feat(agent): add ToolTag-based tags to all agent tools; implement tags.py for unified tool capability tagging

tests/test_agent_tool_streaming.py

@@ -9,6 +9,7 @@ if not hasattr(langchain_agents, "create_agent"):
     langchain_agents.create_agent = lambda *args, **kwargs: None
 
 from app.agent.callback import StreamingHandler
+from app.agent.middleware.subagents import is_subagent_stream_metadata
 from app.agent.tools.base import MoviePilotTool
 from app.agent.tools.impl.send_voice_message import SendVoiceMessageTool
 from app.api.endpoints.openai import _OpenAIStreamingHandler
@@ -114,6 +115,36 @@ class TestAgentToolStreaming(unittest.TestCase):
             "处理中：\n\n（执行了 2 次搜索，读取了 2 个文件）\n\n继续分析",
         )
 
+    def test_non_verbose_tool_summary_counts_subagents(self):
+        async def _run():
+            handler = StreamingHandler()
+            await handler.start_streaming()
+            handler.emit("处理中：")
+            handler.record_tool_call(
+                tool_name="task",
+                tool_message="Subagent invoked",
+                tool_kwargs={"subagent_type": "media-researcher"},
+            )
+            handler.record_tool_call(
+                tool_name="task",
+                tool_message="Subagent invoked",
+                tool_kwargs={"subagent_type": "resource-searcher"},
+            )
+            return await handler.take()
+
+        buffered_message = asyncio.run(_run())
+
+        self.assertEqual(buffered_message, "处理中：\n\n（已调用 2 个子代理）\n\n")
+
+    def test_subagent_stream_metadata_is_suppressed(self):
+        self.assertTrue(
+            is_subagent_stream_metadata(
+                {"metadata": {"ls_agent_type": "subagent"}}
+            )
+        )
+        self.assertTrue(is_subagent_stream_metadata({"lc_agent_name": "media-researcher"}))
+        self.assertFalse(is_subagent_stream_metadata({"lc_agent_name": "main"}))
+
     def test_openai_streaming_handler_flushes_pending_summary_to_queue(self):
         async def _run():
             handler = _OpenAIStreamingHandler()