feat: subagent phase 2 implementation

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

@@ -0,0 +1,119 @@
+/**
+ * @license
+ * Copyright 2025 Qwen
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { MessageType } from '../types.js';
+import {
+  CommandKind,
+  SlashCommand,
+  SlashCommandActionReturn,
+  OpenDialogActionReturn,
+} from './types.js';
+
+export const agentsCommand: SlashCommand = {
+  name: 'agents',
+  description: 'Manage subagents for specialized task delegation.',
+  kind: CommandKind.BUILT_IN,
+  subCommands: [
+    {
+      name: 'create',
+      description: 'Create a new subagent with guided setup.',
+      kind: CommandKind.BUILT_IN,
+      action: (): OpenDialogActionReturn => ({
+        type: 'dialog',
+        dialog: 'subagent_create',
+      }),
+    },
+    {
+      name: 'list',
+      description: 'List all available subagents.',
+      kind: CommandKind.BUILT_IN,
+      action: async (context): Promise<SlashCommandActionReturn | void> => {
+        context.ui.addItem(
+          {
+            type: MessageType.INFO,
+            text: 'Listing subagents... (not implemented yet)',
+          },
+          Date.now(),
+        );
+      },
+    },
+    {
+      name: 'show',
+      description: 'Show detailed information about a subagent.',
+      kind: CommandKind.BUILT_IN,
+      action: async (
+        context,
+        args,
+      ): Promise<SlashCommandActionReturn | void> => {
+        if (!args || args.trim() === '') {
+          return {
+            type: 'message',
+            messageType: 'error',
+            content: 'Usage: /agents show <subagent-name>',
+          };
+        }
+
+        context.ui.addItem(
+          {
+            type: MessageType.INFO,
+            text: `Showing details for subagent: ${args.trim()} (not implemented yet)`,
+          },
+          Date.now(),
+        );
+      },
+    },
+    {
+      name: 'edit',
+      description: 'Edit an existing subagent configuration.',
+      kind: CommandKind.BUILT_IN,
+      action: async (
+        context,
+        args,
+      ): Promise<SlashCommandActionReturn | void> => {
+        if (!args || args.trim() === '') {
+          return {
+            type: 'message',
+            messageType: 'error',
+            content: 'Usage: /agents edit <subagent-name>',
+          };
+        }
+
+        context.ui.addItem(
+          {
+            type: MessageType.INFO,
+            text: `Editing subagent: ${args.trim()} (not implemented yet)`,
+          },
+          Date.now(),
+        );
+      },
+    },
+    {
+      name: 'delete',
+      description: 'Delete a subagent configuration.',
+      kind: CommandKind.BUILT_IN,
+      action: async (
+        context,
+        args,
+      ): Promise<SlashCommandActionReturn | void> => {
+        if (!args || args.trim() === '') {
+          return {
+            type: 'message',
+            messageType: 'error',
+            content: 'Usage: /agents delete <subagent-name>',
+          };
+        }
+
+        context.ui.addItem(
+          {
+            type: MessageType.INFO,
+            text: `Deleting subagent: ${args.trim()} (not implemented yet)`,
+          },
+          Date.now(),
+        );
+      },
+    },
+  ],
+};

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

@@ -104,7 +104,14 @@ export interface MessageActionReturn {
 export interface OpenDialogActionReturn {
   type: 'dialog';
 
-  dialog: 'help' | 'auth' | 'theme' | 'editor' | 'privacy' | 'settings';
+  dialog:
+    | 'help'
+    | 'auth'
+    | 'theme'
+    | 'editor'
+    | 'privacy'
+    | 'settings'
+    | 'subagent_create';
 }
 
 /**