diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index c51b8869f109d0df05af4cef95db7cc1eea7ca24..a5b18278801ed1f8835cd19677caea8215ca6575 100755
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -2,7 +2,12 @@
 
 /**
  * @file
- * This script runs Drupal tests from command line.
+ * Script for running tests on DrupalCI.
+ *
+ * This script is intended for use only by drupal.org's testing. In general,
+ * tests should be run directly with phpunit.
+ *
+ * @internal
  */
 
 use Drupal\Component\FileSystem\FileSystem;