diff --git a/core/modules/node/src/NodePermissions.php b/core/modules/node/src/NodePermissions.php
index dca4671..fd28110 100644
--- a/core/modules/node/src/NodePermissions.php
+++ b/core/modules/node/src/NodePermissions.php
@@ -12,7 +12,7 @@
 use Drupal\node\Entity\NodeType;
 
 /**
- * Defines a class containing permission callbacks.
+ * Provides dynamic permissions for nodes of different types.
  */
 class NodePermissions {
 
@@ -20,7 +20,7 @@ class NodePermissions {
   use UrlGeneratorTrait;
 
   /**
-   * Gets an array of node type permissions.
+   * Returns an array of node type permissions.
    *
    * @return array
    *   The node type permissions.
@@ -37,13 +37,13 @@ public function nodeTypePermissions() {
   }
 
   /**
-   * Builds a standard list of node permissions for a given type.
+   * Returns a list of node permissions for a given node type.
    *
    * @param \Drupal\node\Entity\NodeType $type
-   *   The machine name of the node type.
+   *   The node type.
    *
    * @return array
-   *   An array of permission names and descriptions.
+   *   An associative array of permission names and descriptions.
    */
   protected function buildPermissions(NodeType $type) {
     $type_id = $type->id();