diff --git a/.wiki/_Sidebar.md b/.wiki/_Sidebar.md
index 5578acf..768d2c3 100644
--- a/.wiki/_Sidebar.md
+++ b/.wiki/_Sidebar.md
@@ -13,6 +13,7 @@
 * [Customization Guide](Customization-Guide)
 * [Extending the Plugin](Extending-the-Plugin)
 * [Coding Standards](Coding-Standards)
+* [Testing Framework](Testing-Framework)
 * [Release Process](Release-Process)
 
 ## AI Documentation
diff --git a/wp-plugin-starter-template.php b/wp-plugin-starter-template.php
index 64a57c1..a409b8f 100644
--- a/wp-plugin-starter-template.php
+++ b/wp-plugin-starter-template.php
@@ -31,11 +31,19 @@ if ( ! defined( 'WPINC' ) ) {
     die;
 }
 
+// Define plugin constants
+define( 'WP_PLUGIN_STARTER_TEMPLATE_FILE', __FILE__ );
+define( 'WP_PLUGIN_STARTER_TEMPLATE_PATH', plugin_dir_path( __FILE__ ) );
+define( 'WP_PLUGIN_STARTER_TEMPLATE_URL', plugin_dir_url( __FILE__ ) );
+define( 'WP_PLUGIN_STARTER_TEMPLATE_VERSION', '0.1.13' );
+
 // Load the main plugin class.
-require_once plugin_dir_path( __FILE__ ) . 'includes/class-plugin.php';
+require_once WP_PLUGIN_STARTER_TEMPLATE_PATH . 'includes/class-plugin.php';
+
+// Plugin is multisite compatible - see .wiki/Testing-Framework.md for testing instructions
 
 // Initialize the plugin and store the instance in a global variable.
-$wpst_plugin = new WPALLSTARS\PluginStarterTemplate\Plugin( __FILE__, '0.1.13' );
+$wpst_plugin = new WPALLSTARS\PluginStarterTemplate\Plugin( __FILE__, WP_PLUGIN_STARTER_TEMPLATE_VERSION );
 
 // Initialize the plugin.
 $wpst_plugin->init();