFilePath),
+    demoSource: readDemoSource(sourceFilePath),
+    hasTests: hasTestFile(sourceFilePath),
+    relatedTypes: [],
+    sourcePath: relative(ROOT, sourceFilePath),
+    entryPoint,
+  };
+}
+
+function extractInterface(iface: InterfaceDeclaration, sourceFilePath: string, entryPoint: string): ItemMeta | null {
+  const name = iface.getName();
+  if (!name) return null;
+
+  const jsdocs = iface.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+
+  const properties = iface.getProperties().map(p => extractPropertyMeta(p));
+
+  const typeParams = iface.getTypeParameters();
+  const typeParamStr = typeParams.length > 0
+    ? `<${typeParams.map(tp => tp.getText()).join(', ')}>`
+    : '';
+  const extendsExprs = iface.getExtends();
+  const extendsStr = extendsExprs.length > 0
+    ? ` extends ${extendsExprs.map(e => e.getText()).join(', ')}`
+    : '';
+  const signature = `interface ${name}${typeParamStr}${extendsStr}`;
+
+  return {
+    name,
+    slug: slugify(name),
+    kind: 'interface',
+    description: getDescription(jsdocs, tags),
+    since: getTagValue(tags, 'since'),
+    signatures: [signature],
+    params: [],
+    returns: null,
+    typeParams: extractTypeParams(iface),
+    examples: getExamples(tags),
+    methods: [],
+    properties,
+    hasDemo: hasDemoFile(sourceFilePath),
+    demoSource: readDemoSource(sourceFilePath),
+    hasTests: hasTestFile(sourceFilePath),
+    relatedTypes: [],
+    sourcePath: relative(ROOT, sourceFilePath),
+    entryPoint,
+  };
+}
+
+function extractTypeAlias(typeAlias: TypeAliasDeclaration, sourceFilePath: string, entryPoint: string): ItemMeta | null {
+  const name = typeAlias.getName();
+  if (!name) return null;
+
+  const jsdocs = typeAlias.getJsDocs();
+  const tags = getJsDocTags(jsdocs);
+
+  const signature = typeAlias.getText().trim();
+
+  return {
+    name,
+    slug: slugify(name),
+    kind: 'type',
+    description: getDescription(jsdocs, tags),
+    since: getTagValue(tags, 'since'),
+    signatures: [signature],
+    params: [],
+    returns: null,
+    typeParams: extractTypeParams(typeAlias),
+    examples: getExamples(tags),
+    methods: [],
+    properties: [],
+    hasDemo: hasDemoFile(sourceFilePath),
+    demoSource: readDemoSource(sourceFilePath),
+    hasTests: hasTestFile(sourceFilePath),
+    relatedTypes: [],
+    sourcePath: relative(ROOT, sourceFilePath),
+    entryPoint,
+  };
+}
+
+// ── Source Tree Walking ────────────────────────────────────────────────────
+
+function collectExportedItems(
+  sourceFile: SourceFile,
+  entryPoint: string,
+  visited: Set<string> = new Set(),
+): ItemMeta[] {
+  const filePath = sourceFile.getFilePath();
+  if (visited.has(filePath)) return [];
+  visited.add(filePath);
+
+  const items: ItemMeta[] = [];
+
+  // Direct exports from this file
+  for (const fn of sourceFile.getFunctions()) {
+    if (!fn.isExported()) continue;
+
+    // Skip implementation signatures that have overloads
+    const overloads = fn.getOverloads();
+    if (overloads.length > 0) {
+      // Use the first overload's doc for metadata, but collect all signatures
+      const firstOverload = overloads[0]!;
+      const jsdocs = firstOverload.getJsDocs();
+      const tags = getJsDocTags(jsdocs);
+      const name = fn.getName();
+      if (!name || name.startsWith('_')) continue;
+
+      const item: ItemMeta = {
+        name,
+        slug: slugify(name),
+        kind: 'function',
+        description: getDescription(jsdocs, tags),
+        since: getTagValue(tags, 'since'),
+        signatures: overloads.map(o => o.getText().trim()),
+        params: extractParams(tags, fn),
+        returns: extractReturnMeta(tags, fn),
+        typeParams: extractTypeParams(fn),
+        examples: getExamples(tags),
+        methods: [],
