feat: subagent phase 2 implementation

packages/cli/src/ui/hooks/slashCommandProcessor.test.ts

@@ -144,8 +144,10 @@ describe('useSlashCommandProcessor', () => {
         mockSetQuittingMessages,
         vi.fn(), // openPrivacyNotice
         vi.fn(), // openSettingsDialog
+        vi.fn(), // openSubagentCreateDialog
         vi.fn(), // toggleVimEnabled
         setIsProcessing,
+        vi.fn(), // setGeminiMdFileCount
       ),
     );
 
@@ -894,11 +896,11 @@ describe('useSlashCommandProcessor', () => {
           vi.fn(), // toggleCorgiMode
           mockSetQuittingMessages,
           vi.fn(), // openPrivacyNotice
-
           vi.fn(), // openSettingsDialog
+          vi.fn(), // openSubagentCreateDialog
           vi.fn(), // toggleVimEnabled
-          vi.fn().mockResolvedValue(false), // toggleVimEnabled
           vi.fn(), // setIsProcessing
+          vi.fn(), // setGeminiMdFileCount
         ),
       );
 

packages/cli/src/ui/hooks/slashCommandProcessor.ts

@@ -51,6 +51,7 @@ export const useSlashCommandProcessor = (
   setQuittingMessages: (message: HistoryItem[]) => void,
   openPrivacyNotice: () => void,
   openSettingsDialog: () => void,
+  openSubagentCreateDialog: () => void,
   toggleVimEnabled: () => Promise<boolean>,
   setIsProcessing: (isProcessing: boolean) => void,
   setGeminiMdFileCount: (count: number) => void,
@@ -379,6 +380,9 @@ export const useSlashCommandProcessor = (
                     case 'settings':
                       openSettingsDialog();
                       return { type: 'handled' };
+                    case 'subagent_create':
+                      openSubagentCreateDialog();
+                      return { type: 'handled' };
                     case 'help':
                       return { type: 'handled' };
                     default: {
@@ -553,6 +557,7 @@ export const useSlashCommandProcessor = (
       openEditorDialog,
       setQuittingMessages,
       openSettingsDialog,
+      openSubagentCreateDialog,
       setShellConfirmationRequest,
       setSessionShellAllowlist,
       setIsProcessing,

packages/cli/src/ui/hooks/useSubagentCreateDialog.ts

@@ -0,0 +1,26 @@
+/**
+ * @license
+ * Copyright 2025 Qwen
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { useState, useCallback } from 'react';
+
+export function useSubagentCreateDialog() {
+  const [isSubagentCreateDialogOpen, setIsSubagentCreateDialogOpen] =
+    useState(false);
+
+  const openSubagentCreateDialog = useCallback(() => {
+    setIsSubagentCreateDialogOpen(true);
+  }, []);
+
+  const closeSubagentCreateDialog = useCallback(() => {
+    setIsSubagentCreateDialogOpen(false);
+  }, []);
+
+  return {
+    isSubagentCreateDialogOpen,
+    openSubagentCreateDialog,
+    closeSubagentCreateDialog,
+  };
+}