Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/modules/shortcut/shortcut.api.php

@@ -0,0 +1,44 @@
+<?php
+
+/**
+ * @file
+ * Hooks provided by the Shortcut module.
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Return the name of a default shortcut set for the provided user account.
+ *
+ * This hook allows modules to define default shortcut sets for a particular
+ * user that differ from the site-wide default (for example, a module may want
+ * to define default shortcuts on a per-role basis).
+ *
+ * The default shortcut set is used only when the user does not have any other
+ * shortcut set explicitly assigned to them.
+ *
+ * Note that only one default shortcut set can exist per user, so when multiple
+ * modules implement this hook, the last (i.e., highest weighted) module which
+ * returns a valid shortcut set name will prevail.
+ *
+ * @param $account
+ *   The user account whose default shortcut set is being requested.
+ * @return
+ *   The name of the shortcut set that this module recommends for that user, if
+ *   there is one.
+ */
+function hook_shortcut_default_set($account) {
+  // Use a special set of default shortcuts for administrators only.
+  $roles = \Drupal::entityManager()->getStorage('user_role')->loadByProperties(['is_admin' => TRUE]);
+  $user_admin_roles = array_intersect(array_keys($roles), $account->getRoles());
+  if ($user_admin_roles) {
+    return 'admin-shortcuts';
+  }
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */