diff --git a/src/vs/platform/agentHost/common/state/protocol/.ahp-version b/src/vs/platform/agentHost/common/state/protocol/.ahp-version
index 6696950658362..400f64af3fd33 100644
--- a/src/vs/platform/agentHost/common/state/protocol/.ahp-version
+++ b/src/vs/platform/agentHost/common/state/protocol/.ahp-version
@@ -1 +1 @@
-8611f76
+e839321
diff --git a/src/vs/platform/agentHost/common/state/protocol/state.ts b/src/vs/platform/agentHost/common/state/protocol/state.ts
index fe256b98ad7c9..088c8b1769c44 100644
--- a/src/vs/platform/agentHost/common/state/protocol/state.ts
+++ b/src/vs/platform/agentHost/common/state/protocol/state.ts
@@ -665,7 +665,7 @@ export interface SessionInputRequest {
 	/** Stable request identifier */
 	id: string;
 	/** Display message for the request as a whole */
-	message: string;
+	message?: string;
 	/** URL the user should review or open, for URL-style elicitations */
 	url?: URI;
 	/** Ordered questions to ask the user */
diff --git a/src/vs/platform/agentHost/node/copilot/copilotAgentSession.ts b/src/vs/platform/agentHost/node/copilot/copilotAgentSession.ts
index 4555cb5bf7ac2..bdacf85e37c2d 100644
--- a/src/vs/platform/agentHost/node/copilot/copilotAgentSession.ts
+++ b/src/vs/platform/agentHost/node/copilot/copilotAgentSession.ts
@@ -545,7 +545,6 @@ export class CopilotAgentSession extends Disposable {
 			// Build the protocol SessionInputRequest from the SDK's simple format
 			const inputRequest: SessionInputRequest = {
 				id: requestId,
-				message: request.question,
 				questions: [request.choices && request.choices.length > 0
 					? {
 						kind: SessionInputQuestionKind.SingleSelect,
diff --git a/src/vs/platform/agentHost/test/node/copilotAgentSession.test.ts b/src/vs/platform/agentHost/test/node/copilotAgentSession.test.ts
index 93b8331262de3..3583f69d1ab00 100644
--- a/src/vs/platform/agentHost/test/node/copilotAgentSession.test.ts
+++ b/src/vs/platform/agentHost/test/node/copilotAgentSession.test.ts
@@ -737,9 +737,9 @@ suite('CopilotAgentSession', () => {
 			assert.strictEqual(progressEvents.length, 1);
 			const event = progressEvents[0];
 			assertUserInputEvent(event);
-			assert.strictEqual(event.request.message, 'What is your name?');
 			const requestId = event.request.id;
 			assert.ok(event.request.questions);
+			assert.strictEqual(event.request.questions[0].message, 'What is your name?');
 			const questionId = event.request.questions[0].id;
 
 			// Respond to unblock the promise
diff --git a/src/vs/workbench/contrib/chat/browser/agentSessions/agentHost/agentHostSessionHandler.ts b/src/vs/workbench/contrib/chat/browser/agentSessions/agentHost/agentHostSessionHandler.ts
index 16e9c93aa2b1a..e29847e79d21f 100644
--- a/src/vs/workbench/contrib/chat/browser/agentSessions/agentHost/agentHostSessionHandler.ts
+++ b/src/vs/workbench/contrib/chat/browser/agentSessions/agentHost/agentHostSessionHandler.ts
@@ -1736,7 +1736,7 @@ export class AgentHostSessionHandler extends Disposable implements IChatSessionC
 			questions.push({
 				id: 'answer',
 				type: 'text',
-				title: inputReq.message,
+				title: inputReq.message ?? '',
 				required: true,
 			});
 		}
@@ -1747,7 +1747,7 @@ export class AgentHostSessionHandler extends Disposable implements IChatSessionC
 			/* resolveId */ undefined,
 			/* data */ undefined,
 			/* isUsed */ undefined,
-			/* message */ rawMarkdownToString(inputReq.message, this._config.connectionAuthority),
+			/* message */ inputReq.message ? rawMarkdownToString(inputReq.message, this._config.connectionAuthority) : undefined,
 		);
 
 		progress([carousel]);