diff --git a/src/app/tui.py b/src/app/tui.py
index 14bba5c3cba308e6e68fc5cb977c9b1eda4372e2..8c451fcb3c9e733e9a0b830aef4992a02f324269 100644
--- a/src/app/tui.py
+++ b/src/app/tui.py
@@ -518,7 +518,8 @@ class IntelligentTerminal(App):
             # 立即恢复正常输入界面
             self._restore_normal_input()
             # 发送 MCP 响应并处理结果
-            task = asyncio.create_task(self._send_mcp_response(message.conversation_id, params=message.confirmed))
+            params = {"confirm": message.confirmed}
+            task = asyncio.create_task(self._send_mcp_response(message.conversation_id, params=params))
             self.background_tasks.add(task)
             task.add_done_callback(self._task_done_callback)
 
@@ -531,7 +532,7 @@ class IntelligentTerminal(App):
             # 立即恢复正常输入界面
             self._restore_normal_input()
             # 发送 MCP 响应并处理结果
-            params = message.params if message.params is not None else False
+            params = message.params if message.params is not None else {}
             task = asyncio.create_task(self._send_mcp_response(message.conversation_id, params=params))
             self.background_tasks.add(task)
             task.add_done_callback(self._task_done_callback)
@@ -1192,7 +1193,7 @@ class IntelligentTerminal(App):
             self._mcp_mode = "normal"
             self._current_mcp_conversation_id = ""
 
-    async def _send_mcp_response(self, conversation_id: str, *, params: bool | dict[str, Any]) -> None:
+    async def _send_mcp_response(self, conversation_id: str, *, params: dict[str, Any]) -> None:
         """发送 MCP 响应并处理结果"""
         output_container: Container | None = None
 
@@ -1236,7 +1237,7 @@ class IntelligentTerminal(App):
         self,
         conversation_id: str,
         *,
-        params: bool | dict[str, Any],
+        params: dict[str, Any],
         output_container: Container,
         llm_client: LLMClientBase,
     ) -> bool:
diff --git a/src/backend/hermes/client.py b/src/backend/hermes/client.py
index e82bb0fab003c914670e95d61723b7e3fe339720..b8667d0d49a5930e4309941a2cac745d1d5de9a5 100644
--- a/src/backend/hermes/client.py
+++ b/src/backend/hermes/client.py
@@ -303,13 +303,15 @@ class HermesChatClient(LLMClientBase):
         """
         return await self.agent_manager.get_available_agents()
 
-    async def send_mcp_response(self, conversation_id: str, *, params: bool | dict) -> AsyncGenerator[str, None]:
+    async def send_mcp_response(self, conversation_id: str, *, params: dict) -> AsyncGenerator[str, None]:
         """
         发送 MCP 响应并获取流式回复
 
         Args:
             conversation_id: 会话ID
-            params: 响应参数（bool 表示确认/取消，dict 表示参数补全）
+            params: 响应参数
+                - 对于 MCP 确认消息: {"confirm": true/false}
+                - 对于参数补全: 包含补全参数的字典
 
         Yields:
             str: 流式响应的文本内容
diff --git a/src/backend/hermes/models.py b/src/backend/hermes/models.py
index 0a9dc80bbbe2f3d2be295ad2c8f88326ed0dadb2..c23923c108601360b0764ff46546676f0529ef2c 100644
--- a/src/backend/hermes/models.py
+++ b/src/backend/hermes/models.py
@@ -66,7 +66,7 @@ class HermesApp:
         app_id: str,
         flow_id: str = "",
         *,
-        params: dict[str, Any] | bool | None = None,
+        params: dict[str, Any] | None = None,
     ) -> None:
         """
         初始化应用配置
@@ -74,7 +74,9 @@ class HermesApp:
         Args:
             app_id: 应用ID
             flow_id: 流ID
-            params: MCP 响应参数（bool 表示确认/取消，dict 表示参数补全内容）
+            params: MCP 响应参数
+                - 对于 MCP 确认消息: {"confirm": true/false}
+                - 对于参数补全: 包含补全参数的字典
 
         """
         self.app_id = app_id