diff --git a/examples/sk_agent.py b/examples/sk_agent.py
index 21714cca1..a7513e838 100644
--- a/examples/sk_agent.py
+++ b/examples/sk_agent.py
@@ -4,8 +4,6 @@
 @Time    : 2023/9/13 12:36
 @Author  : femto Zheng
 @File    : sk_agent.py
-@Modified By: mashenquan, 2023-11-1. According to Chapter 2.2.1 and 2.2.2 of RFC 116, change the data type of
-        the `cause_by` value in the `Message` to a string to support the new message distribution feature.
 """
 import asyncio