1 files changed, 3 insertions, 0 deletions
diff --git a/token.go b/token.go
index 74bf903..f704383 100644
--- a/token.go
+++ b/token.go
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
 package main
 
 import (