agent sessions - strip markdown from description (workaround #279938) (#279965)

Author: bpasero

src/vs/workbench/contrib/chat/browser/agentSessions/localAgentSessionsProvider.ts

@@ -3,6 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+import { renderAsPlaintext } from '../../../../../base/browser/markdownRenderer.js';
 import { coalesce } from '../../../../../base/common/arrays.js';
 import { CancellationToken } from '../../../../../base/common/cancellation.js';
 import { Codicon } from '../../../../../base/common/codicons.js';
@@ -150,7 +151,7 @@ export class LocalAgentsSessionsProvider extends Disposable implements IChatSess
 				const sessionItem = this.toChatSessionItem(history);
 				return sessionItem ? {
 					...sessionItem,
-					//todo@bpasero comment
+					//todo@bpasero remove this property once classic view is gone
 					history: true
 				} : undefined;
 			}));
@@ -176,7 +177,7 @@ export class LocalAgentsSessionsProvider extends Disposable implements IChatSess
 			if (!description) {
 				const responseValue = lastResponse?.response.toString();
 				if (responseValue) {
-					description = truncate(responseValue.replace(/\r?\n/g, ' '), 100);
+					description = truncate(renderAsPlaintext({ value: responseValue }).replace(/\r?\n/g, ' '), 100); // ensure to strip any markdown
 				}
 			}