diff --git a/core/lib/Drupal/Core/Menu/LocalTaskInterface.php b/core/lib/Drupal/Core/Menu/LocalTaskInterface.php
index 4a2b351..381d464 100644
--- a/core/lib/Drupal/Core/Menu/LocalTaskInterface.php
+++ b/core/lib/Drupal/Core/Menu/LocalTaskInterface.php
@@ -11,6 +11,10 @@
 
 /**
  * Defines an interface for menu local tasks.
+ *
+ * Menu local tasks are typically rendered as navigation tabs above the
+ * content region though other presentations are possible. It is convention
+ * that the title of these tasks should be short verbs if possible.
  */
 interface LocalTaskInterface {