add setting chat.exitAfterDelegation

src/vs/workbench/contrib/chat/browser/chat.contribution.ts

@@ -817,6 +817,12 @@ configurationRegistry.registerConfiguration({
 				mode: 'auto'
 			}
 		},
+		[ChatConfiguration.ExitAfterDelegation]: {
+			type: 'boolean',
+			description: nls.localize('chat.exitAfterDelegation', "Controls whether the chat panel automatically exits after delegating a request to another session."),
+			default: true,
+			tags: ['experimental'],
+		},
 		'chat.extensionUnification.enabled': {
 			type: 'boolean',
 			description: nls.localize('chat.extensionUnification.enabled', "Enables the unification of GitHub Copilot extensions. When enabled, all GitHub Copilot functionality is served from the GitHub Copilot Chat extension. When disabled, the GitHub Copilot and GitHub Copilot Chat extensions operate independently."),

src/vs/workbench/contrib/chat/browser/chatWidget.ts

@@ -1334,6 +1334,10 @@ export class ChatWidget extends Disposable implements IChatWidget {
 	}
 
 	private _shouldExitAfterDelegation(agent: IChatAgentData | undefined): boolean {
+		if (!this.configurationService.getValue<boolean>(ChatConfiguration.ExitAfterDelegation)) {
+			return false;
+		}
+
 		if (!agent) {
 			return false;
 		}

src/vs/workbench/contrib/chat/common/constants.ts

@@ -28,6 +28,7 @@ export enum ChatConfiguration {
 	SubagentToolCustomAgents = 'chat.customAgentInSubagent.enabled',
 	ShowCodeBlockProgressAnimation = 'chat.agent.codeBlockProgress',
 	RestoreLastPanelSession = 'chat.restoreLastPanelSession',
+	ExitAfterDelegation = 'chat.exitAfterDelegation',
 	SuspendThrottling = 'chat.suspendThrottling',
 }