diff --git a/app/agent/tools/base.py b/app/agent/tools/base.py
index 155a43c8..ac95ce66 100644
--- a/app/agent/tools/base.py
+++ b/app/agent/tools/base.py
@@ -157,8 +157,8 @@ class MoviePilotTool(BaseTool, metaclass=ABCMeta):
             if explanation:
                 tool_message = explanation
 
-        # 发送工具执行过程消息
-        if self._stream_handler and self._stream_handler.is_streaming:
+        # 发送工具执行过程消息（流式传输且非最后终结工具时）
+        if self._stream_handler and self._stream_handler.is_streaming and not self.return_direct:
             if settings.AI_AGENT_VERBOSE:
                 if self._stream_handler.is_auto_flushing:
                     # 渠道支持编辑：工具消息追加到 buffer，由定时刷新推送
diff --git a/app/agent/tools/impl/send_voice_message.py b/app/agent/tools/impl/send_voice_message.py
index a07ee8ec..b4f27d15 100644
--- a/app/agent/tools/impl/send_voice_message.py
+++ b/app/agent/tools/impl/send_voice_message.py
@@ -30,6 +30,7 @@ class SendVoiceMessageTool(MoviePilotTool):
 
     name: str = "send_voice_message"
     sends_message: bool = True
+    return_direct: bool = True
     description: str = (
         "Send a voice reply to the current user. Use this only when the user explicitly asks for "
         "a voice reply or when spoken playback is clearly better than plain text. On channels "
diff --git a/tests/test_agent_tool_streaming.py b/tests/test_agent_tool_streaming.py
index 52021815..db57df2f 100644
--- a/tests/test_agent_tool_streaming.py
+++ b/tests/test_agent_tool_streaming.py
@@ -406,7 +406,9 @@ class TestAgentToolStreaming(unittest.TestCase):
             """运行指定渠道的语音发送工具。"""
             tool = SendVoiceMessageTool(session_id="session-1", user_id="10001")
             tool.set_message_attr(
-                channel=channel.value, source=f"{channel.name.lower()}-main", username="tester"
+                channel=channel.value,
+                source=f"{channel.name.lower()}-main",
+                username="tester",
             )
 
             with (
@@ -429,7 +431,9 @@ class TestAgentToolStreaming(unittest.TestCase):
             return result, synthesize_speech, async_post_message
 
         for channel in (MessageChannel.Telegram, MessageChannel.Feishu):
-            result, synthesize_speech, async_post_message = asyncio.run(_run(channel))
+            result, synthesize_speech, async_post_message = asyncio.run(
+                _run(channel)
+            )
             notification = async_post_message.await_args.args[0]
 
             self.assertEqual(result, "语音回复已发送")
@@ -437,6 +441,7 @@ class TestAgentToolStreaming(unittest.TestCase):
             self.assertEqual(notification.channel, channel)
             self.assertEqual(notification.voice_path, "/tmp/reply.opus")
             self.assertEqual(notification.voice_caption, "你好")
+            self.assertTrue(SendVoiceMessageTool.return_direct)
 
     def test_send_voice_message_falls_back_for_unsupported_channels(self):
         """校验不支持语音输出的渠道继续回退为文字消息。"""