feat(cli): add deep work mode with integrated execution flow

packages/cli/src/ui/commands/deepworkCommand.ts

@@ -0,0 +1,47 @@
+/**
+ * @license
+ * Copyright 2026 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { CommandKind, type SlashCommand } from './types.js';
+import { ApprovalMode, coreEvents, debugLogger } from '@google/gemini-cli-core';
+
+export const deepworkCommand: SlashCommand = {
+  name: 'deepwork',
+  description: 'Switch to Deep Work mode for iterative execution',
+  kind: CommandKind.BUILT_IN,
+  autoExecute: true,
+  action: async (context) => {
+    const config = context.services.config;
+    if (!config) {
+      debugLogger.debug(
+        'Deep Work command: config is not available in context',
+      );
+      return;
+    }
+
+    if (!config.isDeepWorkEnabled()) {
+      coreEvents.emitFeedback(
+        'error',
+        'Deep Work mode is disabled. Enable experimental.deepWork in settings first.',
+      );
+      return;
+    }
+
+    const previousApprovalMode = config.getApprovalMode();
+    config.setApprovalMode(ApprovalMode.DEEP_WORK);
+
+    if (previousApprovalMode !== ApprovalMode.DEEP_WORK) {
+      coreEvents.emitFeedback('info', 'Switched to Deep Work mode.');
+    }
+
+    const approvedPlanPath = config.getApprovedPlanPath();
+    if (approvedPlanPath) {
+      coreEvents.emitFeedback(
+        'info',
+        `Deep Work will follow approved plan: ${approvedPlanPath}`,
+      );
+    }
+  },
+};