diff --git a/.eslintplugin/code-no-native-private.ts b/.eslintplugin/code-no-native-private.ts
new file mode 100644
index 00000000000..4d6be23b8f3
--- /dev/null
+++ b/.eslintplugin/code-no-native-private.ts
@@ -0,0 +1,33 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as eslint from 'eslint';
+
+export = new class ApiProviderNaming implements eslint.Rule.RuleModule {
+
+	readonly meta: eslint.Rule.RuleMetaData = {
+		messages: {
+			slow: 'Native private fields are much slower and should only be used when needed. Ignore this warning if you know what you are doing, use compile-time private otherwise. See https://github.com/microsoft/vscode/issues/185991#issuecomment-1614468158 for details',
+		}
+	};
+
+	create(context: eslint.Rule.RuleContext): eslint.Rule.RuleListener {
+
+		return {
+			['PropertyDefinition PrivateIdentifier']: (node: any) => {
+				context.report({
+					node,
+					messageId: 'slow'
+				});
+			},
+			['MethodDefinition PrivateIdentifier']: (node: any) => {
+				context.report({
+					node,
+					messageId: 'slow'
+				});
+			}
+		};
+	}
+};
diff --git a/.eslintrc.json b/.eslintrc.json
index c28784041b4..cb94d8b3b86 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -69,6 +69,7 @@
 			}
 		],
 		"local/code-translation-remind": "warn",
+		"local/code-no-native-private": "warn",
 		"local/code-no-nls-in-standalone-editor": "warn",
 		"local/code-no-standalone-editor": "warn",
 		"local/code-no-unexternalized-strings": "warn",
diff --git a/src/vs/editor/contrib/codeAction/browser/codeActionController.ts b/src/vs/editor/contrib/codeAction/browser/codeActionController.ts
index d441eef1d2e..384902ff004 100644
--- a/src/vs/editor/contrib/codeAction/browser/codeActionController.ts
+++ b/src/vs/editor/contrib/codeAction/browser/codeActionController.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { getDomNodePagePosition } from 'vs/base/browser/dom';
 import { IAnchor } from 'vs/base/browser/ui/contextview/contextview';
 import { IAction } from 'vs/base/common/actions';
diff --git a/src/vs/editor/contrib/codeAction/browser/codeActionModel.ts b/src/vs/editor/contrib/codeAction/browser/codeActionModel.ts
index 3979c4e4538..e36f94c275f 100644
--- a/src/vs/editor/contrib/codeAction/browser/codeActionModel.ts
+++ b/src/vs/editor/contrib/codeAction/browser/codeActionModel.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { CancelablePromise, createCancelablePromise, TimeoutTimer } from 'vs/base/common/async';
 import { isCancellationError } from 'vs/base/common/errors';
 import { Emitter } from 'vs/base/common/event';
diff --git a/src/vs/workbench/api/common/extHostCommands.ts b/src/vs/workbench/api/common/extHostCommands.ts
index c2053ac99fb..e8fc48765c7 100644
--- a/src/vs/workbench/api/common/extHostCommands.ts
+++ b/src/vs/workbench/api/common/extHostCommands.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { validateConstraint } from 'vs/base/common/types';
 import { ICommandHandlerDescription } from 'vs/platform/commands/common/commands';
 import * as extHostTypes from 'vs/workbench/api/common/extHostTypes';
diff --git a/src/vs/workbench/api/common/extHostDiagnostics.ts b/src/vs/workbench/api/common/extHostDiagnostics.ts
index 8e76e228758..91f90bc5f91 100644
--- a/src/vs/workbench/api/common/extHostDiagnostics.ts
+++ b/src/vs/workbench/api/common/extHostDiagnostics.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { localize } from 'vs/nls';
 import { IMarkerData, MarkerSeverity } from 'vs/platform/markers/common/markers';
 import { URI, UriComponents } from 'vs/base/common/uri';
diff --git a/src/vs/workbench/api/common/extHostExtensionService.ts b/src/vs/workbench/api/common/extHostExtensionService.ts
index 40e1f6cef51..6e5e3e2c100 100644
--- a/src/vs/workbench/api/common/extHostExtensionService.ts
+++ b/src/vs/workbench/api/common/extHostExtensionService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import * as nls from 'vs/nls';
 import * as path from 'vs/base/common/path';
 import * as performance from 'vs/base/common/performance';
diff --git a/src/vs/workbench/api/common/extHostSCM.ts b/src/vs/workbench/api/common/extHostSCM.ts
