diff --git a/src/vs/workbench/api/common/extHostChatAgents2.ts b/src/vs/workbench/api/common/extHostChatAgents2.ts
index 7cf7257784a..be18391d2d0 100644
--- a/src/vs/workbench/api/common/extHostChatAgents2.ts
+++ b/src/vs/workbench/api/common/extHostChatAgents2.ts
@@ -561,13 +561,13 @@ export class ExtHostChatAgents2 extends Disposable implements ExtHostChatAgentsS
 		return this._diagnostics.getDiagnostics();
 	}
 
-	private getTools2ForRequest(extension: IExtensionDescription, request: Dto<IChatAgentRequest>): Map<vscode.LanguageModelToolInformation, boolean> {
+	private getTools2ForRequest(extension: IExtensionDescription, request: Dto<IChatAgentRequest>): Map<string, boolean> {
 		if (!request.userSelectedTools2) {
 			return new Map();
 		}
-		const result = new Map<vscode.LanguageModelToolInformation, boolean>();
+		const result = new Map<string, boolean>();
 		for (const tool of this._tools.getTools(extension)) {
-			result.set(tool, request.userSelectedTools2[tool.name] ?? false);
+			result.set(tool.name, request.userSelectedTools2[tool.name] ?? false);
 		}
 		return result;
 	}
diff --git a/src/vs/workbench/api/common/extHostTypeConverters.ts b/src/vs/workbench/api/common/extHostTypeConverters.ts
index 2b36f48cdf8..5edf7e1c49b 100644
--- a/src/vs/workbench/api/common/extHostTypeConverters.ts
+++ b/src/vs/workbench/api/common/extHostTypeConverters.ts
@@ -2903,7 +2903,7 @@ export namespace ChatResponsePart {
 }
 
 export namespace ChatAgentRequest {
-	export function to(request: IChatAgentRequest, location2: vscode.ChatRequestEditorData | vscode.ChatRequestNotebookData | undefined, model: vscode.LanguageModelChat, diagnostics: readonly [vscode.Uri, readonly vscode.Diagnostic[]][], toolSelection: vscode.ChatRequestToolSelection | undefined, tools: Map<vscode.LanguageModelToolInformation, boolean>, extension: IRelaxedExtensionDescription): vscode.ChatRequest {
+	export function to(request: IChatAgentRequest, location2: vscode.ChatRequestEditorData | vscode.ChatRequestNotebookData | undefined, model: vscode.LanguageModelChat, diagnostics: readonly [vscode.Uri, readonly vscode.Diagnostic[]][], toolSelection: vscode.ChatRequestToolSelection | undefined, tools: Map<string, boolean>, extension: IRelaxedExtensionDescription): vscode.ChatRequest {
 		const toolReferences = request.variables.variables.filter(v => v.kind === 'tool');
 		const variableReferences = request.variables.variables.filter(v => v.kind !== 'tool');
 		const requestWithAllProps: vscode.ChatRequest = {
diff --git a/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts b/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
index 8624b806118..68be8e580b6 100644
--- a/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
+++ b/src/vscode-dts/vscode.proposed.chatParticipantAdditions.d.ts
@@ -248,7 +248,7 @@ declare module 'vscode' {
 		/**
 		 * A map of all tools that should (`true`) and should not (`false`) be used in this request.
 		 */
-		readonly tools: Map<LanguageModelToolInformation, boolean>;
+		readonly tools: Map<string, boolean>;
 	}
 
 	// TODO@API fit this into the stream