diff -r 48c4eec2b7e6 -r 8c2e4d02f4ef wp/wp-includes/script-modules.php
--- a/wp/wp-includes/script-modules.php	Fri Sep 05 18:40:08 2025 +0200
+++ b/wp/wp-includes/script-modules.php	Fri Sep 05 18:52:52 2025 +0200
@@ -123,3 +123,53 @@
 function wp_deregister_script_module( string $id ) {
 	wp_script_modules()->deregister( $id );
 }
+
+/**
+ * Registers all the default WordPress Script Modules.
+ *
+ * @since 6.7.0
+ */
+function wp_default_script_modules() {
+	$suffix = defined( 'WP_RUN_CORE_TESTS' ) ? '.min' : wp_scripts_get_suffix();
+
+	/*
+	 * Expects multidimensional array like:
+	 *
+	 *     'interactivity/index.min.js' => array('dependencies' => array(…), 'version' => '…'),
+	 *     'interactivity/debug.min.js' => array('dependencies' => array(…), 'version' => '…'),
+	 *     'interactivity-router/index.min.js' => …
+	 */
+	$assets = include ABSPATH . WPINC . "/assets/script-modules-packages{$suffix}.php";
+
+	foreach ( $assets as $file_name => $script_module_data ) {
+		/*
+		 * Build the WordPress Script Module ID from the file name.
+		 * Prepend `@wordpress/` and remove extensions and `/index` if present:
+		 *   - interactivity/index.min.js  => @wordpress/interactivity
+		 *   - interactivity/debug.min.js  => @wordpress/interactivity/debug
+		 *   - block-library/query/view.js => @wordpress/block-library/query/view
+		 */
+		$script_module_id = '@wordpress/' . preg_replace( '~(?:/index)?(?:\.min)?\.js$~D', '', $file_name, 1 );
+
+		switch ( $script_module_id ) {
+			/*
+			 * Interactivity exposes two entrypoints, "/index" and "/debug".
+			 * "/debug" should replace "/index" in development.
+			 */
+			case '@wordpress/interactivity/debug':
+				if ( ! SCRIPT_DEBUG ) {
+					continue 2;
+				}
+				$script_module_id = '@wordpress/interactivity';
+				break;
+			case '@wordpress/interactivity':
+				if ( SCRIPT_DEBUG ) {
+					continue 2;
+				}
+				break;
+		}
+
+		$path = includes_url( "js/dist/script-modules/{$file_name}" );
+		wp_register_script_module( $script_module_id, $path, $script_module_data['dependencies'], $script_module_data['version'] );
+	}
+}