+        properties: [],
+        hasDemo: hasDemoFile(filePath),
+        demoSource: readDemoSource(filePath),
+        hasTests: hasTestFile(filePath),
+        relatedTypes: [],
+        sourcePath: relative(ROOT, filePath),
+        entryPoint,
+      };
+      items.push(item);
+    } else {
+      const item = extractFunction(fn, filePath, entryPoint);
+      if (item) items.push(item);
+    }
+  }
+
+  for (const cls of sourceFile.getClasses()) {
+    if (!cls.isExported()) continue;
+    const item = extractClass(cls, filePath, entryPoint);
+    if (item) items.push(item);
+  }
+
+  for (const iface of sourceFile.getInterfaces()) {
+    if (!iface.isExported()) continue;
+    // Skip internal interfaces (e.g. Options, Return types that are documented inline)
+    const name = iface.getName();
+    const jsdocs = iface.getJsDocs();
+    const tags = getJsDocTags(jsdocs);
+    const hasCategory = getTagValue(tags, 'category') !== '';
+    // Only include interfaces with @category or that have significant documentation
+    if (!hasCategory && jsdocs.length === 0) continue;
+    const item = extractInterface(iface, filePath, entryPoint);
+    if (item) items.push(item);
+  }
+
+  for (const typeAlias of sourceFile.getTypeAliases()) {
+    if (!typeAlias.isExported()) continue;
+    const jsdocs = typeAlias.getJsDocs();
+    const tags = getJsDocTags(jsdocs);
+    const hasCategory = getTagValue(tags, 'category') !== '';
+    if (!hasCategory && jsdocs.length === 0) continue;
+    const item = extractTypeAlias(typeAlias, filePath, entryPoint);
+    if (item) items.push(item);
+  }
+
+  // Follow barrel re-exports: export * from './...'
+  for (const exportDecl of sourceFile.getExportDeclarations()) {
+    const moduleSpecifier = exportDecl.getModuleSpecifierValue();
+    if (!moduleSpecifier) continue;
+
+    const referencedFile = exportDecl.getModuleSpecifierSourceFile();
+    if (referencedFile) {
+      items.push(...collectExportedItems(referencedFile, entryPoint, visited));
+    }
+  }
+
+  return items;
+}
+
+// ── Co-located Type Grouping ───────────────────────────────────────────────
+
+/**
+ * Groups types/interfaces from `types.ts` files with their sibling
+ * class/function items from the same directory.
+ *
+ * For example, Transition and TransitionConfig from StateMachine/types.ts
+ * get attached as relatedTypes of StateMachine and AsyncStateMachine.
+ */
+function groupCoLocatedTypes(items: ItemMeta[]): ItemMeta[] {
+  // Build a map: directory → items from types.ts
+  const typesByDir = new Map<string, ItemMeta[]>();
+  // Build a map: directory → primary items (classes, functions)
+  const primaryByDir = new Map<string, ItemMeta[]>();
+
+  for (const item of items) {
+    const dir = dirname(item.sourcePath);
+    const isTypesFile = item.sourcePath.endsWith('/types.ts');
+    const isSecondary = isTypesFile && (item.kind === 'type' || item.kind === 'interface');
+
+    if (isSecondary) {
+      const existing = typesByDir.get(dir) ?? [];
+      existing.push(item);
+      typesByDir.set(dir, existing);
+    } else {
+      const existing = primaryByDir.get(dir) ?? [];
+      existing.push(item);
+      primaryByDir.set(dir, existing);
+    }
+  }
+
+  // Attach co-located types to their primary items
+  const absorbed = new Set<string>();
+  for (const entry of Array.from(typesByDir.entries())) {
+    const [dir, types] = entry;
+    const primaries = primaryByDir.get(dir);
+    if (!primaries || primaries.length === 0) continue;
+
+    // Distribute types to all primary items in the same directory
+    for (const primary of primaries) {
+      primary.relatedTypes = [...types];
+    }
+    for (const t of types) {
+      absorbed.add(`${t.entryPoint}:${t.name}`);
+    }
+  }
+
