fix: 修复打个招呼的bug

api/agents/conversation_agent.py

@@ -133,8 +133,9 @@ class ConversationAgent:
 
             await self._save_message(conversation_id, "ai", response_text)
 
+            # 最多 2 段，防止 LLM 自问自答
             messages = [msg.strip() for msg in response_text.split("[SPLIT]") if msg.strip()]
-            return messages[:3] if messages else [response_text]
+            return messages[:2] if messages else [response_text]
         except Exception as e:
             logger.error(f"生成资料收集开场白失败: {e}")
             return ["你好！在我们开始聊人生故事之前，能先简单介绍一下你自己吗？比如你是哪一年出生的？"]
@@ -169,8 +170,9 @@ class ConversationAgent:
 
             await self._save_message(conversation_id, "ai", response_text)
 
+            # 最多 2 段：问候 + 问题，防止 LLM 自问自答
             messages = [msg.strip() for msg in response_text.split("[SPLIT]") if msg.strip()]
-            return messages[:3] if messages else [response_text]
+            return messages[:2] if messages else [response_text]
         except Exception as e:
             logger.error(f"生成开场白失败: {e}", exc_info=True)
             return ["你好呀～ 有空聊聊你的人生故事吗？你童年里印象最深的一件事是什么？"]

api/agents/prompts/conversation_prompts.py

@@ -204,7 +204,8 @@ def get_opening_prompt(
 
 ## 回复格式
 - 可以分成 2 条消息，用 [SPLIT] 分隔：第一条问候，第二条问题；或合并成一条「问候 + 问题」。
-- 禁止输出括号、注释、思考过程。
+- **严禁**输出括号、注释、思考过程。
+- **严禁**模拟或虚构用户的回答。你只能输出「你的问候 + 你的问题」，不能替用户回答，不能自问自答。最多 2 段（问候 + 问题），禁止更多。
 
 示例（仅供参考风格）：
 "你好呀～ 有空的话想听听你的人生故事。你小时候是在哪儿长大的？那边有什么特别让你怀念的？"

api/routers/websocket.py

@@ -478,31 +478,32 @@ async def websocket_endpoint(
                     return
             
             
-            # 首次连接时检查资料完整性，发送资料收集开场白
+            # 首次连接时检查：若 Redis 已有历史（用户曾进入过此对话），不再发送开场白，避免重复/自问自答
-            missing_profile = _get_missing_profile_fields(user)
+            history = await redis_service.get_conversation_history(conversation_id)
-            if missing_profile:
+            if not history:
-                try:
+                # 空对话：发送开场白（资料收集或正式访谈）
-                    greetings = await manager.conversation_agent.generate_profile_greeting(
+                missing_profile = _get_missing_profile_fields(user)
-                        conversation_id=conversation_id,
+                if missing_profile:
-                        missing_fields=missing_profile,
+                    try:
-                        nickname=user.nickname or "",
+                        greetings = await manager.conversation_agent.generate_profile_greeting(
-                    )
+                            conversation_id=conversation_id,
-                    import asyncio as _asyncio_greet
+                            missing_fields=missing_profile,
-                    for i, text in enumerate(greetings):
+                            nickname=user.nickname or "",
-                        await manager.send_message(conversation_id, {
+                        )
-                            "type": MessageType.AGENT_RESPONSE,
+                        import asyncio as _asyncio_greet
-                            "conversation_id": conversation_id,
+                        for i, text in enumerate(greetings):
-                            "data": {"text": text, "index": i, "total": len(greetings)},
+                            await manager.send_message(conversation_id, {
-                            "timestamp": datetime.now(timezone.utc).isoformat()
+                                "type": MessageType.AGENT_RESPONSE,
-                        })
+                                "conversation_id": conversation_id,
-                        if i < len(greetings) - 1:
+                                "data": {"text": text, "index": i, "total": len(greetings)},
-                            await _asyncio_greet.sleep(0.5)
+                                "timestamp": datetime.now(timezone.utc).isoformat()
-                except Exception as e:
+                            })
-                    logger.error(f"发送资料收集开场白失败: {e}", exc_info=True)
+                            if i < len(greetings) - 1:
-            else:
+                                await _asyncio_greet.sleep(0.5)
-                # 资料已完整：若为空对话（用户通过「打个招呼」进入），AI 先开口提问
+                    except Exception as e:
-                history = await redis_service.get_conversation_history(conversation_id)
+                        logger.error(f"发送资料收集开场白失败: {e}", exc_info=True)
-                if not history:
+                else:
+                    # 资料已完整：AI 先开口提问
                     try:
                         state = await get_or_create_state(user_id, db)
                         user_profile_context = format_user_profile_context(

api/tests/test_websocket_baseline.py

@@ -99,6 +99,7 @@ class _FakeManager:
         )
         self.conversation_agent = SimpleNamespace(
             generate_profile_greeting=AsyncMock(return_value=[]),
+            generate_opening_message=AsyncMock(return_value=[]),
         )
 
     async def connect(self, websocket, conversation_id):
@@ -147,6 +148,15 @@ def _db_provider(db):
     return _provider
 
 
+def _redis_empty_history_patch():
+    """Patch redis to return empty history so websocket sends opening (or skips if mocked)."""
+    return patch.object(
+        ws_router.redis_service,
+        "get_conversation_history",
+        new=AsyncMock(return_value=[]),
+    )
+
+
 class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
     async def test_invalid_token_closes_connection(self):
         websocket = _FakeWebSocket(messages=[], token="invalid")
@@ -183,6 +193,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -235,6 +246,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -296,6 +308,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch.object(ws_router, "process_user_message", process_user_message_mock)
             )
@@ -339,6 +352,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch.object(
                     ws_router,
@@ -383,6 +397,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch.object(ws_router.asr_service, "transcribe", transcribe_mock)
             )
@@ -428,6 +443,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -503,6 +519,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -579,6 +596,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -652,6 +670,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -714,6 +733,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -775,6 +795,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -848,6 +869,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )
@@ -927,6 +949,7 @@ class WebSocketBaselineTest(unittest.IsolatedAsyncioTestCase):
                 patch.object(ws_router, "get_async_db", _db_provider(fake_db))
             )
             stack.enter_context(patch.object(ws_router, "manager", fake_manager))
+            stack.enter_context(_redis_empty_history_patch())
             stack.enter_context(
                 patch("routers.quota.get_segment_count", new=AsyncMock(return_value=0))
             )