diff --git a/mobile/src/lib/platform.ts b/mobile/src/lib/platform.ts
index 076c3ac..b28e368 100644
--- a/mobile/src/lib/platform.ts
+++ b/mobile/src/lib/platform.ts
@@ -28,6 +28,11 @@ export const featureFlagClient = createFeatureFlagClient({
   productId: PRODUCT_ID,
   platform: 'mobile',
   pollIntervalMs: 5 * 60 * 1000,
+  getAccessToken,
+  storage: {
+    getItem: (key: string) => mmkvStorage.getItem(key),
+    setItem: (key: string, value: string) => mmkvStorage.setItem(key, value),
+  },
 });
 
 export const killSwitchClient = createKillSwitchClient({
@@ -75,6 +80,13 @@ export function isFeatureEnabled(key: string): boolean {
   return featureFlagClient.isEnabled(key);
 }
 
+export function getFeatureValue<T = boolean | string | number | Record<string, unknown>>(
+  key: string,
+  defaultValue: T,
+): T {
+  return featureFlagClient.getValue(key, defaultValue);
+}
+
 export async function checkKillSwitch(): Promise<{ disabled: boolean; message: string | null }> {
   return killSwitchClient.check();
 }
diff --git a/web/src/components/Sidebar.tsx b/web/src/components/Sidebar.tsx
index fea58e4..472e87f 100644
--- a/web/src/components/Sidebar.tsx
+++ b/web/src/components/Sidebar.tsx
@@ -4,11 +4,12 @@ import Link from "next/link";
 import { usePathname } from "next/navigation";
 import { House, Search, Settings, Sparkles, FolderKanban, ShieldCheck } from "lucide-react";
 import { PRODUCT_NAME } from "@/lib/product-config";
+import { isFeatureEnabled } from "@/lib/feature-flags";
 
-const navItems = [
+const navItems: { href: string; label: string; icon: typeof House; flag?: string }[] = [
   { href: "/dashboard", label: "Dashboard", icon: House },
   { href: "/workspaces", label: "Workspaces", icon: FolderKanban },
-  { href: "/reviews", label: "Reviews", icon: ShieldCheck },
+  { href: "/reviews", label: "Reviews", icon: ShieldCheck, flag: "mcp_tools_enabled" },
   { href: "/search", label: "Search", icon: Search },
   { href: "/settings", label: "Settings", icon: Settings },
 ];
@@ -33,7 +34,7 @@ export function Sidebar() {
         </div>
 
         <nav aria-label="Primary navigation" style={{ display: "grid", gap: "var(--nl-space-2)" }}>
-          {navItems.map((item) => {
+          {navItems.filter((item) => !item.flag || isFeatureEnabled(item.flag)).map((item) => {
             const Icon = item.icon;
             const active = pathname === item.href || pathname.startsWith(`${item.href}/`);
             return (