Upload folder using huggingface_hub

.gitignore

@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

README.md

@@ -1,10 +1,25 @@
----
-title: Ui Stater
-emoji: 🏢
-colorFrom: yellow
-colorTo: purple
-sdk: docker
-pinned: false
----
-
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+This is the [assistant-ui](https://github.com/Yonom/assistant-ui) starter project.
+
+## Getting Started
+
+First, add your OpenAI API key to `.env.local` file:
+
+```
+OPENAI_API_KEY=sk-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+```
+
+Then, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+# or
+pnpm dev
+# or
+bun dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.

app/api/chat/route.ts

@@ -0,0 +1,21 @@
+import { openai } from "@ai-sdk/openai";
+import { streamText, convertToModelMessages, type UIMessage } from "ai";
+
+export async function POST(req: Request) {
+  const { messages }: { messages: UIMessage[] } = await req.json();
+
+  const result = streamText({
+    model: openai.responses("gpt-5-nano"),
+    messages: convertToModelMessages(messages),
+    providerOptions: {
+      openai: {
+        reasoningEffort: "low",
+        reasoningSummary: "auto",
+      },
+    },
+  });
+
+  return result.toUIMessageStreamResponse({
+    sendReasoning: true,
+  });
+}

app/assistant.tsx

@@ -0,0 +1,67 @@
+"use client";
+
+import { AssistantRuntimeProvider } from "@assistant-ui/react";
+import {
+  useChatRuntime,
+  AssistantChatTransport,
+} from "@assistant-ui/react-ai-sdk";
+import { Thread } from "@/components/assistant-ui/thread";
+import {
+  SidebarInset,
+  SidebarProvider,
+  SidebarTrigger,
+} from "@/components/ui/sidebar";
+import { ThreadListSidebar } from "@/components/assistant-ui/threadlist-sidebar";
+import { Separator } from "@/components/ui/separator";
+import {
+  Breadcrumb,
+  BreadcrumbItem,
+  BreadcrumbLink,
+  BreadcrumbList,
+  BreadcrumbPage,
+  BreadcrumbSeparator,
+} from "@/components/ui/breadcrumb";
+
+export const Assistant = () => {
+  const runtime = useChatRuntime({
+    transport: new AssistantChatTransport({
+      api: "/api/chat",
+    }),
+  });
+
+  return (
+    <AssistantRuntimeProvider runtime={runtime}>
+      <SidebarProvider>
+        <div className="flex h-dvh w-full pr-0.5">
+          <ThreadListSidebar />
+          <SidebarInset>
+            <header className="flex h-16 shrink-0 items-center gap-2 border-b px-4">
+              <SidebarTrigger />
+              <Separator orientation="vertical" className="mr-2 h-4" />
+              <Breadcrumb>
+                <BreadcrumbList>
+                  <BreadcrumbItem className="hidden md:block">
+                    <BreadcrumbLink
+                      href="https://www.assistant-ui.com/docs/getting-started"
+                      target="_blank"
+                      rel="noopener noreferrer"
+                    >
+                      Build Your Own ChatGPT UX
+                    </BreadcrumbLink>
+                  </BreadcrumbItem>
+                  <BreadcrumbSeparator className="hidden md:block" />
+                  <BreadcrumbItem>
+                    <BreadcrumbPage>Starter Template</BreadcrumbPage>
+                  </BreadcrumbItem>
+                </BreadcrumbList>
+              </Breadcrumb>
+            </header>
+            <div className="flex-1 overflow-hidden">
+              <Thread />
+            </div>
+          </SidebarInset>
+        </div>
+      </SidebarProvider>
+    </AssistantRuntimeProvider>
+  );
+};

app/globals.css

@@ -0,0 +1,141 @@
+@import "tailwindcss";
+@import "tw-animate-css";
+
+@custom-variant dark (&:is(.dark *));
+
+@theme inline {
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --font-sans: var(--font-geist-sans);
+  --font-mono: var(--font-geist-mono);
+  --color-sidebar-ring: var(--sidebar-ring);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar: var(--sidebar);
+  --color-chart-5: var(--chart-5);
+  --color-chart-4: var(--chart-4);
+  --color-chart-3: var(--chart-3);
+  --color-chart-2: var(--chart-2);
+  --color-chart-1: var(--chart-1);
+  --color-ring: var(--ring);
+  --color-input: var(--input);
+  --color-border: var(--border);
+  --color-destructive: var(--destructive);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-accent: var(--accent);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-muted: var(--muted);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-secondary: var(--secondary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-primary: var(--primary);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-popover: var(--popover);
+  --color-card-foreground: var(--card-foreground);
+  --color-card: var(--card);
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --animate-shimmer: shimmer-sweep var(--shimmer-duration, 1000ms) linear
+    infinite both;
+  @keyframes shimmer-sweep {
+    from {
+      background-position: 150% 0;
+    }
+    to {
+      background-position: -100% 0;
+    }
+  }
+}
+
+:root {
+  --radius: 0.625rem;
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.141 0.005 285.823);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.141 0.005 285.823);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.141 0.005 285.823);
+  --primary: oklch(0.21 0.006 285.885);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.967 0.001 286.375);
+  --secondary-foreground: oklch(0.21 0.006 285.885);
+  --muted: oklch(0.967 0.001 286.375);
+  --muted-foreground: oklch(0.552 0.016 285.938);
+  --accent: oklch(0.967 0.001 286.375);
+  --accent-foreground: oklch(0.21 0.006 285.885);
+  --destructive: oklch(0.577 0.245 27.325);
+  --border: oklch(0.92 0.004 286.32);
+  --input: oklch(0.92 0.004 286.32);
+  --ring: oklch(0.705 0.015 286.067);
+  --chart-1: oklch(0.646 0.222 41.116);
+  --chart-2: oklch(0.6 0.118 184.704);
+  --chart-3: oklch(0.398 0.07 227.392);
+  --chart-4: oklch(0.828 0.189 84.429);
+  --chart-5: oklch(0.769 0.188 70.08);
+  --sidebar: oklch(0.985 0 0);
+  --sidebar-foreground: oklch(0.141 0.005 285.823);
+  --sidebar-primary: oklch(0.21 0.006 285.885);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.967 0.001 286.375);
+  --sidebar-accent-foreground: oklch(0.21 0.006 285.885);
+  --sidebar-border: oklch(0.92 0.004 286.32);
+  --sidebar-ring: oklch(0.705 0.015 286.067);
+}
+
+.dark {
+  --background: oklch(0.141 0.005 285.823);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.21 0.006 285.885);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.21 0.006 285.885);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.92 0.004 286.32);
+  --primary-foreground: oklch(0.21 0.006 285.885);
+  --secondary: oklch(0.274 0.006 286.033);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.274 0.006 286.033);
+  --muted-foreground: oklch(0.705 0.015 286.067);
+  --accent: oklch(0.274 0.006 286.033);
+  --accent-foreground: oklch(0.985 0 0);
+  --destructive: oklch(0.704 0.191 22.216);
+  --border: oklch(1 0 0 / 10%);
+  --input: oklch(1 0 0 / 15%);
+  --ring: oklch(0.552 0.016 285.938);
+  --chart-1: oklch(0.488 0.243 264.376);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.769 0.188 70.08);
+  --chart-4: oklch(0.627 0.265 303.9);
+  --chart-5: oklch(0.645 0.246 16.439);
+  --sidebar: oklch(0.21 0.006 285.885);
+  --sidebar-foreground: oklch(0.985 0 0);
+  --sidebar-primary: oklch(0.488 0.243 264.376);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.274 0.006 286.033);
+  --sidebar-accent-foreground: oklch(0.985 0 0);
+  --sidebar-border: oklch(1 0 0 / 10%);
+  --sidebar-ring: oklch(0.552 0.016 285.938);
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+
+  :root {
+    color-scheme: light;
+  }
+
+  :root.dark {
+    color-scheme: dark;
+  }
+
+  body {
+    @apply bg-background text-foreground;
+  }
+}

app/layout.tsx

@@ -0,0 +1,34 @@
+import type { Metadata } from "next";
+import { Geist, Geist_Mono } from "next/font/google";
+import "./globals.css";
+
+const geistSans = Geist({
+  variable: "--font-geist-sans",
+  subsets: ["latin"],
+});
+
+const geistMono = Geist_Mono({
+  variable: "--font-geist-mono",
+  subsets: ["latin"],
+});
+
+export const metadata: Metadata = {
+  title: "assistant-ui Starter App",
+  description: "Generated by create-assistant-ui",
+};
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html lang="en">
+      <body
+        className={`${geistSans.variable} ${geistMono.variable} antialiased`}
+      >
+        {children}
+      </body>
+    </html>
+  );
+}

app/page.tsx

@@ -0,0 +1,5 @@
+import { Assistant } from "./assistant";
+
+export default function Home() {
+  return <Assistant />;
+}

components.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "app/globals.css",
+    "baseColor": "zinc",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "iconLibrary": "lucide"
+}

components/assistant-ui/attachment.tsx

@@ -0,0 +1,235 @@
+"use client";
+
+import { PropsWithChildren, useEffect, useState, type FC } from "react";
+import Image from "next/image";
+import { XIcon, PlusIcon, FileText } from "lucide-react";
+import {
+  AttachmentPrimitive,
+  ComposerPrimitive,
+  MessagePrimitive,
+  useAssistantState,
+  useAssistantApi,
+} from "@assistant-ui/react";
+import { useShallow } from "zustand/shallow";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import {
+  Dialog,
+  DialogTitle,
+  DialogContent,
+  DialogTrigger,
+} from "@/components/ui/dialog";
+import { Avatar, AvatarImage, AvatarFallback } from "@/components/ui/avatar";
+import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";
+import { cn } from "@/lib/utils";
+
+const useFileSrc = (file: File | undefined) => {
+  const [src, setSrc] = useState<string | undefined>(undefined);
+
+  useEffect(() => {
+    if (!file) {
+      setSrc(undefined);
+      return;
+    }
+
+    const objectUrl = URL.createObjectURL(file);
+    setSrc(objectUrl);
+
+    return () => {
+      URL.revokeObjectURL(objectUrl);
+    };
+  }, [file]);
+
+  return src;
+};
+
+const useAttachmentSrc = () => {
+  const { file, src } = useAssistantState(
+    useShallow(({ attachment }): { file?: File; src?: string } => {
+      if (attachment.type !== "image") return {};
+      if (attachment.file) return { file: attachment.file };
+      const src = attachment.content?.filter((c) => c.type === "image")[0]
+        ?.image;
+      if (!src) return {};
+      return { src };
+    }),
+  );
+
+  return useFileSrc(file) ?? src;
+};
+
+type AttachmentPreviewProps = {
+  src: string;
+};
+
+const AttachmentPreview: FC<AttachmentPreviewProps> = ({ src }) => {
+  const [isLoaded, setIsLoaded] = useState(false);
+  return (
+    <Image
+      src={src}
+      alt="Image Preview"
+      width={1}
+      height={1}
+      className={
+        isLoaded
+          ? "aui-attachment-preview-image-loaded block h-auto max-h-[80vh] w-auto max-w-full object-contain"
+          : "aui-attachment-preview-image-loading hidden"
+      }
+      onLoadingComplete={() => setIsLoaded(true)}
+      priority={false}
+    />
+  );
+};
+
+const AttachmentPreviewDialog: FC<PropsWithChildren> = ({ children }) => {
+  const src = useAttachmentSrc();
+
+  if (!src) return children;
+
+  return (
+    <Dialog>
+      <DialogTrigger
+        className="aui-attachment-preview-trigger cursor-pointer transition-colors hover:bg-accent/50"
+        asChild
+      >
+        {children}
+      </DialogTrigger>
+      <DialogContent className="aui-attachment-preview-dialog-content p-2 sm:max-w-3xl [&_svg]:text-background [&>button]:rounded-full [&>button]:bg-foreground/60 [&>button]:p-1 [&>button]:opacity-100 [&>button]:!ring-0 [&>button]:hover:[&_svg]:text-destructive">
+        <DialogTitle className="aui-sr-only sr-only">
+          Image Attachment Preview
+        </DialogTitle>
+        <div className="aui-attachment-preview relative mx-auto flex max-h-[80dvh] w-full items-center justify-center overflow-hidden bg-background">
+          <AttachmentPreview src={src} />
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+};
+
+const AttachmentThumb: FC = () => {
+  const isImage = useAssistantState(
+    ({ attachment }) => attachment.type === "image",
+  );
+  const src = useAttachmentSrc();
+
+  return (
+    <Avatar className="aui-attachment-tile-avatar h-full w-full rounded-none">
+      <AvatarImage
+        src={src}
+        alt="Attachment preview"
+        className="aui-attachment-tile-image object-cover"
+      />
+      <AvatarFallback delayMs={isImage ? 200 : 0}>
+        <FileText className="aui-attachment-tile-fallback-icon size-8 text-muted-foreground" />
+      </AvatarFallback>
+    </Avatar>
+  );
+};
+
+const AttachmentUI: FC = () => {
+  const api = useAssistantApi();
+  const isComposer = api.attachment.source === "composer";
+
+  const isImage = useAssistantState(
+    ({ attachment }) => attachment.type === "image",
+  );
+  const typeLabel = useAssistantState(({ attachment }) => {
+    const type = attachment.type;
+    switch (type) {
+      case "image":
+        return "Image";
+      case "document":
+        return "Document";
+      case "file":
+        return "File";
+      default:
+        const _exhaustiveCheck: never = type;
+        throw new Error(`Unknown attachment type: ${_exhaustiveCheck}`);
+    }
+  });
+
+  return (
+    <Tooltip>
+      <AttachmentPrimitive.Root
+        className={cn(
+          "aui-attachment-root relative",
+          isImage &&
+            "aui-attachment-root-composer only:[&>#attachment-tile]:size-24",
+        )}
+      >
+        <AttachmentPreviewDialog>
+          <TooltipTrigger asChild>
+            <div
+              className={cn(
+                "aui-attachment-tile size-14 cursor-pointer overflow-hidden rounded-[14px] border bg-muted transition-opacity hover:opacity-75",
+                isComposer &&
+                  "aui-attachment-tile-composer border-foreground/20",
+              )}
+              role="button"
+              id="attachment-tile"
+              aria-label={`${typeLabel} attachment`}
+            >
+              <AttachmentThumb />
+            </div>
+          </TooltipTrigger>
+        </AttachmentPreviewDialog>
+        {isComposer && <AttachmentRemove />}
+      </AttachmentPrimitive.Root>
+      <TooltipContent side="top">
+        <AttachmentPrimitive.Name />
+      </TooltipContent>
+    </Tooltip>
+  );
+};
+
+const AttachmentRemove: FC = () => {
+  return (
+    <AttachmentPrimitive.Remove asChild>
+      <TooltipIconButton
+        tooltip="Remove file"
+        className="aui-attachment-tile-remove absolute top-1.5 right-1.5 size-3.5 rounded-full bg-white text-muted-foreground opacity-100 shadow-sm hover:!bg-white [&_svg]:text-black hover:[&_svg]:text-destructive"
+        side="top"
+      >
+        <XIcon className="aui-attachment-remove-icon size-3 dark:stroke-[2.5px]" />
+      </TooltipIconButton>
+    </AttachmentPrimitive.Remove>
+  );
+};
+
+export const UserMessageAttachments: FC = () => {
+  return (
+    <div className="aui-user-message-attachments-end col-span-full col-start-1 row-start-1 flex w-full flex-row justify-end gap-2">
+      <MessagePrimitive.Attachments components={{ Attachment: AttachmentUI }} />
+    </div>
+  );
+};
+
+export const ComposerAttachments: FC = () => {
+  return (
+    <div className="aui-composer-attachments mb-2 flex w-full flex-row items-center gap-2 overflow-x-auto px-1.5 pt-0.5 pb-1 empty:hidden">
+      <ComposerPrimitive.Attachments
+        components={{ Attachment: AttachmentUI }}
+      />
+    </div>
+  );
+};
+
+export const ComposerAddAttachment: FC = () => {
+  return (
+    <ComposerPrimitive.AddAttachment asChild>
+      <TooltipIconButton
+        tooltip="Add Attachment"
+        side="bottom"
+        variant="ghost"
+        size="icon"
+        className="aui-composer-add-attachment size-[34px] rounded-full p-1 text-xs font-semibold hover:bg-muted-foreground/15 dark:border-muted-foreground/15 dark:hover:bg-muted-foreground/30"
+        aria-label="Add Attachment"
+      >
+        <PlusIcon className="aui-attachment-add-icon size-5 stroke-[1.5px]" />
+      </TooltipIconButton>
+    </ComposerPrimitive.AddAttachment>
+  );
+};

components/assistant-ui/markdown-text.tsx

@@ -0,0 +1,228 @@
+"use client";
+
+import "@assistant-ui/react-markdown/styles/dot.css";
+
+import {
+  type CodeHeaderProps,
+  MarkdownTextPrimitive,
+  unstable_memoizeMarkdownComponents as memoizeMarkdownComponents,
+  useIsMarkdownCodeBlock,
+} from "@assistant-ui/react-markdown";
+import remarkGfm from "remark-gfm";
+import { type FC, memo, useState } from "react";
+import { CheckIcon, CopyIcon } from "lucide-react";
+
+import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";
+import { cn } from "@/lib/utils";
+
+const MarkdownTextImpl = () => {
+  return (
+    <MarkdownTextPrimitive
+      remarkPlugins={[remarkGfm]}
+      className="aui-md"
+      components={defaultComponents}
+    />
+  );
+};
+
+export const MarkdownText = memo(MarkdownTextImpl);
+
+const CodeHeader: FC<CodeHeaderProps> = ({ language, code }) => {
+  const { isCopied, copyToClipboard } = useCopyToClipboard();
+  const onCopy = () => {
+    if (!code || isCopied) return;
+    copyToClipboard(code);
+  };
+
+  return (
+    <div className="aui-code-header-root mt-4 flex items-center justify-between gap-4 rounded-t-lg bg-muted-foreground/15 px-4 py-2 text-sm font-semibold text-foreground dark:bg-muted-foreground/20">
+      <span className="aui-code-header-language lowercase [&>span]:text-xs">
+        {language}
+      </span>
+      <TooltipIconButton tooltip="Copy" onClick={onCopy}>
+        {!isCopied && <CopyIcon />}
+        {isCopied && <CheckIcon />}
+      </TooltipIconButton>
+    </div>
+  );
+};
+
+const useCopyToClipboard = ({
+  copiedDuration = 3000,
+}: {
+  copiedDuration?: number;
+} = {}) => {
+  const [isCopied, setIsCopied] = useState<boolean>(false);
+
+  const copyToClipboard = (value: string) => {
+    if (!value) return;
+
+    navigator.clipboard.writeText(value).then(() => {
+      setIsCopied(true);
+      setTimeout(() => setIsCopied(false), copiedDuration);
+    });
+  };
+
+  return { isCopied, copyToClipboard };
+};
+
+const defaultComponents = memoizeMarkdownComponents({
+  h1: ({ className, ...props }) => (
+    <h1
+      className={cn(
+        "aui-md-h1 mb-8 scroll-m-20 text-4xl font-extrabold tracking-tight last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  h2: ({ className, ...props }) => (
+    <h2
+      className={cn(
+        "aui-md-h2 mt-8 mb-4 scroll-m-20 text-3xl font-semibold tracking-tight first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  h3: ({ className, ...props }) => (
+    <h3
+      className={cn(
+        "aui-md-h3 mt-6 mb-4 scroll-m-20 text-2xl font-semibold tracking-tight first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  h4: ({ className, ...props }) => (
+    <h4
+      className={cn(
+        "aui-md-h4 mt-6 mb-4 scroll-m-20 text-xl font-semibold tracking-tight first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  h5: ({ className, ...props }) => (
+    <h5
+      className={cn(
+        "aui-md-h5 my-4 text-lg font-semibold first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  h6: ({ className, ...props }) => (
+    <h6
+      className={cn(
+        "aui-md-h6 my-4 font-semibold first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  p: ({ className, ...props }) => (
+    <p
+      className={cn(
+        "aui-md-p mt-5 mb-5 leading-7 first:mt-0 last:mb-0",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  a: ({ className, ...props }) => (
+    <a
+      className={cn(
+        "aui-md-a font-medium text-primary underline underline-offset-4",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  blockquote: ({ className, ...props }) => (
+    <blockquote
+      className={cn("aui-md-blockquote border-l-2 pl-6 italic", className)}
+      {...props}
+    />
+  ),
+  ul: ({ className, ...props }) => (
+    <ul
+      className={cn("aui-md-ul my-5 ml-6 list-disc [&>li]:mt-2", className)}
+      {...props}
+    />
+  ),
+  ol: ({ className, ...props }) => (
+    <ol
+      className={cn("aui-md-ol my-5 ml-6 list-decimal [&>li]:mt-2", className)}
+      {...props}
+    />
+  ),
+  hr: ({ className, ...props }) => (
+    <hr className={cn("aui-md-hr my-5 border-b", className)} {...props} />
+  ),
+  table: ({ className, ...props }) => (
+    <table
+      className={cn(
+        "aui-md-table my-5 w-full border-separate border-spacing-0 overflow-y-auto",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  th: ({ className, ...props }) => (
+    <th
+      className={cn(
+        "aui-md-th bg-muted px-4 py-2 text-left font-bold first:rounded-tl-lg last:rounded-tr-lg [&[align=center]]:text-center [&[align=right]]:text-right",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  td: ({ className, ...props }) => (
+    <td
+      className={cn(
+        "aui-md-td border-b border-l px-4 py-2 text-left last:border-r [&[align=center]]:text-center [&[align=right]]:text-right",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  tr: ({ className, ...props }) => (
+    <tr
+      className={cn(
+        "aui-md-tr m-0 border-b p-0 first:border-t [&:last-child>td:first-child]:rounded-bl-lg [&:last-child>td:last-child]:rounded-br-lg",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  sup: ({ className, ...props }) => (
+    <sup
+      className={cn("aui-md-sup [&>a]:text-xs [&>a]:no-underline", className)}
+      {...props}
+    />
+  ),
+  pre: ({ className, ...props }) => (
+    <pre
+      className={cn(
+        "aui-md-pre overflow-x-auto !rounded-t-none rounded-b-lg bg-black p-4 text-white",
+        className,
+      )}
+      {...props}
+    />
+  ),
+  code: function Code({ className, ...props }) {
+    const isCodeBlock = useIsMarkdownCodeBlock();
+    return (
+      <code
+        className={cn(
+          !isCodeBlock &&
+            "aui-md-inline-code rounded border bg-muted font-semibold",
+          className,
+        )}
+        {...props}
+      />
+    );
+  },
+  CodeHeader,
+});

