Fix build

src/@types/vscode.proposed.chatContextProvider.d.ts

@@ -73,6 +73,8 @@ declare module 'vscode' {
 		 * Chat context items can be provided without a `value`, as the `value` can be resolved later using `resolveChatContext`.
 		 * `resolveChatContext` is only called for items that do not have a `value`.
 		 *
+		 * Currently only called when the resource is a webview.
+		 *
 		 * @param options Options include the resource for which to provide context.
 		 * @param token A cancellation token.
 		 */

src/@types/vscode.proposed.chatParticipantAdditions.d.ts

@@ -32,7 +32,8 @@ declare module 'vscode' {
 	export class ChatResponseCodeblockUriPart {
 		isEdit?: boolean;
 		value: Uri;
-		constructor(value: Uri, isEdit?: boolean);
+		undoStopId?: string;
+		constructor(value: Uri, isEdit?: boolean, undoStopId?: string);
 	}
 
 	/**
@@ -170,7 +171,7 @@ declare module 'vscode' {
 	export class ChatResponseExternalEditPart {
 		uris: Uri[];
 		callback: () => Thenable<unknown>;
-		applied: Thenable<void>;
+		applied: Thenable<string>;
 		constructor(uris: Uri[], callback: () => Thenable<unknown>);
 	}
 
@@ -314,7 +315,7 @@ declare module 'vscode' {
 		 * tracked as agent edits. This can be used to track edits made from
 		 * external tools that don't generate simple {@link textEdit textEdits}.
 		 */
-		externalEdit<T>(target: Uri | Uri[], callback: () => Thenable<T>): Thenable<T>;
+		externalEdit(target: Uri | Uri[], callback: () => Thenable<unknown>): Thenable<string>;
 
 		markdownWithVulnerabilities(value: string | MarkdownString, vulnerabilities: ChatVulnerability[]): void;
 		codeblockUri(uri: Uri, isEdit?: boolean): void;

src/@types/vscode.proposed.chatParticipantPrivate.d.ts

@@ -30,12 +30,17 @@ declare module 'vscode' {
 	}
 
 	export class ChatRequestEditorData {
+
+		readonly editor: TextEditor;
+
 		//TODO@API should be the editor
 		document: TextDocument;
 		selection: Selection;
+
+		/** @deprecated */
 		wholeRange: Range;
 
-		constructor(document: TextDocument, selection: Selection, wholeRange: Range);
+		constructor(editor: TextEditor, document: TextDocument, selection: Selection, wholeRange: Range);
 	}
 
 	export class ChatRequestNotebookData {
@@ -148,6 +153,11 @@ declare module 'vscode' {
 	}
 
 	export class ChatResponseTurn2 {
+		/**
+		 * The id of the chat response. Used to identity an interaction with any of the chat surfaces.
+		 */
+		readonly id?: string;
+
 		/**
 		 * The content that was received from the chat participant. Only the stream parts that represent actual content (not metadata) are represented.
 		 */
@@ -309,4 +319,65 @@ declare module 'vscode' {
 	}
 
 	// #endregion
+
+	// #region CustomAgentsProvider
+
+	/**
+	 * Represents a custom agent resource file (e.g., .agent.md or .prompt.md) available for a repository.
+	 */
+	export interface CustomAgentResource {
+		/**
+		 * The unique identifier/name of the custom agent resource.
+		 */
+		readonly name: string;
+
+		/**
+		 * A description of what the custom agent resource does.
+		 */
+		readonly description: string;
+
+		/**
+		 * The URI to the agent or prompt resource file.
+		 */
+		readonly uri: Uri;
+
+		/**
+		 * Indicates whether the custom agent resource is editable. Defaults to false.
+		 */
+		readonly isEditable?: boolean;
+	}
+
+	/**
+	 * Options for querying custom agents.
+	 */
+	export interface CustomAgentQueryOptions { }
+
+	/**
+	 * A provider that supplies custom agent resources (from .agent.md and .prompt.md files) for repositories.
+	 */
+	export interface CustomAgentsProvider {
+		/**
+		 * An optional event to signal that custom agents have changed.
+		 */
+		readonly onDidChangeCustomAgents?: Event<void>;
+
+		/**
+		 * Provide the list of custom agent resources available for a given repository.
+		 * @param options Optional query parameters.
+		 * @param token A cancellation token.
+		 * @returns An array of custom agent resources or a promise that resolves to such.
+		 */
+		provideCustomAgents(options: CustomAgentQueryOptions, token: CancellationToken): ProviderResult<CustomAgentResource[]>;
+	}
+
+	export namespace chat {
+		/**
+		 * Register a provider for custom agents.
+		 * @param provider The custom agents provider.
+		 * @returns A disposable that unregisters the provider when disposed.
+		 */
+		export function registerCustomAgentsProvider(provider: CustomAgentsProvider): Disposable;
+	}
+
+	// #endregion
 }

