diff --git a/apps/mobile-shell/scripts/check-config.mjs b/apps/mobile-shell/scripts/check-config.mjs
index 47e8717b4..4c6703aef 100644
--- a/apps/mobile-shell/scripts/check-config.mjs
+++ b/apps/mobile-shell/scripts/check-config.mjs
@@ -2368,6 +2368,14 @@ for (const snippet of [
   }
 }
 
+if (filesSource.includes('console.warn(`mobile HostBridge file failed for ${label}`, error)')) {
+  throw new Error('mobile shell file diagnostics must not log native error objects');
+}
+
+if (!filesSource.includes('console.warn(`mobile HostBridge file failed for ${label}`)')) {
+  throw new Error('mobile shell file diagnostics must use stable label-only logging');
+}
+
 if (
   !dispatchSource.includes('exportMobileHostBridgeTextFile(request)') ||
   !dispatchSource.includes('importMobileHostBridgeTextFile(request)') ||
diff --git a/apps/mobile-shell/src/host-bridge/files.test.ts b/apps/mobile-shell/src/host-bridge/files.test.ts
index fb52703d8..12ef4219a 100644
--- a/apps/mobile-shell/src/host-bridge/files.test.ts
+++ b/apps/mobile-shell/src/host-bridge/files.test.ts
@@ -222,7 +222,6 @@ describe('mobile HostBridge file actions', () => {
     expect(shareAsyncMock).not.toHaveBeenCalled();
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for sharing.available',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -252,7 +251,6 @@ describe('mobile HostBridge file actions', () => {
     ]);
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for sharing.open',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -329,7 +327,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for document_picker.open',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -357,7 +354,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for file.read_text',
-      expect.any(Error),
     );
     warnSpy.mockRestore();
   });
@@ -386,7 +382,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for file.read_base64',
-      expect.any(Error),
     );
     warnSpy.mockRestore();
   });
@@ -414,7 +409,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for file.read_base64',
-      expect.any(Error),
     );
     warnSpy.mockRestore();
   });
@@ -498,7 +492,6 @@ describe('mobile HostBridge file actions', () => {
     expect(imageLibraryMock).not.toHaveBeenCalled();
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for image.library_permission',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -520,7 +513,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for image.library_open',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -537,7 +529,6 @@ describe('mobile HostBridge file actions', () => {
     expect(cameraMock).not.toHaveBeenCalled();
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for image.camera_permission',
-      error,
     );
     warnSpy.mockRestore();
   });
@@ -559,7 +550,6 @@ describe('mobile HostBridge file actions', () => {
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile HostBridge file failed for image.camera_open',
-      error,
     );
     warnSpy.mockRestore();
   });
diff --git a/apps/mobile-shell/src/host-bridge/files.ts b/apps/mobile-shell/src/host-bridge/files.ts
index 3b44ca19f..f1e85ab95 100644
--- a/apps/mobile-shell/src/host-bridge/files.ts
+++ b/apps/mobile-shell/src/host-bridge/files.ts
@@ -51,8 +51,8 @@ import {
 } from './filePayloads';
 import { invalidRequest, ok } from './protocol';
 
-function logMobileHostBridgeFileFailure(label: string, error: unknown) {
-  console.warn(`mobile HostBridge file failed for ${label}`, error);
+function logMobileHostBridgeFileFailure(label: string, _error: unknown) {
+  console.warn(`mobile HostBridge file failed for ${label}`);
 }
 
 type MobileDocumentPickerOptions = Parameters<