diff --git a/pkg/plugin/events.py b/pkg/plugin/events.py
index 0d21391d..e5b9fb04 100644
--- a/pkg/plugin/events.py
+++ b/pkg/plugin/events.py
@@ -157,20 +157,6 @@ class NormalMessageResponded(BaseEventModel):
     """回复消息组件列表"""
 
 
-class ConversationFirstMessageReceived(BaseEventModel):
-    """会话中收到第一条消息时触发"""
-    
-    session_name: str
-
-    session: core_entities.Session
-
-    default_prompt: str
-
-
-SessionFirstMessageReceived = ConversationFirstMessageReceived
-"""[过时]"""
-
-
 class SessionExplicitReset(BaseEventModel):
     """会话被显式重置时触发"""
 
@@ -189,18 +175,6 @@ class SessionExpired(BaseEventModel):
     session_expire_time: int
 
 
-class KeyExceeded(BaseEventModel):
-    """[过时]会话中使用的Key超过限制时触发"""
-
-    key_name: str
-
-
-class KeySwitched(BaseEventModel):
-    """[过时]会话中使用的Key切换时触发"""
-
-    key_name: str
-
-
 class PromptPreProcessing(BaseEventModel):
     """会话中的Prompt预处理时触发"""