diff --git a/api/controllers/console/workspace/tool_providers.py b/api/controllers/console/workspace/tool_providers.py
index 162e74b3a1..e41375e52b 100644
--- a/api/controllers/console/workspace/tool_providers.py
+++ b/api/controllers/console/workspace/tool_providers.py
@@ -807,7 +807,7 @@ class ToolOAuthCustomClient(Resource):
                 tenant_id=current_user.current_tenant_id, provider=provider
             )
         )
-    
+
     @setup_required
     @login_required
     @account_initialization_required
@@ -845,6 +845,7 @@ class ToolBuiltinProviderGetCredentialInfoApi(Resource):
             )
         )
 
+
 class ToolProviderMCPApi(Resource):
     @setup_required
     @login_required
diff --git a/api/controllers/inner_api/plugin/plugin.py b/api/controllers/inner_api/plugin/plugin.py
index 6c4500af50..5dfe41eb6b 100644
--- a/api/controllers/inner_api/plugin/plugin.py
+++ b/api/controllers/inner_api/plugin/plugin.py
@@ -175,7 +175,7 @@ class PluginInvokeToolApi(Resource):
                     provider=payload.provider,
                     tool_name=payload.tool,
                     tool_parameters=payload.tool_parameters,
-                    credential_id=payload.credential_id
+                    credential_id=payload.credential_id,
                 ),
             )
 
diff --git a/api/core/agent/strategy/plugin.py b/api/core/agent/strategy/plugin.py
index 90e5782c47..04661581a7 100644
--- a/api/core/agent/strategy/plugin.py
+++ b/api/core/agent/strategy/plugin.py
@@ -60,7 +60,5 @@ class PluginAgentStrategy(BaseAgentStrategy):
             conversation_id=conversation_id,
             app_id=app_id,
             message_id=message_id,
-            context=PluginInvokeContext(
-                credentials=credentials or InvokeCredentials()
-            ),
+            context=PluginInvokeContext(credentials=credentials or InvokeCredentials()),
         )
diff --git a/api/core/plugin/impl/oauth.py b/api/core/plugin/impl/oauth.py
index 19ebceb42b..d73e5d9f9e 100644
--- a/api/core/plugin/impl/oauth.py
+++ b/api/core/plugin/impl/oauth.py
@@ -56,7 +56,6 @@ class OAuthHandler(BasePluginClient):
         Get credentials from the given request.
         """
 
-
         try:
             # encode request to raw http request
             raw_request_bytes = self._convert_request_to_raw_data(request)
diff --git a/api/core/tools/builtin_tool/provider.py b/api/core/tools/builtin_tool/provider.py
index 39de030f18..a70ded9efd 100644
--- a/api/core/tools/builtin_tool/provider.py
+++ b/api/core/tools/builtin_tool/provider.py
@@ -125,7 +125,7 @@ class BuiltinToolProviderController(ToolProviderController):
         if credential_type == CredentialType.API_KEY.value:
             return self.entity.credentials_schema.copy() if self.entity.credentials_schema else []
         raise ValueError(f"Invalid credential type: {credential_type}")
-    
+
     def get_oauth_client_schema(self) -> list[ProviderConfig]:
         """
         returns the oauth client schema of the provider
diff --git a/api/core/tools/tool_manager.py b/api/core/tools/tool_manager.py
index 2be8f48b54..d61856a8f5 100644
--- a/api/core/tools/tool_manager.py
+++ b/api/core/tools/tool_manager.py
@@ -207,7 +207,7 @@ class ToolManager:
                     # if the provider has been deleted, raise an error
                     if builtin_provider is None:
                         raise ToolProviderNotFoundError(f"provider has been deleted: {credential_id}")
-                
+
                 # fallback to the default provider
                 if builtin_provider is None:
                     # use the default provider
diff --git a/api/core/tools/utils/encryption.py b/api/core/tools/utils/encryption.py
index 4aa5412a5e..5fdfd3b9d1 100644
--- a/api/core/tools/utils/encryption.py
+++ b/api/core/tools/utils/encryption.py
@@ -127,6 +127,7 @@ class ProviderConfigEncrypter:
 def create_provider_encrypter(tenant_id: str, config: list[BasicProviderConfig], cache: ProviderConfigCache):
     return ProviderConfigEncrypter(tenant_id=tenant_id, config=config, provider_config_cache=cache), cache
 
+
 def create_tool_provider_encrypter(tenant_id: str, controller: ToolProviderController):
     cache = SingletonProviderCredentialsCache(
         tenant_id=tenant_id,
diff --git a/api/core/tools/utils/uuid_utils.py b/api/core/tools/utils/uuid_utils.py
index dff49e0c84..bdcc33259d 100644
--- a/api/core/tools/utils/uuid_utils.py
+++ b/api/core/tools/utils/uuid_utils.py
@@ -5,7 +5,6 @@ def is_valid_uuid(uuid_str: str | None) -> bool:
     if uuid_str is None or len(uuid_str) == 0:
         return False
     try:
-
         uuid.UUID(uuid_str)
         return True
     except Exception: