diff --git a/internal/doctor/rig_beads_check.go b/internal/doctor/rig_beads_check.go
index e88a5f835d..5ff25ff25c 100644
--- a/internal/doctor/rig_beads_check.go
+++ b/internal/doctor/rig_beads_check.go
@@ -1,3 +1,6 @@
+// rig_beads_check.go - Doctor check ensuring all rigs have identity beads.
+// Can detect and auto-fix missing rig beads via 'gt doctor --fix'.
+
 package doctor
 
 import (