diff --git a/app/Config/Publisher.php b/app/Config/Publisher.php
index 47475112c080..bf03be1db7e0 100644
--- a/app/Config/Publisher.php
+++ b/app/Config/Publisher.php
@@ -19,7 +19,7 @@ class Publisher extends BasePublisher
      * result in a PublisherException. Files that do no fit the
      * pattern will cause copy/merge to fail.
      *
-     * @var array<string,string>
+     * @var array<string, string>
      */
     public $restrictions = [
         ROOTPATH => '*',
diff --git a/system/Autoloader/FileLocator.php b/system/Autoloader/FileLocator.php
index 05fcc9b2e715..e3821c1df27e 100644
--- a/system/Autoloader/FileLocator.php
+++ b/system/Autoloader/FileLocator.php
@@ -119,6 +119,10 @@ public function locateFile(string $file, ?string $folder = null, string $ext = '
      */
     public function getClassname(string $file): string
     {
+        if (is_dir($file)) {
+            return '';
+        }
+
         $php       = file_get_contents($file);
         $tokens    = token_get_all($php);
         $dlm       = false;
diff --git a/system/Config/Publisher.php b/system/Config/Publisher.php
index fa04e24cd28f..d5f938e09be3 100644
--- a/system/Config/Publisher.php
+++ b/system/Config/Publisher.php
@@ -26,7 +26,7 @@ class Publisher extends BaseConfig
      * result in a PublisherException. Files that do no fit the
      * pattern will cause copy/merge to fail.
      *
-     * @var array<string,string>
+     * @var array<string, string>
      */
     public $restrictions = [
         ROOTPATH => '*',
diff --git a/system/Config/Routing.php b/system/Config/Routing.php
index 409bcf099f65..e6d25138f8f0 100644
--- a/system/Config/Routing.php
+++ b/system/Config/Routing.php
@@ -24,7 +24,7 @@ class Routing extends BaseConfig
      * Default: APPPATH . 'Config/Routes.php'
      */
     public array $routeFiles = [
-        APPPATH . 'Routes.php',
+        APPPATH . 'Config/Routes.php',
     ];
 
     /**
@@ -95,4 +95,17 @@ class Routing extends BaseConfig
      * Default: false
      */
     public bool $prioritize = false;
+
+    /**
+     * Map of URI segments and namespaces. For Auto Routing (Improved).
+     *
+     * The key is the first URI segment. The value is the controller namespace.
+     * E.g.,
+     *   [
+     *       'blog' => 'Acme\Blog\Controllers',
+     *   ]
+     *
+     * @var array [ uri_segment => namespace ]
+     */
+    public array $moduleRoutes = [];
 }
diff --git a/tests/system/Autoloader/FileLocatorTest.php b/tests/system/Autoloader/FileLocatorTest.php
index 14c512493d26..53d8e8f2e6eb 100644
--- a/tests/system/Autoloader/FileLocatorTest.php
+++ b/tests/system/Autoloader/FileLocatorTest.php
@@ -313,4 +313,12 @@ public function testGetClassNameFromNonClassFile(): void
             $this->locator->getClassname(SYSTEMPATH . 'bootstrap.php')
         );
     }
+
+    public function testGetClassNameFromDirectory(): void
+    {
+        $this->assertSame(
+            '',
+            $this->locator->getClassname(SYSTEMPATH)
+        );
+    }
 }