fix(agent): preserve historical tool styles

app/agent/callback/__init__.py

@@ -521,10 +521,9 @@ class StreamingHandler:
         live_summary = self._live_tool_summary
         visible_buffer = self._buffer
         live_start = len(self._buffer)
-        old_summary = None
 
         if live_summary and self._buffer[live_summary[0] :] == live_summary[1]:
-            live_start, _old_block, old_summary = live_summary
+            live_start, _old_block, _old_summary = live_summary
             visible_buffer = self._buffer[:live_start]
 
         if self._pending_tool_stats:
@@ -535,8 +534,8 @@ class StreamingHandler:
             return ""
 
         summary, summary_block = pending_summary
-        if old_summary:
-            self._tool_summaries.discard(old_summary)
+        # 保留历史摘要的样式登记。相同文案可能在不同工具批次重复出现，
+        # 删除旧字符串会让前一批已写入消息在后续编辑时失去富文本样式。
         self._tool_summaries.add(summary)
         self._buffer = visible_buffer + summary_block
         self._live_tool_summary = (len(visible_buffer), summary_block, summary)

app/agent/orchestrator.py

@@ -2275,8 +2275,6 @@ class MoviePilotAgent:
         def emit_visible_token(text: str) -> None:
             """只在真正产生可见答案时结束思考状态，再转发正文。"""
             nonlocal thinking_finished
-            if not text:
-                return
             if not thinking_finished:
                 finish_thinking = getattr(thinking_started, "thinking_finished", None)
                 if callable(finish_thinking):

tests/test_agent_tool_streaming.py

@@ -768,6 +768,32 @@ class TestAgentToolStreaming:
 
         assert rich_message == "正文内容\n\n> （执行了 1 条命令）\n\n后续结论"
 
+    def test_rich_message_keeps_previous_tool_summaries_styled_after_edits(self):
+        """Telegram 后续编辑时，重复文案的历史工具摘要仍应保持引用样式。"""
+        handler = StreamingHandler()
+        handler._channel = NotificationChannel.Telegram.value
+        handler._streaming_enabled = True
+        handler._can_stream = lambda: True
+
+        for _ in range(3):
+            handler.record_tool_call(
+                tool_name="execute_command",
+                tool_message="执行命令",
+                tool_kwargs={},
+            )
+        handler.emit("第一批完成")
+        for _ in range(4):
+            handler.record_tool_call(
+                tool_name="execute_command",
+                tool_message="执行命令",
+                tool_kwargs={},
+            )
+
+        rich_message = handler._get_rich_message(handler._buffer)
+
+        assert "> （执行了 3 条命令）" in rich_message
+        assert "> （执行了 4 条命令）" in rich_message
+
     def test_rich_message_returns_none_for_non_telegram_channels(self):
         """校验非 Telegram 渠道不启用富文本，摘要保持原有纯文本格式。"""
         handler = StreamingHandler()