feat(cli): add /agents slash command to list available agents (#16182)

packages/cli/src/ui/components/HistoryItemDisplay.tsx

@@ -29,6 +29,7 @@ import { ExtensionsList } from './views/ExtensionsList.js';
 import { getMCPServerStatus } from '@google/gemini-cli-core';
 import { ToolsList } from './views/ToolsList.js';
 import { SkillsList } from './views/SkillsList.js';
+import { AgentsStatus } from './views/AgentsStatus.js';
 import { McpStatus } from './views/McpStatus.js';
 import { ChatList } from './views/ChatList.js';
 import { HooksList } from './views/HooksList.js';
@@ -160,6 +161,12 @@ export const HistoryItemDisplay: React.FC<HistoryItemDisplayProps> = ({
           showDescriptions={itemForDisplay.showDescriptions}
         />
       )}
+      {itemForDisplay.type === 'agents_list' && (
+        <AgentsStatus
+          agents={itemForDisplay.agents}
+          terminalWidth={terminalWidth}
+        />
+      )}
       {itemForDisplay.type === 'mcp_status' && (
         <McpStatus {...itemForDisplay} serverStatus={getMCPServerStatus} />
       )}