diff --git a/apps/web/package.json b/apps/web/package.json
index 49df51f..b2b916b 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -17,6 +17,7 @@
     "@xyflow/react": "^12.10.0",
     "bcryptjs": "^3.0.3",
     "clsx": "^2.1.1",
+    "cmdk": "^1.1.1",
     "ioredis": "^5.9.2",
     "lucide-react": "^0.469.0",
     "next": "^15.1.0",
diff --git a/apps/web/src/app/api/demo/seed/route.ts b/apps/web/src/app/api/demo/seed/route.ts
new file mode 100644
index 0000000..f4f8c4b
--- /dev/null
+++ b/apps/web/src/app/api/demo/seed/route.ts
@@ -0,0 +1,33 @@
+import { NextResponse } from "next/server";
+import { auth } from "@/auth";
+import { prisma } from "@/lib/prisma";
+import { seedDemoData } from "@/lib/demo-data";
+
+export async function POST() {
+  try {
+    const session = await auth();
+    if (!session?.user?.id) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const user = await prisma.user.findUnique({
+      where: { id: session.user.id },
+      select: { demoSeeded: true },
+    });
+
+    if (!user) {
+      return NextResponse.json({ error: "User not found" }, { status: 404 });
+    }
+
+    if (user.demoSeeded) {
+      return NextResponse.json({ error: "Demo data already seeded" }, { status: 409 });
+    }
+
+    await seedDemoData(session.user.id);
+
+    return NextResponse.json({ success: true }, { status: 200 });
+  } catch (error) {
+    console.error("Error seeding demo data:", error);
+    return NextResponse.json({ error: "Internal server error" }, { status: 500 });
+  }
+}
diff --git a/apps/web/src/app/dashboard/keys/page.tsx b/apps/web/src/app/dashboard/keys/page.tsx
index 2cdf260..020d003 100644
--- a/apps/web/src/app/dashboard/keys/page.tsx
+++ b/apps/web/src/app/dashboard/keys/page.tsx
@@ -12,6 +12,7 @@ import {
   Shield,
 } from "lucide-react";
 import { cn } from "@/lib/utils";
+import { useKeyboardNav } from "@/hooks/use-keyboard-nav";
 
 interface ApiKey {
   id: string;
@@ -38,6 +39,21 @@ export default function ApiKeysPage() {
   const [revokingId, setRevokingId] = useState<string | null>(null);
   const [confirmRevokeId, setConfirmRevokeId] = useState<string | null>(null);
 
+  const handleKeySelect = useCallback(
+    (index: number) => {
+      const key = keys[index];
+      if (key) {
+        setConfirmRevokeId(key.id);
+      }
+    },
+    [keys]
+  );
+
+  const { selectedIndex } = useKeyboardNav({
+    itemCount: keys.length,
+    onSelect: handleKeySelect,
+  });
+
   const fetchKeys = useCallback(async () => {
     setIsLoading(true);
     try {
@@ -157,6 +173,7 @@ export default function ApiKeysPage() {
               onClick={() =>
                 copyToClipboard(newlyCreatedKey.key, "new-key")
               }
+              aria-label="Copy API key to clipboard"
               className={cn(
                 "p-3 rounded-lg border transition-all shrink-0",
                 copiedField === "new-key"
@@ -196,10 +213,11 @@ export default function ApiKeysPage() {
             <h2 className="text-sm font-semibold">Create New API Key</h2>
           </div>
           <div>
-            <label className="text-xs text-neutral-500 font-medium block mb-1.5">
+            <label htmlFor="key-name" className="text-xs text-neutral-500 font-medium block mb-1.5">
               Key Name (optional)
             </label>
             <input
+              id="key-name"
               type="text"
               value={newKeyName}
               onChange={(e) => setNewKeyName(e.target.value)}
@@ -271,10 +289,16 @@ export default function ApiKeysPage() {
             </div>
           ) : (
             <div className="divide-y divide-neutral-800">
-              {keys.map((apiKey) => (
+              {keys.map((apiKey, index) => (
                 <div
                   key={apiKey.id}
-                  className="flex items-center gap-4 px-6 py-4 group"
+                  data-keyboard-index={index}
+                  className={cn(
+                    "flex items-center gap-4 px-6 py-4 group transition-colors",
+                    index === selectedIndex
+                      ? "bg-emerald-500/5 ring-1 ring-inset ring-emerald-500/20"
+                      : ""
+                  )}
                 >
                   <div className="w-9 h-9 rounded-lg bg-neutral-800/50 border border-neutral-700/50 flex items-center justify-center shrink-0">
                     <Key className="w-4 h-4 text-neutral-500" />
diff --git a/apps/web/src/app/dashboard/layout.tsx b/apps/web/src/app/dashboard/layout.tsx
index 69481f9..306336d 100644
--- a/apps/web/src/app/dashboard/layout.tsx
+++ b/apps/web/src/app/dashboard/layout.tsx
@@ -16,6 +16,8 @@ import {
   Loader2,
 } from "lucide-react";
 import { cn } from "@/lib/utils";
+import { CommandPalette } from "@/components/command-palette";
+import { KeyboardShortcutsHelp, ShortcutsHint } from "@/components/keyboard-shortcuts-help";
 
 interface NavItem {
   href: string;
@@ -151,6 +153,7 @@ function VerificationBanner() {
         </div>
         <button
           onClick={() => setDismissed(true)}
+          aria-label="Dismiss verification banner"
           className="p-1 rounded text-amber-400/60 hover:text-amber-300 transition-colors shrink-0"
         >
           <X className="w-4 h-4" />
@@ -165,6 +168,9 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
 
   return (
     <div className="min-h-screen bg-neutral-950 flex">
+      <CommandPalette />
+      <KeyboardShortcutsHelp />
+      <ShortcutsHint />
       {/* Desktop Sidebar */}
       <aside className="hidden lg:block w-64 h-screen sticky top-0">
         <Sidebar />
@@ -189,13 +195,14 @@ export default function DashboardLayout({ children }: { children: ReactNode }) {
       </aside>
 
       {/* Main Content */}
-      <main className="flex-1 min-w-0">
+      <main id="main-content" className="flex-1 min-w-0">
         <VerificationBanner />
         {/* Mobile Header */}
         <header className="lg:hidden sticky top-0 z-30 bg-neutral-950/80 backdrop-blur-md border-b border-neutral-800 px-4 py-3">
           <div className="flex items-center justify-between">
             <button
               onClick={() => setSidebarOpen(true)}
+              aria-label="Open navigation menu"
               className="p-2 rounded-lg bg-neutral-900 border border-neutral-800 text-neutral-400 hover:text-neutral-100 transition-colors"
             >
               <Menu className="w-5 h-5" />
diff --git a/apps/web/src/app/dashboard/page.tsx b/apps/web/src/app/dashboard/page.tsx
index 2d548c0..3983c46 100644
--- a/apps/web/src/app/dashboard/page.tsx
+++ b/apps/web/src/app/dashboard/page.tsx
@@ -1,24 +1,29 @@
 import { Suspense } from "react";
 import { TraceList } from "@/components/trace-list";
+import { DemoSeedTrigger } from "@/components/demo-seed-trigger";
+import { DemoBanner } from "@/components/demo-banner";
 
 export const dynamic = "force-dynamic";
 
+interface TraceItem {
+  id: string;
+  name: string;
+  status: "RUNNING" | "COMPLETED" | "ERROR";
+  startedAt: string;
+  endedAt: string | null;
+  durationMs: number | null;
+  tags: string[];
+  metadata: Record<string, unknown>;
+  isDemo?: boolean;
+  _count: {
+    decisionPoints: number;
+    spans: number;
+    events: number;
+  };
+}
+
 interface TracesResponse {
-  traces: Array<{
-    id: string;
-    name: string;
-    status: "RUNNING" | "COMPLETED" | "ERROR";
-    startedAt: string;
-    endedAt: string | null;
-    durationMs: number | null;
-    tags: string[];
-    metadata: Record<string, unknown>;
-    _count: {
-      decisionPoints: number;
-      spans: number;
-      events: number;
-    };
-  }>;
+  traces: TraceItem[];
   total: number;
   page: number;
   limit: number;
@@ -55,14 +60,21 @@ async function getTraces(
 export default async function DashboardPage() {
   const data = await getTraces(50, 1);
 