components/assistant-ui/reasoning.tsx

@@ -0,0 +1,267 @@
+"use client";
+
+import { BrainIcon, ChevronDownIcon } from "lucide-react";
+import {
+  memo,
+  useCallback,
+  useRef,
+  useState,
+  type FC,
+  type PropsWithChildren,
+} from "react";
+
+import {
+  useScrollLock,
+  useAssistantState,
+  type ReasoningMessagePartComponent,
+  type ReasoningGroupComponent,
+} from "@assistant-ui/react";
+
+import { MarkdownText } from "@/components/assistant-ui/markdown-text";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
+import { cn } from "@/lib/utils";
+
+const ANIMATION_DURATION = 200;
+const SHIMMER_DURATION = 1000;
+
+/**
+ * Root collapsible container that manages open/closed state and scroll lock.
+ * Provides animation timing via CSS variable and prevents scroll jumps on collapse.
+ */
+const ReasoningRoot: FC<
+  PropsWithChildren<{
+    className?: string;
+  }>
+> = ({ className, children }) => {
+  const collapsibleRef = useRef<HTMLDivElement>(null);
+  const [isOpen, setIsOpen] = useState(false);
+  const lockScroll = useScrollLock(collapsibleRef, ANIMATION_DURATION);
+
+  const handleOpenChange = useCallback(
+    (open: boolean) => {
+      if (!open) {
+        lockScroll();
+      }
+      setIsOpen(open);
+    },
+    [lockScroll],
+  );
+
+  return (
+    <Collapsible
+      ref={collapsibleRef}
+      open={isOpen}
+      onOpenChange={handleOpenChange}
+      className={cn("aui-reasoning-root mb-4 w-full", className)}
+      style={
+        {
+          "--animation-duration": `${ANIMATION_DURATION}ms`,
+          "--shimmer-duration": `${SHIMMER_DURATION}ms`,
+        } as React.CSSProperties
+      }
+    >
+      {children}
+    </Collapsible>
+  );
+};
+
+ReasoningRoot.displayName = "ReasoningRoot";
+
+/**
+ * Gradient overlay that softens the bottom edge during expand/collapse animations.
+ * Animation: Fades out with delay when opening and fades back in when closing.
+ */
+const GradientFade: FC<{ className?: string }> = ({ className }) => (
+  <div
+    className={cn(
+      "aui-reasoning-fade pointer-events-none absolute inset-x-0 bottom-0 z-10 h-16",
+      "bg-[linear-gradient(to_top,var(--color-background),transparent)]",
+      "animate-in fade-in-0",
+      "group-data-[state=open]/collapsible-content:animate-out",
+      "group-data-[state=open]/collapsible-content:fade-out-0",
+      "group-data-[state=open]/collapsible-content:delay-[calc(var(--animation-duration)*0.75)]", // calc for timing the delay
+      "group-data-[state=open]/collapsible-content:fill-mode-forwards",
+      "duration-(--animation-duration)",
+      "group-data-[state=open]/collapsible-content:duration-(--animation-duration)",
+      className,
+    )}
+  />
+);
+
+/**
+ * Trigger button for the Reasoning collapsible.
+ * Composed of icons, label, and text shimmer animation when reasoning is being streamed.
+ */
+const ReasoningTrigger: FC<{ active: boolean; className?: string }> = ({
+  active,
+  className,
+}) => (
+  <CollapsibleTrigger
+    className={cn(
+      "aui-reasoning-trigger group/trigger -mb-2 flex max-w-[75%] items-center gap-2 py-2 text-sm text-muted-foreground transition-colors hover:text-foreground",
+      className,
+    )}
+  >
+    <BrainIcon className="aui-reasoning-trigger-icon size-4 shrink-0" />
+    <span className="aui-reasoning-trigger-label-wrapper relative inline-block leading-none">
+      <span>Reasoning</span>
+      {active ? (
+        <span
+          aria-hidden
+          className={cn(
+            "aui-reasoning-trigger-shimmer pointer-events-none absolute inset-0 bg-clip-text bg-no-repeat text-transparent motion-reduce:animate-none",
+            "animate-shimmer will-change-[background-position]",
+            "bg-size-[200%_100%]",
+            "bg-[linear-gradient(90deg,transparent_0%,transparent_40%,color-mix(in_oklch,var(--foreground)_75%,transparent)_56%,transparent_80%,transparent_100%)]",
+          )}
+        >
+          Reasoning
+        </span>
+      ) : null}
+    </span>
+    <ChevronDownIcon
+      className={cn(
+        "aui-reasoning-trigger-chevron mt-0.5 size-4 shrink-0",
+        "transition-transform duration-(--animation-duration) ease-out",
+        "group-data-[state=closed]/trigger:-rotate-90",
+        "group-data-[state=open]/trigger:rotate-0",
+      )}
+    />
+  </CollapsibleTrigger>
+);
+
+/**
+ * Collapsible content wrapper that handles height expand/collapse animation.
+ * Animation: Height animates up (collapse) and down (expand).
+ * Also provides group context for child animations via data-state attributes.
+ */
+const ReasoningContent: FC<
+  PropsWithChildren<{
+    className?: string;
+    "aria-busy"?: boolean;
+  }>
+> = ({ className, children, "aria-busy": ariaBusy }) => (
+  <CollapsibleContent
+    className={cn(
+      "aui-reasoning-content relative overflow-hidden text-sm text-muted-foreground outline-none",
+      "group/collapsible-content ease-out",
+      "data-[state=closed]:animate-collapsible-up",
+      "data-[state=open]:animate-collapsible-down",
+      "data-[state=closed]:fill-mode-forwards",
+      "data-[state=closed]:pointer-events-none",
+      "data-[state=open]:duration-(--animation-duration)",
+      "data-[state=closed]:duration-(--animation-duration)",
+      className,
+    )}
+    aria-busy={ariaBusy}
+  >
+    {children}
+    <GradientFade />
+  </CollapsibleContent>
+);
+
+ReasoningContent.displayName = "ReasoningContent";
+
+/**
+ * Text content wrapper that animates the reasoning text visibility.
+ * Animation: Slides in from top + fades in when opening, reverses when closing.
+ * Reacts to parent ReasoningContent's data-state via Radix group selectors.
+ */
+const ReasoningText: FC<
+  PropsWithChildren<{
+    className?: string;
+  }>
+> = ({ className, children }) => (
+  <div
+    className={cn(
+      "aui-reasoning-text relative z-0 space-y-4 pt-4 pl-6 leading-relaxed",
+      "transform-gpu transition-[transform,opacity]",
+      "group-data-[state=open]/collapsible-content:animate-in",
+      "group-data-[state=closed]/collapsible-content:animate-out",
+      "group-data-[state=open]/collapsible-content:fade-in-0",
+      "group-data-[state=closed]/collapsible-content:fade-out-0",
+      "group-data-[state=open]/collapsible-content:slide-in-from-top-4",
+      "group-data-[state=closed]/collapsible-content:slide-out-to-top-4",
+      "group-data-[state=open]/collapsible-content:duration-(--animation-duration)",
+      "group-data-[state=closed]/collapsible-content:duration-(--animation-duration)",
+      "[&_p]:-mb-2",
+      className,
+    )}
+  >
+    {children}
+  </div>
+);
+
+ReasoningText.displayName = "ReasoningText";
+
+/**
+ * Renders a single reasoning part's text with markdown support.
+ * Consecutive reasoning parts are automatically grouped by ReasoningGroup.
+ *
+ * Pass Reasoning to MessagePrimitive.Parts in thread.tsx
+ *
+ * @example:
+ * ```tsx
+ * <MessagePrimitive.Parts
+ *   components={{
+ *     Reasoning: Reasoning,
+ *     ReasoningGroup: ReasoningGroup,
+ *   }}
+ * />
+ * ```
+ */
+const ReasoningImpl: ReasoningMessagePartComponent = () => <MarkdownText />;
+
+/**
+ * Collapsible wrapper that groups consecutive reasoning parts together.
+ *  Includes scroll lock to prevent page jumps during collapse animation.
+ *
+ *  Pass ReasoningGroup to MessagePrimitive.Parts in thread.tsx
+ *
+ * @example:
+ * ```tsx
+ * <MessagePrimitive.Parts
+ *   components={{
+ *     Reasoning: Reasoning,
+ *     ReasoningGroup: ReasoningGroup,
+ *   }}
+ * />
+ * ```
+ */
+const ReasoningGroupImpl: ReasoningGroupComponent = ({
+  children,
+  startIndex,
+  endIndex,
+}) => {
+  /**
+   * Detects if reasoning is currently streaming within this group's range.
+   */
+  const isReasoningStreaming = useAssistantState(({ message }) => {
+    if (message.status?.type !== "running") return false;
+    const lastIndex = message.parts.length - 1;
+    if (lastIndex < 0) return false;
+    const lastType = message.parts[lastIndex]?.type;
+    if (lastType !== "reasoning") return false;
+    return lastIndex >= startIndex && lastIndex <= endIndex;
+  });
+
+  return (
+    <ReasoningRoot>
+      <ReasoningTrigger active={isReasoningStreaming} />
+
+      <ReasoningContent aria-busy={isReasoningStreaming}>
+        <ReasoningText>{children}</ReasoningText>
+      </ReasoningContent>
+    </ReasoningRoot>
+  );
+};
+
+export const Reasoning = memo(ReasoningImpl);
+Reasoning.displayName = "Reasoning";
+
+export const ReasoningGroup = memo(ReasoningGroupImpl);
+ReasoningGroup.displayName = "ReasoningGroup";

