diff --git a/includes/class-scheduler.php b/includes/class-scheduler.php
index 4291365..0373c3f 100644
--- a/includes/class-scheduler.php
+++ b/includes/class-scheduler.php
@@ -21,6 +21,11 @@ class Scheduler {
 		\add_action( 'activitypub_cleanup_followers', array( self::class, 'cleanup_followers' ) );
 	}
 
+	/**
+	 * Schedule all ActivityPub schedules.
+	 *
+	 * @return void
+	 */
 	public static function register_schedules() {
 		if ( ! \wp_next_scheduled( 'activitypub_update_followers' ) ) {
 			\wp_schedule_event( time(), 'hourly', 'activitypub_update_followers' );
@@ -31,6 +36,11 @@ class Scheduler {
 		}
 	}
 
+	/**
+	 * Unscedule all ActivityPub schedules.
+	 *
+	 * @return void
+	 */
 	public static function deregister_schedules() {
 		wp_unschedule_hook( 'activitypub_update_followers' );
 		wp_unschedule_hook( 'activitypub_cleanup_followers' );
diff --git a/includes/collection/class-followers.php b/includes/collection/class-followers.php
index 0fa4a6a..1d54fa2 100644
--- a/includes/collection/class-followers.php
+++ b/includes/collection/class-followers.php
@@ -406,9 +406,13 @@ class Followers {
 	}
 
 	/**
-	 * Undocumented function
+	 * Get all Followers that have not been updated for a given time
 	 *
-	 * @return void
+	 * @param enum $output     The output format, supported ARRAY_N, OBJECT and ACTIVITYPUB_OBJECT.
+	 * @param int  $number     Limits the result.
+	 * @param int  $older_than The time in seconds.
+	 *
+	 * @return mixed The Term list of Followers, the format depends on $output.
 	 */
 	public static function get_outdated_followers( $output = ARRAY_N, $number = 50, $older_than = 604800 ) {
 		$args = array(
@@ -449,6 +453,14 @@ class Followers {
 		}
 	}
 
+	/**
+	 * Get all Followers that had errors
+	 *
+	 * @param enum    $output The output format, supported ARRAY_N, OBJECT and ACTIVITYPUB_OBJECT
+	 * @param integer $number The number of Followers to return.
+	 *
+	 * @return mixed The Term list of Followers, the format depends on $output.
+	 */
 	public static function get_faulty_followers( $output = ARRAY_N, $number = 10 ) {
 		$args = array(
 			'taxonomy'   => self::TAXONOMY,