diff --git a/src/vs/sessions/contrib/chat/browser/promptsService.ts b/src/vs/sessions/contrib/chat/browser/promptsService.ts
index bcce55f35dc..b77212599ea 100644
--- a/src/vs/sessions/contrib/chat/browser/promptsService.ts
+++ b/src/vs/sessions/contrib/chat/browser/promptsService.ts
@@ -38,8 +38,7 @@ export class AgenticPromptsService extends PromptsService {
 
 	private getCopilotRoot(): URI {
 		if (!this._copilotRoot) {
-			const pathService = this.instantiationService.invokeFunction(accessor => accessor.get(IPathService));
-			this._copilotRoot = joinPath(pathService.userHome({ preferLocal: true }), '.copilot');
+			this._copilotRoot = joinPath(this.pathService.userHome({ preferLocal: true }), '.copilot');
 		}
 		return this._copilotRoot;
 	}
@@ -62,9 +61,8 @@ export class AgenticPromptsService extends PromptsService {
 	 * Each subdirectory containing a SKILL.md is treated as a skill.
 	 */
 	private async discoverBuiltinSkills(): Promise<readonly IAgentSkill[]> {
-		const fileService = this.instantiationService.invokeFunction(accessor => accessor.get(IFileService));
 		try {
-			const stat = await fileService.resolve(BUILTIN_SKILLS_URI);
+			const stat = await this.fileService.resolve(BUILTIN_SKILLS_URI);
 			if (!stat.children) {
 				return [];
 			}
diff --git a/src/vs/workbench/contrib/chat/common/promptSyntax/service/promptsServiceImpl.ts b/src/vs/workbench/contrib/chat/common/promptSyntax/service/promptsServiceImpl.ts
index 62b0430152f..4e617edc4ae 100644
--- a/src/vs/workbench/contrib/chat/common/promptSyntax/service/promptsServiceImpl.ts
+++ b/src/vs/workbench/contrib/chat/common/promptSyntax/service/promptsServiceImpl.ts
@@ -175,13 +175,13 @@ export class PromptsService extends Disposable implements IPromptsService {
 		@IInstantiationService protected readonly instantiationService: IInstantiationService,
 		@IUserDataProfileService private readonly userDataService: IUserDataProfileService,
 		@IConfigurationService private readonly configurationService: IConfigurationService,
-		@IFileService private readonly fileService: IFileService,
+		@IFileService protected readonly fileService: IFileService,
 		@IFilesConfigurationService private readonly filesConfigService: IFilesConfigurationService,
 		@IStorageService private readonly storageService: IStorageService,
 		@IExtensionService private readonly extensionService: IExtensionService,
 		@ITelemetryService private readonly telemetryService: ITelemetryService,
 		@IWorkspaceContextService private readonly workspaceService: IWorkspaceContextService,
-		@IPathService private readonly pathService: IPathService,
+		@IPathService protected readonly pathService: IPathService,
 		@IContextKeyService private readonly contextKeyService: IContextKeyService,
 		@IAgentPluginService private readonly agentPluginService: IAgentPluginService,
 		@IWorkspaceTrustManagementService private readonly workspaceTrustService: IWorkspaceTrustManagementService,