+  const hasTraces = data.traces.length > 0;
+  const allTracesAreDemo =
+    hasTraces && data.traces.every((t) => t.isDemo === true);
+
   return (
-    <Suspense fallback={<div className="p-8 text-zinc-400">Loading traces...</div>}>
-      <TraceList
-        initialTraces={data.traces}
-        initialTotal={data.total}
-        initialTotalPages={data.totalPages}
-        initialPage={data.page}
-      />
-    </Suspense>
+    <DemoSeedTrigger hasTraces={hasTraces}>
+      {allTracesAreDemo && <DemoBanner allTracesAreDemo={allTracesAreDemo} />}
+      <Suspense fallback={<div className="p-8 text-zinc-400">Loading traces...</div>}>
+        <TraceList
+          initialTraces={data.traces}
+          initialTotal={data.total}
+          initialTotalPages={data.totalPages}
+          initialPage={data.page}
+        />
+      </Suspense>
+    </DemoSeedTrigger>
   );
 }
diff --git a/apps/web/src/app/globals.css b/apps/web/src/app/globals.css
index 98232b9..d7f33fe 100644
--- a/apps/web/src/app/globals.css
+++ b/apps/web/src/app/globals.css
@@ -36,3 +36,39 @@
     --font-mono: var(--font-jetbrains), 'JetBrains Mono', 'Fira Code', monospace;
   }
 }
+
+[data-animate="hidden"] {
+  opacity: 0;
+  transform: translateY(24px);
+  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
+    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+[data-animate="visible"] {
+  opacity: 1;
+  transform: translateY(0);
+}
+
+[data-animate="hidden"][style*="animation-delay"] {
+  transition-delay: inherit;
+}
+
+@media (prefers-reduced-motion: reduce) {
+  [data-animate="hidden"] {
+    opacity: 1;
+    transform: none;
+    transition: none;
+  }
+}
+
+a:focus-visible,
+button:focus-visible,
+input:focus-visible,
+select:focus-visible,
+textarea:focus-visible,
+[role="button"]:focus-visible,
+[tabindex]:focus-visible {
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
+  border-radius: 4px;
+}
diff --git a/apps/web/src/app/layout.tsx b/apps/web/src/app/layout.tsx
index cddd0de..fed6176 100644
--- a/apps/web/src/app/layout.tsx
+++ b/apps/web/src/app/layout.tsx
@@ -74,6 +74,12 @@ export default function RootLayout({
   return (
     <html lang="en" className="dark">
       <body className={`${inter.variable} ${jetbrainsMono.variable} bg-neutral-950 text-neutral-100 antialiased`}>
+        <a
+          href="#main-content"
+          className="sr-only focus:not-sr-only focus:fixed focus:top-4 focus:left-4 focus:z-[200] focus:px-4 focus:py-2 focus:rounded-lg focus:bg-emerald-500 focus:text-neutral-950 focus:font-semibold focus:text-sm focus:outline-none focus:ring-2 focus:ring-emerald-400 focus:ring-offset-2 focus:ring-offset-neutral-950"
+        >
+          Skip to content
+        </a>
         <SessionProvider>{children}</SessionProvider>
       </body>
     </html>
diff --git a/apps/web/src/app/page.tsx b/apps/web/src/app/page.tsx
index ed1071a..7c04d73 100644
--- a/apps/web/src/app/page.tsx
+++ b/apps/web/src/app/page.tsx
@@ -17,10 +17,11 @@ import {
   Clipboard,
   Shield,
 } from "lucide-react";
+import { AnimateOnScroll } from "@/components/animate-on-scroll";
 
 export default function HomePage() {
   return (
-    <div className="min-h-screen bg-neutral-950">
+    <main id="main-content" className="min-h-screen bg-neutral-950">
       <script
         type="application/ld+json"
         dangerouslySetInnerHTML={{
@@ -161,6 +162,7 @@ export default function HomePage() {
       {/* Features Section */}
       <section className="py-24 border-b border-neutral-800/50">
         <div className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
+          <AnimateOnScroll>
           <div className="text-center mb-16">
             <h2 className="text-3xl sm:text-4xl font-bold mb-4">
               Everything you need to understand your agents
@@ -169,9 +171,11 @@ export default function HomePage() {
               From decision trees to cost intelligence, get complete visibility into how your AI systems operate
             </p>
           </div>
+          </AnimateOnScroll>
 
           <div className="grid md:grid-cols-3 gap-8">
             {/* Feature 1: Decision Trees */}
+            <AnimateOnScroll delay={0}>
             <div className="group p-8 rounded-2xl border border-neutral-800/50 bg-gradient-to-b from-neutral-900/50 to-transparent hover:border-emerald-500/30 transition-all duration-300">
               <div className="w-14 h-14 rounded-xl bg-emerald-500/10 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform duration-300">
                 <GitBranch className="w-7 h-7 text-emerald-400" />
@@ -181,8 +185,10 @@ export default function HomePage() {
                 Visualize the complete reasoning behind every agent choice. See the branching logic, alternatives considered, and the path chosen.
               </p>
             </div>
+            </AnimateOnScroll>
 
             {/* Feature 2: Context Awareness */}
+            <AnimateOnScroll delay={100}>
             <div className="group p-8 rounded-2xl border border-neutral-800/50 bg-gradient-to-b from-neutral-900/50 to-transparent hover:border-emerald-500/30 transition-all duration-300">
               <div className="w-14 h-14 rounded-xl bg-emerald-500/10 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform duration-300">
                 <Brain className="w-7 h-7 text-emerald-400" />
@@ -192,8 +198,10 @@ export default function HomePage() {
                 Monitor context window utilization in real-time. Track what&apos;s being fed into your agents and what&apos;s being left behind.
               </p>
             </div>
+            </AnimateOnScroll>
 
             {/* Feature 3: Cost Intelligence */}
+            <AnimateOnScroll delay={200}>
             <div className="group p-8 rounded-2xl border border-neutral-800/50 bg-gradient-to-b from-neutral-900/50 to-transparent hover:border-emerald-500/30 transition-all duration-300">
               <div className="w-14 h-14 rounded-xl bg-emerald-500/10 flex items-center justify-center mb-6 group-hover:scale-110 transition-transform duration-300">
                 <DollarSign className="w-7 h-7 text-emerald-400" />
@@ -203,6 +211,7 @@ export default function HomePage() {
                 Track spending per decision, per agent, per trace. Get granular insights into where every dollar goes in your AI operations.
               </p>
             </div>
+            </AnimateOnScroll>
           </div>
         </div>
       </section>
@@ -211,6 +220,7 @@ export default function HomePage() {
       <section className="py-24 border-b border-neutral-800/50 relative">
         <div className="absolute inset-0 bg-[radial-gradient(ellipse_60%_40%_at_50%_50%,rgba(16,185,129,0.04),transparent)]" />
         <div className="relative max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
+          <AnimateOnScroll>
           <div className="text-center mb-16">
             <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full border border-neutral-700 bg-neutral-800/30 text-neutral-400 text-sm mb-6">
               <Zap className="w-4 h-4" />
@@ -223,9 +233,11 @@ export default function HomePage() {
               Go from zero to full agent observability in under five minutes
             </p>
           </div>
+          </AnimateOnScroll>
 
           <div className="grid md:grid-cols-3 gap-6 lg:gap-8">
             {/* Step 1: Install */}
+            <AnimateOnScroll delay={0}>
             <div className="relative p-8 rounded-2xl border border-neutral-800/50 bg-neutral-900/30">
               <div className="absolute -top-4 left-8">
                 <span className="inline-flex items-center justify-center w-8 h-8 rounded-full bg-emerald-500 text-neutral-950 text-sm font-bold shadow-lg shadow-emerald-500/25">
@@ -243,8 +255,10 @@ export default function HomePage() {
                 <code className="text-sm font-mono text-emerald-400">pip install vectry-agentlens</code>
               </div>
             </div>
+            </AnimateOnScroll>
 
             {/* Step 2: Instrument */}
+            <AnimateOnScroll delay={100}>
             <div className="relative p-8 rounded-2xl border border-neutral-800/50 bg-neutral-900/30">
               <div className="absolute -top-4 left-8">
                 <span className="inline-flex items-center justify-center w-8 h-8 rounded-full bg-emerald-500 text-neutral-950 text-sm font-bold shadow-lg shadow-emerald-500/25">
@@ -264,8 +278,10 @@ export default function HomePage() {
                 <code className="text-sm font-mono text-emerald-400">wrap_openai()</code>
               </div>
             </div>
+            </AnimateOnScroll>
 
             {/* Step 3: Observe */}
+            <AnimateOnScroll delay={200}>
             <div className="relative p-8 rounded-2xl border border-neutral-800/50 bg-neutral-900/30">
               <div className="absolute -top-4 left-8">
                 <span className="inline-flex items-center justify-center w-8 h-8 rounded-full bg-emerald-500 text-neutral-950 text-sm font-bold shadow-lg shadow-emerald-500/25">
@@ -283,6 +299,7 @@ export default function HomePage() {
                 <code className="text-sm font-mono text-emerald-400">agentlens.vectry.tech</code>
               </div>
             </div>
+            </AnimateOnScroll>
           </div>
 
           {/* Connecting arrows decoration */}
@@ -302,6 +319,7 @@ export default function HomePage() {
       <section className="py-24 border-b border-neutral-800/50">
         <div className="max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
           <div className="grid lg:grid-cols-2 gap-12 items-start">
+            <AnimateOnScroll>
             <div className="lg:sticky lg:top-8">
               <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full border border-neutral-700 bg-neutral-800/30 text-neutral-400 text-sm mb-6">
                 <Cpu className="w-4 h-4" />
@@ -331,8 +349,10 @@ export default function HomePage() {
                 ))}
               </ul>
             </div>
+            </AnimateOnScroll>
 
             {/* Code Blocks - Two patterns stacked */}
+            <AnimateOnScroll delay={150}>
             <div className="space-y-6">
               {/* Decorator Pattern */}
               <div className="rounded-xl overflow-hidden border border-neutral-800 bg-neutral-900/50 backdrop-blur-sm">
@@ -480,6 +500,7 @@ export default function HomePage() {
                 </pre>
               </div>
             </div>
+            </AnimateOnScroll>
           </div>
         </div>
       </section>
@@ -488,6 +509,7 @@ export default function HomePage() {
       <section className="py-24 border-b border-neutral-800/50 relative">
         <div className="absolute inset-0 bg-[radial-gradient(ellipse_50%_50%_at_50%_50%,rgba(16,185,129,0.03),transparent)]" />
         <div className="relative max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
+          <AnimateOnScroll>
           <div className="text-center mb-16">
             <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full border border-neutral-700 bg-neutral-800/30 text-neutral-400 text-sm mb-6">
               <Link2 className="w-4 h-4" />
@@ -500,7 +522,9 @@ export default function HomePage() {
               First-class support for the most popular AI frameworks. Drop in and start tracing.
             </p>
           </div>
+          </AnimateOnScroll>
 