+  // Return items without the absorbed types
+  return items.filter(item => !absorbed.has(`${item.entryPoint}:${item.name}`));
+}
+
+// ── Package Extraction ─────────────────────────────────────────────────────
+
+function extractPackage(config: PackageConfig): PackageMeta | null {
+  const pkgDir = resolve(ROOT, config.path);
+  const pkgJsonPath = resolve(pkgDir, 'package.json');
+
+  if (!existsSync(pkgJsonPath)) {
+    console.warn(`[extractor] package.json not found: ${pkgJsonPath}`);
+    return null;
+  }
+
+  const pkgJson = JSON.parse(readFileSync(pkgJsonPath, 'utf-8'));
+  const exports = pkgJson.exports ?? {};
+
+  // Determine entry points
+  const entryPoints: Array<{ subpath: string; filePath: string }> = [];
+
+  for (const [subpath, value] of Object.entries(exports)) {
+    if (typeof value === 'object' && value !== null) {
+      const entry = (value as Record<string, string>).import ?? (value as Record<string, string>).types;
+      if (entry) {
+        // Map dist path back to source path
+        // e.g. "./dist/index.js" → "src/index.ts" or "./dist/browsers.js" → "src/browsers/index.ts"
+        const srcPath = entry
+          .replace(/^\.\/dist\//, 'src/')
+          .replace(/\.js$/, '.ts')
+          .replace(/\.d\.ts$/, '.ts');
+
+        const fullPath = resolve(pkgDir, srcPath);
+        if (existsSync(fullPath)) {
+          entryPoints.push({ subpath, filePath: fullPath });
+        } else {
+          // Try index.ts in subdirectory
+          const altPath = resolve(pkgDir, srcPath.replace(/\.ts$/, '/index.ts'));
+          if (existsSync(altPath)) {
+            entryPoints.push({ subpath, filePath: altPath });
+          } else {
+            console.warn(`[extractor] Entry point not found: ${fullPath} or ${altPath}`);
+          }
+        }
+      }
+    }
+  }
+
+  if (entryPoints.length === 0) {
+    console.warn(`[extractor] No entry points found for ${pkgJson.name}`);
+    return null;
+  }
+
+  // Create ts-morph project for this package
+  const tsconfigPath = resolve(pkgDir, 'tsconfig.json');
+  const project = new Project({
+    tsConfigFilePath: existsSync(tsconfigPath) ? tsconfigPath : undefined,
+    skipAddingFilesFromTsConfig: true,
+  });
+
+  // Add entry files
+  for (const ep of entryPoints) {
+    project.addSourceFileAtPath(ep.filePath);
+  }
+
+  // Resolve all referenced files
+  project.resolveSourceFileDependencies();
+
+  // Extract items from all entry points
+  const allItems: ItemMeta[] = [];
+  for (const ep of entryPoints) {
+    const sourceFile = project.getSourceFile(ep.filePath);
+    if (!sourceFile) continue;
+    const items = collectExportedItems(sourceFile, ep.subpath);
+    allItems.push(...items);
+  }
+
+  // Deduplicate by name (overloaded functions may appear once already)
+  const seen = new Set<string>();
+  const uniqueItems = allItems.filter(item => {
+    const key = `${item.entryPoint}:${item.name}`;
+    if (seen.has(key)) return false;
+    seen.add(key);
+    return true;
+  });
+
+  // Group co-located types with their parent class/function.
+  // Types/interfaces from a types.ts file in the same directory as a
+  // class or function become relatedTypes of that primary item.
+  const groupedItems = groupCoLocatedTypes(uniqueItems);
+
+  // Group by category
+  const categoryMap = new Map<string, ItemMeta[]>();
+  for (const item of groupedItems) {
+    // Infer category from source path if not set
+    const jsdocCategory = inferCategoryFromItem(item);
+    const existing = categoryMap.get(jsdocCategory) ?? [];
+    existing.push(item);
+    categoryMap.set(jsdocCategory, existing);
+  }
+
+  const categories: CategoryMeta[] = Array.from(categoryMap.entries())
+    .map(([name, items]) => ({
+      name,
+      slug: slugify(name),
