Fix participant publisher showing "undefined" after reload

Author: roblourens

src/vs/workbench/contrib/chat/browser/actions/chatExecuteActions.ts

@@ -157,6 +157,10 @@ export class CancelAction extends Action2 {
 				id: MenuId.ChatExecute,
 				when: CONTEXT_CHAT_REQUEST_IN_PROGRESS,
 				group: 'navigation',
+			},
+			keybinding: {
+				weight: KeybindingWeight.WorkbenchContrib,
+				primary: KeyMod.CtrlCmd | KeyCode.Escape,
 			}
 		});
 	}

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

@@ -821,20 +821,7 @@ export class ChatModel extends Disposable implements IChatModel {
 					followups: r.response?.followups,
 					isCanceled: r.response?.isCanceled,
 					vote: r.response?.vote,
-					agent: r.response?.agent ?
-						// May actually be the full IChatAgent instance, just take the data props. slashCommands don't matter here.
-						{
-							id: r.response.agent.id,
-							name: r.response.agent.name,
-							description: r.response.agent.description,
-							extensionId: r.response.agent.extensionId,
-							metadata: r.response.agent.metadata,
-							slashCommands: [],
-							locations: r.response.agent.locations,
-							isDefault: r.response.agent.isDefault,
-							extensionPublisher: r.response.agent.extensionPublisher
-						}
-						: undefined,
+					agent: r.response?.agent,
 					slashCommand: r.response?.slashCommand,
 					usedContext: r.response?.usedContext,
 					contentReferences: r.response?.contentReferences

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

@@ -81,23 +81,6 @@ export class ChatRequestAgentPart implements IParsedChatRequestPart {
 	get promptText(): string {
 		return '';
 	}
-
-	/**
-	 * Don't stringify all the agent methods, just data.
-	 */
-	toJSON(): any {
-		return {
-			kind: this.kind,
-			range: this.range,
-			editorRange: this.editorRange,
-			agent: {
-				id: this.agent.id,
-				name: this.agent.name,
-				description: this.agent.description,
-				metadata: this.agent.metadata
-			}
-		};
-	}
 }
 
 /**