From bfd1168453c6392bfe9fab5551792ba6a48638b8 Mon Sep 17 00:00:00 2001
From: Rainer Hahnekamp <rainer.hahnekamp@gmail.com>
Date: Mon, 19 Jan 2026 15:06:44 +0100
Subject: [PATCH] fix(devtools): hide symbol `DEVTOOL_FEATURE_NAMES` [backport
 v20, v21]

---
 .../ngrx-toolkit/src/lib/devtools/with-dev-tools-stub.ts | 9 ++++++---
 libs/ngrx-toolkit/src/lib/devtools/with-devtools.ts      | 5 +----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/libs/ngrx-toolkit/src/lib/devtools/with-dev-tools-stub.ts b/libs/ngrx-toolkit/src/lib/devtools/with-dev-tools-stub.ts
index 5cca40b..29b26a5 100644
--- a/libs/ngrx-toolkit/src/lib/devtools/with-dev-tools-stub.ts
+++ b/libs/ngrx-toolkit/src/lib/devtools/with-dev-tools-stub.ts
@@ -6,7 +6,10 @@ import { DEVTOOL_FEATURE_NAMES, withDevtools } from './with-devtools';
  */
 export const withDevToolsStub: typeof withDevtools = () =>
   signalStoreFeature(
-    withProps(() => ({
-      [DEVTOOL_FEATURE_NAMES]: [GLITCH_TRACKING_FEATURE],
-    })),
+    withProps(
+      () =>
+        ({
+          [DEVTOOL_FEATURE_NAMES]: [GLITCH_TRACKING_FEATURE],
+        }) as Record<string, never>,
+    ),
   );
diff --git a/libs/ngrx-toolkit/src/lib/devtools/with-devtools.ts b/libs/ngrx-toolkit/src/lib/devtools/with-devtools.ts
index 7bb0d21..fdd2fee 100644
--- a/libs/ngrx-toolkit/src/lib/devtools/with-devtools.ts
+++ b/libs/ngrx-toolkit/src/lib/devtools/with-devtools.ts
@@ -80,8 +80,5 @@ export function withDevtools(name: string, ...features: DevtoolsFeature[]) {
         },
       };
     }),
-  ) as SignalStoreFeature<
-    EmptyFeatureResult,
-    EmptyFeatureResult & { props: { [DEVTOOL_FEATURE_NAMES]: string[] } }
-  >;
+  ) as SignalStoreFeature<EmptyFeatureResult, EmptyFeatureResult>;
 }