diff --git a/server/agent/tools/search_all_knowledge_more.py b/server/agent/tools/search_all_knowledge_more.py
index 332695b..5bbf60c 100644
--- a/server/agent/tools/search_all_knowledge_more.py
+++ b/server/agent/tools/search_all_knowledge_more.py
@@ -1,3 +1,4 @@
+from __future__ import annotations
 import json
 import re
 import warnings
@@ -265,7 +266,7 @@ class LLMKnowledgeChain(LLMChain):
             llm: BaseLanguageModel,
             prompt: BasePromptTemplate = PROMPT,
             **kwargs: Any,
-    ):
+    ) -> LLMKnowledgeChain:
         llm_chain = LLMChain(llm=llm, prompt=prompt)
         return cls(llm_chain=llm_chain, **kwargs)
 
diff --git a/server/agent/tools/search_all_knowledge_once.py b/server/agent/tools/search_all_knowledge_once.py
index a29eadf..98ad2bb 100644
--- a/server/agent/tools/search_all_knowledge_once.py
+++ b/server/agent/tools/search_all_knowledge_once.py
@@ -1,3 +1,4 @@
+from __future__ import annotations
 import re
 import warnings
 from typing import Dict
@@ -212,7 +213,7 @@ class LLMKnowledgeChain(LLMChain):
             llm: BaseLanguageModel,
             prompt: BasePromptTemplate = PROMPT,
             **kwargs: Any,
-    ):
+    ) -> LLMKnowledgeChain:
         llm_chain = LLMChain(llm=llm, prompt=prompt)
         return cls(llm_chain=llm_chain, **kwargs)
 
diff --git a/server/agent/tools/weather.py b/server/agent/tools/weather.py
index 2dba79b..3d99fb6 100644
--- a/server/agent/tools/weather.py
+++ b/server/agent/tools/weather.py
@@ -1,4 +1,10 @@
-## 使用和风天气API查询天气,这个模型仅仅对免费的API进行了适配，建议使用GPT4等高级模型进行适配
+from __future__ import annotations
+
+## 单独运行的时候需要添加
+import sys
+import os
+sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__)))))
+
 import re
 import warnings
 from typing import Dict
@@ -22,6 +28,8 @@ from server.agent import model_container
 KEY = "ac880e5a877042809ac7ffdd19d95b0d"
 #key长这样，这里提供了示例的key，这个key没法使用，你需要自己去注册和风天气的账号，然后在这里填入你的key
 
+
+
 _PROMPT_TEMPLATE = """
 用户会提出一个关于天气的问题，你的目标是拆分出用户问题中的区，市 并按照我提供的工具回答。
 例如 用户提出的问题是: 上海浦东未来1小时天气情况？
diff --git a/server/agent/tools_select.py b/server/agent/tools_select.py
index 314a218..9407b4d 100644
--- a/server/agent/tools_select.py
+++ b/server/agent/tools_select.py
@@ -68,4 +68,4 @@ tools = [
     ),
 ]
 
-tool_names = [tool.name for tool in tools]
+tool_names = [tool.name for tool in tools]
\ No newline at end of file