diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonSerializable.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonSerializable.java
new file mode 100644
index 000000000..38e2c36ec
--- /dev/null
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/gson/JsonSerializable.java
@@ -0,0 +1,32 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2025 huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl.util.gson;
+
+import java.lang.annotation.*;
+
+/// Marks a class as being serialized/deserialized by Gson.
+/// This annotation is not retained at runtime and only serves as a reminder to developers not to change field names arbitrarily.
+///
+/// TODO: Add this annotation to all classes in the HMCL project that need to be serialized/deserialized.
+///
+/// @author Glavo
+@Documented
+@Retention(RetentionPolicy.SOURCE)
+@Target(ElementType.TYPE)
+public @interface JsonSerializable {
+}