+      items: items.sort((a, b) => a.name.localeCompare(b.name)),
+    }))
+    .sort((a, b) => a.name.localeCompare(b.name));
+
+  return {
+    name: pkgJson.name,
+    version: pkgJson.version,
+    description: pkgJson.description ?? '',
+    slug: config.slug,
+    entryPoints: entryPoints.map(ep => ep.subpath),
+    categories,
+  };
+}
+
+function inferCategoryFromItem(item: ItemMeta): string {
+  // Parse from source path
+  const parts = item.sourcePath.split('/src/');
+  if (parts.length < 2) return 'General';
+
+  const segments = parts[1]!.split('/');
+
+  // Patterns:
+  // composables/browser/useIntervalFn/index.ts → "Browser"
+  // arrays/cluster/index.ts → "Arrays"
+  // patterns/behavioral/PubSub/index.ts → "Patterns"
+  // types/js/primitives.ts → "Types"
+  // structs/Stack/index.ts → "Data Structures" (use @category if available)
+
+  if (segments[0] === 'composables' && segments.length >= 3) {
+    const cat = segments[1]!;
+    return cat.charAt(0).toUpperCase() + cat.slice(1);
+  }
+
+  if (segments[0] && segments.length >= 2) {
+    const cat = segments[0];
+    return cat.charAt(0).toUpperCase() + cat.slice(1);
+  }
+
+  return 'General';
+}
+
+// ── Main ───────────────────────────────────────────────────────────────────
+
+export function extract(): DocsMetadata {
+  console.log('[extractor] Starting metadata extraction...');
+
+  const packages: PackageMeta[] = [];
+
+  for (const config of PACKAGES) {
+    console.log(`[extractor] Processing ${config.path}...`);
+    const pkg = extractPackage(config);
+    if (pkg) {
+      const itemCount = pkg.categories.reduce((sum, c) => sum + c.items.length, 0);
+      console.log(`[extractor]   → ${pkg.name}@${pkg.version}: ${itemCount} items in ${pkg.categories.length} categories`);
+      packages.push(pkg);
+    }
+  }
+
+  const metadata: DocsMetadata = {
+    packages,
+    generatedAt: new Date().toISOString(),
+  };
+
+  const totalItems = packages.reduce(
+    (sum, pkg) => sum + pkg.categories.reduce((s, c) => s + c.items.length, 0),
+    0,
+  );
+  console.log(`[extractor] Done — ${totalItems} items across ${packages.length} packages`);
+
+  return metadata;
+}
+
+// Allow running directly — prints metadata as JSON to stdout
+if (import.meta.filename === process.argv[1]) {
+  const metadata = extract();
+  console.log(JSON.stringify(metadata, null, 2));
+}
--- a/docs/modules/extractor/index.ts
+++ b/docs/modules/extractor/index.ts
@@ -0,0 +1,146 @@
+/**
+ * Nuxt module that extracts TypeScript metadata from source packages
+ * and provides it as a virtual module `#docs/metadata`.
+ *
+ * Runs extraction at build start and makes the data available to all
+ * pages/components via `import metadata from '#docs/metadata'`.
+ */
+
+import { defineNuxtModule, addTemplate, createResolver } from '@nuxt/kit';
+import { resolve, dirname } from 'node:path';
+import type { DocsMetadata } from './types';
+
+export default defineNuxtModule({
+  meta: {
+    name: 'docs-extractor',
+    configKey: 'docsExtractor',
+  },
+
+  async setup(_options, nuxt) {
+    const { resolve: resolveModule } = createResolver(import.meta.url);
+    const ROOT = resolve(import.meta.dirname, '..', '..', '..');
+
+    // Run extraction immediately during setup so metadata is available
+    // when templates are resolved (app:templates phase runs before build:before)
+    console.log('[docs-extractor] Running metadata extraction...');
+    const { extract } = await import('./extract');
+    const metadata: DocsMetadata = extract();
+
+    // Add Vite resolve aliases for source packages so demo.vue imports resolve.
+    // The web/vue package uses `@/` path aliases (e.g. `@/composables/...`).
+    // We prepend them via vite:extendConfig so they take priority over Nuxt's
+    // built-in `@` → srcDir alias.