components/assistant-ui/thread-list.tsx

@@ -0,0 +1,95 @@
+import type { FC } from "react";
+import {
+  ThreadListItemPrimitive,
+  ThreadListPrimitive,
+  useAssistantState,
+} from "@assistant-ui/react";
+import { ArchiveIcon, PlusIcon } from "lucide-react";
+
+import { Button } from "@/components/ui/button";
+import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";
+import { Skeleton } from "@/components/ui/skeleton";
+
+export const ThreadList: FC = () => {
+  return (
+    <ThreadListPrimitive.Root className="aui-root aui-thread-list-root flex flex-col items-stretch gap-1.5">
+      <ThreadListNew />
+      <ThreadListItems />
+    </ThreadListPrimitive.Root>
+  );
+};
+
+const ThreadListNew: FC = () => {
+  return (
+    <ThreadListPrimitive.New asChild>
+      <Button
+        className="aui-thread-list-new flex items-center justify-start gap-1 rounded-lg px-2.5 py-2 text-start hover:bg-muted data-active:bg-muted"
+        variant="ghost"
+      >
+        <PlusIcon />
+        New Thread
+      </Button>
+    </ThreadListPrimitive.New>
+  );
+};
+
+const ThreadListItems: FC = () => {
+  const isLoading = useAssistantState(({ threads }) => threads.isLoading);
+
+  if (isLoading) {
+    return <ThreadListSkeleton />;
+  }
+
+  return <ThreadListPrimitive.Items components={{ ThreadListItem }} />;
+};
+
+const ThreadListSkeleton: FC = () => {
+  return (
+    <>
+      {Array.from({ length: 5 }, (_, i) => (
+        <div
+          key={i}
+          role="status"
+          aria-label="Loading threads"
+          aria-live="polite"
+          className="aui-thread-list-skeleton-wrapper flex items-center gap-2 rounded-md px-3 py-2"
+        >
+          <Skeleton className="aui-thread-list-skeleton h-[22px] flex-grow" />
+        </div>
+      ))}
+    </>
+  );
+};
+
+const ThreadListItem: FC = () => {
+  return (
+    <ThreadListItemPrimitive.Root className="aui-thread-list-item flex items-center gap-2 rounded-lg transition-all hover:bg-muted focus-visible:bg-muted focus-visible:ring-2 focus-visible:ring-ring focus-visible:outline-none data-active:bg-muted">
+      <ThreadListItemPrimitive.Trigger className="aui-thread-list-item-trigger flex-grow px-3 py-2 text-start">
+        <ThreadListItemTitle />
+      </ThreadListItemPrimitive.Trigger>
+      <ThreadListItemArchive />
+    </ThreadListItemPrimitive.Root>
+  );
+};
+
+const ThreadListItemTitle: FC = () => {
+  return (
+    <span className="aui-thread-list-item-title text-sm">
+      <ThreadListItemPrimitive.Title fallback="New Chat" />
+    </span>
+  );
+};
+
+const ThreadListItemArchive: FC = () => {
+  return (
+    <ThreadListItemPrimitive.Archive asChild>
+      <TooltipIconButton
+        className="aui-thread-list-item-archive mr-3 ml-auto size-4 p-0 text-foreground hover:text-primary"
+        variant="ghost"
+        tooltip="Archive thread"
+      >
+        <ArchiveIcon />
+      </TooltipIconButton>
+    </ThreadListItemPrimitive.Archive>
+  );
+};

components/assistant-ui/thread.tsx

@@ -0,0 +1,392 @@
+import {
+  ArrowDownIcon,
+  ArrowUpIcon,
+  CheckIcon,
+  ChevronLeftIcon,
+  ChevronRightIcon,
+  CopyIcon,
+  PencilIcon,
+  RefreshCwIcon,
+  Square,
+} from "lucide-react";
+
+import {
+  ActionBarPrimitive,
+  BranchPickerPrimitive,
+  ComposerPrimitive,
+  ErrorPrimitive,
+  MessagePrimitive,
+  ThreadPrimitive,
+} from "@assistant-ui/react";
+
+import type { FC } from "react";
+import { LazyMotion, MotionConfig, domAnimation } from "motion/react";
+import * as m from "motion/react-m";
+
+import { Button } from "@/components/ui/button";
+import { MarkdownText } from "@/components/assistant-ui/markdown-text";
+import { Reasoning, ReasoningGroup } from "@/components/assistant-ui/reasoning";
+import { ToolFallback } from "@/components/assistant-ui/tool-fallback";
+import { TooltipIconButton } from "@/components/assistant-ui/tooltip-icon-button";
+import {
+  ComposerAddAttachment,
+  ComposerAttachments,
+  UserMessageAttachments,
+} from "@/components/assistant-ui/attachment";
+
+import { cn } from "@/lib/utils";
+
+export const Thread: FC = () => {
+  return (
+    <LazyMotion features={domAnimation}>
+      <MotionConfig reducedMotion="user">
+        <ThreadPrimitive.Root
+          className="aui-root aui-thread-root @container flex h-full flex-col bg-background"
+          style={{
+            ["--thread-max-width" as string]: "44rem",
+          }}
+        >
+          <ThreadPrimitive.Viewport className="aui-thread-viewport relative flex flex-1 flex-col overflow-x-auto overflow-y-scroll px-4">
+            <ThreadPrimitive.If empty>
+              <ThreadWelcome />
+            </ThreadPrimitive.If>
+
+            <ThreadPrimitive.Messages
+              components={{
+                UserMessage,
+                EditComposer,
+                AssistantMessage,
+              }}
+            />
+
+            <ThreadPrimitive.If empty={false}>
+              <div className="aui-thread-viewport-spacer min-h-8 grow" />
+            </ThreadPrimitive.If>
+
+            <Composer />
+          </ThreadPrimitive.Viewport>
+        </ThreadPrimitive.Root>
+      </MotionConfig>
+    </LazyMotion>
+  );
+};
+
+const ThreadScrollToBottom: FC = () => {
+  return (
+    <ThreadPrimitive.ScrollToBottom asChild>
+      <TooltipIconButton
+        tooltip="Scroll to bottom"
+        variant="outline"
+        className="aui-thread-scroll-to-bottom absolute -top-12 z-10 self-center rounded-full p-4 disabled:invisible dark:bg-background dark:hover:bg-accent"
+      >
+        <ArrowDownIcon />
+      </TooltipIconButton>
+    </ThreadPrimitive.ScrollToBottom>
+  );
+};
+
+const ThreadWelcome: FC = () => {
+  return (
+    <div className="aui-thread-welcome-root mx-auto my-auto flex w-full max-w-[var(--thread-max-width)] flex-grow flex-col">
+      <div className="aui-thread-welcome-center flex w-full flex-grow flex-col items-center justify-center">
+        <div className="aui-thread-welcome-message flex size-full flex-col justify-center px-8">
+          <m.div
+            initial={{ opacity: 0, y: 10 }}
+            animate={{ opacity: 1, y: 0 }}
+            exit={{ opacity: 0, y: 10 }}
+            className="aui-thread-welcome-message-motion-1 text-2xl font-semibold"
+          >
+            Hello there!
+          </m.div>
+          <m.div
+            initial={{ opacity: 0, y: 10 }}
+            animate={{ opacity: 1, y: 0 }}
+            exit={{ opacity: 0, y: 10 }}
+            transition={{ delay: 0.1 }}
+            className="aui-thread-welcome-message-motion-2 text-2xl text-muted-foreground/65"
+          >
+            How can I help you today?
+          </m.div>
+        </div>
+      </div>
+      <ThreadSuggestions />
+    </div>
+  );
+};
+
+const ThreadSuggestions: FC = () => {
+  return (
+    <div className="aui-thread-welcome-suggestions grid w-full gap-2 pb-4 @md:grid-cols-2">
+      {[
+        {
+          title: "What's the weather",
+          label: "in San Francisco?",
+          action: "What's the weather in San Francisco?",
+        },
+        {
+          title: "Explain React hooks",
+          label: "like useState and useEffect",
+          action: "Explain React hooks like useState and useEffect",
+        },
+        {
+          title: "Write a SQL query",
+          label: "to find top customers",
+          action: "Write a SQL query to find top customers",
+        },
+        {
+          title: "Create a meal plan",
+          label: "for healthy weight loss",
+          action: "Create a meal plan for healthy weight loss",
+        },
+      ].map((suggestedAction, index) => (
+        <m.div
+          initial={{ opacity: 0, y: 20 }}
+          animate={{ opacity: 1, y: 0 }}
+          exit={{ opacity: 0, y: 20 }}
+          transition={{ delay: 0.05 * index }}
+          key={`suggested-action-${suggestedAction.title}-${index}`}
+          className="aui-thread-welcome-suggestion-display [&:nth-child(n+3)]:hidden @md:[&:nth-child(n+3)]:block"
+        >
+          <ThreadPrimitive.Suggestion
+            prompt={suggestedAction.action}
+            send
+            asChild
+          >
+            <Button
+              variant="ghost"
+              className="aui-thread-welcome-suggestion h-auto w-full flex-1 flex-wrap items-start justify-start gap-1 rounded-3xl border px-5 py-4 text-left text-sm @md:flex-col dark:hover:bg-accent/60"
+              aria-label={suggestedAction.action}
+            >
+              <span className="aui-thread-welcome-suggestion-text-1 font-medium">
+                {suggestedAction.title}
+              </span>
+              <span className="aui-thread-welcome-suggestion-text-2 text-muted-foreground">
+                {suggestedAction.label}
+              </span>
+            </Button>
+          </ThreadPrimitive.Suggestion>
+        </m.div>
+      ))}
+    </div>
+  );
+};
+
+const Composer: FC = () => {
+  return (
+    <div className="aui-composer-wrapper sticky bottom-0 mx-auto flex w-full max-w-[var(--thread-max-width)] flex-col gap-4 overflow-visible rounded-t-3xl bg-background pb-4 md:pb-6">
+      <ThreadScrollToBottom />
+      <ComposerPrimitive.Root className="aui-composer-root relative flex w-full flex-col">
+        <ComposerPrimitive.AttachmentDropzone className="aui-composer-attachment-dropzone group/input-group flex w-full flex-col rounded-3xl border border-input bg-background px-1 pt-2 shadow-xs transition-[color,box-shadow] outline-none has-[textarea:focus-visible]:border-ring has-[textarea:focus-visible]:ring-[3px] has-[textarea:focus-visible]:ring-ring/50 data-[dragging=true]:border-dashed data-[dragging=true]:border-ring data-[dragging=true]:bg-accent/50 dark:bg-background">
+          <ComposerAttachments />
+          <ComposerPrimitive.Input
+            placeholder="Send a message..."
+            className="aui-composer-input mb-1 max-h-32 min-h-16 w-full resize-none bg-transparent px-3.5 pt-1.5 pb-3 text-base outline-none placeholder:text-muted-foreground focus-visible:ring-0"
+            rows={1}
+            autoFocus
+            aria-label="Message input"
+          />
+          <ComposerAction />
+        </ComposerPrimitive.AttachmentDropzone>
+      </ComposerPrimitive.Root>
+    </div>
+  );
+};
+
+const ComposerAction: FC = () => {
+  return (
+    <div className="aui-composer-action-wrapper relative mx-1 mt-2 mb-2 flex items-center justify-between">
+      <ComposerAddAttachment />
+
+      <ThreadPrimitive.If running={false}>
+        <ComposerPrimitive.Send asChild>
+          <TooltipIconButton
+            tooltip="Send message"
+            side="bottom"
+            type="submit"
+            variant="default"
+            size="icon"
+            className="aui-composer-send size-[34px] rounded-full p-1"
+            aria-label="Send message"
+          >
+            <ArrowUpIcon className="aui-composer-send-icon size-5" />
+          </TooltipIconButton>
+        </ComposerPrimitive.Send>
+      </ThreadPrimitive.If>
+
+      <ThreadPrimitive.If running>
+        <ComposerPrimitive.Cancel asChild>
+          <Button
+            type="button"
+            variant="default"
+            size="icon"
+            className="aui-composer-cancel size-[34px] rounded-full border border-muted-foreground/60 hover:bg-primary/75 dark:border-muted-foreground/90"
+            aria-label="Stop generating"
+          >
+            <Square className="aui-composer-cancel-icon size-3.5 fill-white dark:fill-black" />
+          </Button>
+        </ComposerPrimitive.Cancel>
+      </ThreadPrimitive.If>
+    </div>
+  );
+};
+
+const MessageError: FC = () => {
+  return (
+    <MessagePrimitive.Error>
+      <ErrorPrimitive.Root className="aui-message-error-root mt-2 rounded-md border border-destructive bg-destructive/10 p-3 text-sm text-destructive dark:bg-destructive/5 dark:text-red-200">
+        <ErrorPrimitive.Message className="aui-message-error-message line-clamp-2" />
+      </ErrorPrimitive.Root>
+    </MessagePrimitive.Error>
+  );
+};
+
+const AssistantMessage: FC = () => {
+  return (
+    <MessagePrimitive.Root asChild>
+      <div
+        className="aui-assistant-message-root relative mx-auto w-full max-w-[var(--thread-max-width)] animate-in py-4 duration-150 ease-out fade-in slide-in-from-bottom-1 last:mb-24"
+        data-role="assistant"
+      >
+        <div className="aui-assistant-message-content mx-2 leading-7 break-words text-foreground">
+          <MessagePrimitive.Parts
+            components={{
+              Text: MarkdownText,
+              Reasoning: Reasoning,
+              ReasoningGroup: ReasoningGroup,
+              tools: { Fallback: ToolFallback },
+            }}
+          />
+          <MessageError />
+        </div>
+
+        <div className="aui-assistant-message-footer mt-2 ml-2 flex">
+          <BranchPicker />
+          <AssistantActionBar />
+        </div>
+      </div>
+    </MessagePrimitive.Root>
+  );
+};
+
+const AssistantActionBar: FC = () => {
+  return (
+    <ActionBarPrimitive.Root
+      hideWhenRunning
+      autohide="not-last"
+      autohideFloat="single-branch"
+      className="aui-assistant-action-bar-root col-start-3 row-start-2 -ml-1 flex gap-1 text-muted-foreground data-floating:absolute data-floating:rounded-md data-floating:border data-floating:bg-background data-floating:p-1 data-floating:shadow-sm"
+    >
+      <ActionBarPrimitive.Copy asChild>
+        <TooltipIconButton tooltip="Copy">
+          <MessagePrimitive.If copied>
+            <CheckIcon />
+          </MessagePrimitive.If>
+          <MessagePrimitive.If copied={false}>
+            <CopyIcon />
+          </MessagePrimitive.If>
+        </TooltipIconButton>
+      </ActionBarPrimitive.Copy>
+      <ActionBarPrimitive.Reload asChild>
+        <TooltipIconButton tooltip="Refresh">
+          <RefreshCwIcon />
+        </TooltipIconButton>
+      </ActionBarPrimitive.Reload>
+    </ActionBarPrimitive.Root>
+  );
+};
+
+const UserMessage: FC = () => {
+  return (
+    <MessagePrimitive.Root asChild>
+      <div
+        className="aui-user-message-root mx-auto grid w-full max-w-[var(--thread-max-width)] animate-in auto-rows-auto grid-cols-[minmax(72px,1fr)_auto] gap-y-2 px-2 py-4 duration-150 ease-out fade-in slide-in-from-bottom-1 first:mt-3 last:mb-5 [&:where(>*)]:col-start-2"
+        data-role="user"
+      >
+        <UserMessageAttachments />
+
+        <div className="aui-user-message-content-wrapper relative col-start-2 min-w-0">
+          <div className="aui-user-message-content rounded-3xl bg-muted px-5 py-2.5 break-words text-foreground">
+            <MessagePrimitive.Parts />
+          </div>
+          <div className="aui-user-action-bar-wrapper absolute top-1/2 left-0 -translate-x-full -translate-y-1/2 pr-2">
+            <UserActionBar />
+          </div>
+        </div>
+
+        <BranchPicker className="aui-user-branch-picker col-span-full col-start-1 row-start-3 -mr-1 justify-end" />
+      </div>
+    </MessagePrimitive.Root>
+  );
+};
+
+const UserActionBar: FC = () => {
+  return (
+    <ActionBarPrimitive.Root
+      hideWhenRunning
+      autohide="not-last"
+      className="aui-user-action-bar-root flex flex-col items-end"
+    >
+      <ActionBarPrimitive.Edit asChild>
+        <TooltipIconButton tooltip="Edit" className="aui-user-action-edit p-4">
+          <PencilIcon />
+        </TooltipIconButton>
+      </ActionBarPrimitive.Edit>
+    </ActionBarPrimitive.Root>
+  );
+};
+
+const EditComposer: FC = () => {
+  return (
+    <div className="aui-edit-composer-wrapper mx-auto flex w-full max-w-[var(--thread-max-width)] flex-col gap-4 px-2 first:mt-4">
+      <ComposerPrimitive.Root className="aui-edit-composer-root ml-auto flex w-full max-w-7/8 flex-col rounded-xl bg-muted">
+        <ComposerPrimitive.Input
+          className="aui-edit-composer-input flex min-h-[60px] w-full resize-none bg-transparent p-4 text-foreground outline-none"
+          autoFocus
+        />
+
+        <div className="aui-edit-composer-footer mx-3 mb-3 flex items-center justify-center gap-2 self-end">
+          <ComposerPrimitive.Cancel asChild>
+            <Button variant="ghost" size="sm" aria-label="Cancel edit">
+              Cancel
+            </Button>
+          </ComposerPrimitive.Cancel>
+          <ComposerPrimitive.Send asChild>
+            <Button size="sm" aria-label="Update message">
+              Update
+            </Button>
+          </ComposerPrimitive.Send>
+        </div>
+      </ComposerPrimitive.Root>
+    </div>
+  );
+};
+
+const BranchPicker: FC<BranchPickerPrimitive.Root.Props> = ({
+  className,
+  ...rest
+}) => {
+  return (
+    <BranchPickerPrimitive.Root
+      hideWhenSingleBranch
+      className={cn(
+        "aui-branch-picker-root mr-2 -ml-2 inline-flex items-center text-xs text-muted-foreground",
+        className,
+      )}
+      {...rest}
+    >
+      <BranchPickerPrimitive.Previous asChild>
+        <TooltipIconButton tooltip="Previous">
+          <ChevronLeftIcon />
+        </TooltipIconButton>
+      </BranchPickerPrimitive.Previous>
+      <span className="aui-branch-picker-state font-medium">
+        <BranchPickerPrimitive.Number /> / <BranchPickerPrimitive.Count />
+      </span>
+      <BranchPickerPrimitive.Next asChild>
+        <TooltipIconButton tooltip="Next">
+          <ChevronRightIcon />
+        </TooltipIconButton>
+      </BranchPickerPrimitive.Next>
+    </BranchPickerPrimitive.Root>
+  );
+};

