diff --git a/design/qwen-code-electron-desktop-implementation-plan.md b/design/qwen-code-electron-desktop-implementation-plan.md
new file mode 100644
index 000000000..6b8079ebb
--- /dev/null
+++ b/design/qwen-code-electron-desktop-implementation-plan.md
@@ -0,0 +1,226 @@
+# Qwen Code Electron Desktop Implementation Plan
+
+This plan tracks the incremental MVP implementation for the Electron desktop
+client described in
+`docs/design/qwen-code-electron-desktop/qwen-code-electron-desktop-architecture.md`.
+The architecture document is the source of truth; this file records execution
+order, verification, decisions, and remaining work.
+
+## Ground Rules
+
+- Use Electron only; do not introduce Tauri.
+- Keep the desktop shell thin: Electron main owns windows, native IPC, and the
+  local server lifecycle.
+- Reuse Qwen Code ACP, core services, and shared web UI as later slices reach
+  those layers.
+- Renderer must run with `nodeIntegration: false`, context isolation enabled,
+  and a preload whitelist.
+- The local server must bind only `127.0.0.1`, use a random token, and reject
+  unauthorized requests.
+- Every completed slice must leave passing targeted checks and a conventional
+  commit.
+
+## Task Breakdown
+
+### Slice 1: Desktop Workspace Skeleton and Health Service
+
+- Status: complete
+- Goal: add the first runnable desktop package with Electron main/preload,
+  React renderer, and a local authenticated `/health` endpoint.
+- Files:
+  - `packages/desktop/package.json`
+  - `packages/desktop/tsconfig*.json`
+  - `packages/desktop/vite.config.ts`
+  - `packages/desktop/src/main/**`
+  - `packages/desktop/src/preload/**`
+  - `packages/desktop/src/server/**`
+  - `packages/desktop/src/renderer/**`
+  - `scripts/build.js`
+  - `package-lock.json`
+- Acceptance criteria:
+  - `packages/desktop` is recognized as an npm workspace.
+  - Main starts `DesktopServer` before creating the window.
+  - Preload exposes only typed `qwenDesktop` methods.
+  - Renderer fetches server info through preload and calls `/health` with a
+    bearer token.
+  - `/health` returns success only for valid token and allowed origin.
+  - Desktop build is included after reusable packages in the root build order.
+- Verification:
+  - `npm install --workspace=packages/desktop`
+  - `npm run test --workspace=packages/desktop`
+  - `npm run typecheck --workspace=packages/desktop`
+  - `npm run build --workspace=packages/desktop`
+
+### Slice 2: Desktop Server Runtime Surface
+
+- Status: pending
+- Goal: add `/api/runtime` and typed error responses that expose CLI path,
+  platform, desktop version, and auth/account placeholders without spawning ACP.
+- Files:
+  - `packages/desktop/src/server/http/router.ts`
+  - `packages/desktop/src/server/services/runtimeService.ts`
+  - `packages/desktop/src/renderer/api/client.ts`
+  - `packages/desktop/src/renderer/App.tsx`
+- Acceptance criteria:
+  - Runtime route is token protected.
+  - Renderer shows runtime summary without exposing secrets.
+  - Tests cover success, unauthorized, and unknown route errors.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - `npm run typecheck --workspace=packages/desktop`
+  - `npm run build --workspace=packages/desktop`
+
+### Slice 3: ACP Process Client Wrapper
+
+- Status: pending
+- Goal: implement a desktop-local ACP child-process client around
+  `qwen --acp --channel=Desktop`.
+- Files:
+  - `packages/desktop/src/server/acp/AcpProcessClient.ts`
+  - `packages/desktop/src/server/acp/AcpEventRouter.ts`
+  - `packages/desktop/src/server/services/sessionService.ts`
+- Acceptance criteria:
+  - Development mode can spawn the repository CLI ACP entrypoint.
+  - Production path is isolated behind a resolver for packaged `dist/cli.js`.
+  - Tests mock ACP transport and cover initialize, list, new, load, and close.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - `npm run typecheck --workspace=packages/desktop`
+  - targeted ACP smoke command when credentials are not required
+
+### Slice 4: Session REST API
+
+- Status: pending
+- Goal: add session create/list/load/delete/rename endpoints backed by ACP.
+- Files:
+  - `packages/desktop/src/server/http/router.ts`
+  - `packages/desktop/src/server/services/sessionService.ts`
+  - `packages/desktop/src/renderer/stores/sessionStore.ts`
+- Acceptance criteria:
+  - Session routes enforce token and origin rules.
+  - Renderer can create a session for a selected cwd and list existing sessions.
+  - Failed ACP operations return typed retryable/non-retryable errors.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - `npm run typecheck --workspace=packages/desktop`
+  - manual DesktopServer smoke with fake ACP client
+
+### Slice 5: WebSocket Chat Loop
+
+- Status: pending
+- Goal: add per-session WS connections and send user prompts through ACP.
+- Files:
+  - `packages/desktop/src/server/ws/SessionSocketHub.ts`
+  - `packages/desktop/src/server/acp/AcpEventRouter.ts`
+  - `packages/desktop/src/renderer/api/websocket.ts`
+  - `packages/desktop/src/renderer/stores/chatStore.ts`
+- Acceptance criteria:
+  - WS handshake validates session id and token.
+  - One active prompt per session is enforced.
+  - Renderer receives normalized assistant/tool/usage events.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - fake ACP integration test for prompt and stream completion
+
+### Slice 6: Permission Bridge
+
+- Status: pending
+- Goal: route ACP permission and ask-user-question callbacks to renderer and
+  resolve responses with timeout cancellation.
+- Files:
+  - `packages/desktop/src/server/acp/permissionBridge.ts`
+  - `packages/desktop/src/server/ws/SessionSocketHub.ts`
+  - `packages/desktop/src/renderer/stores/chatStore.ts`
+- Acceptance criteria:
+  - Permission requests are visible to the active session.
+  - Closing a WS connection cancels pending requests.
+  - Timeout defaults to deny/cancel.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - renderer store tests for allow, deny, and timeout state
+
+### Slice 7: Settings, Auth, Model, and Mode UI
+
+- Status: pending
+- Goal: expose settings/auth/model/mode controls while reusing Qwen Code
+  configuration semantics.
+- Files:
+  - `packages/desktop/src/server/services/settingsService.ts`
+  - `packages/desktop/src/server/services/runtimeService.ts`
+  - `packages/desktop/src/renderer/stores/settingsStore.ts`
+  - `packages/desktop/src/renderer/stores/modelStore.ts`
+- Acceptance criteria:
+  - Settings writes target the existing Qwen settings locations.