+          <AnimateOnScroll>
           <div className="grid sm:grid-cols-3 gap-6 max-w-3xl mx-auto">
             {/* OpenAI */}
             <div className="group flex flex-col items-center p-8 rounded-2xl border border-neutral-800/50 bg-neutral-900/30 hover:border-emerald-500/20 transition-all duration-300">
@@ -538,6 +562,7 @@ export default function HomePage() {
               </span>
             </div>
           </div>
+          </AnimateOnScroll>
         </div>
       </section>
 
@@ -545,6 +570,7 @@ export default function HomePage() {
       <section className="py-24 border-b border-neutral-800/50 relative">
         <div className="absolute inset-0 bg-[radial-gradient(ellipse_70%_50%_at_50%_50%,rgba(16,185,129,0.04),transparent)]" />
         <div className="relative max-w-6xl mx-auto px-4 sm:px-6 lg:px-8">
+          <AnimateOnScroll>
           <div className="text-center mb-16">
             <div className="inline-flex items-center gap-2 px-4 py-2 rounded-full border border-neutral-700 bg-neutral-800/30 text-neutral-400 text-sm mb-6">
               <Shield className="w-4 h-4" />
@@ -557,7 +583,9 @@ export default function HomePage() {
               No hidden fees. Start free, scale as you grow. Every plan includes the full dashboard experience.
             </p>
           </div>
+          </AnimateOnScroll>
 
+          <AnimateOnScroll>
           <div className="grid md:grid-cols-3 gap-6 max-w-5xl mx-auto">
             {/* Free Tier */}
             <div className="relative flex flex-col p-8 rounded-2xl border border-neutral-800/50 bg-neutral-900/30 transition-all duration-300 hover:border-neutral-700">
@@ -657,6 +685,7 @@ export default function HomePage() {
               </a>
             </div>
           </div>
+          </AnimateOnScroll>
         </div>
       </section>
 
@@ -689,6 +718,6 @@ export default function HomePage() {
           </div>
         </div>
       </footer>
-    </div>
+    </main>
   );
 }
diff --git a/apps/web/src/components/animate-on-scroll.tsx b/apps/web/src/components/animate-on-scroll.tsx
new file mode 100644
index 0000000..cd018fd
--- /dev/null
+++ b/apps/web/src/components/animate-on-scroll.tsx
@@ -0,0 +1,60 @@
+"use client";
+
+import { useEffect, useRef, ReactNode } from "react";
+
+interface AnimateOnScrollProps {
+  children: ReactNode;
+  className?: string;
+  delay?: number;
+  threshold?: number;
+}
+
+export function AnimateOnScroll({
+  children,
+  className = "",
+  delay = 0,
+  threshold = 0.15,
+}: AnimateOnScrollProps) {
+  const ref = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const el = ref.current;
+    if (!el) return;
+
+    const prefersReduced = window.matchMedia(
+      "(prefers-reduced-motion: reduce)"
+    ).matches;
+
+    if (prefersReduced) {
+      el.setAttribute("data-animate", "visible");
+      return;
+    }
+
+    const observer = new IntersectionObserver(
+      (entries) => {
+        for (const entry of entries) {
+          if (entry.isIntersecting) {
+            entry.target.setAttribute("data-animate", "visible");
+            observer.unobserve(entry.target);
+          }
+        }
+      },
+      { threshold }
+    );
+
+    observer.observe(el);
+
+    return () => observer.disconnect();
+  }, [threshold]);
+
+  return (
+    <div
+      ref={ref}
+      data-animate="hidden"
+      className={className}
+      style={{ animationDelay: delay ? `${delay}ms` : undefined }}
+    >
+      {children}
+    </div>
+  );
+}
diff --git a/apps/web/src/components/command-palette.tsx b/apps/web/src/components/command-palette.tsx
new file mode 100644
index 0000000..ef81a5a
--- /dev/null
+++ b/apps/web/src/components/command-palette.tsx
@@ -0,0 +1,258 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+import { useRouter } from "next/navigation";
+import { signOut } from "next-auth/react";
+import { Command } from "cmdk";
+import {
+  Activity,
+  GitBranch,
+  Key,
+  Settings,
+  LogOut,
+  Plus,
+  Search,
+  ArrowRight,
+} from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface RecentTrace {
+  id: string;
+  name: string;
+  status: string;
+  startedAt: string;
+}
+
+export function CommandPalette() {
+  const router = useRouter();
+  const [open, setOpen] = useState(false);
+  const [recentTraces, setRecentTraces] = useState<RecentTrace[]>([]);
+  const [loading, setLoading] = useState(false);
+
+  const fetchRecentTraces = useCallback(async () => {
+    setLoading(true);
+    try {
+      const res = await fetch("/api/traces?limit=5", { cache: "no-store" });
+      if (res.ok) {
+        const data = await res.json();
+        setRecentTraces(data.traces ?? []);
+      }
+    } catch {
+      // Silently fail -- palette still works for navigation
+    } finally {
+      setLoading(false);
+    }
+  }, []);
+
+  useEffect(() => {
+    if (open) {
+      fetchRecentTraces();
+    }
+  }, [open, fetchRecentTraces]);
+
+  useEffect(() => {
+    function handleKeyDown(e: KeyboardEvent) {
+      if ((e.metaKey || e.ctrlKey) && e.key === "k") {
+        e.preventDefault();
+        setOpen((prev) => !prev);
+      }
+    }
+
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, []);
+
+  function runCommand(command: () => void) {
+    setOpen(false);
+    command();
+  }
+
+  if (!open) return null;
+
+  return (
+    <div className="fixed inset-0 z-[100]">
+      {/* Backdrop */}
+      <div
+        className="absolute inset-0 bg-black/60 backdrop-blur-sm"
+        onClick={() => setOpen(false)}
+      />
+
+      {/* Palette */}
+      <div className="absolute inset-0 flex items-start justify-center pt-[20vh] px-4">
+        <Command
+          className="w-full max-w-xl rounded-xl border border-neutral-800 bg-neutral-900/95 backdrop-blur-xl shadow-2xl shadow-black/40 overflow-hidden"
+          loop
+        >
+          {/* Search input */}
+          <div className="flex items-center gap-3 border-b border-neutral-800 px-4">
+            <Search className="w-4 h-4 text-neutral-500 shrink-0" />
+            <Command.Input
+              placeholder="Search traces, navigate, or run actions..."
+              className="w-full py-4 bg-transparent text-sm text-neutral-100 placeholder-neutral-500 outline-none"
+              autoFocus
+            />
+            <kbd className="hidden sm:inline-flex items-center gap-1 px-2 py-1 rounded bg-neutral-800 border border-neutral-700 text-[10px] font-mono text-neutral-500">
+              ESC
+            </kbd>
+          </div>
+
+          {/* Results */}
+          <Command.List className="max-h-80 overflow-y-auto p-2">
+            <Command.Empty className="py-8 text-center text-sm text-neutral-500">
+              No results found.
+            </Command.Empty>
+
+            {/* Recent Traces */}
+            {recentTraces.length > 0 && (
+              <Command.Group
+                heading="Recent Traces"
+                className="[&_[cmdk-group-heading]]:px-2 [&_[cmdk-group-heading]]:py-2 [&_[cmdk-group-heading]]:text-xs [&_[cmdk-group-heading]]:font-medium [&_[cmdk-group-heading]]:text-neutral-500"
+              >
+                {loading ? (
+                  <div className="px-2 py-3 text-xs text-neutral-500">
+                    Loading traces...
+                  </div>
+                ) : (
+                  recentTraces.map((trace) => (
+                    <Command.Item
+                      key={trace.id}
+                      value={`trace ${trace.name} ${trace.id}`}
+                      onSelect={() =>
+                        runCommand(() =>
+                          router.push(`/dashboard/traces/${trace.id}`)
+                        )
+                      }
+                      className={cn(
+                        "flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer transition-colors",
+                        "text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400"
+                      )}
+                    >
+                      <Activity className="w-4 h-4 shrink-0 text-neutral-500" />
+                      <span className="flex-1 truncate">{trace.name}</span>
+                      <span
+                        className={cn(
+                          "text-xs px-1.5 py-0.5 rounded",
+                          trace.status === "COMPLETED" &&
+                            "bg-emerald-500/10 text-emerald-400",
+                          trace.status === "ERROR" &&
+                            "bg-red-500/10 text-red-400",
+                          trace.status === "RUNNING" &&
+                            "bg-amber-500/10 text-amber-400"
+                        )}
+                      >
+                        {trace.status.toLowerCase()}
+                      </span>
+                      <ArrowRight className="w-3.5 h-3.5 shrink-0 opacity-0 group-data-[selected=true]:opacity-100" />
+                    </Command.Item>
+                  ))
+                )}
+              </Command.Group>
+            )}
+
+            {/* Navigation */}
+            <Command.Group
+              heading="Navigation"
+              className="[&_[cmdk-group-heading]]:px-2 [&_[cmdk-group-heading]]:py-2 [&_[cmdk-group-heading]]:text-xs [&_[cmdk-group-heading]]:font-medium [&_[cmdk-group-heading]]:text-neutral-500"
+            >
+              <Command.Item
+                value="Dashboard Traces"
+                onSelect={() =>
+                  runCommand(() => router.push("/dashboard"))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400 transition-colors"
+              >
+                <Activity className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">Dashboard</span>
+              </Command.Item>
+
+              <Command.Item
+                value="Decisions"
+                onSelect={() =>
+                  runCommand(() => router.push("/dashboard/decisions"))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400 transition-colors"
+              >
+                <GitBranch className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">Decisions</span>
+              </Command.Item>
+
+              <Command.Item
+                value="API Keys"
+                onSelect={() =>
+                  runCommand(() => router.push("/dashboard/keys"))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400 transition-colors"
+              >
+                <Key className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">API Keys</span>
+              </Command.Item>
+
+              <Command.Item
+                value="Settings"
+                onSelect={() =>
+                  runCommand(() => router.push("/dashboard/settings"))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400 transition-colors"
+              >
+                <Settings className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">Settings</span>
+              </Command.Item>
+            </Command.Group>
+
+            {/* Actions */}
+            <Command.Group
+              heading="Actions"
+              className="[&_[cmdk-group-heading]]:px-2 [&_[cmdk-group-heading]]:py-2 [&_[cmdk-group-heading]]:text-xs [&_[cmdk-group-heading]]:font-medium [&_[cmdk-group-heading]]:text-neutral-500"
+            >
+              <Command.Item
+                value="Create New API Key"
+                onSelect={() =>
+                  runCommand(() => router.push("/dashboard/keys"))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-emerald-500/10 data-[selected=true]:text-emerald-400 transition-colors"
+              >
+                <Plus className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">New API Key</span>
+              </Command.Item>
+
+              <Command.Item
+                value="Sign Out Logout"
+                onSelect={() =>
+                  runCommand(() => signOut({ callbackUrl: "/" }))
+                }
+                className="flex items-center gap-3 px-3 py-2.5 rounded-lg text-sm cursor-pointer text-neutral-300 data-[selected=true]:bg-red-500/10 data-[selected=true]:text-red-400 transition-colors"
+              >
+                <LogOut className="w-4 h-4 shrink-0 text-neutral-500" />
+                <span className="flex-1">Logout</span>
+              </Command.Item>
+            </Command.Group>
+          </Command.List>
+
+          {/* Footer */}
+          <div className="flex items-center justify-between border-t border-neutral-800 px-4 py-2.5">
+            <div className="flex items-center gap-3 text-[11px] text-neutral-500">
+              <span className="flex items-center gap-1">
+                <kbd className="px-1.5 py-0.5 rounded bg-neutral-800 border border-neutral-700 font-mono">
+                  &uarr;&darr;
+                </kbd>
+                Navigate
+              </span>
+              <span className="flex items-center gap-1">
+                <kbd className="px-1.5 py-0.5 rounded bg-neutral-800 border border-neutral-700 font-mono">
+                  &crarr;
+                </kbd>
+                Select
+              </span>
+              <span className="flex items-center gap-1">
+                <kbd className="px-1.5 py-0.5 rounded bg-neutral-800 border border-neutral-700 font-mono">
+                  esc
+                </kbd>
+                Close
+              </span>
+            </div>
+          </div>
+        </Command>
+      </div>
+    </div>
+  );
+}
diff --git a/apps/web/src/components/demo-banner.tsx b/apps/web/src/components/demo-banner.tsx
new file mode 100644
index 0000000..35563af
--- /dev/null
+++ b/apps/web/src/components/demo-banner.tsx
@@ -0,0 +1,65 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import Link from "next/link";
+import { Beaker, ArrowRight, X } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+const DISMISS_KEY = "agentlens-demo-banner-dismissed";
+
+interface DemoBannerProps {
+  allTracesAreDemo: boolean;
+}
+
+export function DemoBanner({ allTracesAreDemo }: DemoBannerProps) {
+  const [dismissed, setDismissed] = useState(true);
+
+  useEffect(() => {
+    setDismissed(localStorage.getItem(DISMISS_KEY) === "true");
+  }, []);
+
+  if (dismissed || !allTracesAreDemo) return null;
+
+  function handleDismiss() {
+    setDismissed(true);
+    localStorage.setItem(DISMISS_KEY, "true");
+  }
+
+  return (
+    <div
+      className={cn(
+        "relative mb-6 rounded-xl border border-emerald-500/20 bg-emerald-500/5 p-4",
+        "flex items-center gap-4"
+      )}
+    >
+      <div className="flex items-center justify-center w-10 h-10 rounded-lg bg-emerald-500/10 border border-emerald-500/20 shrink-0">
+        <Beaker className="w-5 h-5 text-emerald-400" />
+      </div>
+
+      <div className="flex-1 min-w-0">
+        <p className="text-sm text-emerald-200 font-medium">
+          You are viewing sample data.
+        </p>
+        <p className="text-xs text-emerald-400/60 mt-0.5">
+          Connect your agent to start collecting real traces.
+        </p>
+      </div>
+
+      <Link
+        href="/docs/getting-started"
+        className="hidden sm:flex items-center gap-1.5 px-4 py-2 rounded-lg bg-emerald-500/10 border border-emerald-500/20 text-sm font-medium text-emerald-400 hover:bg-emerald-500/20 transition-colors shrink-0"
+      >
+        View Setup Guide
+        <ArrowRight className="w-3.5 h-3.5" />
+      </Link>
+
+      <button
+        onClick={handleDismiss}
+        aria-label="Dismiss demo banner"
+        className="p-1.5 rounded-lg text-emerald-400/40 hover:text-emerald-400/80 hover:bg-emerald-500/10 transition-colors shrink-0"
+      >
+        <X className="w-4 h-4" />
+      </button>
+    </div>
+  );
+}
diff --git a/apps/web/src/components/demo-seed-trigger.tsx b/apps/web/src/components/demo-seed-trigger.tsx
new file mode 100644
index 0000000..1cdf1cc
--- /dev/null
+++ b/apps/web/src/components/demo-seed-trigger.tsx
@@ -0,0 +1,43 @@
+"use client";
+
+import { useEffect, useState } from "react";
+
+interface DemoSeedTriggerProps {
+  hasTraces: boolean;
+  children: React.ReactNode;
+}
+
+export function DemoSeedTrigger({ hasTraces, children }: DemoSeedTriggerProps) {
+  const [seeding, setSeeding] = useState(false);
+
+  useEffect(() => {
+    if (hasTraces || seeding) return;
+
+    async function seedIfNeeded() {
+      setSeeding(true);
+      try {
+        const res = await fetch("/api/demo/seed", { method: "POST" });
+        if (res.ok) {
+          window.location.reload();
+        }
+      } catch {
+        // Seed failed, continue showing empty state
+      } finally {
+        setSeeding(false);
+      }
+    }
+
+    seedIfNeeded();
+  }, [hasTraces, seeding]);
+
+  if (!hasTraces && seeding) {
+    return (
+      <div className="flex flex-col items-center justify-center py-20 text-center">
+        <div className="w-10 h-10 rounded-xl border-2 border-emerald-500/30 border-t-emerald-500 animate-spin mb-4" />
+        <p className="text-sm text-neutral-400">Setting up your workspace with sample data...</p>
+      </div>
+    );
+  }
+
+  return <>{children}</>;
+}
diff --git a/apps/web/src/components/keyboard-shortcuts-help.tsx b/apps/web/src/components/keyboard-shortcuts-help.tsx
new file mode 100644
index 0000000..e65aaaf
--- /dev/null
+++ b/apps/web/src/components/keyboard-shortcuts-help.tsx
@@ -0,0 +1,113 @@
+"use client";
+
+import { useState, useEffect } from "react";
+import { X } from "lucide-react";
+
+const shortcuts = [
+  { keys: ["j"], description: "Move selection down" },
+  { keys: ["k"], description: "Move selection up" },
+  { keys: ["Enter"], description: "Open selected item" },
+  { keys: ["Escape"], description: "Clear selection / go back" },
+  { keys: ["g", "h"], description: "Go to Dashboard" },
+  { keys: ["g", "s"], description: "Go to Settings" },
+  { keys: ["g", "k"], description: "Go to API Keys" },
+  { keys: ["g", "d"], description: "Go to Decisions" },
+  { keys: ["Cmd", "K"], description: "Open command palette" },
+  { keys: ["?"], description: "Show this help" },
+];
+
+export function KeyboardShortcutsHelp() {
+  const [open, setOpen] = useState(false);
+
+  useEffect(() => {
+    function handleKeyDown(e: KeyboardEvent) {
+      const el = document.activeElement;
+      if (el) {
+        const tag = el.tagName.toLowerCase();
+        if (tag === "input" || tag === "textarea" || tag === "select") return;
+        if ((el as HTMLElement).isContentEditable) return;
+      }
+
+      if (e.key === "?" && !e.metaKey && !e.ctrlKey) {
+        e.preventDefault();
+        setOpen((prev) => !prev);
+      }
+
+      if (e.key === "Escape" && open) {
+        setOpen(false);
+      }
+    }
+
+    document.addEventListener("keydown", handleKeyDown);
+    return () => document.removeEventListener("keydown", handleKeyDown);
+  }, [open]);
+
+  if (!open) return null;
+
+  return (
+    <div className="fixed inset-0 z-[90]">
+      <div
+        className="absolute inset-0 bg-black/60 backdrop-blur-sm"
+        onClick={() => setOpen(false)}
+      />
+
+      <div className="absolute inset-0 flex items-center justify-center px-4">
+        <div className="w-full max-w-md rounded-xl border border-neutral-800 bg-neutral-900/95 backdrop-blur-xl shadow-2xl shadow-black/40 overflow-hidden">
+          <div className="flex items-center justify-between px-5 py-4 border-b border-neutral-800">
+            <h2 className="text-sm font-semibold text-neutral-100">
+              Keyboard Shortcuts
+            </h2>
+            <button
+              onClick={() => setOpen(false)}
+              aria-label="Close shortcuts help"
+              className="p-1.5 rounded-lg text-neutral-500 hover:text-neutral-300 hover:bg-neutral-800 transition-colors"
+            >
+              <X className="w-4 h-4" />
+            </button>
+          </div>
+
+          <div className="p-2 max-h-[60vh] overflow-y-auto">
+            {shortcuts.map((shortcut, i) => (
+              <div
+                key={i}
+                className="flex items-center justify-between px-3 py-2.5 rounded-lg hover:bg-neutral-800/50"
+              >
+                <span className="text-sm text-neutral-400">
+                  {shortcut.description}
+                </span>
+                <div className="flex items-center gap-1">
+                  {shortcut.keys.map((key, j) => (
+                    <span key={j}>
+                      {j > 0 && (
+                        <span className="text-neutral-600 text-xs mx-0.5">
+                          then
+                        </span>
+                      )}
+                      <kbd className="inline-flex items-center justify-center min-w-[24px] px-2 py-1 rounded bg-neutral-800 border border-neutral-700 text-xs font-mono text-neutral-300">
+                        {key}
+                      </kbd>
+                    </span>
+                  ))}
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+export function ShortcutsHint() {
+  return (
+    <div className="fixed bottom-4 right-4 z-30">
+      <span className="text-xs text-neutral-600 flex items-center gap-1.5">
+        Press
+        <kbd className="px-1.5 py-0.5 rounded bg-neutral-800 border border-neutral-700 text-[10px] font-mono text-neutral-500">
+          ?
+        </kbd>
+        for shortcuts
+      </span>
+    </div>
+  );
+}
diff --git a/apps/web/src/components/trace-list.tsx b/apps/web/src/components/trace-list.tsx
index 7b22699..1c30281 100644
--- a/apps/web/src/components/trace-list.tsx
+++ b/apps/web/src/components/trace-list.tsx
@@ -2,7 +2,7 @@
 
 import { useState, useEffect, useCallback } from "react";
 import Link from "next/link";
-import { useSearchParams } from "next/navigation";
+import { useRouter, useSearchParams } from "next/navigation";
 import {
   Search,
   Filter,
@@ -23,6 +23,7 @@ import {
   WifiOff,
 } from "lucide-react";
 import { cn, formatDuration, formatRelativeTime } from "@/lib/utils";
+import { useKeyboardNav } from "@/hooks/use-keyboard-nav";
 
 type TraceStatus = "RUNNING" | "COMPLETED" | "ERROR";
 
@@ -87,6 +88,7 @@ export function TraceList({
   initialTotalPages,
   initialPage,
 }: TraceListProps) {
+  const router = useRouter();
   const searchParams = useSearchParams();
   const [traces, setTraces] = useState<Trace[]>(initialTraces);
   const [total, setTotal] = useState(initialTotal);
@@ -283,6 +285,19 @@ export function TraceList({
     return matchesSearch && matchesStatus;
   });
 
+  const { selectedIndex } = useKeyboardNav({
+    itemCount: filteredTraces.length,
+    onSelect: useCallback(
+      (index: number) => {
+        const trace = filteredTraces[index];
+        if (trace) {
+          router.push(`/dashboard/traces/${trace.id}`);
+        }
+      },
+      [filteredTraces, router]
+    ),
+  });
+
   const filterChips: { value: FilterStatus; label: string }[] = [
     { value: "ALL", label: "All" },
     { value: "RUNNING", label: "Running" },
@@ -376,7 +391,9 @@ export function TraceList({
         <div className="flex flex-col sm:flex-row gap-4">
           <div className="relative flex-1">
             <Search className="absolute left-3 top-1/2 -translate-y-1/2 w-5 h-5 text-neutral-500" />
+            <label htmlFor="trace-search" className="sr-only">Search traces</label>
             <input
+              id="trace-search"
               type="text"
               placeholder="Search traces..."
               value={searchQuery}
@@ -422,8 +439,9 @@ export function TraceList({
           {showAdvancedFilters && (
             <div className="mt-4 grid grid-cols-1 sm:grid-cols-3 gap-4">
               <div className="space-y-2">
-                <label className="text-xs text-neutral-500 font-medium">Sort by</label>
+                <label htmlFor="sort-filter" className="text-xs text-neutral-500 font-medium">Sort by</label>
                 <select
+                  id="sort-filter"
                   value={sortFilter}
                   onChange={(e) => setSortFilter(e.target.value as SortOption)}
                   className="w-full bg-neutral-900 border border-neutral-700 rounded-lg px-3 py-2 text-sm text-neutral-100 focus:outline-none focus:ring-2 focus:ring-emerald-500/50 focus:border-emerald-500 transition-all"
@@ -437,8 +455,9 @@ export function TraceList({
               </div>
 
               <div className="space-y-2">
-                <label className="text-xs text-neutral-500 font-medium">Date from</label>
+                <label htmlFor="date-from" className="text-xs text-neutral-500 font-medium">Date from</label>
                 <input
+                  id="date-from"
                   type="date"
                   value={dateFrom}
                   onChange={(e) => setDateFrom(e.target.value)}
@@ -447,8 +466,9 @@ export function TraceList({
               </div>
 
               <div className="space-y-2">
-                <label className="text-xs text-neutral-500 font-medium">Date to</label>
+                <label htmlFor="date-to" className="text-xs text-neutral-500 font-medium">Date to</label>
                 <input
+                  id="date-to"
                   type="date"
                   value={dateTo}
                   onChange={(e) => setDateTo(e.target.value)}
@@ -457,8 +477,9 @@ export function TraceList({
               </div>
 
               <div className="sm:col-span-3 space-y-2">
-                <label className="text-xs text-neutral-500 font-medium">Tags (comma-separated)</label>
+                <label htmlFor="tags-filter" className="text-xs text-neutral-500 font-medium">Tags (comma-separated)</label>
                 <input
+                  id="tags-filter"
                   type="text"
                   placeholder="e.g., production, critical, api"
                   value={tagsFilter}
@@ -473,8 +494,13 @@ export function TraceList({
 
       {/* Trace List */}
       <div className="space-y-3">
-        {filteredTraces.map((trace) => (
-          <TraceCard key={trace.id} trace={trace} />
+        {filteredTraces.map((trace, index) => (
+          <TraceCard
+            key={trace.id}
+            trace={trace}
+            index={index}
+            isSelected={index === selectedIndex}
+          />
         ))}
       </div>
 
@@ -497,6 +523,7 @@ export function TraceList({
             <button
               disabled={currentPage <= 1}
               onClick={() => handlePageChange(Math.max(1, currentPage - 1))}
+              aria-label="Previous page"
               className="p-2 rounded-lg border border-neutral-800 text-neutral-400 hover:text-neutral-100 hover:border-neutral-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
             >
               <ChevronLeft className="w-5 h-5" />
@@ -504,6 +531,7 @@ export function TraceList({
             <button
               disabled={currentPage >= totalPages}
               onClick={() => handlePageChange(Math.min(totalPages, currentPage + 1))}
+              aria-label="Next page"
               className="p-2 rounded-lg border border-neutral-800 text-neutral-400 hover:text-neutral-100 hover:border-neutral-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
             >
               <ChevronRight className="w-5 h-5" />
@@ -515,13 +543,29 @@ export function TraceList({
   );
 }
 
-function TraceCard({ trace }: { trace: Trace }) {
+function TraceCard({
+  trace,
+  index,
+  isSelected,
+}: {
+  trace: Trace;
+  index: number;
+  isSelected: boolean;
+}) {
   const status = statusConfig[trace.status];
   const StatusIcon = status.icon;
 
   return (
     <Link href={`/dashboard/traces/${trace.id}`}>
-      <div className="group p-5 bg-neutral-900 border border-neutral-800 rounded-xl hover:border-emerald-500/30 hover:bg-neutral-800/50 transition-all duration-200 cursor-pointer">
+      <div
+        data-keyboard-index={index}
+        className={cn(
+          "group p-5 bg-neutral-900 border rounded-xl hover:border-emerald-500/30 hover:bg-neutral-800/50 transition-all duration-200 cursor-pointer",
+          isSelected
+            ? "border-emerald-500/40 bg-emerald-500/5 ring-1 ring-emerald-500/20"
+            : "border-neutral-800"
+        )}
+      >
         <div className="flex flex-col lg:flex-row lg:items-center gap-4">
           {/* Left: Name and Status */}
           <div className="flex-1 min-w-0">
diff --git a/apps/web/src/hooks/use-keyboard-nav.ts b/apps/web/src/hooks/use-keyboard-nav.ts
new file mode 100644
index 0000000..1335927
--- /dev/null
+++ b/apps/web/src/hooks/use-keyboard-nav.ts
@@ -0,0 +1,123 @@
+"use client";
+
+import { useState, useEffect, useCallback, useRef } from "react";
+import { useRouter } from "next/navigation";
+
+function isInputFocused(): boolean {
+  const el = document.activeElement;
+  if (!el) return false;
+  const tag = el.tagName.toLowerCase();
+  if (tag === "input" || tag === "textarea" || tag === "select") return true;
+  if ((el as HTMLElement).isContentEditable) return true;
+  return false;
+}
+
+interface UseKeyboardNavOptions {
+  itemCount: number;
+  onSelect: (index: number) => void;
+  enabled?: boolean;
+}
+
+export function useKeyboardNav({
+  itemCount,
+  onSelect,
+  enabled = true,
+}: UseKeyboardNavOptions) {
+  const [selectedIndex, setSelectedIndex] = useState(-1);
+  const router = useRouter();
+  const gPressedRef = useRef(false);
+  const gTimerRef = useRef<ReturnType<typeof setTimeout>>(undefined);
+
+  const resetSelection = useCallback(() => {
+    setSelectedIndex(-1);
+  }, []);
+
+  useEffect(() => {
+    if (!enabled) return;
+
+    function handleKeyDown(e: KeyboardEvent) {
+      if (isInputFocused()) return;
+
+      if (gPressedRef.current) {
+        gPressedRef.current = false;
+        clearTimeout(gTimerRef.current);
+
+        if (e.key === "h") {
+          e.preventDefault();
+          router.push("/dashboard");
+          return;
+        }
+        if (e.key === "s") {
+          e.preventDefault();
+          router.push("/dashboard/settings");
+          return;
+        }
+        if (e.key === "k") {
+          e.preventDefault();
+          router.push("/dashboard/keys");
+          return;
+        }
+        if (e.key === "d") {
+          e.preventDefault();
+          router.push("/dashboard/decisions");
+          return;
+        }
+        return;
+      }
+
+      if (e.key === "g" && !e.metaKey && !e.ctrlKey && !e.altKey) {
+        gPressedRef.current = true;
+        gTimerRef.current = setTimeout(() => {
+          gPressedRef.current = false;
+        }, 500);
+        return;
+      }
+
+      if (e.key === "j" && !e.metaKey && !e.ctrlKey) {
+        e.preventDefault();
+        setSelectedIndex((prev) => {
+          const next = prev + 1;
+          return next >= itemCount ? itemCount - 1 : next;
+        });
+        return;
+      }
+
+      if (e.key === "k" && !e.metaKey && !e.ctrlKey) {
+        e.preventDefault();
+        setSelectedIndex((prev) => {
+          const next = prev - 1;
+          return next < 0 ? 0 : next;
+        });
+        return;
+      }
+
+      if (e.key === "Enter" && selectedIndex >= 0) {
+        e.preventDefault();
+        onSelect(selectedIndex);
+        return;
+      }
+
+      if (e.key === "Escape") {
+        setSelectedIndex(-1);
+        return;
+      }
+    }
+
+    document.addEventListener("keydown", handleKeyDown);
+    return () => {
+      document.removeEventListener("keydown", handleKeyDown);
+      clearTimeout(gTimerRef.current);
+    };
+  }, [enabled, itemCount, selectedIndex, onSelect, router]);
+
+  useEffect(() => {
+    if (selectedIndex < 0) return;
+
+    const row = document.querySelector(`[data-keyboard-index="${selectedIndex}"]`);
+    if (row) {
+      row.scrollIntoView({ block: "nearest", behavior: "smooth" });
+    }
+  }, [selectedIndex]);
+
+  return { selectedIndex, setSelectedIndex, resetSelection };
+}
diff --git a/apps/web/src/lib/demo-data.ts b/apps/web/src/lib/demo-data.ts
new file mode 100644
index 0000000..ab5ae22
--- /dev/null
+++ b/apps/web/src/lib/demo-data.ts
@@ -0,0 +1,554 @@
+import { prisma } from "@/lib/prisma";
+import type { Prisma, SpanType } from "@agentlens/database";
+
+type EventCreate = Prisma.EventCreateWithoutTraceInput;
+type DecisionCreate = Prisma.DecisionPointCreateWithoutTraceInput;
+
+interface DemoSpan {
+  id: string;
+  name: string;
+  type: SpanType;
+  status: "RUNNING" | "COMPLETED" | "ERROR";
+  parentSpanId?: string;
+  input?: Prisma.InputJsonValue;
+  output?: Prisma.InputJsonValue;
+  tokenCount?: number;
+  costUsd?: number;
+  durationMs?: number;
+  startedAt: Date;
+  endedAt?: Date;
+  metadata?: Prisma.InputJsonValue;
+  statusMessage?: string;
+}
+
+function daysAgo(days: number, offsetMs = 0): Date {
+  const d = new Date();
+  d.setDate(d.getDate() - days);
+  d.setMilliseconds(d.getMilliseconds() + offsetMs);
+  return d;
+}
+
+function endDate(start: Date, durationMs: number): Date {
+  return new Date(start.getTime() + durationMs);
+}
+
+export async function seedDemoData(userId: string) {
+  const traces = [
+    createSimpleChatTrace(userId),
+    createMultiToolAgentTrace(userId),
+    createRagPipelineTrace(userId),
+    createErrorHandlingTrace(userId),
+    createLongRunningWorkflowTrace(userId),
+    createCodeAnalysisTrace(userId),
+    createWebSearchTrace(userId),
+  ];
+
+  for (const traceFn of traces) {
+    const { trace, spans, events, decisions } = traceFn;
+
+    await prisma.trace.create({
+      data: {
+        ...trace,
+        spans: { create: spans },
+        events: { create: events },
+        decisionPoints: { create: decisions },
+      },
+    });
+  }
+
+  await prisma.user.update({
+    where: { id: userId },
+    data: { demoSeeded: true },
+  });
+}
+
+function createSimpleChatTrace(userId: string) {
+  const start = daysAgo(1);
+  const duration = 1240;
+  const spanId = `demo-span-chat-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "Simple Chat Completion",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["openai", "chat"],
+      metadata: { model: "gpt-4o", temperature: 0.7 },
+      totalCost: 0.0032,
+      totalTokens: 245,
+      totalDuration: duration,
+      startedAt: start,
+      endedAt: endDate(start, duration),
+    },
+    spans: [
+      {
+        id: spanId,
+        name: "chat.completions.create",
+        type: "LLM_CALL" as const,
+        status: "COMPLETED" as const,
+        input: { messages: [{ role: "user", content: "Explain quantum computing in simple terms" }] },
+        output: { content: "Quantum computing uses quantum bits (qubits) that can exist in multiple states simultaneously..." },
+        tokenCount: 245,
+        costUsd: 0.0032,
+        durationMs: duration,
+        startedAt: start,
+        endedAt: endDate(start, duration),
+        metadata: { model: "gpt-4o", provider: "openai" },
+      },
+    ],
+    events: [] as EventCreate[],
+    decisions: [] as DecisionCreate[],
+  };
+}
+
+function createMultiToolAgentTrace(userId: string) {
+  const start = daysAgo(2);
+  const parentId = `demo-span-agent-${userId.slice(0, 8)}`;
+  const toolIds = [
+    `demo-span-tool1-${userId.slice(0, 8)}`,
+    `demo-span-tool2-${userId.slice(0, 8)}`,
+    `demo-span-tool3-${userId.slice(0, 8)}`,
+  ];
+  const llmId = `demo-span-llm-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "Multi-Tool Agent Run",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["agent", "tools", "production"],
+      metadata: { agent: "research-assistant", run_id: "demo-run-001" },
+      totalCost: 0.0187,
+      totalTokens: 1823,
+      totalDuration: 8420,
+      startedAt: start,
+      endedAt: endDate(start, 8420),
+    },
+    spans: [
+      {
+        id: parentId,
+        name: "research-assistant",
+        type: "AGENT" as const,
+        status: "COMPLETED" as const,
+        durationMs: 8420,
+        startedAt: start,
+        endedAt: endDate(start, 8420),
+        metadata: { max_iterations: 5 },
+      },
+      {
+        id: toolIds[0],
+        name: "web_search",
+        type: "TOOL_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: parentId,
+        input: { query: "latest AI research papers 2026" },
+        output: { results: [{ title: "Scaling Laws for Neural Language Models", url: "https://arxiv.org/..." }] },
+        durationMs: 2100,
+        startedAt: endDate(start, 200),
+        endedAt: endDate(start, 2300),
+      },
+      {
+        id: toolIds[1],
+        name: "document_reader",
+        type: "TOOL_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: parentId,
+        input: { url: "https://arxiv.org/..." },
+        output: { content: "Abstract: We study empirical scaling laws for language model performance..." },
+        durationMs: 1800,
+        startedAt: endDate(start, 2400),
+        endedAt: endDate(start, 4200),
+      },
+      {
+        id: toolIds[2],
+        name: "summarizer",
+        type: "TOOL_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: parentId,
+        input: { text: "Abstract: We study empirical scaling laws..." },
+        output: { summary: "The paper examines how language model performance scales with compute, data, and model size." },
+        durationMs: 1500,
+        startedAt: endDate(start, 4300),
+        endedAt: endDate(start, 5800),
+      },
+      {
+        id: llmId,
+        name: "gpt-4o-synthesis",
+        type: "LLM_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: parentId,
+        input: { messages: [{ role: "system", content: "Synthesize research findings" }] },
+        output: { content: "Based on the latest research, AI scaling laws suggest..." },
+        tokenCount: 1823,
+        costUsd: 0.0187,
+        durationMs: 2400,
+        startedAt: endDate(start, 5900),
+        endedAt: endDate(start, 8300),
+        metadata: { model: "gpt-4o" },
+      },
+    ],
+    events: [] as EventCreate[],
+    decisions: [
+      {
+        type: "TOOL_SELECTION" as const,
+        reasoning: "User asked about latest AI research, need web search to get current information",
+        chosen: { tool: "web_search", args: { query: "latest AI research papers 2026" } },
+        alternatives: [{ tool: "memory_lookup" }, { tool: "knowledge_base" }],
+        parentSpanId: parentId,
+        durationMs: 150,
+        costUsd: 0.001,
+        timestamp: endDate(start, 100),
+      },
+      {
+        type: "ROUTING" as const,
+        reasoning: "Search results contain arxiv links, routing to document reader for full content",
+        chosen: { next_step: "document_reader" },
+        alternatives: [{ next_step: "direct_response" }, { next_step: "ask_clarification" }],
+        parentSpanId: parentId,
+        durationMs: 80,
+        costUsd: 0.0005,
+        timestamp: endDate(start, 2350),
+      },
+    ],
+  };
+}
+
+function createRagPipelineTrace(userId: string) {
+  const start = daysAgo(3);
+  const retrievalId = `demo-span-retrieval-${userId.slice(0, 8)}`;
+  const embeddingId = `demo-span-embed-${userId.slice(0, 8)}`;
+  const genId = `demo-span-gen-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "RAG Pipeline",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["rag", "retrieval", "embeddings"],
+      metadata: { pipeline: "knowledge-qa", version: "2.1" },
+      totalCost: 0.0091,
+      totalTokens: 892,
+      totalDuration: 4350,
+      startedAt: start,
+      endedAt: endDate(start, 4350),
+    },
+    spans: [
+      {
+        id: embeddingId,
+        name: "embed_query",
+        type: "LLM_CALL" as const,
+        status: "COMPLETED" as const,
+        input: { text: "How does our refund policy work?" },
+        output: { embedding: [0.023, -0.041, 0.089] },
+        tokenCount: 12,
+        costUsd: 0.00001,
+        durationMs: 320,
+        startedAt: start,
+        endedAt: endDate(start, 320),
+        metadata: { model: "text-embedding-3-small" },
+      },
+      {
+        id: retrievalId,
+        name: "vector_search",
+        type: "MEMORY_OP" as const,
+        status: "COMPLETED" as const,
+        input: { embedding: [0.023, -0.041, 0.089], top_k: 5 },
+        output: { documents: [{ id: "doc-1", score: 0.92, title: "Refund Policy v3" }] },
+        durationMs: 180,
+        startedAt: endDate(start, 400),
+        endedAt: endDate(start, 580),
+        metadata: { index: "company-docs", results_count: 5 },
+      },
+      {
+        id: genId,
+        name: "generate_answer",
+        type: "LLM_CALL" as const,
+        status: "COMPLETED" as const,
+        input: { messages: [{ role: "system", content: "Answer using the provided context" }] },
+        output: { content: "Our refund policy allows returns within 30 days of purchase..." },
+        tokenCount: 880,
+        costUsd: 0.009,
+        durationMs: 3600,
+        startedAt: endDate(start, 650),
+        endedAt: endDate(start, 4250),
+        metadata: { model: "gpt-4o-mini" },
+      },
+    ],
+    events: [] as EventCreate[],
+    decisions: [
+      {
+        type: "MEMORY_RETRIEVAL" as const,
+        reasoning: "Query about refund policy matched knowledge base with high confidence",
+        chosen: { source: "vector_search", confidence: 0.92 },
+        alternatives: [{ source: "web_search" }, { source: "ask_human" }],
+        durationMs: 50,
+        timestamp: endDate(start, 350),
+      },
+    ],
+  };
+}
+
+function createErrorHandlingTrace(userId: string) {
+  const start = daysAgo(5);
+  const spanId = `demo-span-err-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "Error Handling Example",
+      userId,
+      status: "ERROR" as const,
+      isDemo: true,
+      tags: ["error", "rate-limit"],
+      metadata: { error_type: "RateLimitError", retries: 3 },
+      totalCost: 0.0,
+      totalTokens: 0,
+      totalDuration: 15200,
+      startedAt: start,
+      endedAt: endDate(start, 15200),
+    },
+    spans: [
+      {
+        id: spanId,
+        name: "chat.completions.create",
+        type: "LLM_CALL" as const,
+        status: "ERROR" as const,
+        statusMessage: "RateLimitError: Rate limit exceeded. Retry after 30s.",
+        input: { messages: [{ role: "user", content: "Analyze this dataset" }] },
+        durationMs: 15200,
+        startedAt: start,
+        endedAt: endDate(start, 15200),
+        metadata: { model: "gpt-4o", retry_count: 3 },
+      },
+    ],
+    events: [
+      {
+        type: "ERROR" as const,
+        name: "RateLimitError",
+        spanId,
+        metadata: { message: "Rate limit exceeded", status_code: 429 },
+        timestamp: endDate(start, 5000),
+      },
+      {
+        type: "RETRY" as const,
+        name: "Retry attempt 1",
+        spanId,
+        metadata: { attempt: 1, backoff_ms: 2000 },
+        timestamp: endDate(start, 7000),
+      },
+      {
+        type: "RETRY" as const,
+        name: "Retry attempt 2",
+        spanId,
+        metadata: { attempt: 2, backoff_ms: 4000 },
+        timestamp: endDate(start, 11000),
+      },
+      {
+        type: "ERROR" as const,
+        name: "Max retries exceeded",
+        spanId,
+        metadata: { message: "Giving up after 3 retries", final_status: 429 },
+        timestamp: endDate(start, 15200),
+      },
+    ],
+    decisions: [
+      {
+        type: "RETRY" as const,
+        reasoning: "Received 429 rate limit error, exponential backoff strategy selected",
+        chosen: { action: "retry", strategy: "exponential_backoff", max_retries: 3 },
+        alternatives: [{ action: "fail_immediately" }, { action: "switch_model" }],
+        durationMs: 20,
+        timestamp: endDate(start, 5100),
+      },
+    ],
+  };
+}
+
+function createLongRunningWorkflowTrace(userId: string) {
+  const start = daysAgo(6);
+  const totalDuration = 34500;
+  const chainId = `demo-span-chain-${userId.slice(0, 8)}`;
+  const spanPrefix = `demo-span-wf-${userId.slice(0, 8)}`;
+
+  const stepNames = [
+    "data_ingestion",
+    "preprocessing",
+    "feature_extraction",
+    "model_inference",
+    "post_processing",
+    "validation",
+    "output_formatting",
+  ];
+
+  const spans: DemoSpan[] = [
+    {
+      id: chainId,
+      name: "data-processing-pipeline",
+      type: "CHAIN",
+      status: "COMPLETED",
+      durationMs: totalDuration,
+      startedAt: start,
+      endedAt: endDate(start, totalDuration),
+      metadata: { pipeline: "batch-analysis", version: "1.4" },
+    },
+  ];
+
+  let elapsed = 200;
+  for (let i = 0; i < stepNames.length; i++) {
+    const stepDuration = 2000 + Math.floor(Math.random() * 5000);
+    spans.push({
+      id: `${spanPrefix}-${i}`,
+      name: stepNames[i],
+      type: i === 3 ? "LLM_CALL" : "CUSTOM",
+      status: "COMPLETED",
+      durationMs: stepDuration,
+      startedAt: endDate(start, elapsed),
+      endedAt: endDate(start, elapsed + stepDuration),
+      metadata: { step: i + 1, total_steps: stepNames.length },
+    });
+    elapsed += stepDuration + 100;
+  }
+
+  return {
+    trace: {
+      name: "Long-Running Workflow",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["pipeline", "batch", "production"],
+      metadata: { pipeline: "batch-analysis", records_processed: 1250 },
+      totalCost: 0.042,
+      totalTokens: 4200,
+      totalDuration: totalDuration,
+      startedAt: start,
+      endedAt: endDate(start, totalDuration),
+    },
+    spans: spans.map((s) => ({
+      ...s,
+      parentSpanId: s.id === chainId ? undefined : chainId,
+    })),
+    events: [] as EventCreate[],
+    decisions: [
+      {
+        type: "PLANNING" as const,
+        reasoning: "Large dataset detected, selecting batch processing strategy with parallel feature extraction",
+        chosen: { strategy: "batch_parallel", batch_size: 50 },
+        alternatives: [{ strategy: "sequential" }, { strategy: "streaming" }],
+        parentSpanId: chainId,
+        durationMs: 100,
+        timestamp: endDate(start, 100),
+      },
+    ],
+  };
+}
+
+function createCodeAnalysisTrace(userId: string) {
+  const start = daysAgo(4);
+  const agentId = `demo-span-codeagent-${userId.slice(0, 8)}`;
+  const readId = `demo-span-read-${userId.slice(0, 8)}`;
+  const analyzeId = `demo-span-analyze-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "Code Review Agent",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["code-review", "agent"],
+      metadata: { repo: "acme/backend", pr_number: 142 },
+      totalCost: 0.015,
+      totalTokens: 1450,
+      totalDuration: 6200,
+      startedAt: start,
+      endedAt: endDate(start, 6200),
+    },
+    spans: [
+      {
+        id: agentId,
+        name: "code-review-agent",
+        type: "AGENT" as const,
+        status: "COMPLETED" as const,
+        durationMs: 6200,
+        startedAt: start,
+        endedAt: endDate(start, 6200),
+      },
+      {
+        id: readId,
+        name: "read_diff",
+        type: "TOOL_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: agentId,
+        input: { pr_number: 142 },
+        output: { files_changed: 5, additions: 120, deletions: 30 },
+        durationMs: 800,
+        startedAt: endDate(start, 100),
+        endedAt: endDate(start, 900),
+      },
+      {
+        id: analyzeId,
+        name: "analyze_code",
+        type: "LLM_CALL" as const,
+        status: "COMPLETED" as const,
+        parentSpanId: agentId,
+        input: { diff: "...", instructions: "Review for bugs and style issues" },
+        output: { review: "Found 2 potential issues: 1) Missing null check on line 45, 2) Unused import" },
+        tokenCount: 1450,
+        costUsd: 0.015,
+        durationMs: 5100,
+        startedAt: endDate(start, 1000),
+        endedAt: endDate(start, 6100),
+        metadata: { model: "gpt-4o" },
+      },
+    ],
+    events: [] as EventCreate[],
+    decisions: [
+      {
+        type: "TOOL_SELECTION" as const,
+        reasoning: "Need to read PR diff before analyzing code",
+        chosen: { tool: "read_diff", args: { pr_number: 142 } },
+        alternatives: [{ tool: "read_file" }, { tool: "list_files" }],
+        parentSpanId: agentId,
+        durationMs: 60,
+        timestamp: endDate(start, 50),
+      },
+    ],
+  };
+}
+
+function createWebSearchTrace(userId: string) {
+  const start = daysAgo(0, -3600000);
+  const searchId = `demo-span-websearch-${userId.slice(0, 8)}`;
+
+  return {
+    trace: {
+      name: "Web Search Agent",
+      userId,
+      status: "COMPLETED" as const,
+      isDemo: true,
+      tags: ["search", "web"],
+      metadata: { query: "AgentLens observability" },
+      totalCost: 0.002,
+      totalTokens: 180,
+      totalDuration: 2800,
+      startedAt: start,
+      endedAt: endDate(start, 2800),
+    },
+    spans: [
+      {
+        id: searchId,
+        name: "web_search",
+        type: "TOOL_CALL" as const,
+        status: "COMPLETED" as const,
+        input: { query: "AgentLens observability platform" },
+        output: { results_count: 10, top_result: "https://agentlens.vectry.tech" },
+        durationMs: 2800,
+        startedAt: start,
+        endedAt: endDate(start, 2800),
+      },
+    ],
+    events: [] as EventCreate[],
+    decisions: [] as DecisionCreate[],
+  };
+}
diff --git a/package-lock.json b/package-lock.json
index c07e43f..01f7f09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,6 +26,7 @@
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         "bcryptjs": "^3.0.3",
         "clsx": "^2.1.1",
+        "cmdk": "^1.1.1",
         "ioredis": "^5.9.2",
         "lucide-react": "^0.469.0",
         "next": "^15.1.0",
@@ -1345,6 +1346,447 @@
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       }
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       "version": "4.57.1",
       "resolved": "https://registry.npmjs.org/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.57.1.tgz",
@@ -2171,7 +2613,7 @@
       "version": "19.2.3",
       "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
       "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "peerDependencies": {
         "@types/react": "^19.2.0"
@@ -2245,6 +2687,18 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/aria-hidden": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmjs.org/aria-hidden/-/aria-hidden-1.2.6.tgz",
+      "integrity": "sha512-ik3ZgC9dY/lYVVM++OISsaYDeg1tb0VtP5uL3ouh1koGOaUMDPpbFIei4JkFimWUFPn90sbMNMXQAIVOlnYKJA==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/bcryptjs": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-3.0.3.tgz",
@@ -2415,6 +2869,22 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/cmdk": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cmdk/-/cmdk-1.1.1.tgz",
+      "integrity": "sha512-Vsv7kFaXm+ptHDMZ7izaRsP70GgrW9NBNGswt9OZaVBLlE0SNpDq8eu/VGXyF9r7M0azK3Wy7OlYXsuyYLFzHg==",
+      "license": "MIT",
+      "dependencies": {
+        "@radix-ui/react-compose-refs": "^1.1.1",
+        "@radix-ui/react-dialog": "^1.1.6",
+        "@radix-ui/react-id": "^1.1.0",
+        "@radix-ui/react-primitive": "^2.0.2"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19 || ^19.0.0-rc",
+        "react-dom": "^18 || ^19 || ^19.0.0-rc"
+      }
+    },
     "node_modules/comma-separated-tokens": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/comma-separated-tokens/-/comma-separated-tokens-2.0.3.tgz",
@@ -2633,6 +3103,12 @@
         "node": ">=8"
       }
     },
+    "node_modules/detect-node-es": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/detect-node-es/-/detect-node-es-1.1.0.tgz",
+      "integrity": "sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==",
+      "license": "MIT"
+    },
     "node_modules/devlop": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/devlop/-/devlop-1.1.0.tgz",
@@ -2811,6 +3287,15 @@
         "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
       }
     },
+    "node_modules/get-nonce": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/get-nonce/-/get-nonce-1.0.1.tgz",
+      "integrity": "sha512-FJhYRoDaiatfEkUK8HKlicmu/3SGFD51q3itKDGoSTysQJBnfOcxU5GxnhE1E6soB76MbT0MBtnKJuXyAx+96Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/giget": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/giget/-/giget-2.0.0.tgz",
@@ -3861,6 +4346,75 @@
         "react": "^19.2.4"
       }
     },
+    "node_modules/react-remove-scroll": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll/-/react-remove-scroll-2.7.2.tgz",
+      "integrity": "sha512-Iqb9NjCCTt6Hf+vOdNIZGdTiH1QSqr27H/Ek9sv/a97gfueI/5h1s3yRi1nngzMUaOOToin5dI1dXKdXiF+u0Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-remove-scroll-bar": "^2.3.7",
+        "react-style-singleton": "^2.2.3",
+        "tslib": "^2.1.0",
+        "use-callback-ref": "^1.3.3",
+        "use-sidecar": "^1.1.3"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-remove-scroll-bar": {
+      "version": "2.3.8",
+      "resolved": "https://registry.npmjs.org/react-remove-scroll-bar/-/react-remove-scroll-bar-2.3.8.tgz",
+      "integrity": "sha512-9r+yi9+mgU33AKcj6IbT9oRCO78WriSj6t/cF8DWBZJ9aOGPOTEDvdUDz1FwKim7QXWwmHqtdHnRJfhAxEG46Q==",
+      "license": "MIT",
+      "dependencies": {
+        "react-style-singleton": "^2.2.2",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-style-singleton": {
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/react-style-singleton/-/react-style-singleton-2.2.3.tgz",
+      "integrity": "sha512-b6jSvxvVnyptAiLjbkWLE/lOnR4lfTtDAl+eUC7RZy+QQWc6wRzIV2CE6xBuMmDxc2qIihtDCZD5NPOFl7fRBQ==",
+      "license": "MIT",
+      "dependencies": {
+        "get-nonce": "^1.0.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/readdirp": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.1.2.tgz",
@@ -4479,6 +5033,49 @@
         "url": "https://opencollective.com/unified"
       }
     },
+    "node_modules/use-callback-ref": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/use-callback-ref/-/use-callback-ref-1.3.3.tgz",
+      "integrity": "sha512-jQL3lRnocaFtu3V00JToYz/4QkNWswxijDaCVNZRiRTO3HQDLsdu1ZtmIUvV4yPp+rvWm5j0y0TG/S61cuijTg==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/use-sidecar": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/use-sidecar/-/use-sidecar-1.1.3.tgz",
+      "integrity": "sha512-Fedw0aZvkhynoPYlA5WXrMCAMm+nSWdZt6lzJQ7Ok8S6Q+VsHmHpRWndVRJ8Be0ZbkfPc5LRYH+5XrzXcEeLRQ==",
+      "license": "MIT",
+      "dependencies": {
+        "detect-node-es": "^1.1.0",
+        "tslib": "^2.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "peerDependencies": {
+        "@types/react": "*",
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/use-sync-external-store": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
diff --git a/packages/database/prisma/schema.prisma b/packages/database/prisma/schema.prisma
index 1bc965a..581b9f7 100644
--- a/packages/database/prisma/schema.prisma
+++ b/packages/database/prisma/schema.prisma
@@ -15,6 +15,7 @@ model User {
   passwordHash  String
   name          String?
   emailVerified Boolean  @default(false)
+  demoSeeded    Boolean  @default(false)
 
   createdAt     DateTime @default(now())
   updatedAt     DateTime @updatedAt
@@ -124,7 +125,8 @@ model Trace {
   tags        String[] @default([])
   metadata    Json?
 
-  // Owner — nullable for backward compat with existing unowned traces
+  isDemo      Boolean  @default(false)
+
   userId      String?
   user        User?    @relation(fields: [userId], references: [id], onDelete: SetNull)