components/assistant-ui/threadlist-sidebar.tsx

@@ -0,0 +1,73 @@
+import * as React from "react";
+import { Github, MessagesSquare } from "lucide-react";
+import Link from "next/link";
+import {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarHeader,
+  SidebarMenu,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarRail,
+} from "@/components/ui/sidebar";
+import { ThreadList } from "@/components/assistant-ui/thread-list";
+
+export function ThreadListSidebar({
+  ...props
+}: React.ComponentProps<typeof Sidebar>) {
+  return (
+    <Sidebar {...props}>
+      <SidebarHeader className="aui-sidebar-header mb-2 border-b">
+        <div className="aui-sidebar-header-content flex items-center justify-between">
+          <SidebarMenu>
+            <SidebarMenuItem>
+              <SidebarMenuButton size="lg" asChild>
+                <Link
+                  href="https://assistant-ui.com"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                >
+                  <div className="aui-sidebar-header-icon-wrapper flex aspect-square size-8 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
+                    <MessagesSquare className="aui-sidebar-header-icon size-4" />
+                  </div>
+                  <div className="aui-sidebar-header-heading mr-6 flex flex-col gap-0.5 leading-none">
+                    <span className="aui-sidebar-header-title font-semibold">
+                      assistant-ui
+                    </span>
+                  </div>
+                </Link>
+              </SidebarMenuButton>
+            </SidebarMenuItem>
+          </SidebarMenu>
+        </div>
+      </SidebarHeader>
+      <SidebarContent className="aui-sidebar-content px-2">
+        <ThreadList />
+      </SidebarContent>
+      <SidebarRail />
+      <SidebarFooter className="aui-sidebar-footer border-t">
+        <SidebarMenu>
+          <SidebarMenuItem>
+            <SidebarMenuButton size="lg" asChild>
+              <Link
+                href="https://github.com/assistant-ui/assistant-ui"
+                target="_blank"
+              >
+                <div className="aui-sidebar-footer-icon-wrapper flex aspect-square size-8 items-center justify-center rounded-lg bg-sidebar-primary text-sidebar-primary-foreground">
+                  <Github className="aui-sidebar-footer-icon size-4" />
+                </div>
+                <div className="aui-sidebar-footer-heading flex flex-col gap-0.5 leading-none">
+                  <span className="aui-sidebar-footer-title font-semibold">
+                    GitHub
+                  </span>
+                  <span>View Source</span>
+                </div>
+              </Link>
+            </SidebarMenuButton>
+          </SidebarMenuItem>
+        </SidebarMenu>
+      </SidebarFooter>
+    </Sidebar>
+  );
+}

