1 files changed, 2 insertions, 0 deletions
diff --git a/xC-proto b/xC-proto
index 54ca6b8..e985fdb 100644
--- a/xC-proto
+++ b/xC-proto
@@ -104,6 +104,8 @@ struct EventMessage {
 		} items<>;
 	case BUFFER_CLEAR:
 		string buffer_name;
+
+	// Restriction: command_seq is strictly increasing, across both of these.
 	case ERROR:
 		u32 command_seq;
 		string error;