diff --git a/core/modules/filter/lib/Drupal/filter/Annotation/Filter.php b/core/modules/filter/lib/Drupal/filter/Annotation/Filter.php
index a8379eb..a14b72f 100644
--- a/core/modules/filter/lib/Drupal/filter/Annotation/Filter.php
+++ b/core/modules/filter/lib/Drupal/filter/Annotation/Filter.php
@@ -16,11 +16,69 @@
  */
 class Filter extends Plugin {
 
+  /**
+   * The plugin ID.
+   *
+   * @var string
+   */
+  public $id;
+
+  /**
+   * The name of the module providing the type.
+   *
+   * @var string
+   */
+  public $module;
+
+  /**
+   * The human-readable name of the filter.
+   *
+   * This is used as an administrative summary of what the filter does.
+   *
+   * @ingroup plugin_translatable
+   *
+   * @var \Drupal\Core\Annotation\Translation
+   */
   public $title;
+
+  /**
+   * Additional administrative information about the filter's behavior.
+   *
+   * @ingroup plugin_translatable
+   *
+   * @var \Drupal\Core\Annotation\Translation (optional)
+   */
   public $description = '';
+
+  /**
+   * A default weight for the filter in new text formats.
+   *
+   * @var int (optional)
+   */
   public $weight = 0;
+
+  /**
+   * Whether this filter is enabled or disabled by default.
+   *
+   * @var bool (optional)
+   */
   public $status = FALSE;
+
+  /**
+   * Specifies whether the filtered text can be cached.
+   *
+   * Note that setting this to FALSE makes the entire text format not cacheable,
+   * which may have an impact on the site's overall performance.
+   *
+   * @var bool (optional)
+   */
   public $cache = TRUE;
+
+  /**
+   * The default settings for the filter.
+   *
+   * @var array (optional)
+   */
   public $settings = array();
 
 }