components/assistant-ui/tool-fallback.tsx

@@ -0,0 +1,46 @@
+import type { ToolCallMessagePartComponent } from "@assistant-ui/react";
+import { CheckIcon, ChevronDownIcon, ChevronUpIcon } from "lucide-react";
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+
+export const ToolFallback: ToolCallMessagePartComponent = ({
+  toolName,
+  argsText,
+  result,
+}) => {
+  const [isCollapsed, setIsCollapsed] = useState(true);
+  return (
+    <div className="aui-tool-fallback-root mb-4 flex w-full flex-col gap-3 rounded-lg border py-3">
+      <div className="aui-tool-fallback-header flex items-center gap-2 px-4">
+        <CheckIcon className="aui-tool-fallback-icon size-4" />
+        <p className="aui-tool-fallback-title flex-grow">
+          Used tool: <b>{toolName}</b>
+        </p>
+        <Button onClick={() => setIsCollapsed(!isCollapsed)}>
+          {isCollapsed ? <ChevronUpIcon /> : <ChevronDownIcon />}
+        </Button>
+      </div>
+      {!isCollapsed && (
+        <div className="aui-tool-fallback-content flex flex-col gap-2 border-t pt-2">
+          <div className="aui-tool-fallback-args-root px-4">
+            <pre className="aui-tool-fallback-args-value whitespace-pre-wrap">
+              {argsText}
+            </pre>
+          </div>
+          {result !== undefined && (
+            <div className="aui-tool-fallback-result-root border-t border-dashed px-4 pt-2">
+              <p className="aui-tool-fallback-result-header font-semibold">
+                Result:
+              </p>
+              <pre className="aui-tool-fallback-result-content whitespace-pre-wrap">
+                {typeof result === "string"
+                  ? result
+                  : JSON.stringify(result, null, 2)}
+              </pre>
+            </div>
+          )}
+        </div>
+      )}
+    </div>
+  );
+};

components/assistant-ui/tooltip-icon-button.tsx

@@ -0,0 +1,42 @@
+"use client";
+
+import { ComponentPropsWithRef, forwardRef } from "react";
+import { Slottable } from "@radix-ui/react-slot";
+
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
+
+export type TooltipIconButtonProps = ComponentPropsWithRef<typeof Button> & {
+  tooltip: string;
+  side?: "top" | "bottom" | "left" | "right";
+};
+
+export const TooltipIconButton = forwardRef<
+  HTMLButtonElement,
+  TooltipIconButtonProps
+>(({ children, tooltip, side = "bottom", className, ...rest }, ref) => {
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>
+        <Button
+          variant="ghost"
+          size="icon"
+          {...rest}
+          className={cn("aui-button-icon size-6 p-1", className)}
+          ref={ref}
+        >
+          <Slottable>{children}</Slottable>
+          <span className="aui-sr-only sr-only">{tooltip}</span>
+        </Button>
+      </TooltipTrigger>
+      <TooltipContent side={side}>{tooltip}</TooltipContent>
+    </Tooltip>
+  );
+});
+
+TooltipIconButton.displayName = "TooltipIconButton";

components/ui/avatar.tsx

@@ -0,0 +1,53 @@
+"use client";
+
+import * as React from "react";
+import * as AvatarPrimitive from "@radix-ui/react-avatar";
+
+import { cn } from "@/lib/utils";
+
+function Avatar({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Root>) {
+  return (
+    <AvatarPrimitive.Root
+      data-slot="avatar"
+      className={cn(
+        "relative flex size-8 shrink-0 overflow-hidden rounded-full",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function AvatarImage({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Image>) {
+  return (
+    <AvatarPrimitive.Image
+      data-slot="avatar-image"
+      className={cn("aspect-square size-full", className)}
+      {...props}
+    />
+  );
+}
+
+function AvatarFallback({
+  className,
+  ...props
+}: React.ComponentProps<typeof AvatarPrimitive.Fallback>) {
+  return (
+    <AvatarPrimitive.Fallback
+      data-slot="avatar-fallback"
+      className={cn(
+        "flex size-full items-center justify-center rounded-full bg-muted",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Avatar, AvatarImage, AvatarFallback };

components/ui/breadcrumb.tsx

@@ -0,0 +1,109 @@
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { ChevronRight, MoreHorizontal } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+function Breadcrumb({ ...props }: React.ComponentProps<"nav">) {
+  return <nav aria-label="breadcrumb" data-slot="breadcrumb" {...props} />;
+}
+
+function BreadcrumbList({ className, ...props }: React.ComponentProps<"ol">) {
+  return (
+    <ol
+      data-slot="breadcrumb-list"
+      className={cn(
+        "flex flex-wrap items-center gap-1.5 text-sm break-words text-muted-foreground sm:gap-2.5",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function BreadcrumbItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="breadcrumb-item"
+      className={cn("inline-flex items-center gap-1.5", className)}
+      {...props}
+    />
+  );
+}
+
+function BreadcrumbLink({
+  asChild,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean;
+}) {
+  const Comp = asChild ? Slot : "a";
+
+  return (
+    <Comp
+      data-slot="breadcrumb-link"
+      className={cn("transition-colors hover:text-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function BreadcrumbPage({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="breadcrumb-page"
+      role="link"
+      aria-disabled="true"
+      aria-current="page"
+      className={cn("font-normal text-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function BreadcrumbSeparator({
+  children,
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="breadcrumb-separator"
+      role="presentation"
+      aria-hidden="true"
+      className={cn("[&>svg]:size-3.5", className)}
+      {...props}
+    >
+      {children ?? <ChevronRight />}
+    </li>
+  );
+}
+
+function BreadcrumbEllipsis({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="breadcrumb-ellipsis"
+      role="presentation"
+      aria-hidden="true"
+      className={cn("flex size-9 items-center justify-center", className)}
+      {...props}
+    >
+      <MoreHorizontal className="size-4" />
+      <span className="sr-only">More</span>
+    </span>
+  );
+}
+
+export {
+  Breadcrumb,
+  BreadcrumbList,
+  BreadcrumbItem,
+  BreadcrumbLink,
+  BreadcrumbPage,
+  BreadcrumbSeparator,
+  BreadcrumbEllipsis,
+};

components/ui/button.tsx

@@ -0,0 +1,60 @@
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+
+import { cn } from "@/lib/utils";
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground hover:bg-primary/90",
+        destructive:
+          "bg-destructive text-white hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+        outline:
+          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
+        secondary:
+          "bg-secondary text-secondary-foreground hover:bg-secondary/80",
+        ghost:
+          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default: "h-9 px-4 py-2 has-[>svg]:px-3",
+        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
+        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
+        icon: "size-9",
+        "icon-sm": "size-8",
+        "icon-lg": "size-10",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+function Button({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean;
+  }) {
+  const Comp = asChild ? Slot : "button";
+
+  return (
+    <Comp
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  );
+}
+
+export { Button, buttonVariants };

components/ui/collapsible.tsx

@@ -0,0 +1,33 @@
+"use client";
+
+import * as CollapsiblePrimitive from "@radix-ui/react-collapsible";
+
+function Collapsible({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.Root>) {
+  return <CollapsiblePrimitive.Root data-slot="collapsible" {...props} />;
+}
+
+function CollapsibleTrigger({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleTrigger>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleTrigger
+      data-slot="collapsible-trigger"
+      {...props}
+    />
+  );
+}
+
+function CollapsibleContent({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleContent>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleContent
+      data-slot="collapsible-content"
+      {...props}
+    />
+  );
+}
+
+export { Collapsible, CollapsibleTrigger, CollapsibleContent };

components/ui/dialog.tsx

@@ -0,0 +1,143 @@
+"use client";
+
+import * as React from "react";
+import * as DialogPrimitive from "@radix-ui/react-dialog";
+import { XIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+function Dialog({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Root>) {
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />;
+}
+
+function DialogTrigger({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />;
+}
+
+function DialogPortal({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Portal>) {
+  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />;
+}
+
+function DialogClose({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Close>) {
+  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />;
+}
+
+function DialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
+  return (
+    <DialogPrimitive.Overlay
+      data-slot="dialog-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/50 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:animate-in data-[state=open]:fade-in-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function DialogContent({
+  className,
+  children,
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Content> & {
+  showCloseButton?: boolean;
+}) {
+  return (
+    <DialogPortal data-slot="dialog-portal">
+      <DialogOverlay />
+      <DialogPrimitive.Content
+        data-slot="dialog-content"
+        className={cn(
+          "fixed top-[50%] left-[50%] z-50 grid w-full max-w-[calc(100%-2rem)] translate-x-[-50%] translate-y-[-50%] gap-4 rounded-lg border bg-background p-6 shadow-lg duration-200 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95 data-[state=open]:animate-in data-[state=open]:fade-in-0 data-[state=open]:zoom-in-95 sm:max-w-lg",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <DialogPrimitive.Close
+            data-slot="dialog-close"
+            className="absolute top-4 right-4 rounded-xs opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:ring-2 focus:ring-ring focus:ring-offset-2 focus:outline-hidden disabled:pointer-events-none data-[state=open]:bg-accent data-[state=open]:text-muted-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4"
+          >
+            <XIcon />
+            <span className="sr-only">Close</span>
+          </DialogPrimitive.Close>
+        )}
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  );
+}
+
+function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="dialog-header"
+      className={cn("flex flex-col gap-2 text-center sm:text-left", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="dialog-footer"
+      className={cn(
+        "flex flex-col-reverse gap-2 sm:flex-row sm:justify-end",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      data-slot="dialog-title"
+      className={cn("text-lg leading-none font-semibold", className)}
+      {...props}
+    />
+  );
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      data-slot="dialog-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+};

components/ui/input.tsx

@@ -0,0 +1,21 @@
+import * as React from "react";
+
+import { cn } from "@/lib/utils";
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <input
+      type={type}
+      data-slot="input"
+      className={cn(
+        "h-9 w-full min-w-0 rounded-md border border-input bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none selection:bg-primary selection:text-primary-foreground file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm dark:bg-input/30",
+        "focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50",
+        "aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Input };

components/ui/separator.tsx

@@ -0,0 +1,28 @@
+"use client";
+
+import * as React from "react";
+import * as SeparatorPrimitive from "@radix-ui/react-separator";
+
+import { cn } from "@/lib/utils";
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border data-[orientation=horizontal]:h-px data-[orientation=horizontal]:w-full data-[orientation=vertical]:h-full data-[orientation=vertical]:w-px",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export { Separator };

components/ui/sheet.tsx

@@ -0,0 +1,139 @@
+"use client";
+
+import * as React from "react";
+import * as SheetPrimitive from "@radix-ui/react-dialog";
+import { XIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+
+function Sheet({ ...props }: React.ComponentProps<typeof SheetPrimitive.Root>) {
+  return <SheetPrimitive.Root data-slot="sheet" {...props} />;
+}
+
+function SheetTrigger({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Trigger>) {
+  return <SheetPrimitive.Trigger data-slot="sheet-trigger" {...props} />;
+}
+
+function SheetClose({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Close>) {
+  return <SheetPrimitive.Close data-slot="sheet-close" {...props} />;
+}
+
+function SheetPortal({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Portal>) {
+  return <SheetPrimitive.Portal data-slot="sheet-portal" {...props} />;
+}
+
+function SheetOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Overlay>) {
+  return (
+    <SheetPrimitive.Overlay
+      data-slot="sheet-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/50 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:animate-in data-[state=open]:fade-in-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SheetContent({
+  className,
+  children,
+  side = "right",
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Content> & {
+  side?: "top" | "right" | "bottom" | "left";
+}) {
+  return (
+    <SheetPortal>
+      <SheetOverlay />
+      <SheetPrimitive.Content
+        data-slot="sheet-content"
+        className={cn(
+          "fixed z-50 flex flex-col gap-4 bg-background shadow-lg transition ease-in-out data-[state=closed]:animate-out data-[state=closed]:duration-300 data-[state=open]:animate-in data-[state=open]:duration-500",
+          side === "right" &&
+            "inset-y-0 right-0 h-full w-3/4 border-l data-[state=closed]:slide-out-to-right data-[state=open]:slide-in-from-right sm:max-w-sm",
+          side === "left" &&
+            "inset-y-0 left-0 h-full w-3/4 border-r data-[state=closed]:slide-out-to-left data-[state=open]:slide-in-from-left sm:max-w-sm",
+          side === "top" &&
+            "inset-x-0 top-0 h-auto border-b data-[state=closed]:slide-out-to-top data-[state=open]:slide-in-from-top",
+          side === "bottom" &&
+            "inset-x-0 bottom-0 h-auto border-t data-[state=closed]:slide-out-to-bottom data-[state=open]:slide-in-from-bottom",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        <SheetPrimitive.Close className="absolute top-4 right-4 rounded-xs opacity-70 ring-offset-background transition-opacity hover:opacity-100 focus:ring-2 focus:ring-ring focus:ring-offset-2 focus:outline-hidden disabled:pointer-events-none data-[state=open]:bg-secondary">
+          <XIcon className="size-4" />
+          <span className="sr-only">Close</span>
+        </SheetPrimitive.Close>
+      </SheetPrimitive.Content>
+    </SheetPortal>
+  );
+}
+
+function SheetHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-header"
+      className={cn("flex flex-col gap-1.5 p-4", className)}
+      {...props}
+    />
+  );
+}
+
+function SheetFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-footer"
+      className={cn("mt-auto flex flex-col gap-2 p-4", className)}
+      {...props}
+    />
+  );
+}
+
+function SheetTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Title>) {
+  return (
+    <SheetPrimitive.Title
+      data-slot="sheet-title"
+      className={cn("font-semibold text-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+function SheetDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Description>) {
+  return (
+    <SheetPrimitive.Description
+      data-slot="sheet-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  );
+}
+
+export {
+  Sheet,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+};

components/ui/sidebar.tsx

@@ -0,0 +1,726 @@
+"use client";
+
+import * as React from "react";
+import { Slot } from "@radix-ui/react-slot";
+import { cva, type VariantProps } from "class-variance-authority";
+import { PanelLeftIcon } from "lucide-react";
+
+import { useIsMobile } from "@/hooks/use-mobile";
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Separator } from "@/components/ui/separator";
+import {
+  Sheet,
+  SheetContent,
+  SheetDescription,
+  SheetHeader,
+  SheetTitle,
+} from "@/components/ui/sheet";
+import { Skeleton } from "@/components/ui/skeleton";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+
+const SIDEBAR_COOKIE_NAME = "sidebar_state";
+const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7;
+const SIDEBAR_WIDTH = "16rem";
+const SIDEBAR_WIDTH_MOBILE = "18rem";
+const SIDEBAR_WIDTH_ICON = "3rem";
+const SIDEBAR_KEYBOARD_SHORTCUT = "b";
+
+type SidebarContextProps = {
+  state: "expanded" | "collapsed";
+  open: boolean;
+  setOpen: (open: boolean) => void;
+  openMobile: boolean;
+  setOpenMobile: (open: boolean) => void;
+  isMobile: boolean;
+  toggleSidebar: () => void;
+};
+
+const SidebarContext = React.createContext<SidebarContextProps | null>(null);
+
+function useSidebar() {
+  const context = React.useContext(SidebarContext);
+  if (!context) {
+    throw new Error("useSidebar must be used within a SidebarProvider.");
+  }
+
+  return context;
+}
+
+function SidebarProvider({
+  defaultOpen = true,
+  open: openProp,
+  onOpenChange: setOpenProp,
+  className,
+  style,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  defaultOpen?: boolean;
+  open?: boolean;
+  onOpenChange?: (open: boolean) => void;
+}) {
+  const isMobile = useIsMobile();
+  const [openMobile, setOpenMobile] = React.useState(false);
+
+  // This is the internal state of the sidebar.
+  // We use openProp and setOpenProp for control from outside the component.
+  const [_open, _setOpen] = React.useState(defaultOpen);
+  const open = openProp ?? _open;
+  const setOpen = React.useCallback(
+    (value: boolean | ((value: boolean) => boolean)) => {
+      const openState = typeof value === "function" ? value(open) : value;
+      if (setOpenProp) {
+        setOpenProp(openState);
+      } else {
+        _setOpen(openState);
+      }
+
+      // This sets the cookie to keep the sidebar state.
+      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`;
+    },
+    [setOpenProp, open],
+  );
+
+  // Helper to toggle the sidebar.
+  const toggleSidebar = React.useCallback(() => {
+    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open);
+  }, [isMobile, setOpen, setOpenMobile]);
+
+  // Adds a keyboard shortcut to toggle the sidebar.
+  React.useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (
+        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
+        (event.metaKey || event.ctrlKey)
+      ) {
+        event.preventDefault();
+        toggleSidebar();
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [toggleSidebar]);
+
+  // We add a state so that we can do data-state="expanded" or "collapsed".
+  // This makes it easier to style the sidebar with Tailwind classes.
+  const state = open ? "expanded" : "collapsed";
+
+  const contextValue = React.useMemo<SidebarContextProps>(
+    () => ({
+      state,
+      open,
+      setOpen,
+      isMobile,
+      openMobile,
+      setOpenMobile,
+      toggleSidebar,
+    }),
+    [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar],
+  );
+
+  return (
+    <SidebarContext.Provider value={contextValue}>
+      <TooltipProvider delayDuration={0}>
+        <div
+          data-slot="sidebar-wrapper"
+          style={
+            {
+              "--sidebar-width": SIDEBAR_WIDTH,
+              "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
+              ...style,
+            } as React.CSSProperties
+          }
+          className={cn(
+            "group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
+            className,
+          )}
+          {...props}
+        >
+          {children}
+        </div>
+      </TooltipProvider>
+    </SidebarContext.Provider>
+  );
+}
+
+function Sidebar({
+  side = "left",
+  variant = "sidebar",
+  collapsible = "offcanvas",
+  className,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  side?: "left" | "right";
+  variant?: "sidebar" | "floating" | "inset";
+  collapsible?: "offcanvas" | "icon" | "none";
+}) {
+  const { isMobile, state, openMobile, setOpenMobile } = useSidebar();
+
+  if (collapsible === "none") {
+    return (
+      <div
+        data-slot="sidebar"
+        className={cn(
+          "flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    );
+  }
+
+  if (isMobile) {
+    return (
+      <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
+        <SheetContent
+          data-sidebar="sidebar"
+          data-slot="sidebar"
+          data-mobile="true"
+          className="w-(--sidebar-width) bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
+          style={
+            {
+              "--sidebar-width": SIDEBAR_WIDTH_MOBILE,
+            } as React.CSSProperties
+          }
+          side={side}
+        >
+          <SheetHeader className="sr-only">
+            <SheetTitle>Sidebar</SheetTitle>
+            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
+          </SheetHeader>
+          <div className="flex h-full w-full flex-col">{children}</div>
+        </SheetContent>
+      </Sheet>
+    );
+  }
+
+  return (
+    <div
+      className="group peer hidden text-sidebar-foreground md:block"
+      data-state={state}
+      data-collapsible={state === "collapsed" ? collapsible : ""}
+      data-variant={variant}
+      data-side={side}
+      data-slot="sidebar"
+    >
+      {/* This is what handles the sidebar gap on desktop */}
+      <div
+        data-slot="sidebar-gap"
+        className={cn(
+          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
+          "group-data-[collapsible=offcanvas]:w-0",
+          "group-data-[side=right]:rotate-180",
+          variant === "floating" || variant === "inset"
+            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)",
+        )}
+      />
+      <div
+        data-slot="sidebar-container"
+        className={cn(
+          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex",
+          side === "left"
+            ? "left-0 group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)]"
+            : "right-0 group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]",
+          // Adjust the padding for floating and inset variants.
+          variant === "floating" || variant === "inset"
+            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r group-data-[side=right]:border-l",
+          className,
+        )}
+        {...props}
+      >
+        <div
+          data-sidebar="sidebar"
+          data-slot="sidebar-inner"
+          className="flex h-full w-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border group-data-[variant=floating]:border-sidebar-border group-data-[variant=floating]:shadow-sm"
+        >
+          {children}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function SidebarTrigger({
+  className,
+  onClick,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { toggleSidebar } = useSidebar();
+
+  return (
+    <Button
+      data-sidebar="trigger"
+      data-slot="sidebar-trigger"
+      variant="ghost"
+      size="icon"
+      className={cn("size-7", className)}
+      onClick={(event) => {
+        onClick?.(event);
+        toggleSidebar();
+      }}
+      {...props}
+    >
+      <PanelLeftIcon />
+      <span className="sr-only">Toggle Sidebar</span>
+    </Button>
+  );
+}
+
+function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
+  const { toggleSidebar } = useSidebar();
+
+  return (
+    <button
+      data-sidebar="rail"
+      data-slot="sidebar-rail"
+      aria-label="Toggle Sidebar"
+      tabIndex={-1}
+      onClick={toggleSidebar}
+      title="Toggle Sidebar"
+      className={cn(
+        "absolute inset-y-0 z-20 hidden w-4 -translate-x-1/2 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:left-1/2 after:w-[2px] hover:after:bg-sidebar-border sm:flex",
+        "in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize",
+        "[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
+        "group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full hover:group-data-[collapsible=offcanvas]:bg-sidebar",
+        "[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
+        "[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
+  return (
+    <main
+      data-slot="sidebar-inset"
+      className={cn(
+        "relative flex w-full flex-1 flex-col bg-background",
+        "md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:shadow-sm md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof Input>) {
+  return (
+    <Input
+      data-slot="sidebar-input"
+      data-sidebar="input"
+      className={cn("h-8 w-full bg-background shadow-none", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-header"
+      data-sidebar="header"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-footer"
+      data-sidebar="footer"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="sidebar-separator"
+      data-sidebar="separator"
+      className={cn("mx-2 w-auto bg-sidebar-border", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-content"
+      data-sidebar="content"
+      className={cn(
+        "flex min-h-0 flex-1 flex-col gap-2 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group"
+      data-sidebar="group"
+      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupLabel({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot : "div";
+
+  return (
+    <Comp
+      data-slot="sidebar-group-label"
+      data-sidebar="group-label"
+      className={cn(
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-xs font-medium text-sidebar-foreground/70 ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        "group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupAction({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot : "button";
+
+  return (
+    <Comp
+      data-slot="sidebar-group-action"
+      data-sidebar="group-action"
+      className={cn(
+        "absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        // Increases the hit area of the button on mobile.
+        "after:absolute after:-inset-2 md:after:hidden",
+        "group-data-[collapsible=icon]:hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarGroupContent({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group-content"
+      data-sidebar="group-content"
+      className={cn("w-full text-sm", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu"
+      data-sidebar="menu"
+      className={cn("flex w-full min-w-0 flex-col gap-1", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-item"
+      data-sidebar="menu-item"
+      className={cn("group/menu-item relative", className)}
+      {...props}
+    />
+  );
+}
+
+const sidebarMenuButtonVariants = cva(
+  "peer/menu-button flex w-full items-center gap-2 overflow-hidden rounded-md p-2 text-left text-sm outline-hidden ring-sidebar-ring transition-[width,height,padding] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 group-has-data-[sidebar=menu-action]/menu-item:pr-8 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[active=true]:bg-sidebar-accent data-[active=true]:font-medium data-[active=true]:text-sidebar-accent-foreground data-[state=open]:hover:bg-sidebar-accent data-[state=open]:hover:text-sidebar-accent-foreground group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "hover:bg-sidebar-accent hover:text-sidebar-accent-foreground",
+        outline:
+          "bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]",
+      },
+      size: {
+        default: "h-8 text-sm",
+        sm: "h-7 text-xs",
+        lg: "h-12 text-sm group-data-[collapsible=icon]:p-0!",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  },
+);
+
+function SidebarMenuButton({
+  asChild = false,
+  isActive = false,
+  variant = "default",
+  size = "default",
+  tooltip,
+  className,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean;
+  isActive?: boolean;
+  tooltip?: string | React.ComponentProps<typeof TooltipContent>;
+} & VariantProps<typeof sidebarMenuButtonVariants>) {
+  const Comp = asChild ? Slot : "button";
+  const { isMobile, state } = useSidebar();
+
+  const button = (
+    <Comp
+      data-slot="sidebar-menu-button"
+      data-sidebar="menu-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
+      {...props}
+    />
+  );
+
+  if (!tooltip) {
+    return button;
+  }
+
+  if (typeof tooltip === "string") {
+    tooltip = {
+      children: tooltip,
+    };
+  }
+
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>{button}</TooltipTrigger>
+      <TooltipContent
+        side="right"
+        align="center"
+        hidden={state !== "collapsed" || isMobile}
+        {...tooltip}
+      />
+    </Tooltip>
+  );
+}
+
+function SidebarMenuAction({
+  className,
+  asChild = false,
+  showOnHover = false,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean;
+  showOnHover?: boolean;
+}) {
+  const Comp = asChild ? Slot : "button";
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-action"
+      data-sidebar="menu-action"
+      className={cn(
+        "absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform peer-hover/menu-button:text-sidebar-accent-foreground hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        // Increases the hit area of the button on mobile.
+        "after:absolute after:-inset-2 md:after:hidden",
+        "peer-data-[size=sm]/menu-button:top-1",
+        "peer-data-[size=default]/menu-button:top-1.5",
+        "peer-data-[size=lg]/menu-button:top-2.5",
+        "group-data-[collapsible=icon]:hidden",
+        showOnHover &&
+          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-[active=true]/menu-button:text-sidebar-accent-foreground data-[state=open]:opacity-100 md:opacity-0",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuBadge({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-menu-badge"
+      data-sidebar="menu-badge"
+      className={cn(
+        "pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded-md px-1 text-xs font-medium text-sidebar-foreground tabular-nums select-none",
+        "peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[active=true]/menu-button:text-sidebar-accent-foreground",
+        "peer-data-[size=sm]/menu-button:top-1",
+        "peer-data-[size=default]/menu-button:top-1.5",
+        "peer-data-[size=lg]/menu-button:top-2.5",
+        "group-data-[collapsible=icon]:hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSkeleton({
+  className,
+  showIcon = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showIcon?: boolean;
+}) {
+  // Random width between 50 to 90%.
+  const width = React.useMemo(() => {
+    return `${Math.floor(Math.random() * 40) + 50}%`;
+  }, []);
+
+  return (
+    <div
+      data-slot="sidebar-menu-skeleton"
+      data-sidebar="menu-skeleton"
+      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
+      {...props}
+    >
+      {showIcon && (
+        <Skeleton
+          className="size-4 rounded-md"
+          data-sidebar="menu-skeleton-icon"
+        />
+      )}
+      <Skeleton
+        className="h-4 max-w-(--skeleton-width) flex-1"
+        data-sidebar="menu-skeleton-text"
+        style={
+          {
+            "--skeleton-width": width,
+          } as React.CSSProperties
+        }
+      />
+    </div>
+  );
+}
+
+function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu-sub"
+      data-sidebar="menu-sub"
+      className={cn(
+        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5",
+        "group-data-[collapsible=icon]:hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSubItem({
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-sub-item"
+      data-sidebar="menu-sub-item"
+      className={cn("group/menu-sub-item relative", className)}
+      {...props}
+    />
+  );
+}
+
+function SidebarMenuSubButton({
+  asChild = false,
+  size = "md",
+  isActive = false,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean;
+  size?: "sm" | "md";
+  isActive?: boolean;
+}) {
+  const Comp = asChild ? Slot : "a";
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-sub-button"
+      data-sidebar="menu-sub-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(
+        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground ring-sidebar-ring outline-hidden hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
+        "data-[active=true]:bg-sidebar-accent data-[active=true]:text-sidebar-accent-foreground",
+        size === "sm" && "text-xs",
+        size === "md" && "text-sm",
+        "group-data-[collapsible=icon]:hidden",
+        className,
+      )}
+      {...props}
+    />
+  );
+}
+
+export {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupAction,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInput,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuAction,
+  SidebarMenuBadge,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarMenuSkeleton,
+  SidebarMenuSub,
+  SidebarMenuSubButton,
+  SidebarMenuSubItem,
+  SidebarProvider,
+  SidebarRail,
+  SidebarSeparator,
+  SidebarTrigger,
+  useSidebar,
+};