+  - Auth actions go through ACP or shared settings writer logic.
+  - Approval mode values remain `plan/default/auto-edit/yolo`.
+- Verification:
+  - `npm run test --workspace=packages/desktop`
+  - temp HOME/QWEN_RUNTIME_DIR settings tests
+
+### Slice 8: Packaging and Smoke Test
+
+- Status: pending
+- Goal: package a desktop app that can launch the bundled CLI ACP child.
+- Files:
+  - `packages/desktop/electron-builder.*`
+  - `scripts/build.js`
+  - `scripts/copy_bundle_assets.js`
+- Acceptance criteria:
+  - Packaged app starts renderer and DesktopServer.
+  - Production ACP launch uses `ELECTRON_RUN_AS_NODE=1`.
+  - Required CLI bundle and native/vendor resources are present.
+- Verification:
+  - `npm run build`
+  - `npm run typecheck`
+  - desktop packaging smoke command
+
+## Decision Log
+
+- 2026-04-25: Use a main-process hosted `DesktopServer` for MVP, matching the
+  architecture recommendation and keeping the HTTP/WS boundary ready for a
+  future `utilityProcess` move.
+- 2026-04-25: Use the latest stable Electron line available during this slice.
+  Electron releases list Electron 41.3.0 with Node.js 24.15.0, satisfying the
+  repository runtime requirement of Node >=20.
+- 2026-04-25: Implement the first server routes with Node built-ins instead of
+  adding Express/Fastify. The current surface is small and this avoids
+  committing to an HTTP framework before the ACP routing shape is known.
+- 2026-04-25: Allow CORS preflight without bearer auth, but only for allowed
+  app origins. Actual REST requests remain bearer-token protected.
+
+## Verification Log
+
+- 2026-04-25 Slice 1:
+  - `npm install --ignore-scripts --workspace=@qwen-code/desktop` passed.
+  - `npx prettier --check design/qwen-code-electron-desktop-implementation-plan.md scripts/build.js packages/desktop` passed.
+  - `npm run lint --workspace=packages/desktop` passed.
+  - `npm run test --workspace=packages/desktop` passed: 1 file, 4 tests.
+  - `npm run typecheck --workspace=packages/desktop` passed.
+  - `npm run build --workspace=packages/desktop` passed.
+  - `npm exec --workspace=packages/desktop -- electron --version` passed:
+    `v41.3.0`.
+  - `npm run typecheck` passed across workspaces.
+  - `npm run build` passed across the configured build order. Existing VS Code
+    companion lint warnings were reported by its build script, with no errors.
+
+## Self Review Notes
+
+- 2026-04-25 Slice 1:
+  - Security boundary checked: renderer uses `nodeIntegration: false`,
+    context isolation, a bundled preload whitelist, and no arbitrary IPC.
+  - Local server checked: binds `127.0.0.1`, generates a random token by
+    default, requires bearer auth for real routes, and rejects non-local
+    origins.
+  - CORS preflight intentionally remains unauthenticated but origin-gated so
+    packaged `file://` and dev `127.0.0.1` renderers can send authorization
+    headers.
+  - Fixed self-review issues before completion: guarded app startup behind the
+    Electron single-instance lock, tightened bearer parsing, and removed unused
+    direct WebSocket dependencies until the WS slice.
+
+## Remaining Work
+
+- Commit Slice 1.
+- Continue with Slice 2 runtime route and typed server error surface.
+- Continue through the ACP, session, WebSocket, permission, settings, and
+  packaging slices until the architecture MVP is fully verified.
diff --git a/package-lock.json b/package-lock.json
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       "dependencies": {
         "esbuild": "^0.21.3",
         "postcss": "^8.4.43",
diff --git a/packages/desktop/package.json b/packages/desktop/package.json
new file mode 100644
index 000000000..72cbb81ba
--- /dev/null
+++ b/packages/desktop/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "@qwen-code/desktop",
+  "version": "0.15.2",
+  "description": "Electron desktop client for Qwen Code",
+  "private": true,
+  "type": "module",
+  "main": "dist/main/main.js",
+  "scripts": {
+    "build": "npm run build:main && npm run build:preload && npm run build:renderer",
+    "build:main": "tsc --project tsconfig.main.json",
+    "build:preload": "esbuild src/preload/index.ts --bundle --platform=node --format=cjs --external:electron --outfile=dist/preload/index.cjs",
+    "build:renderer": "vite build",
+    "dev:renderer": "vite --host 127.0.0.1",
+    "lint": "eslint src --ext .ts,.tsx",
+    "start": "electron .",
+    "test": "vitest run",
+    "typecheck": "tsc --noEmit --project tsconfig.main.json && tsc --noEmit --project tsconfig.renderer.json"
+  },
+  "dependencies": {
+    "@qwen-code/webui": "file:../webui",
+    "react": "^19.1.0",
+    "react-dom": "^19.1.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20.11.24",
+    "@types/react": "^19.1.8",
+    "@types/react-dom": "^19.1.6",
+    "@vitejs/plugin-react": "^4.2.0",
+    "electron": "^41.3.0",
+    "esbuild": "^0.25.0",
+    "typescript": "^5.3.3",
+    "vite": "^5.0.0",
+    "vitest": "^3.2.4"
+  },
+  "engines": {
+    "node": ">=20"
+  }
+}
diff --git a/packages/desktop/src/main/ipc/registerIpc.ts b/packages/desktop/src/main/ipc/registerIpc.ts
new file mode 100644
index 000000000..bacfeba5e
--- /dev/null
+++ b/packages/desktop/src/main/ipc/registerIpc.ts
@@ -0,0 +1,59 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { ipcMain, type BrowserWindow } from 'electron';
+import type { DesktopServerInfo } from '../../shared/desktopApi.js';
+import { IPC_CHANNELS } from '../../shared/ipcChannels.js';
+import { selectDirectory } from '../native/dialogs.js';
+import { openPath, showItemInFolder } from '../native/shell.js';
+
+interface RegisterIpcOptions {
+  getServerInfo(): DesktopServerInfo;
+  getMainWindow(): BrowserWindow | null;
+}
+
+export function registerIpc(options: RegisterIpcOptions): void {
+  ipcMain.handle(IPC_CHANNELS.getServerInfo, () => options.getServerInfo());
+  ipcMain.handle(IPC_CHANNELS.selectDirectory, () =>
+    selectDirectory(options.getMainWindow()),
+  );
+  ipcMain.handle(IPC_CHANNELS.openPath, async (_event, path: unknown) => {
+    await openPath(requireString(path, 'path'));
+  });
+  ipcMain.handle(IPC_CHANNELS.showItemInFolder, (_event, path: unknown) => {
+    showItemInFolder(requireString(path, 'path'));
+  });
+  ipcMain.handle(IPC_CHANNELS.windowMinimize, () => {
+    options.getMainWindow()?.minimize();
+  });
+  ipcMain.handle(IPC_CHANNELS.windowMaximize, () => {
+    const window = options.getMainWindow();
+    if (!window) {
+      return;
+    }
+
+    if (window.isMaximized()) {
+      window.unmaximize();
+    } else {
+      window.maximize();
+    }
+  });
+  ipcMain.handle(IPC_CHANNELS.windowClose, () => {
+    options.getMainWindow()?.close();
+  });
+  ipcMain.handle(
+    IPC_CHANNELS.windowIsMaximized,
+    () => options.getMainWindow()?.isMaximized() ?? false,
+  );
+}
+
+function requireString(value: unknown, label: string): string {
+  if (typeof value !== 'string' || value.length === 0) {
+    throw new TypeError(`${label} must be a non-empty string.`);
+  }
+
+  return value;
+}
diff --git a/packages/desktop/src/main/lifecycle/AppLifecycle.ts b/packages/desktop/src/main/lifecycle/AppLifecycle.ts
new file mode 100644
index 000000000..7bd9f4379
--- /dev/null
+++ b/packages/desktop/src/main/lifecycle/AppLifecycle.ts
@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export function shouldQuitWhenWindowsClosed(
+  platform = process.platform,
+): boolean {
+  return platform !== 'darwin';
+}
diff --git a/packages/desktop/src/main/main.ts b/packages/desktop/src/main/main.ts
new file mode 100644
index 000000000..88fc91764
--- /dev/null
+++ b/packages/desktop/src/main/main.ts
@@ -0,0 +1,113 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { app, BrowserWindow, dialog, session } from 'electron';
+import { shouldQuitWhenWindowsClosed } from './lifecycle/AppLifecycle.js';
+import { registerIpc } from './ipc/registerIpc.js';
+import { createMainWindow } from './windows/MainWindow.js';
+import { startDesktopServer } from '../server/index.js';
+import type { DesktopServer } from '../server/types.js';
+
+let desktopServer: DesktopServer | undefined;
+let mainWindow: BrowserWindow | null = null;
+
+const gotSingleInstanceLock = app.requestSingleInstanceLock();
+if (!gotSingleInstanceLock) {
+  app.quit();
+} else {
+  app.on('second-instance', () => {
+    if (!mainWindow) {
+      return;
+    }
+
+    if (mainWindow.isMinimized()) {
+      mainWindow.restore();
+    }
+    mainWindow.focus();
+  });
+
+  app
+    .whenReady()
+    .then(bootstrap)
+    .catch((error: unknown) => {
+      dialog.showErrorBox(
+        'Qwen Code failed to start',
+        error instanceof Error ? error.message : String(error),
+      );
+      app.exit(1);
+    });
+
+  app.on('activate', () => {
+    if (BrowserWindow.getAllWindows().length === 0) {
+      void createOrFocusMainWindow();
+    }
+  });
+
+  app.on('window-all-closed', () => {
+    if (shouldQuitWhenWindowsClosed()) {
+      app.quit();
+    }
+  });
+
+  app.on('before-quit', () => {
+    void desktopServer?.close();
+  });
+}
+
+async function bootstrap(): Promise<void> {
+  app.setName('Qwen Code');
+  registerContentSecurityPolicy();
+
+  desktopServer = await startDesktopServer();
+  registerIpc({
+    getServerInfo: () => {
+      if (!desktopServer) {
+        throw new Error('Desktop server is not running.');
+      }
+
+      return desktopServer.info;
+    },
+    getMainWindow: () => mainWindow,
+  });
+
+  await createOrFocusMainWindow();
+}
+
+async function createOrFocusMainWindow(): Promise<void> {
+  if (mainWindow) {
+    mainWindow.focus();
+    return;
+  }
+
+  mainWindow = await createMainWindow();
+  mainWindow.on('closed', () => {
+    mainWindow = null;
+  });
+}
+
+function registerContentSecurityPolicy(): void {
+  session.defaultSession.webRequest.onHeadersReceived((details, callback) => {
+    callback({
+      responseHeaders: {
+        ...details.responseHeaders,
+        'Content-Security-Policy': [createContentSecurityPolicy()],
+      },
+    });
+  });
+}
+
+function createContentSecurityPolicy(): string {
+  return [
+    "default-src 'self'",
+    "script-src 'self'",
+    "style-src 'self' 'unsafe-inline'",
+    "img-src 'self' data:",
+    "font-src 'self' data:",
+    "connect-src 'self' http://127.0.0.1:* ws://127.0.0.1:*",
+    "object-src 'none'",
+    "base-uri 'self'",
+  ].join('; ');
+}
diff --git a/packages/desktop/src/main/native/dialogs.ts b/packages/desktop/src/main/native/dialogs.ts
new file mode 100644
index 000000000..e18738036
--- /dev/null
+++ b/packages/desktop/src/main/native/dialogs.ts
@@ -0,0 +1,24 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { dialog, type BrowserWindow, type OpenDialogOptions } from 'electron';
+
+export async function selectDirectory(
+  owner: BrowserWindow | null,
+): Promise<string | null> {
+  const options: OpenDialogOptions = {
+    properties: ['openDirectory', 'createDirectory'],
+  };
+  const result = owner
+    ? await dialog.showOpenDialog(owner, options)
+    : await dialog.showOpenDialog(options);
+
+  if (result.canceled || result.filePaths.length === 0) {
+    return null;
+  }
+
+  return result.filePaths[0] ?? null;
+}
diff --git a/packages/desktop/src/main/native/shell.ts b/packages/desktop/src/main/native/shell.ts
new file mode 100644
index 000000000..1bb7a6a79
--- /dev/null
+++ b/packages/desktop/src/main/native/shell.ts
@@ -0,0 +1,35 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { shell } from 'electron';
+
+export async function openPath(path: string): Promise<void> {
+  const errorMessage = await shell.openPath(path);
+  if (errorMessage) {
+    throw new Error(errorMessage);
+  }
+}
+
+export function showItemInFolder(path: string): void {
+  shell.showItemInFolder(path);
+}
+
+export async function openExternalUrl(url: string): Promise<void> {
+  if (!isAllowedExternalUrl(url)) {
+    throw new Error('External URL scheme is not allowed.');
+  }
+
+  await shell.openExternal(url);
+}
+
+function isAllowedExternalUrl(url: string): boolean {
+  try {
+    const parsed = new URL(url);
+    return parsed.protocol === 'https:' || parsed.protocol === 'http:';
+  } catch {
+    return false;
+  }
+}
diff --git a/packages/desktop/src/main/windows/MainWindow.ts b/packages/desktop/src/main/windows/MainWindow.ts
new file mode 100644
index 000000000..b5328f6f6
--- /dev/null
+++ b/packages/desktop/src/main/windows/MainWindow.ts
@@ -0,0 +1,51 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { BrowserWindow } from 'electron';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { openExternalUrl } from '../native/shell.js';
+
+const mainDir = dirname(fileURLToPath(import.meta.url));
+const preloadPath = join(mainDir, '../preload/index.cjs');
+const rendererIndexPath = join(mainDir, '../renderer/index.html');
+
+export async function createMainWindow(): Promise<BrowserWindow> {
+  const mainWindow = new BrowserWindow({
+    width: 1240,
+    height: 820,
+    minWidth: 960,
+    minHeight: 640,
+    title: 'Qwen Code',
+    backgroundColor: '#101214',
+    show: false,
+    webPreferences: {
+      contextIsolation: true,
+      nodeIntegration: false,
+      preload: preloadPath,
+      sandbox: false,
+      webSecurity: true,
+    },
+  });
+
+  mainWindow.once('ready-to-show', () => {
+    mainWindow.show();
+  });
+
+  mainWindow.webContents.setWindowOpenHandler(({ url }) => {
+    void openExternalUrl(url);
+    return { action: 'deny' };
+  });
+
+  const rendererUrl = process.env['QWEN_DESKTOP_RENDERER_URL'];
+  if (rendererUrl) {
+    await mainWindow.loadURL(rendererUrl);
+  } else {
+    await mainWindow.loadFile(rendererIndexPath);
+  }
+
+  return mainWindow;
+}
diff --git a/packages/desktop/src/preload/index.ts b/packages/desktop/src/preload/index.ts
new file mode 100644
index 000000000..5db4210da
--- /dev/null
+++ b/packages/desktop/src/preload/index.ts
@@ -0,0 +1,42 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { contextBridge, ipcRenderer } from 'electron';
+import type {
+  DesktopServerInfo,
+  QwenDesktopApi,
+} from '../shared/desktopApi.js';
+import { IPC_CHANNELS } from '../shared/ipcChannels.js';
+
+const api: QwenDesktopApi = {
+  getServerInfo: () =>
+    ipcRenderer.invoke(
+      IPC_CHANNELS.getServerInfo,
+    ) as Promise<DesktopServerInfo>,
+  selectDirectory: () =>
+    ipcRenderer.invoke(IPC_CHANNELS.selectDirectory) as Promise<string | null>,
+  openPath: async (path: string) => {
+    await ipcRenderer.invoke(IPC_CHANNELS.openPath, path);
+  },
+  showItemInFolder: async (path: string) => {
+    await ipcRenderer.invoke(IPC_CHANNELS.showItemInFolder, path);
+  },
+  window: {
+    minimize: async () => {
+      await ipcRenderer.invoke(IPC_CHANNELS.windowMinimize);
+    },
+    maximize: async () => {
+      await ipcRenderer.invoke(IPC_CHANNELS.windowMaximize);
+    },
+    close: async () => {
+      await ipcRenderer.invoke(IPC_CHANNELS.windowClose);
+    },
+    isMaximized: () =>
+      ipcRenderer.invoke(IPC_CHANNELS.windowIsMaximized) as Promise<boolean>,
+  },
+};
+
+contextBridge.exposeInMainWorld('qwenDesktop', api);
diff --git a/packages/desktop/src/renderer/App.tsx b/packages/desktop/src/renderer/App.tsx
new file mode 100644
index 000000000..4f9e88386
--- /dev/null
+++ b/packages/desktop/src/renderer/App.tsx
@@ -0,0 +1,145 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { useEffect, useMemo, useState } from 'react';
+import {
+  loadDesktopStatus,
+  type DesktopConnectionStatus,
+} from './api/client.js';
+
+type LoadState =
+  | { state: 'loading' }
+  | { state: 'ready'; status: DesktopConnectionStatus }
+  | { state: 'error'; message: string };
+
+export function App() {
+  const [loadState, setLoadState] = useState<LoadState>({ state: 'loading' });
+
+  useEffect(() => {
+    let disposed = false;
+
+    const load = async () => {
+      try {
+        const status = await loadDesktopStatus();
+        if (!disposed) {
+          setLoadState({ state: 'ready', status });
+        }
+      } catch (error) {
+        if (!disposed) {
+          setLoadState({
+            state: 'error',
+            message:
+              error instanceof Error
+                ? error.message
+                : 'Unable to reach desktop service.',
+          });
+        }
+      }
+    };
+
+    void load();
+
+    return () => {
+      disposed = true;
+    };
+  }, []);
+
+  const statusLabel = useMemo(() => {
+    if (loadState.state === 'ready') {
+      return 'Connected';
+    }
+
+    if (loadState.state === 'error') {
+      return 'Offline';
+    }
+
+    return 'Starting';
+  }, [loadState]);
+
+  return (
+    <main className="desktop-shell">
+      <aside className="sidebar" aria-label="Sessions">
+        <div className="brand-lockup">
+          <div className="brand-mark" aria-hidden="true">
+            Q
+          </div>
+          <div>
+            <h1>Qwen Code</h1>
+            <p>Desktop</p>
+          </div>
+        </div>
+
+        <section className="sidebar-section">
+          <h2>Workspace</h2>
+          <div className="empty-row">No folder selected</div>
+        </section>
+
+        <section className="sidebar-section sidebar-section-fill">
+          <h2>Sessions</h2>
+          <div className="empty-row">No sessions</div>
+        </section>
+      </aside>
+
+      <section className="workbench" aria-label="Workbench">
+        <header className="topbar">
+          <div>
+            <p className="eyebrow">Local service</p>
+            <h2>{statusLabel}</h2>
+          </div>
+          <StatusPill state={loadState.state} />
+        </header>
+
+        <div className="workspace-grid">
+          <section className="panel panel-main">
+            <div className="panel-header">
+              <h3>Conversation</h3>
+              <span>Idle</span>
+            </div>
+            <div className="conversation-empty">No session selected</div>
+          </section>
+
+          <section className="panel panel-side">
+            <div className="panel-header">
+              <h3>Runtime</h3>
+            </div>
+            <RuntimeDetails loadState={loadState} />
+          </section>
+        </div>
+      </section>
+    </main>
+  );
+}
+
+function StatusPill({ state }: { state: LoadState['state'] }) {
+  return <span className={`status-pill status-pill-${state}`}>{state}</span>;
+}
+
+function RuntimeDetails({ loadState }: { loadState: LoadState }) {
+  if (loadState.state === 'loading') {
+    return <div className="runtime-row muted">Checking service</div>;
+  }
+
+  if (loadState.state === 'error') {
+    return <div className="runtime-row error-text">{loadState.message}</div>;
+  }
+
+  return (
+    <dl className="runtime-details">
+      <div>
+        <dt>Server</dt>
+        <dd>{loadState.status.serverUrl}</dd>
+      </div>
+      <div>
+        <dt>Health</dt>
+        <dd>{loadState.status.health.service}</dd>
+      </div>
+      <div>
+        <dt>Uptime</dt>
+        <dd>{loadState.status.health.uptimeMs} ms</dd>
+      </div>
+    </dl>
+  );
+}
diff --git a/packages/desktop/src/renderer/api/client.ts b/packages/desktop/src/renderer/api/client.ts
new file mode 100644
index 000000000..171b079cd
--- /dev/null
+++ b/packages/desktop/src/renderer/api/client.ts
@@ -0,0 +1,61 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type { DesktopServerInfo } from '../../shared/desktopApi.js';
+
+export interface DesktopHealth {
+  ok: true;
+  service: 'qwen-desktop';
+  uptimeMs: number;
+  timestamp: string;
+}
+
+export interface DesktopConnectionStatus {
+  serverUrl: string;
+  health: DesktopHealth;
+}
+
+export async function loadDesktopStatus(): Promise<DesktopConnectionStatus> {
+  const serverInfo = await getServerInfo();
+  const healthUrl = new URL('/health', serverInfo.url);
+  const response = await fetch(healthUrl, {
+    headers: {
+      Authorization: `Bearer ${serverInfo.token}`,
+    },
+  });
+  const payload = (await response.json()) as unknown;
+
+  if (!response.ok || !isDesktopHealth(payload)) {
+    throw new Error('Desktop service health check failed.');
+  }
+
+  return {
+    serverUrl: serverInfo.url,
+    health: payload,
+  };
+}
+
+async function getServerInfo(): Promise<DesktopServerInfo> {
+  if (!window.qwenDesktop) {
+    throw new Error('Desktop preload API is unavailable.');
+  }
+
+  return window.qwenDesktop.getServerInfo();
+}
+
+function isDesktopHealth(value: unknown): value is DesktopHealth {
+  if (!value || typeof value !== 'object') {
+    return false;
+  }
+
+  const candidate = value as Partial<DesktopHealth>;
+  return (
+    candidate.ok === true &&
+    candidate.service === 'qwen-desktop' &&
+    typeof candidate.uptimeMs === 'number' &&
+    typeof candidate.timestamp === 'string'
+  );
+}
diff --git a/packages/desktop/src/renderer/index.html b/packages/desktop/src/renderer/index.html
new file mode 100644
index 000000000..70074cdd8
--- /dev/null
+++ b/packages/desktop/src/renderer/index.html
@@ -0,0 +1,12 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Qwen Code</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/main.tsx"></script>
+  </body>
+</html>
diff --git a/packages/desktop/src/renderer/main.tsx b/packages/desktop/src/renderer/main.tsx
new file mode 100644
index 000000000..7817e314c
--- /dev/null
+++ b/packages/desktop/src/renderer/main.tsx
@@ -0,0 +1,21 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import React from 'react';
+import { createRoot } from 'react-dom/client';
+import { App } from './App.js';
+import './styles.css';
+
+const rootElement = document.getElementById('root');
+if (!rootElement) {
+  throw new Error('Renderer root element was not found.');
+}
+
+createRoot(rootElement).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);
diff --git a/packages/desktop/src/renderer/styles.css b/packages/desktop/src/renderer/styles.css
new file mode 100644
index 000000000..55b5b74cd
--- /dev/null
+++ b/packages/desktop/src/renderer/styles.css
@@ -0,0 +1,264 @@
+* {
+  box-sizing: border-box;
+}
+
+:root {
+  color: #eef0ed;
+  background: #101214;
+  font-family:
+    ui-sans-serif,
+    -apple-system,
+    BlinkMacSystemFont,
+    'Segoe UI',
+    sans-serif;
+}
+
+body {
+  min-width: 320px;
+  min-height: 100vh;
+  margin: 0;
+  background:
+    linear-gradient(135deg, rgba(48, 77, 64, 0.28), transparent 38%),
+    linear-gradient(180deg, #17191b 0%, #101214 100%);
+}
+
+button,
+input,
+textarea {
+  font: inherit;
+}
+
+#root {
+  min-height: 100vh;
+}
+
+.desktop-shell {
+  display: grid;
+  grid-template-columns: 280px minmax(0, 1fr);
+  min-height: 100vh;
+}
+
+.sidebar {
+  display: flex;
+  flex-direction: column;
+  gap: 22px;
+  min-width: 0;
+  padding: 22px;
+  border-right: 1px solid rgba(238, 240, 237, 0.09);
+  background: rgba(18, 20, 21, 0.92);
+}
+
+.brand-lockup {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  min-height: 48px;
+}
+
+.brand-mark {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  place-items: center;
+  border: 1px solid rgba(238, 240, 237, 0.16);
+  background: #e7bd73;
+  color: #161311;
+  font-weight: 800;
+}
+
+.brand-lockup h1,
+.brand-lockup p,
+.topbar h2,
+.topbar p,
+.panel h3 {
+  margin: 0;
+}
+
+.brand-lockup h1 {
+  font-size: 17px;
+  font-weight: 750;
+}
+
+.brand-lockup p,
+.eyebrow {
+  color: #9ca39b;
+  font-size: 12px;
+  letter-spacing: 0;
+  text-transform: uppercase;
+}
+
+.sidebar-section {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.sidebar-section-fill {
+  flex: 1;
+}
+
+.sidebar-section h2 {
+  margin: 0;
+  color: #b7bdb6;
+  font-size: 12px;
+  font-weight: 700;
+  letter-spacing: 0;
+  text-transform: uppercase;
+}
+
+.empty-row {
+  min-height: 42px;
+  padding: 12px;
+  border: 1px solid rgba(238, 240, 237, 0.09);
+  color: #858c84;
+  font-size: 13px;
+}
+
+.workbench {
+  display: flex;
+  min-width: 0;
+  flex-direction: column;
+  padding: 24px;
+}
+
+.topbar {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  min-height: 64px;
+  padding-bottom: 22px;
+}
+
+.topbar h2 {
+  font-size: 28px;
+  font-weight: 760;
+}
+
+.status-pill {
+  min-width: 86px;
+  padding: 7px 10px;
+  border: 1px solid rgba(238, 240, 237, 0.12);
+  color: #d8dcd6;
+  font-size: 12px;
+  font-weight: 700;
+  text-align: center;
+  text-transform: uppercase;
+}
+
+.status-pill-ready {
+  border-color: rgba(99, 214, 157, 0.45);
+  color: #96e6ba;
+}
+
+.status-pill-error {
+  border-color: rgba(235, 111, 91, 0.55);
+  color: #ff9a84;
+}
+
+.workspace-grid {
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) 320px;
+  gap: 18px;
+  min-height: 0;
+  flex: 1;
+}
+
+.panel {
+  min-width: 0;
+  border: 1px solid rgba(238, 240, 237, 0.1);
+  background: rgba(20, 23, 23, 0.74);
+}
+
+.panel-main {
+  display: flex;
+  min-height: 520px;
+  flex-direction: column;
+}
+
+.panel-side {
+  min-height: 240px;
+}
+
+.panel-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  min-height: 48px;
+  padding: 0 16px;
+  border-bottom: 1px solid rgba(238, 240, 237, 0.08);
+}
+
+.panel-header h3 {
+  font-size: 14px;
+  font-weight: 750;
+}
+
+.panel-header span {
+  color: #858c84;
+  font-size: 12px;
+}
+
+.conversation-empty {
+  display: grid;
+  flex: 1;
+  min-height: 260px;
+  place-items: center;
+  color: #858c84;
+  font-size: 14px;
+}
+
+.runtime-row,
+.runtime-details {
+  padding: 16px;
+}
+
+.runtime-details {
+  display: grid;
+  gap: 14px;
+  margin: 0;
+}
+
+.runtime-details div {
+  display: grid;
+  gap: 4px;
+  min-width: 0;
+}
+
+.runtime-details dt {
+  color: #9ca39b;
+  font-size: 12px;
+  font-weight: 700;
+  text-transform: uppercase;
+}
+
+.runtime-details dd {
+  min-width: 0;
+  margin: 0;
+  overflow-wrap: anywhere;
+  color: #eef0ed;
+  font-size: 13px;
+}
+
+.muted {
+  color: #858c84;
+}
+
+.error-text {
+  color: #ff9a84;
+}
+
+@media (max-width: 860px) {
+  .desktop-shell {
+    grid-template-columns: 1fr;
+  }
+
+  .sidebar {
+    border-right: 0;
+    border-bottom: 1px solid rgba(238, 240, 237, 0.09);
+  }
+
+  .workspace-grid {
+    grid-template-columns: 1fr;
+  }
+}
diff --git a/packages/desktop/src/renderer/vite-env.d.ts b/packages/desktop/src/renderer/vite-env.d.ts
new file mode 100644
index 000000000..3cb0fbfc1
--- /dev/null
+++ b/packages/desktop/src/renderer/vite-env.d.ts
@@ -0,0 +1,11 @@
+/// <reference types="vite/client" />
+
+import type { QwenDesktopApi } from '../shared/desktopApi';
+
+declare global {
+  interface Window {
+    qwenDesktop: QwenDesktopApi;
+  }
+}
+
+export {};
diff --git a/packages/desktop/src/server/http/auth.ts b/packages/desktop/src/server/http/auth.ts
new file mode 100644
index 000000000..12409cc32
--- /dev/null
+++ b/packages/desktop/src/server/http/auth.ts
@@ -0,0 +1,93 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { randomBytes, timingSafeEqual } from 'node:crypto';
+import type { IncomingHttpHeaders } from 'node:http';
+
+const LOCAL_HTTP_ORIGIN = /^http:\/\/(?:127\.0\.0\.1|localhost):\d+$/u;
+
+export function createServerToken(): string {
+  return randomBytes(32).toString('base64url');
+}
+
+export function getSingleHeader(
+  value: string | string[] | undefined,
+): string | undefined {
+  if (Array.isArray(value)) {
+    return value[0];
+  }
+
+  return value;
+}
+
+export function getBearerToken(
+  authorization: string | string[] | undefined,
+): string | undefined {
+  const header = getSingleHeader(authorization);
+  if (!header) {
+    return undefined;
+  }
+
+  const parts = header.trim().split(/\s+/u);
+  if (parts.length !== 2) {
+    return undefined;
+  }
+
+  const [scheme, token] = parts;
+  if (scheme?.toLowerCase() !== 'bearer' || !token) {
+    return undefined;
+  }
+
+  return token;
+}
+
+export function isAuthorized(
+  headers: IncomingHttpHeaders,
+  expectedToken: string,
+): boolean {
+  const token = getBearerToken(headers.authorization);
+  if (!token) {
+    return false;
+  }
+
+  return safeEqual(token, expectedToken);
+}
+
+export function isAllowedOrigin(origin: string | undefined): boolean {
+  if (!origin || origin === 'null' || origin.startsWith('file://')) {
+    return true;
+  }
+
+  return LOCAL_HTTP_ORIGIN.test(origin);
+}
+
+export function createCorsHeaders(
+  origin: string | undefined,
+): Record<string, string> {
+  const headers: Record<string, string> = {
+    'Access-Control-Allow-Headers': 'authorization, content-type',
+    'Access-Control-Allow-Methods': 'GET, POST, PUT, PATCH, DELETE, OPTIONS',
+    'Access-Control-Max-Age': '600',
+    Vary: 'Origin',
+  };
+
+  if (origin && isAllowedOrigin(origin)) {
+    headers['Access-Control-Allow-Origin'] = origin;
+  }
+
+  return headers;
+}
+
+function safeEqual(left: string, right: string): boolean {
+  const leftBuffer = Buffer.from(left);
+  const rightBuffer = Buffer.from(right);
+
+  if (leftBuffer.length !== rightBuffer.length) {
+    return false;
+  }
+
+  return timingSafeEqual(leftBuffer, rightBuffer);
+}
diff --git a/packages/desktop/src/server/index.test.ts b/packages/desktop/src/server/index.test.ts
new file mode 100644
index 000000000..8b7573b51
--- /dev/null
+++ b/packages/desktop/src/server/index.test.ts
@@ -0,0 +1,110 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { afterEach, describe, expect, it } from 'vitest';
+import { startDesktopServer } from './index.js';
+import type { DesktopServer } from './types.js';
+
+const servers: DesktopServer[] = [];
+
+afterEach(async () => {
+  await Promise.all(servers.splice(0).map((server) => server.close()));
+});
+
+describe('DesktopServer', () => {
+  it('binds to localhost and serves authenticated health checks', async () => {
+    const server = await createTestServer();
+
+    expect(server.info.url).toMatch(/^http:\/\/127\.0\.0\.1:\d+$/u);
+    expect(server.info.token).toBe('test-token');
+
+    const unauthorized = await getJson(server, '/health');
+    expect(unauthorized.status).toBe(401);
+    expect(unauthorized.body).toMatchObject({
+      ok: false,
+      code: 'unauthorized',
+    });
+
+    const authorized = await getJson(server, '/health', {
+      Authorization: 'Bearer test-token',
+    });
+    expect(authorized.status).toBe(200);
+    expect(authorized.body).toMatchObject({
+      ok: true,
+      service: 'qwen-desktop',
+    });
+  });
+
+  it('rejects non-local origins before token checks', async () => {
+    const server = await createTestServer();
+
+    const response = await getJson(server, '/health', {
+      Authorization: 'Bearer test-token',
+      Origin: 'https://example.com',
+    });
+
+    expect(response.status).toBe(403);
+    expect(response.body).toMatchObject({
+      ok: false,
+      code: 'origin_forbidden',
+    });
+  });
+
+  it('allows app preflight requests without exposing the route', async () => {
+    const server = await createTestServer();
+
+    const response = await fetch(`${server.info.url}/health`, {
+      method: 'OPTIONS',
+      headers: {
+        Origin: 'http://127.0.0.1:5173',
+        'Access-Control-Request-Headers': 'authorization',
+      },
+    });
+
+    expect(response.status).toBe(204);
+    expect(response.headers.get('access-control-allow-origin')).toBe(
+      'http://127.0.0.1:5173',
+    );
+    expect(response.headers.get('access-control-allow-headers')).toContain(
+      'authorization',
+    );
+  });
+
+  it('returns a typed error for unknown authenticated routes', async () => {
+    const server = await createTestServer();
+
+    const response = await getJson(server, '/api/missing', {
+      Authorization: 'Bearer test-token',
+    });
+
+    expect(response.status).toBe(404);
+    expect(response.body).toMatchObject({
+      ok: false,
+      code: 'not_found',
+    });
+  });
+});
+
+async function createTestServer(): Promise<DesktopServer> {
+  const server = await startDesktopServer({
+    token: 'test-token',
+    now: () => new Date('2026-04-25T00:00:00.000Z'),
+  });
+  servers.push(server);
+  return server;
+}
+
+async function getJson(
+  server: DesktopServer,
+  path: string,
+  headers: Record<string, string> = {},
+): Promise<{ status: number; body: unknown }> {
+  const response = await fetch(`${server.info.url}${path}`, { headers });
+  return {
+    status: response.status,
+    body: (await response.json()) as unknown,
+  };
+}
diff --git a/packages/desktop/src/server/index.ts b/packages/desktop/src/server/index.ts
new file mode 100644
index 000000000..38e0ee443
--- /dev/null
+++ b/packages/desktop/src/server/index.ts
@@ -0,0 +1,173 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {
+  createServer,
+  type IncomingMessage,
+  type ServerResponse,
+} from 'node:http';
+import type { AddressInfo } from 'node:net';
+import {
+  createCorsHeaders,
+  createServerToken,
+  getSingleHeader,
+  isAllowedOrigin,
+  isAuthorized,
+} from './http/auth.js';
+import type {
+  DesktopErrorResponse,
+  DesktopHealthResponse,
+  DesktopServer,
+  DesktopServerOptions,
+} from './types.js';
+
+interface HandlerContext {
+  token: string;
+  startedAt: number;
+  now: () => Date;
+}
+
+export async function startDesktopServer(
+  options: DesktopServerOptions = {},
+): Promise<DesktopServer> {
+  const token = options.token ?? createServerToken();
+  const now = options.now ?? (() => new Date());
+  const startedAt = now().getTime();
+  const server = createServer((request, response) => {
+    handleRequest(request, response, { token, startedAt, now });
+  });
+
+  await new Promise<void>((resolve, reject) => {
+    const handleError = (error: Error) => {
+      server.off('listening', handleListening);
+      reject(error);
+    };
+    const handleListening = () => {
+      server.off('error', handleError);
+      resolve();
+    };
+
+    server.once('error', handleError);
+    server.once('listening', handleListening);
+    server.listen(0, '127.0.0.1');
+  });
+
+  const address = server.address();
+  if (!isAddressInfo(address)) {
+    await closeHttpServer(server);
+    throw new Error('Desktop server did not bind to a TCP address.');
+  }
+
+  return {
+    info: {
+      url: `http://127.0.0.1:${address.port}`,
+      token,
+    },
+    close: () => closeHttpServer(server),
+  };
+}
+
+function handleRequest(
+  request: IncomingMessage,
+  response: ServerResponse,
+  context: HandlerContext,
+) {
+  const origin = getSingleHeader(request.headers.origin);
+  if (!isAllowedOrigin(origin)) {
+    sendJson(response, origin, 403, {
+      ok: false,
+      code: 'origin_forbidden',
+      message: 'Request origin is not allowed.',
+    });
+    return;
+  }
+
+  if (request.method === 'OPTIONS') {
+    response.writeHead(204, createCorsHeaders(origin));
+    response.end();
+    return;
+  }
+
+  if (!isAuthorized(request.headers, context.token)) {
+    sendJson(response, origin, 401, {
+      ok: false,
+      code: 'unauthorized',
+      message: 'Missing or invalid desktop server token.',
+    });
+    return;
+  }
+
+  const requestUrl = parseRequestUrl(request);
+  if (!requestUrl) {
+    sendJson(response, origin, 400, {
+      ok: false,
+      code: 'bad_request',
+      message: 'Request URL is invalid.',
+    });
+    return;
+  }
+
+  if (request.method === 'GET' && requestUrl.pathname === '/health') {
+    sendJson(response, origin, 200, {
+      ok: true,
+      service: 'qwen-desktop',
+      uptimeMs: Math.max(0, context.now().getTime() - context.startedAt),
+      timestamp: context.now().toISOString(),
+    });
+    return;
+  }
+
+  sendJson(response, origin, 404, {
+    ok: false,
+    code: 'not_found',
+    message: 'Route not found.',
+  });
+}
+
+function parseRequestUrl(request: IncomingMessage): URL | undefined {
+  try {
+    return new URL(request.url ?? '/', 'http://127.0.0.1');
+  } catch {
+    return undefined;
+  }
+}
+
+function sendJson(
+  response: ServerResponse,
+  origin: string | undefined,
+  statusCode: number,
+  payload: DesktopHealthResponse | DesktopErrorResponse,
+) {
+  response.writeHead(statusCode, {
+    ...createCorsHeaders(origin),
+    'Content-Type': 'application/json; charset=utf-8',
+  });
+  response.end(`${JSON.stringify(payload)}\n`);
+}
+
+function isAddressInfo(
+  address: string | AddressInfo | null,
+): address is AddressInfo {
+  return typeof address === 'object' && address !== null;
