diff --git a/scripts/check-native-shells.mjs b/scripts/check-native-shells.mjs
index 4e40a4f20..3830782d4 100644
--- a/scripts/check-native-shells.mjs
+++ b/scripts/check-native-shells.mjs
@@ -14,13 +14,11 @@ const developmentWorkflowDocPath =
   'docs/project-memory/shared-memory/development-workflow.md';
 const decisionLogDocPath = 'docs/project-memory/shared-memory/decision-log.md';
 const rootPackageJson = JSON.parse(fs.readFileSync('package.json', 'utf8'));
-const mobileShellConfigCheckSource = fs.readFileSync(
-  'apps/mobile-shell/scripts/check-config.mjs',
-  'utf8',
+const mobileShellConfigCheckSource = normalizeSourceForGuardrail(
+  fs.readFileSync('apps/mobile-shell/scripts/check-config.mjs', 'utf8'),
 );
-const desktopShellConfigCheckSource = fs.readFileSync(
-  'apps/desktop-shell/scripts/check-config.mjs',
-  'utf8',
+const desktopShellConfigCheckSource = normalizeSourceForGuardrail(
+  fs.readFileSync('apps/desktop-shell/scripts/check-config.mjs', 'utf8'),
 );
 const aiGameCreatorShellAppSource = fs.readFileSync(
   'apps/ai-game-creator-shell/src/App.tsx',
@@ -152,6 +150,14 @@ function readSourceTree(entryPath, extension) {
   return fs.readFileSync(entryPath, 'utf8');
 }
 
+function normalizeSourceForGuardrail(source) {
+  return source
+    .replace(/\s+/g, ' ')
+    .replace(/\s*([(),])\s*/g, '$1')
+    .replace(/,\s*\)/g, ')')
+    .trim();
+}
+
 function assertRootNativeShellCheckScripts() {
   if (
     rootPackageJson.scripts?.['check:native-shells'] !==
@@ -187,7 +193,11 @@ function assertNativeShellDependencyVersionGuardrails() {
     "'eas-cli': '^20.3.0'",
     "assertPackageLockVersion('apps/mobile-shell', 'eas-cli', '20.3.0')",
   ]) {
-    if (!mobileShellConfigCheckSource.includes(snippet)) {
+    if (
+      !mobileShellConfigCheckSource.includes(
+        normalizeSourceForGuardrail(snippet),
+      )
+    ) {
       throw new Error(
         `mobile shell dependency guardrail drifted: missing ${snippet}`,
       );
@@ -211,7 +221,11 @@ function assertNativeShellDependencyVersionGuardrails() {
     "['tauri', '2.11.2']",
     'tauri-plugin-single-instance = { version = "2.4.2", features = ["deep-link"] }',
   ]) {
-    if (!desktopShellConfigCheckSource.includes(snippet)) {
+    if (
+      !desktopShellConfigCheckSource.includes(
+        normalizeSourceForGuardrail(snippet),
+      )
+    ) {
       throw new Error(
         `desktop shell dependency guardrail drifted: missing ${snippet}`,
       );