diff --git a/chatchat-server/chatchat/server/agent/tools_factory/search_local_knowledgebase.py b/chatchat-server/chatchat/server/agent/tools_factory/search_local_knowledgebase.py
index 1f83d94a..a34e8301 100644
--- a/chatchat-server/chatchat/server/agent/tools_factory/search_local_knowledgebase.py
+++ b/chatchat-server/chatchat/server/agent/tools_factory/search_local_knowledgebase.py
@@ -52,4 +52,4 @@ def search_local_knowledgebase(
     ''''''
     tool_config = get_tool_config("search_local_knowledgebase")
     ret = search_knowledgebase(query=query, database=database, config=tool_config)
-    return BaseToolOutput(ret, database=database)
+    return KBToolOutput(ret, database=database)
diff --git a/chatchat-server/chatchat/server/api_server/chat_routes.py b/chatchat-server/chatchat/server/api_server/chat_routes.py
index 11a561ff..f935ab9c 100644
--- a/chatchat-server/chatchat/server/api_server/chat_routes.py
+++ b/chatchat-server/chatchat/server/api_server/chat_routes.py
@@ -99,7 +99,7 @@ async def chat_completions(
                 "status": None,
             }
             header = [{**extra_json,
-                       "content": f"知识库参考资料：\n\n{tool_result}\n\n",
+                       "content": f"{tool_result}",
                        "tool_output":tool_result.data,
                        "is_ref": True,
                        }]
diff --git a/chatchat-server/chatchat/server/api_server/tool_routes.py b/chatchat-server/chatchat/server/api_server/tool_routes.py
index 7355d6b8..3093b40e 100644
--- a/chatchat-server/chatchat/server/api_server/tool_routes.py
+++ b/chatchat-server/chatchat/server/api_server/tool_routes.py
@@ -11,7 +11,7 @@ from chatchat.server.utils import BaseResponse, get_tool, get_tool_config
 tool_router = APIRouter(prefix="/tools", tags=["Toolkits"])
 
 
-@tool_router.get("/", response_model=BaseResponse)
+@tool_router.get("", response_model=BaseResponse)
 async def list_tools():
     tools = get_tool()
     data = {t.name: {
diff --git a/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py b/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py
index 4a9b3efb..2a12e3ee 100644
--- a/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py
+++ b/chatchat-server/chatchat/webui_pages/dialogue/dialogue.py
@@ -254,19 +254,21 @@ def dialogue_page(api: ApiRequest, is_lite: bool = False):
                     tool_choice=tool_choice,
                     extra_body=extra_body,
                 ):
-                print("\n\n", d.status, "\n", d, "\n\n")
+                # print("\n\n", d.status, "\n", d, "\n\n")
                 message_id = d.message_id
                 metadata = {
                     "message_id": message_id,
                 }
 
+                # clear initial message
+                if not started:
+                    chat_box.update_msg("", streaming=False)
+                    started = True
+
                 if d.status == AgentStatus.error:
                     st.error(d.choices[0].delta.content)
                 elif d.status == AgentStatus.llm_start:
-                    if not started:
-                        started = True
-                    else:
-                        chat_box.insert_msg("正在解读工具输出结果...")
+                    chat_box.insert_msg("正在解读工具输出结果...")
                     text = d.choices[0].delta.content or ""
                 elif d.status == AgentStatus.llm_new_token:
                     text += d.choices[0].delta.content or ""
diff --git a/chatchat-server/chatchat/webui_pages/utils.py b/chatchat-server/chatchat/webui_pages/utils.py
index 53fdb2fc..43836077 100644
--- a/chatchat-server/chatchat/webui_pages/utils.py
+++ b/chatchat-server/chatchat/webui_pages/utils.py
@@ -50,14 +50,6 @@ class ApiRequest:
                                             timeout=self.timeout)
         return self._client
 
-    def _check_url(self, url: str) -> str:
-        '''
-        新版 httpx 强制要求 url 以 / 结尾，否则会返回 307
-        '''
-        if not url.endswith("/"):
-            url = url + "/"
-        return url
-
     def get(
             self,
             url: str,
@@ -66,7 +58,6 @@ class ApiRequest:
             stream: bool = False,
             **kwargs: Any,
     ) -> Union[httpx.Response, Iterator[httpx.Response], None]:
-        url = self._check_url(url)
         while retry > 0:
             try:
                 if stream:
@@ -88,7 +79,6 @@ class ApiRequest:
             stream: bool = False,
             **kwargs: Any
     ) -> Union[httpx.Response, Iterator[httpx.Response], None]:
-        url = self._check_url(url)
         while retry > 0:
             try:
                 # print(kwargs)
@@ -111,7 +101,6 @@ class ApiRequest:
             stream: bool = False,
             **kwargs: Any
     ) -> Union[httpx.Response, Iterator[httpx.Response], None]:
-        url = self._check_url(url)
         while retry > 0:
             try:
                 if stream: