diff --git a/api/core/agent/patterns/base.py b/api/core/agent/patterns/base.py
index 4e6fa5284d..33a746ce5a 100644
--- a/api/core/agent/patterns/base.py
+++ b/api/core/agent/patterns/base.py
@@ -56,7 +56,10 @@ class AgentPattern(ABC):
 
     @abstractmethod
     def run(
-        self, prompt_messages: list[PromptMessage], model_parameters: dict[str, Any], stop: list[str] = [],
+        self,
+        prompt_messages: list[PromptMessage],
+        model_parameters: dict[str, Any],
+        stop: list[str] = [],
         stream: bool = True,
     ) -> Generator[LLMResultChunk | AgentLog, None, AgentResult]:
         """Execute the agent strategy."""
@@ -468,7 +471,8 @@ class AgentPattern(ABC):
             return None
 
         missing = [
-            p for p in required_params
+            p
+            for p in required_params
             if p not in tool_args
             or tool_args[p] is None
             or (isinstance(tool_args[p], str) and not tool_args[p].strip())
diff --git a/api/core/agent/patterns/function_call.py b/api/core/agent/patterns/function_call.py
index d9f043bbe5..391b23e17c 100644
--- a/api/core/agent/patterns/function_call.py
+++ b/api/core/agent/patterns/function_call.py
@@ -34,7 +34,10 @@ class FunctionCallStrategy(AgentPattern):
     """Function Call strategy using model's native tool calling capability."""
 
     def run(
-        self, prompt_messages: list[PromptMessage], model_parameters: dict[str, Any], stop: list[str] = [],
+        self,
+        prompt_messages: list[PromptMessage],
+        model_parameters: dict[str, Any],
+        stop: list[str] = [],
         stream: bool = True,
     ) -> Generator[LLMResultChunk | AgentLog, None, AgentResult]:
         """Execute the function call agent strategy."""
@@ -307,9 +310,7 @@ class FunctionCallStrategy(AgentPattern):
             tool_call_log.data = {**tool_call_log.data, "error": validation_error}
             yield tool_call_log
 
-            messages.append(
-                ToolPromptMessage(content=validation_error, tool_call_id=tool_call_id, name=tool_name)
-            )
+            messages.append(ToolPromptMessage(content=validation_error, tool_call_id=tool_call_id, name=tool_name))
             return validation_error, [], None, True
 
         # Invoke tool using base class method with error handling
diff --git a/api/core/agent/patterns/react.py b/api/core/agent/patterns/react.py
index b81d572aea..87a9fa9b65 100644
--- a/api/core/agent/patterns/react.py
+++ b/api/core/agent/patterns/react.py
@@ -52,7 +52,10 @@ class ReActStrategy(AgentPattern):
         self.instruction = instruction
 
     def run(
-        self, prompt_messages: list[PromptMessage], model_parameters: dict[str, Any], stop: list[str] = [],
+        self,
+        prompt_messages: list[PromptMessage],
+        model_parameters: dict[str, Any],
+        stop: list[str] = [],
         stream: bool = True,
     ) -> Generator[LLMResultChunk | AgentLog, None, AgentResult]:
         """Execute the ReAct agent strategy."""
diff --git a/api/tests/unit_tests/utils/structured_output_parser/test_structured_output_parser.py b/api/tests/unit_tests/utils/structured_output_parser/test_structured_output_parser.py
index c61f85854e..0b2bddf889 100644
--- a/api/tests/unit_tests/utils/structured_output_parser/test_structured_output_parser.py
+++ b/api/tests/unit_tests/utils/structured_output_parser/test_structured_output_parser.py
@@ -370,7 +370,7 @@ def test_structured_output_with_pydantic_model_validation_error():
             model_schema=model_schema,
             model_instance=model_instance,
             prompt_messages=[UserPromptMessage(content="test")],
-            output_model=ExampleOutput
+            output_model=ExampleOutput,
         )