diff --git a/cmd/root/user_agent_command_exec_id.go b/cmd/root/user_agent_command_exec_id.go
index b2b421812..dd165380a 100644
--- a/cmd/root/user_agent_command_exec_id.go
+++ b/cmd/root/user_agent_command_exec_id.go
@@ -8,5 +8,7 @@ import (
 )
 
 func withCommandExecIdInUserAgent(ctx context.Context) context.Context {
+	// A UUID that will allow us to correlate multiple API requests made by
+	// the same CLI invocation.
 	return useragent.InContext(ctx, "cmd-exec-id", command.ExecId(ctx))
 }