feat: add 'Checkout in Worktree' option to PR Description checkout button

Agent-Logs-Url: https://github.com/microsoft/vscode-pull-request-github/sessions/113a0bba-a0a7-47d9-baca-dd4dd5fda645

Author: Copilot

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

@@ -223,6 +223,16 @@ declare module 'vscode' {
 		};
 		language: string;
 
+		/**
+		 * Overrides for how the command is presented in the UI.
+		 * For example, when a `cd <dir> && <command>` prefix is detected,
+		 * the presentation can show only the actual command.
+		 */
+		presentationOverrides?: {
+			commandLine: string;
+			language?: string;
+		};
+
 		/**
 		 * Terminal command output. Displayed when the terminal is no longer available.
 		 */
@@ -829,6 +839,12 @@ declare module 'vscode' {
 		 */
 		readonly completionTokens: number;
 
+		/**
+		 * The number of tokens reserved for the response.
+		 * This is rendered specially in the UI to indicate that these tokens aren't used but are reserved.
+		 */
+		readonly outputBuffer?: number;
+
 		/**
 		 * Optional breakdown of prompt token usage by category and label.
 		 * If the percentages do not sum to 100%, the remaining will be shown as "Uncategorized".
@@ -974,10 +990,6 @@ declare module 'vscode' {
 		readonly toolReferences?: readonly ChatLanguageModelToolReference[];
 	}
 
-	export interface ChatResultFeedback {
-		readonly unhelpfulReason?: string;
-	}
-
 	export namespace lm {
 		export function fileIsIgnored(uri: Uri, token?: CancellationToken): Thenable<boolean>;
 	}
@@ -1020,8 +1032,6 @@ declare module 'vscode' {
 		readonly rawInput?: unknown;
 
 		readonly chatRequestId?: string;
-		/** @deprecated Use {@link chatSessionResource} instead */
-		readonly chatSessionId?: string;
 		readonly chatSessionResource?: Uri;
 		readonly chatInteractionId?: string;
 	}
@@ -1051,9 +1061,15 @@ declare module 'vscode' {
 	}
 
 	export interface ChatRequestModeInstructions {
+		/** set when the mode a custom agent (not built-in), to be used as identifier */
+		readonly uri?: Uri;
 		readonly name: string;
 		readonly content: string;
 		readonly toolReferences?: readonly ChatLanguageModelToolReference[];
 		readonly metadata?: Record<string, boolean | string | number>;
+		/**
+		 * Whether the mode is a builtin mode (e.g. Ask, Edit, Agent) rather than a user or extension-defined custom mode.
+		 */
+		readonly isBuiltin?: boolean;
 	}
 }

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

@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-// version: 14
+// version: 15
 
 declare module 'vscode' {
 
@@ -116,10 +116,25 @@ declare module 'vscode' {
 		 */
 		readonly parentRequestId?: string;
 
+		/**
+		 * The permission level for tool auto-approval in this request.
+		 * - `'autoApprove'`: Auto-approve all tool calls and retry on errors.
+		 * - `'autopilot'`: Everything autoApprove does plus continues until the task is done.
+		 */
+		readonly permissionLevel?: string;
+
 		/**
 		 * Whether any hooks are enabled for this request.
 		 */
 		readonly hasHooksEnabled: boolean;
+
+		/**
+		 * When true, this request was initiated by the system (e.g. a terminal
+		 * command completion notification) rather than by the user typing a
+		 * message. Extensions can use this to render the prompt differently
+		 * and skip billing.
+		 */
+		readonly isSystemInitiated?: boolean;
 	}
 
 	export enum ChatRequestEditedFileEventKind {
@@ -176,10 +191,20 @@ declare module 'vscode' {
 		 */
 		readonly editedFileEvents?: ChatRequestEditedFileEvent[];
 
+		/**
+		 * The identifier of the language model that was used for this request, if known.
+		 */
+		readonly modelId?: string;
+
+		/**
+		 * The mode instructions that were active for this request, if any.
+		 */
+		readonly modeInstructions2?: ChatRequestModeInstructions;
+
 		/**
 		 * @hidden
 		 */
-		constructor(prompt: string, command: string | undefined, references: ChatPromptReference[], participant: string, toolReferences: ChatLanguageModelToolReference[], editedFileEvents: ChatRequestEditedFileEvent[] | undefined, id: string | undefined);
+		constructor(prompt: string, command: string | undefined, references: ChatPromptReference[], participant: string, toolReferences: ChatLanguageModelToolReference[], editedFileEvents: ChatRequestEditedFileEvent[] | undefined, id: string | undefined, modelId: string | undefined, modeInstructions2: ChatRequestModeInstructions | undefined);
 	}
 
 	export class ChatResponseTurn2 {
@@ -262,8 +287,6 @@ declare module 'vscode' {
 
 	export interface LanguageModelToolInvocationOptions<T> {
 		chatRequestId?: string;
-		/** @deprecated Use {@link chatSessionResource} instead */
-		chatSessionId?: string;
 		chatSessionResource?: Uri;
 		chatInteractionId?: string;
 		terminalCommand?: string;
@@ -289,8 +312,6 @@ declare module 'vscode' {
 		 */
 		input: T;
 		chatRequestId?: string;
-		/** @deprecated Use {@link chatSessionResource} instead */
-		chatSessionId?: string;
 		chatSessionResource?: Uri;
 		chatInteractionId?: string;
 		/**
@@ -392,7 +413,27 @@ declare module 'vscode' {
 		 * will immediately follow up with a new request in the same conversation.
 		 */
 		readonly yieldRequested: boolean;
+
+		/**
+		 * The resource URI identifying the chat session this context belongs to.
+		 * Available when the context is provided for title generation, summarization,
+		 * or other session-scoped operations. Extracted from the session's history entries.
+		 */
+		readonly sessionResource?: Uri;
 	}
 
 	// #endregion
+
+	export interface LanguageModelToolInformation {
+		/**
+		 * The full reference name of this tool as used in agent definition files.
+		 *
+		 * For MCP tools, this is the canonical name in the format `serverShortName/toolReferenceName`
+		 * (e.g., `github/search_issues`). This can be used to map between the tool names specified
+		 * in agent `.md` files and the tool's internal {@link LanguageModelToolInformation.name id}.
+		 *
+		 * This property is only set for MCP tools. For other tool types, it is `undefined`.
+		 */
+		readonly fullReferenceName?: string;
+	}
 }