src/@types/vscode.proposed.chatSessionsProvider.d.ts

@@ -122,7 +122,7 @@ declare module 'vscode' {
 		/**
 		 * Statistics about the chat session.
 		 */
-		statistics?: {
+		changes?: readonly ChatSessionChangedFile[] | {
 			/**
 			 * Number of files edited during the session.
 			 */
@@ -140,6 +140,30 @@ declare module 'vscode' {
 		};
 	}
 
+	export class ChatSessionChangedFile {
+		/**
+		 * URI of the file.
+		 */
+		modifiedUri: Uri;
+
+		/**
+		 * File opened when the user takes the 'compare' action.
+		 */
+		originalUri?: Uri;
+
+		/**
+		 * Number of insertions made during the session.
+		 */
+		insertions: number;
+
+		/**
+		 * Number of deletions made during the session.
+		 */
+		deletions: number;
+
+		constructor(modifiedUri: Uri, insertions: number, deletions: number, originalUri?: Uri);
+	}
+
 	export interface ChatSession {
 		/**
 		 * The full history of the session
@@ -179,10 +203,39 @@ declare module 'vscode' {
 		readonly requestHandler: ChatRequestHandler | undefined;
 	}
 
+	/**
+	 * Event fired when chat session options change.
+	 */
+	export interface ChatSessionOptionChangeEvent {
+		/**
+		 * Identifier of the chat session being updated.
+		 */
+		readonly resource: Uri;
+		/**
+		 * Collection of option identifiers and their new values. Only the options that changed are included.
+		 */
+		readonly updates: ReadonlyArray<{
+			/**
+			 * Identifier of the option that changed (for example `model`).
+			 */
+			readonly optionId: string;
+
+			/**
+			 * The new value assigned to the option. When `undefined`, the option is cleared.
+			 */
+			readonly value: string | ChatSessionProviderOptionItem;
+		}>;
+	}
+
 	/**
 	 * Provides the content for a chat session rendered using the native chat UI.
 	 */
 	export interface ChatSessionContentProvider {
+		/**
+		 * Event that the provider can fire to signal that the options for a chat session have changed.
+		 */
+		readonly onDidChangeChatSessionOptions?: Event<ChatSessionOptionChangeEvent>;
+
 		/**
 		 * Provides the chat session content for a given uri.
 		 *
@@ -275,12 +328,22 @@ declare module 'vscode' {
 		 */
 		readonly name: string;
 
+		/**
+		 * Optional description shown in tooltips.
+		 */
+		readonly description?: string;
+
 		/**
 		 * When true, this option is locked and cannot be changed by the user.
 		 * The option will still be visible in the UI but will be disabled.
 		 * Use this when an option is set but cannot be hot-swapped (e.g., model already initialized).
 		 */
 		readonly locked?: boolean;
+
+		/**
+		 * An icon for the option item shown in UI.
+		 */
+		readonly icon?: ThemeIcon;
 	}
 
 	/**

src/github/copilotRemoteAgent.ts

@@ -1086,7 +1086,7 @@ export class CopilotRemoteAgentManager extends Disposable {
 					timing: {
 						startTime: timestampNumber
 					},
-					statistics: pullRequest.item.additions !== undefined && pullRequest.item.deletions !== undefined && (pullRequest.item.additions > 0 || pullRequest.item.deletions > 0) ? {
+					changes: pullRequest.item.additions !== undefined && pullRequest.item.deletions !== undefined && (pullRequest.item.additions > 0 || pullRequest.item.deletions > 0) ? {
 						insertions: pullRequest.item.additions,
 						deletions: pullRequest.item.deletions,
 						files: fileCount