index 0280e5f2855..a8d22102648 100644
--- a/src/vs/workbench/api/common/extHostSCM.ts
+++ b/src/vs/workbench/api/common/extHostSCM.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { URI, UriComponents } from 'vs/base/common/uri';
 import { Event, Emitter } from 'vs/base/common/event';
 import { debounce } from 'vs/base/common/decorators';
diff --git a/src/vs/workbench/api/common/extHostSecrets.ts b/src/vs/workbench/api/common/extHostSecrets.ts
index cf324e43576..d1af02ed1a2 100644
--- a/src/vs/workbench/api/common/extHostSecrets.ts
+++ b/src/vs/workbench/api/common/extHostSecrets.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import type * as vscode from 'vscode';
 
 import { ExtHostSecretState } from 'vs/workbench/api/common/extHostSecretState';
diff --git a/src/vs/workbench/api/common/extHostStatusBar.ts b/src/vs/workbench/api/common/extHostStatusBar.ts
index a4864e16eae..7e8db34a599 100644
--- a/src/vs/workbench/api/common/extHostStatusBar.ts
+++ b/src/vs/workbench/api/common/extHostStatusBar.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { StatusBarAlignment as ExtHostStatusBarAlignment, Disposable, ThemeColor, asStatusBarItemIdentifier } from './extHostTypes';
 import type * as vscode from 'vscode';
 import { MainContext, MainThreadStatusBarShape, IMainContext, ICommandDto, ExtHostStatusBarShape, StatusBarItemDto } from './extHost.protocol';
diff --git a/src/vs/workbench/api/common/extHostTask.ts b/src/vs/workbench/api/common/extHostTask.ts
index 6fc4ada5e09..49d668916a7 100644
--- a/src/vs/workbench/api/common/extHostTask.ts
+++ b/src/vs/workbench/api/common/extHostTask.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { URI, UriComponents } from 'vs/base/common/uri';
 import { asPromise } from 'vs/base/common/async';
 import { Event, Emitter } from 'vs/base/common/event';
diff --git a/src/vs/workbench/api/common/extHostTesting.ts b/src/vs/workbench/api/common/extHostTesting.ts
index d17a5a2c76a..147394051c6 100644
--- a/src/vs/workbench/api/common/extHostTesting.ts
+++ b/src/vs/workbench/api/common/extHostTesting.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { mapFind } from 'vs/base/common/arrays';
 import { RunOnceScheduler } from 'vs/base/common/async';
 import { VSBuffer } from 'vs/base/common/buffer';
@@ -1090,4 +1092,3 @@ const profileGroupToBitset: { [K in TestRunProfileKind]: TestRunProfileBitset }
 	[TestRunProfileKind.Debug]: TestRunProfileBitset.Debug,
 	[TestRunProfileKind.Run]: TestRunProfileBitset.Run,
 };
-
diff --git a/src/vs/workbench/api/common/extHostTypes.ts b/src/vs/workbench/api/common/extHostTypes.ts
index b7c7df1f577..2647d41c5db 100644
--- a/src/vs/workbench/api/common/extHostTypes.ts
+++ b/src/vs/workbench/api/common/extHostTypes.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { asArray, coalesceInPlace, equals } from 'vs/base/common/arrays';
 import { illegalArgument } from 'vs/base/common/errors';
 import { IRelativePattern } from 'vs/base/common/glob';
diff --git a/src/vs/workbench/api/common/extHostWebview.ts b/src/vs/workbench/api/common/extHostWebview.ts
index 4755a00ed8a..9d65e82faa4 100644
--- a/src/vs/workbench/api/common/extHostWebview.ts
+++ b/src/vs/workbench/api/common/extHostWebview.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { VSBuffer } from 'vs/base/common/buffer';
 import { Emitter, Event } from 'vs/base/common/event';
 import { Schemas } from 'vs/base/common/network';
diff --git a/src/vs/workbench/api/common/extHostWebviewPanels.ts b/src/vs/workbench/api/common/extHostWebviewPanels.ts
index 189d350428b..c7f1717ebf5 100644
--- a/src/vs/workbench/api/common/extHostWebviewPanels.ts
+++ b/src/vs/workbench/api/common/extHostWebviewPanels.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { Emitter } from 'vs/base/common/event';
 import { Disposable } from 'vs/base/common/lifecycle';
 import { URI } from 'vs/base/common/uri';
diff --git a/src/vs/workbench/api/common/extHostWebviewView.ts b/src/vs/workbench/api/common/extHostWebviewView.ts
index d6ceadb2e7d..89ae50c50cf 100644
--- a/src/vs/workbench/api/common/extHostWebviewView.ts
