diff --git a/scripts/check-native-shells.mjs b/scripts/check-native-shells.mjs
index 300b2bdcc..049678edd 100644
--- a/scripts/check-native-shells.mjs
+++ b/scripts/check-native-shells.mjs
@@ -2853,6 +2853,18 @@ function assertNativeShellCapabilityPlan() {
     'apps/desktop-shell/src-tauri/src/shell/events.rs',
     'utf8',
   );
+  const mobileDispatchTestSource = fs.readFileSync(
+    'apps/mobile-shell/src/host-bridge/dispatch.test.ts',
+    'utf8',
+  );
+  const mobileBridgeTestSource = fs.readFileSync(
+    'apps/mobile-shell/src/host-bridge/bridge.test.ts',
+    'utf8',
+  );
+  const desktopDispatchSource = fs.readFileSync(
+    'apps/desktop-shell/src-tauri/src/host_bridge/dispatch.rs',
+    'utf8',
+  );
   const wechatProtocol = requireCommonJsModule(
     'miniprogram/host-bridge/protocol.js',
   );
@@ -2888,6 +2900,42 @@ function assertNativeShellCapabilityPlan() {
     sharedDesktopCapabilities,
     'desktop shell runtime capability profile',
   );
+  for (const [source, label, snippets] of [
+    [
+      mobileDispatchTestSource,
+      'mobile dispatch undeclared method test',
+      [
+        'HOST_BRIDGE_METHODS.filter',
+        '!HOST_BRIDGE_EXPO_MOBILE_IOS_CAPABILITIES.includes(method)',
+        "expect(response.error.code).toBe('unsupported_method')",
+      ],
+    ],
+    [
+      mobileBridgeTestSource,
+      'mobile bridge undeclared method test',
+      [
+        'HOST_BRIDGE_METHODS.filter',
+        '!HOST_BRIDGE_EXPO_MOBILE_IOS_CAPABILITIES.includes(method)',
+        "expect(failedResponse.error.code).toBe('unsupported_method')",
+      ],
+    ],
+  ]) {
+    for (const snippet of snippets) {
+      if (!source.includes(snippet)) {
+        throw new Error(`${label} must derive unsupported methods from shared method list`);
+      }
+    }
+  }
+  for (const snippet of [
+    'HOST_BRIDGE_METHODS\n            .iter()',
+    '.filter(|method| !desktop_capabilities.contains(method))',
+    'let response = resolve_host_bridge_request(request(method));',
+    'assert_eq!(error.code, "unsupported_method");',
+  ]) {
+    if (!desktopDispatchSource.includes(snippet)) {
+      throw new Error('desktop dispatch test must derive unsupported methods from Rust capability list');
+    }
+  }
 
   assertSameList(
     extractDocumentMethodTable(planSource),