+}
+
+async function closeHttpServer(
+  server: ReturnType<typeof createServer>,
+): Promise<void> {
+  if (!server.listening) {
+    return;
+  }
+
+  await new Promise<void>((resolve, reject) => {
+    server.close((error) => {
+      if (error) {
+        reject(error);
+      } else {
+        resolve();
+      }
+    });
+  });
+}
diff --git a/packages/desktop/src/server/types.ts b/packages/desktop/src/server/types.ts
new file mode 100644
index 000000000..f3c6119d4
--- /dev/null
+++ b/packages/desktop/src/server/types.ts
@@ -0,0 +1,32 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type { DesktopServerInfo } from '../shared/desktopApi.js';
+
+export type { DesktopServerInfo };
+
+export interface DesktopServer {
+  info: DesktopServerInfo;
+  close(): Promise<void>;
+}
+
+export interface DesktopServerOptions {
+  token?: string;
+  now?: () => Date;
+}
+
+export interface DesktopHealthResponse {
+  ok: true;
+  service: 'qwen-desktop';
+  uptimeMs: number;
+  timestamp: string;
+}
+
+export interface DesktopErrorResponse {
+  ok: false;
+  code: string;
+  message: string;
+}
diff --git a/packages/desktop/src/shared/desktopApi.ts b/packages/desktop/src/shared/desktopApi.ts
new file mode 100644
index 000000000..57dfe50b7
--- /dev/null
+++ b/packages/desktop/src/shared/desktopApi.ts
@@ -0,0 +1,25 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export interface DesktopServerInfo {
+  url: string;
+  token: string;
+}
+
+export interface DesktopWindowApi {
+  minimize(): Promise<void>;
+  maximize(): Promise<void>;
+  close(): Promise<void>;
+  isMaximized(): Promise<boolean>;
+}
+
+export interface QwenDesktopApi {
+  getServerInfo(): Promise<DesktopServerInfo>;
+  selectDirectory(): Promise<string | null>;
+  openPath(path: string): Promise<void>;
+  showItemInFolder(path: string): Promise<void>;
+  window: DesktopWindowApi;
+}
diff --git a/packages/desktop/src/shared/ipcChannels.ts b/packages/desktop/src/shared/ipcChannels.ts
new file mode 100644
index 000000000..dcf6964a8
--- /dev/null
+++ b/packages/desktop/src/shared/ipcChannels.ts
@@ -0,0 +1,16 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+export const IPC_CHANNELS = {
+  getServerInfo: 'qwen-desktop:get-server-info',
+  selectDirectory: 'qwen-desktop:select-directory',
+  openPath: 'qwen-desktop:open-path',
+  showItemInFolder: 'qwen-desktop:show-item-in-folder',
+  windowMinimize: 'qwen-desktop:window:minimize',
+  windowMaximize: 'qwen-desktop:window:maximize',
+  windowClose: 'qwen-desktop:window:close',
+  windowIsMaximized: 'qwen-desktop:window:is-maximized',
+} as const;
diff --git a/packages/desktop/tsconfig.json b/packages/desktop/tsconfig.json
new file mode 100644
index 000000000..ada446967
--- /dev/null
+++ b/packages/desktop/tsconfig.json
@@ -0,0 +1,11 @@
+{
+  "files": [],
+  "references": [
+    {
+      "path": "./tsconfig.main.json"
+    },
+    {
+      "path": "./tsconfig.renderer.json"
+    }
+  ]
+}
diff --git a/packages/desktop/tsconfig.main.json b/packages/desktop/tsconfig.main.json
new file mode 100644
index 000000000..152658bb9
--- /dev/null
+++ b/packages/desktop/tsconfig.main.json
@@ -0,0 +1,20 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "composite": false,
+    "declaration": false,
+    "declarationMap": false,
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "outDir": "dist",
+    "rootDir": "src",
+    "types": ["node", "vitest/globals"]
+  },
+  "include": [
+    "src/main/**/*.ts",
+    "src/preload/**/*.ts",
+    "src/server/**/*.ts",
+    "src/shared/**/*.ts"
+  ],
+  "exclude": ["**/*.test.ts", "dist", "node_modules"]
+}
diff --git a/packages/desktop/tsconfig.renderer.json b/packages/desktop/tsconfig.renderer.json
new file mode 100644
index 000000000..2ad4e2bb3
--- /dev/null
+++ b/packages/desktop/tsconfig.renderer.json
@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "useDefineForClassFields": true,
+    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "skipLibCheck": true,
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx",
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "include": ["src/renderer", "src/shared/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}
diff --git a/packages/desktop/vite.config.ts b/packages/desktop/vite.config.ts
new file mode 100644
index 000000000..e1b0eb6c2
--- /dev/null
+++ b/packages/desktop/vite.config.ts
@@ -0,0 +1,25 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { fileURLToPath } from 'node:url';
+import { dirname, resolve } from 'node:path';
+import react from '@vitejs/plugin-react';
+import { defineConfig } from 'vite';
+
+const packageRoot = dirname(fileURLToPath(import.meta.url));
+
+export default defineConfig({
+  root: resolve(packageRoot, 'src/renderer'),
+  plugins: [react()],
+  build: {
+    outDir: resolve(packageRoot, 'dist/renderer'),
+    emptyOutDir: true,
+    sourcemap: true,
+  },
+  server: {
+    host: '127.0.0.1',
+  },
+});
diff --git a/packages/desktop/vitest.config.ts b/packages/desktop/vitest.config.ts
new file mode 100644
index 000000000..3a234b833
--- /dev/null
+++ b/packages/desktop/vitest.config.ts
@@ -0,0 +1,15 @@
+/**
+ * @license
+ * Copyright 2026 Qwen Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    environment: 'node',
+    include: ['src/**/*.test.ts'],
+    restoreMocks: true,
+  },
+});
diff --git a/scripts/build.js b/scripts/build.js
index f471bf25e..eb4ee42ec 100644
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -42,6 +42,7 @@ execSync('npm run generate', { stdio: 'inherit', cwd: root });
 // 6. webui (shared UI components - used by vscode companion)
 // 7. sdk (no internal dependencies)
 // 8. vscode-ide-companion (depends on webui)
+// 9. desktop (depends on webui and launches the built CLI in later slices)
 const buildOrder = [
   'packages/core',
   'packages/web-templates',
@@ -54,6 +55,7 @@ const buildOrder = [
   'packages/webui',
   'packages/sdk-typescript',
   'packages/vscode-ide-companion',
+  'packages/desktop',
 ];
 
 for (const workspace of buildOrder) {