+    const vueSrc = resolve(ROOT, 'web/vue/src');
+
+    nuxt.hook('vite:extendConfig', (config) => {
+      const existing = config.resolve?.alias;
+      const sourceAliases = [
+        { find: '@/composables', replacement: resolve(vueSrc, 'composables') },
+        { find: '@/types', replacement: resolve(vueSrc, 'types') },
+        { find: '@/utils', replacement: resolve(vueSrc, 'utils') },
+      ];
+
+      if (Array.isArray(existing)) {
+        existing.unshift(...sourceAliases);
+      } else {
+        config.resolve ??= {};
+        config.resolve.alias = [
+          ...sourceAliases,
+          ...Object.entries(existing ?? {}).map(([find, replacement]) => ({ find, replacement: replacement as string })),
+        ];
+      }
+    });
+
+    // Provide metadata as a virtual template
+    addTemplate({
+      filename: 'docs-metadata.ts',
+      write: true,
+      getContents: () => {
+        const json = JSON.stringify(metadata, null, 2);
+        return `export default ${json} as const;`;
+      },
+    });
+
+    // Register the alias for the virtual module
+    nuxt.options.alias['#docs/metadata'] = resolve(nuxt.options.buildDir, 'docs-metadata');
+
+    // Add types reference
+    addTemplate({
+      filename: 'docs-metadata-types.d.ts',
+      write: true,
+      getContents: () => {
+        const typesPath = resolveModule('./types');
+        return `
+import type { DocsMetadata } from '${typesPath}';
+declare module '#docs/metadata' {
+  const metadata: DocsMetadata;
+  export default metadata;
+}
+`;
+      },
+    });
+
+    // Register prerender routes from metadata
+    nuxt.hook('prerender:routes', async ({ routes }: { routes: Set<string> }) => {
+      if (metadata.packages.length === 0) return;
+
+      for (const pkg of metadata.packages) {
+        routes.add(`/${pkg.slug}`);
+        for (const category of pkg.categories) {
+          for (const item of category.items) {
+            routes.add(`/${pkg.slug}/${item.slug}`);
+          }
+        }
+      }
+
+      console.log(`[docs-extractor] Registered ${routes.size} routes for prerender`);
+    });
+
+    // Generate demo component import map
+    addTemplate({
+      filename: 'docs-demos.ts',
+      write: true,
+      getContents: () => {
+        const entries: string[] = [];
+
+        for (const pkg of metadata.packages) {
+          for (const cat of pkg.categories) {
+            for (const item of cat.items) {
+              if (item.hasDemo) {
+                const demoPath = resolve(ROOT, dirname(item.sourcePath), 'demo.vue');
+                entries.push(`  '${pkg.slug}/${item.slug}': defineAsyncComponent(() => import('${demoPath}')),`);
+              }
+            }
+          }
+        }
+
+        if (entries.length === 0) {
+          return `import type { Component } from 'vue';\nexport const demos: Record<string, Component> = {};\n`;
+        }
+
+        return [
+          `import { defineAsyncComponent } from 'vue';`,
+          `import type { Component } from 'vue';`,
+          ``,
+          `export const demos: Record<string, Component> = {`,
+          ...entries,
+          `};`,
+          ``,
+        ].join('\n');
+      },
+    });
+
+    nuxt.options.alias['#docs/demos'] = resolve(nuxt.options.buildDir, 'docs-demos');
+
+    addTemplate({
+      filename: 'docs-demos-types.d.ts',
+      write: true,
+      getContents: () => `
+import type { Component } from 'vue';
+declare module '#docs/demos' {
+  export const demos: Record<string, Component>;
+}
+`,
+    });
+  },
+});
--- a/docs/modules/extractor/types.ts
+++ b/docs/modules/extractor/types.ts
@@ -0,0 +1,112 @@
+/**
+ * Metadata types for the documentation extractor.
+ * These types represent the structured data extracted from source packages
+ * via ts-morph, used to generate documentation pages.
+ */
+
+export interface DocsMetadata {
+  packages: PackageMeta[];
+  generatedAt: string;
+}
+
+export interface PackageMeta {
+  /** Package name from package.json, e.g. "@robonen/stdlib" */
+  name: string;
+  /** Package version */
+  version: string;
+  /** Package description from package.json */
+  description: string;
+  /** URL-friendly slug derived from package name, e.g. "stdlib" */
+  slug: string;
+  /** Subpath export entries (e.g. "." or "./browsers") */
+  entryPoints: string[];
+  /** All documented items grouped by category */
