diff --git a/src/@types/vscode.proposed.chatParticipantPrivate.d.ts b/src/@types/vscode.proposed.chatParticipantPrivate.d.ts
index f0fad8b953..85f68a5569 100644
--- a/src/@types/vscode.proposed.chatParticipantPrivate.d.ts
+++ b/src/@types/vscode.proposed.chatParticipantPrivate.d.ts
@@ -126,6 +126,11 @@ declare module 'vscode' {
 		 */
 		readonly hasHooksEnabled: boolean;
 
+		/**
+		 * Whether this request was submitted through Agents Voice Mode.
+		 */
+		readonly isVoiceModeInput?: boolean;
+
 		/**
 		 * When true, this request was initiated by the system (e.g. a terminal
 		 * command completion notification) rather than by the user typing a
@@ -135,6 +140,41 @@ declare module 'vscode' {
 		readonly isSystemInitiated?: boolean;
 	}
 
+	/**
+	 * A transient progress update intended for Voice Mode narration.
+	 */
+	export type ChatResponseVoiceProgressStage = 'investigating' | 'planning' | 'editing' | 'validating' | 'recovering';
+
+	export class ChatResponseVoiceProgressPart {
+		/**
+		 * A stable identifier used to de-duplicate the progress update.
+		 */
+		readonly id: ChatResponseVoiceProgressStage;
+		/**
+		 * The concise text to narrate.
+		 */
+		readonly value: string;
+		/**
+		 * Creates a Voice Mode progress update.
+		 * @param id A stable identifier used to de-duplicate the update.
+		 * @param value The concise text to narrate.
+		 */
+		constructor(id: ChatResponseVoiceProgressStage, value: string);
+	}
+
+	export interface ExtendedChatResponseParts {
+		ChatResponseVoiceProgressPart: ChatResponseVoiceProgressPart;
+	}
+
+	export interface ChatResponseStream {
+		/**
+		 * Reports transient progress for Voice Mode narration.
+		 * @param id A stable identifier used to de-duplicate the update.
+		 * @param value The concise text to narrate.
+		 */
+		voiceProgress(id: ChatResponseVoiceProgressStage, value: string): void;
+	}
+
 	export enum ChatRequestEditedFileEventKind {
 		Keep = 1,
 		Undo = 2,
diff --git a/src/@types/vscode.proposed.chatSessionsProvider.d.ts b/src/@types/vscode.proposed.chatSessionsProvider.d.ts
index 1003937f26..844de8f23d 100644
--- a/src/@types/vscode.proposed.chatSessionsProvider.d.ts
+++ b/src/@types/vscode.proposed.chatSessionsProvider.d.ts
@@ -717,7 +717,7 @@ declare module 'vscode' {
 		readonly promo?: {
 			readonly id: string;
 			readonly discountPercent: number;
-			readonly endsAt: string;
+			readonly endsAt?: string;
 			readonly message: string;
 		};
 		readonly maxInputTokens?: number;
diff --git a/src/github/folderRepositoryManager.ts b/src/github/folderRepositoryManager.ts
index 9807c8a53e..85fbd392c2 100644
--- a/src/github/folderRepositoryManager.ts
+++ b/src/github/folderRepositoryManager.ts
@@ -495,7 +495,7 @@ export class FolderRepositoryManager extends Disposable {
 		}
 
 		const activeRemotes = await this.getActiveRemotes();
-		const isAuthenticated = this.checkForAuthMatch(activeRemotes);
+		let isAuthenticated = this.checkForAuthMatch(activeRemotes);
 		if (this.credentialStore.isAnyAuthenticated() && (activeRemotes.length === 0)) {
 			const allUnknownRemotes = await this.computeAllUnknownRemotes();
 			const areAllNeverGitHub = allUnknownRemotes.every(remote => GitHubManager.isNeverGitHub(vscode.Uri.parse(remote.normalizedHost).authority));
@@ -504,6 +504,9 @@ export class FolderRepositoryManager extends Disposable {
 				this.state = ReposManagerState.RepositoriesLoaded;
 				return true;
 			}
+			if (allUnknownRemotes.length > 0) {
+				isAuthenticated = false;
+			}
 		}
 		const repositories: GitHubRepository[] = [];
 		const resolveRemotePromises: Promise<boolean>[] = [];
diff --git a/src/test/github/folderRepositoryManager.test.ts b/src/test/github/folderRepositoryManager.test.ts
index 6e4b1b9ef4..e77be9e2a8 100644
--- a/src/test/github/folderRepositoryManager.test.ts
+++ b/src/test/github/folderRepositoryManager.test.ts
@@ -6,7 +6,7 @@
 import { default as assert } from 'assert';
 import { createSandbox, SinonSandbox } from 'sinon';
 
-import { FolderRepositoryManager, titleAndBodyFrom } from '../../github/folderRepositoryManager';
+import { FolderRepositoryManager, ReposManagerState, titleAndBodyFrom } from '../../github/folderRepositoryManager';
 import { MockRepository } from '../mocks/mockRepository';
 import { MockTelemetry } from '../mocks/mockTelemetry';
 import { MockCommandRegistry } from '../mocks/mockCommandRegistry';
@@ -20,7 +20,7 @@ import { GitApiImpl } from '../../api/api1';
 import { CredentialStore } from '../../github/credentials';
 import { MockExtensionContext } from '../mocks/mockExtensionContext';
 import { Uri } from 'vscode';
-import { GitHubServerType } from '../../common/authentication';
+import { AuthProvider, GitHubServerType } from '../../common/authentication';
 import { CreatePullRequestHelper } from '../../view/createPullRequestHelper';
 import { RepositoriesManager } from '../../github/repositoriesManager';
 import { MockThemeWatcher } from '../mocks/mockThemeWatcher';
@@ -53,6 +53,20 @@ describe('PullRequestManager', function () {
 		sinon.restore();
 	});
 
+	describe('updateRepositories', function () {
+		it('requires authentication for an unknown remote with an existing GitHub.com session', async function () {
+			const url = 'ssh://git@ghe.example.com/org/repo.git';
+			const remote = new Remote('origin', url, new Protocol(url));
+			sinon.stub(manager, 'computeAllGitHubRemotes').resolves([]);
+			sinon.stub(manager, 'computeAllUnknownRemotes').resolves([remote]);
+			sinon.stub(manager.credentialStore, 'isAuthenticated').callsFake(provider => provider === AuthProvider.github);
+
+			await manager.updateRepositories();
+
+			assert.strictEqual(manager.state, ReposManagerState.NeedsAuthentication);
+		});
+	});
+
 	describe('activePullRequest', function () {
 		it('gets and sets the active pull request', function () {
 			assert.strictEqual(manager.activePullRequest, undefined);