feat: introduce UX Extension and Base Folder Strategy

packages/a2a-server/src/agent/task.ts

@@ -880,9 +880,7 @@ export class Task {
     if (
       part.kind !== 'data' ||
       !part.data ||
-      // eslint-disable-next-line no-restricted-syntax
       typeof part.data['callId'] !== 'string' ||
-      // eslint-disable-next-line no-restricted-syntax
       typeof part.data['outcome'] !== 'string'
     ) {
       return false;

packages/a2a-server/src/config/config.test.ts

@@ -19,8 +19,6 @@ import {
   AuthType,
   isHeadlessMode,
   FatalAuthenticationError,
-  PolicyDecision,
-  PRIORITY_YOLO_ALLOW_ALL,
 } from '@google/gemini-cli-core';
 
 // Mock dependencies
@@ -327,29 +325,6 @@ describe('loadConfig', () => {
       );
     });
 
-    it('should pass enableAgents to Config constructor', async () => {
-      const settings: Settings = {
-        experimental: {
-          enableAgents: false,
-        },
-      };
-      await loadConfig(settings, mockExtensionLoader, taskId);
-      expect(Config).toHaveBeenCalledWith(
-        expect.objectContaining({
-          enableAgents: false,
-        }),
-      );
-    });
-
-    it('should default enableAgents to true when not provided', async () => {
-      await loadConfig(mockSettings, mockExtensionLoader, taskId);
-      expect(Config).toHaveBeenCalledWith(
-        expect.objectContaining({
-          enableAgents: true,
-        }),
-      );
-    });
-
     describe('interactivity', () => {
       it('should set interactive true when not headless', async () => {
         vi.mocked(isHeadlessMode).mockReturnValue(false);
@@ -374,41 +349,6 @@ describe('loadConfig', () => {
       });
     });
 
-    describe('YOLO mode', () => {
-      it('should enable YOLO mode and add policy rule when GEMINI_YOLO_MODE is true', async () => {
-        vi.stubEnv('GEMINI_YOLO_MODE', 'true');
-        await loadConfig(mockSettings, mockExtensionLoader, taskId);
-        expect(Config).toHaveBeenCalledWith(
-          expect.objectContaining({
-            approvalMode: 'yolo',
-            policyEngineConfig: expect.objectContaining({
-              rules: expect.arrayContaining([
-                expect.objectContaining({
-                  decision: PolicyDecision.ALLOW,
-                  priority: PRIORITY_YOLO_ALLOW_ALL,
-                  modes: ['yolo'],
-                  allowRedirection: true,
-                }),
-              ]),
-            }),
-          }),
-        );
-      });
-
-      it('should use default approval mode and empty rules when GEMINI_YOLO_MODE is not true', async () => {
-        vi.stubEnv('GEMINI_YOLO_MODE', 'false');
-        await loadConfig(mockSettings, mockExtensionLoader, taskId);
-        expect(Config).toHaveBeenCalledWith(
-          expect.objectContaining({
-            approvalMode: 'default',
-            policyEngineConfig: expect.objectContaining({
-              rules: [],
-            }),
-          }),
-        );
-      });
-    });
-
     describe('authentication fallback', () => {
       beforeEach(() => {
         vi.stubEnv('USE_CCPA', 'true');

packages/a2a-server/src/config/config.ts

@@ -26,8 +26,6 @@ import {
   isHeadlessMode,
   FatalAuthenticationError,
   isCloudShell,
-  PolicyDecision,
-  PRIORITY_YOLO_ALLOW_ALL,
   type TelemetryTarget,
   type ConfigParameters,
   type ExtensionLoader,
@@ -62,11 +60,6 @@ export async function loadConfig(
     }
   }
 
-  const approvalMode =
-    process.env['GEMINI_YOLO_MODE'] === 'true'
-      ? ApprovalMode.YOLO
-      : ApprovalMode.DEFAULT;
-
   const configParams: ConfigParameters = {
     sessionId: taskId,
     clientName: 'a2a-server',
@@ -81,20 +74,10 @@ export async function loadConfig(
     excludeTools: settings.excludeTools || settings.tools?.exclude || undefined,
     allowedTools: settings.allowedTools || settings.tools?.allowed || undefined,
     showMemoryUsage: settings.showMemoryUsage || false,
-    approvalMode,
-    policyEngineConfig: {
-      rules:
-        approvalMode === ApprovalMode.YOLO
-          ? [
-              {
-                decision: PolicyDecision.ALLOW,
-                priority: PRIORITY_YOLO_ALLOW_ALL,
-                modes: [ApprovalMode.YOLO],
-                allowRedirection: true,
-              },
-            ]
-          : [],
-    },
+    approvalMode:
+      process.env['GEMINI_YOLO_MODE'] === 'true'
+        ? ApprovalMode.YOLO
+        : ApprovalMode.DEFAULT,
     mcpServers: settings.mcpServers,
     cwd: workspaceDir,
     telemetry: {
@@ -127,7 +110,6 @@ export async function loadConfig(
     interactive: !isHeadlessMode(),
     enableInteractiveShell: !isHeadlessMode(),
     ptyInfo: 'auto',
-    enableAgents: settings.experimental?.enableAgents ?? true,
   };
 
   const fileService = new FileDiscoveryService(workspaceDir, {

packages/a2a-server/src/config/settings.test.ts

@@ -112,18 +112,6 @@ describe('loadSettings', () => {
     expect(result.fileFiltering?.respectGitIgnore).toBe(true);
   });
 
-  it('should load experimental settings correctly', () => {
-    const settings = {
-      experimental: {
-        enableAgents: true,
-      },
-    };
-    fs.writeFileSync(USER_SETTINGS_PATH, JSON.stringify(settings));
-
-    const result = loadSettings(mockWorkspaceDir);
-    expect(result.experimental?.enableAgents).toBe(true);
-  });
-
   it('should overwrite top-level settings from workspace (shallow merge)', () => {
     const userSettings = {
       showMemoryUsage: false,

packages/a2a-server/src/config/settings.ts

@@ -48,9 +48,6 @@ export interface Settings {
     enableRecursiveFileSearch?: boolean;
     customIgnoreFilePaths?: string[];
   };
-  experimental?: {
-    enableAgents?: boolean;
-  };
 }
 
 export interface SettingsError {