diff --git a/agents-flex-core/src/main/java/com/agentsflex/core/util/SleepUtil.java b/agents-flex-core/src/main/java/com/agentsflex/core/util/SleepUtil.java
new file mode 100644
index 0000000..90d0206
--- /dev/null
+++ b/agents-flex-core/src/main/java/com/agentsflex/core/util/SleepUtil.java
@@ -0,0 +1,41 @@
+/*
+ *  Copyright (c) 2023-2025, Agents-Flex (fuhai999@gmail.com).
+ *  <p>
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *  <p>
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *  <p>
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package com.agentsflex.core.util;
+
+import java.util.concurrent.Callable;
+
+public class SleepUtil {
+
+    public static void sleep(long millis) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+        }
+    }
+
+    public static void sleep(long millis, Callable<Void> onInterrupt) {
+        try {
+            Thread.sleep(millis);
+        } catch (InterruptedException e) {
+            try {
+                onInterrupt.call();
+            } catch (Exception ex) {
+                throw new RuntimeException(ex);
+            }
+        }
+    }
+}