+++ b/src/vs/workbench/api/common/extHostWebviewView.ts
@@ -13,6 +13,8 @@ import type * as vscode from 'vscode';
 import * as extHostProtocol from './extHost.protocol';
 import * as extHostTypes from './extHostTypes';
 
+/* eslint-disable local/code-no-native-private */
+
 class ExtHostWebviewView extends Disposable implements vscode.WebviewView {
 
 	readonly #handle: extHostProtocol.WebviewHandle;
diff --git a/src/vs/workbench/contrib/editSessions/browser/editSessionsStorageService.ts b/src/vs/workbench/contrib/editSessions/browser/editSessionsStorageService.ts
index 4f7b9def689..6f9c20338e7 100644
--- a/src/vs/workbench/contrib/editSessions/browser/editSessionsStorageService.ts
+++ b/src/vs/workbench/contrib/editSessions/browser/editSessionsStorageService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { Disposable } from 'vs/base/common/lifecycle';
 import { localize } from 'vs/nls';
 import { Action2, MenuId, MenuRegistry, registerAction2 } from 'vs/platform/actions/common/actions';
diff --git a/src/vs/workbench/contrib/interactive/browser/interactiveEditor.ts b/src/vs/workbench/contrib/interactive/browser/interactiveEditor.ts
index 205c787598c..c97adbabfe2 100644
--- a/src/vs/workbench/contrib/interactive/browser/interactiveEditor.ts
+++ b/src/vs/workbench/contrib/interactive/browser/interactiveEditor.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import 'vs/css!./media/interactive';
 import * as nls from 'vs/nls';
 import * as DOM from 'vs/base/browser/dom';
diff --git a/src/vs/workbench/contrib/interactive/browser/interactiveHistoryService.ts b/src/vs/workbench/contrib/interactive/browser/interactiveHistoryService.ts
index ad21831f2e6..f39479fa10f 100644
--- a/src/vs/workbench/contrib/interactive/browser/interactiveHistoryService.ts
+++ b/src/vs/workbench/contrib/interactive/browser/interactiveHistoryService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { HistoryNavigator2 } from 'vs/base/common/history';
 import { Disposable } from 'vs/base/common/lifecycle';
 import { ResourceMap } from 'vs/base/common/map';
diff --git a/src/vs/workbench/contrib/webviewPanel/browser/webviewWorkbenchService.ts b/src/vs/workbench/contrib/webviewPanel/browser/webviewWorkbenchService.ts
index d484930222e..263649a8b74 100644
--- a/src/vs/workbench/contrib/webviewPanel/browser/webviewWorkbenchService.ts
+++ b/src/vs/workbench/contrib/webviewPanel/browser/webviewWorkbenchService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { CancelablePromise, createCancelablePromise, DeferredPromise } from 'vs/base/common/async';
 import { CancellationToken, CancellationTokenSource } from 'vs/base/common/cancellation';
 import { memoize } from 'vs/base/common/decorators';
diff --git a/src/vs/workbench/services/remote/common/remoteAgentService.ts b/src/vs/workbench/services/remote/common/remoteAgentService.ts
index 3fc8be68725..868df20e8f4 100644
--- a/src/vs/workbench/services/remote/common/remoteAgentService.ts
+++ b/src/vs/workbench/services/remote/common/remoteAgentService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
 import { RemoteAgentConnectionContext, IRemoteAgentEnvironment } from 'vs/platform/remote/common/remoteAgentEnvironment';
 import { IChannel, IServerChannel } from 'vs/base/parts/ipc/common/ipc';
@@ -150,4 +152,3 @@ export const remoteConnectionLatencyMeasurer = new class {
 		return this.#lastMeasurement;
 	}
 };
-
diff --git a/src/vs/workbench/services/terminal/common/embedderTerminalService.ts b/src/vs/workbench/services/terminal/common/embedderTerminalService.ts
index d9174af00fe..52e52a85acd 100644
--- a/src/vs/workbench/services/terminal/common/embedderTerminalService.ts
+++ b/src/vs/workbench/services/terminal/common/embedderTerminalService.ts
@@ -3,6 +3,8 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+/* eslint-disable local/code-no-native-private */
+
 import { InstantiationType, registerSingleton } from 'vs/platform/instantiation/common/extensions';
 import { createDecorator } from 'vs/platform/instantiation/common/instantiation';
 import { Emitter, Event } from 'vs/base/common/event';