+  categories: CategoryMeta[];
+}
+
+export interface CategoryMeta {
+  /** Category name from @category JSDoc tag or directory name */
+  name: string;
+  /** URL-friendly slug */
+  slug: string;
+  /** Items in this category */
+  items: ItemMeta[];
+}
+
+export interface ItemMeta {
+  /** Export name */
+  name: string;
+  /** URL-friendly slug (camelCase → kebab-case) */
+  slug: string;
+  /** Kind of export */
+  kind: 'function' | 'class' | 'type' | 'interface' | 'enum' | 'variable';
+  /** Description from @description tag or first JSDoc line */
+  description: string;
+  /** Version when this item was introduced */
+  since: string;
+  /** Full TypeScript signature(s) — supports overloads */
+  signatures: string[];
+  /** Function/method parameters */
+  params: ParamMeta[];
+  /** Return type description */
+  returns: ReturnMeta | null;
+  /** Template/generic type parameters */
+  typeParams: TypeParamMeta[];
+  /** Code examples from @example tags */
+  examples: string[];
+  /** Class methods (only for kind === 'class') */
+  methods: MethodMeta[];
+  /** Class/interface properties (only for kind === 'class' or 'interface') */
+  properties: PropertyMeta[];
+  /** Whether a demo.vue file exists alongside */
+  hasDemo: boolean;
+  /** Raw source code of the demo.vue file (for syntax-highlighted display) */
+  demoSource: string;
+  /** Whether an index.test.ts file exists alongside */
+  hasTests: boolean;
+  /** Related types/interfaces co-located in the same module directory */
+  relatedTypes: ItemMeta[];
+  /** Relative path to the source file from repo root */
+  sourcePath: string;
+  /** Subpath export this belongs to (e.g. "." or "./browsers") */
+  entryPoint: string;
+}
+
+export interface ParamMeta {
+  name: string;
+  type: string;
+  description: string;
+  optional: boolean;
+  defaultValue: string | null;
+}
+
+export interface ReturnMeta {
+  type: string;
+  description: string;
+}
+
+export interface TypeParamMeta {
+  name: string;
+  constraint: string | null;
+  default: string | null;
+  description: string;
+}
+
+export interface MethodMeta {
+  name: string;
+  description: string;
+  signatures: string[];
+  params: ParamMeta[];
+  returns: ReturnMeta | null;
+  /** Visibility: public, protected, private */
+  visibility: string;
+}
+
+export interface PropertyMeta {
+  name: string;
+  type: string;
+  description: string;
+  optional: boolean;
+  defaultValue: string | null;
+  readonly: boolean;
+}
--- a/docs/nuxt.config.ts
+++ b/docs/nuxt.config.ts
@@ -0,0 +1,53 @@
+import tailwindcss from '@tailwindcss/vite';
+
+export default defineNuxtConfig({
+  future: {
+    compatibilityVersion: 4,
+  },
+
+  modules: [
+    '@nuxt/fonts',
+    './modules/extractor',
+  ],
+
+  vite: {
+    plugins: [
+      tailwindcss() as any,
+    ],
+  },
+
+  css: ['~/assets/css/main.css'],
+
+  ssr: true,
+
+  routeRules: {
+    '/**': { prerender: true },
+  },
+
+  nitro: {
+    prerender: {
+      crawlLinks: true,
+    },
+  },
+
+  fonts: {
+    families: [
+      { name: 'Inter', provider: 'google', weights: [400, 500, 600, 700] },
+      { name: 'JetBrains Mono', provider: 'google', weights: [400, 500] },
+    ],
+  },
+
+  app: {
+    head: {
+      title: '@robonen/tools — Documentation',
+      meta: [
+        { name: 'description', content: 'Auto-generated documentation for @robonen/tools monorepo' },
+      ],
+      htmlAttrs: {
+        lang: 'en',
+      },
+    },
+  },
+
+  compatibilityDate: '2026-02-15',
+});
--- a/docs/package.json
+++ b/docs/package.json
@@ -0,0 +1,29 @@
+{
+  "name": "@robonen/docs",
+  "version": "0.0.1",
+  "private": true,
+  "license": "Apache-2.0",
+  "description": "Auto-generated documentation site for @robonen/tools",
+  "type": "module",
+  "scripts": {
+    "dev": "nuxt dev",
+    "build": "nuxt build",
+    "generate": "nuxt generate",
+    "preview": "nuxt preview",
+    "extract": "jiti ./modules/extractor/extract.ts"
+  },
+  "dependencies": {
+    "shiki": "^3.4.2"
+  },
+  "devDependencies": {
+    "@nuxt/fonts": "^0.11.4",
+    "@nuxt/kit": "^4.3.1",
+    "@tailwindcss/vite": "^4.1.0",
+    "jiti": "^2.6.1",
+    "nuxt": "catalog:",
+    "tailwindcss": "^4.1.0",
+    "ts-morph": "^25.0.0",
+    "vue": "catalog:",
+    "vue-router": "^4.5.1"
+  }
+}
--- a/docs/tsconfig.json
+++ b/docs/tsconfig.json
@@ -0,0 +1,3 @@
+{
+  "extends": "./.nuxt/tsconfig.json"
+}