components/ui/skeleton.tsx

@@ -0,0 +1,13 @@
+import { cn } from "@/lib/utils";
+
+function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="skeleton"
+      className={cn("animate-pulse rounded-md bg-accent", className)}
+      {...props}
+    />
+  );
+}
+
+export { Skeleton };

components/ui/tooltip.tsx

@@ -0,0 +1,61 @@
+"use client";
+
+import * as React from "react";
+import * as TooltipPrimitive from "@radix-ui/react-tooltip";
+
+import { cn } from "@/lib/utils";
+
+function TooltipProvider({
+  delayDuration = 0,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Provider>) {
+  return (
+    <TooltipPrimitive.Provider
+      data-slot="tooltip-provider"
+      delayDuration={delayDuration}
+      {...props}
+    />
+  );
+}
+
+function Tooltip({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Root>) {
+  return (
+    <TooltipProvider>
+      <TooltipPrimitive.Root data-slot="tooltip" {...props} />
+    </TooltipProvider>
+  );
+}
+
+function TooltipTrigger({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Trigger>) {
+  return <TooltipPrimitive.Trigger data-slot="tooltip-trigger" {...props} />;
+}
+
+function TooltipContent({
+  className,
+  sideOffset = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        data-slot="tooltip-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 w-fit origin-(--radix-tooltip-content-transform-origin) animate-in rounded-md bg-foreground px-3 py-1.5 text-xs text-balance text-background fade-in-0 zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=closed]:zoom-out-95",
+          className,
+        )}
+        {...props}
+      >
+        {children}
+        <TooltipPrimitive.Arrow className="z-50 size-2.5 translate-y-[calc(-50%_-_2px)] rotate-45 rounded-[2px] bg-foreground fill-foreground" />
+      </TooltipPrimitive.Content>
+    </TooltipPrimitive.Portal>
+  );
+}
+
+export { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider };

eslint.config.mjs

@@ -0,0 +1,16 @@
+import { dirname } from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
+const eslintConfig = [
+  ...compat.extends("next/core-web-vitals", "next/typescript"),
+];
+
+export default eslintConfig;

hooks/use-mobile.ts

@@ -0,0 +1,21 @@
+import * as React from "react";
+
+const MOBILE_BREAKPOINT = 768;
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(
+    undefined,
+  );
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`);
+    const onChange = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    };
+    mql.addEventListener("change", onChange);
+    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return !!isMobile;
+}

lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}

next.config.ts

@@ -0,0 +1,7 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  /* config options here */
+};
+
+export default nextConfig;

package.json

@@ -0,0 +1,57 @@
+{
+  "name": "assistant-ui-starter",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev --turbopack",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint",
+    "prettier": "prettier --check .",
+    "prettier:fix": "prettier --write ."
+  },
+  "prettier": {
+    "plugins": [
+      "prettier-plugin-tailwindcss"
+    ],
+    "tailwindStylesheet": "app/globals.css"
+  },
+  "dependencies": {
+    "@ai-sdk/openai": "^2.0.86",
+    "@assistant-ui/react": "^0.11.51",
+    "@assistant-ui/react-ai-sdk": "^1.1.19",
+    "@assistant-ui/react-markdown": "^0.11.8",
+    "@radix-ui/react-avatar": "^1.1.11",
+    "@radix-ui/react-collapsible": "^1.1.12",
+    "@radix-ui/react-dialog": "^1.1.15",
+    "@radix-ui/react-separator": "^1.1.8",
+    "@radix-ui/react-slot": "^1.2.4",
+    "@radix-ui/react-tooltip": "^1.2.8",
+    "ai": "^5.0.113",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "framer-motion": "^12.23.26",
+    "lucide-react": "^0.561.0",
+    "motion": "^12.23.26",
+    "next": "16.0.10",
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3",
+    "remark-gfm": "^4.0.1",
+    "tailwind-merge": "^3.4.0",
+    "tw-animate-css": "^1.4.0",
+    "zustand": "^5.0.9"
+  },
+  "devDependencies": {
+    "@eslint/eslintrc": "^3",
+    "@tailwindcss/postcss": "^4",
+    "@types/node": "^25",
+    "@types/react": "^19",
+    "@types/react-dom": "^19",
+    "eslint": "^9",
+    "eslint-config-next": "16.0.10",
+    "prettier": "^3.7.4",
+    "prettier-plugin-tailwindcss": "^0.7.2",
+    "tailwindcss": "^4",
+    "typescript": "^5"
+  }
+}

postcss.config.mjs

@@ -0,0 +1,5 @@
+const config = {
+  plugins: ["@tailwindcss/postcss"],
+};
+
+export default config;

tsconfig.json

@@ -0,0 +1,33 @@
+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./*"]
+    }
+  },
+  "include": [
+    "next-env.d.ts",
+    "**/*.ts",
+    "**/*.tsx",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts"
+  ],
+  "exclude": ["node_modules"]
+}