Adds executeCommand endpoint with support for /extensions list (#11515)

packages/core/src/commands/extensions.test.ts

@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect, vi } from 'vitest';
+import { listExtensions } from './extensions.js';
+import type { Config } from '../config/config.js';
+
+describe('listExtensions', () => {
+  it('should call config.getExtensions and return the result', () => {
+    const mockExtensions = [{ name: 'ext1' }, { name: 'ext2' }];
+    const mockConfig = {
+      getExtensions: vi.fn().mockReturnValue(mockExtensions),
+    } as unknown as Config;
+
+    const result = listExtensions(mockConfig);
+
+    expect(mockConfig.getExtensions).toHaveBeenCalledTimes(1);
+    expect(result).toEqual(mockExtensions);
+  });
+});

packages/core/src/commands/extensions.ts

@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import type { Config } from '../config/config.js';
+
+export function listExtensions(config: Config) {
+  return config.getExtensions();
+}

packages/core/src/index.ts

@@ -14,6 +14,9 @@ export * from './policy/policy-engine.js';
 export * from './confirmation-bus/types.js';
 export * from './confirmation-bus/message-bus.js';
 
+// Export Commands logic
+export * from './commands/extensions.js';
+
 // Export Core Logic
 export * from './core/client.js';
 export * from './core/contentGenerator.js';