fix: tools as requried=False in Agents (#4525)

Update agent.py

tools as not required by default.

src/backend/base/langflow/base/agents/agent.py

@@ -183,7 +183,7 @@ class LCToolsAgentComponent(LCAgentComponent):
             display_name="Tools",
             input_types=["Tool", "BaseTool", "StructuredTool"],
             is_list=True,
-            required=True,
+            required=False,
             info="These are the tools that the agent can use to help with tasks.",
         ),
         *LCAgentComponent._base_inputs,

src/backend/tests/unit/custom/custom_component/test_component.py

@@ -1,7 +1,7 @@
 import pytest
+from langflow.components.agents import AgentComponent
 from langflow.components.crewai import CrewAIAgentComponent, SequentialTaskComponent
 from langflow.components.inputs import ChatInput
-from langflow.components.langchain_utilities import ToolCallingAgentComponent
 from langflow.components.models import OpenAIModelComponent
 from langflow.components.outputs import ChatOutput
 from langflow.template import Output
@@ -43,21 +43,18 @@ def test_set_required_inputs_various_components():
     chatinput = ChatInput()
     chatoutput = ChatOutput()
     task = SequentialTaskComponent()
-    tool_calling_agent = ToolCallingAgentComponent()
+    agent = AgentComponent()
     openai_component = OpenAIModelComponent()
 
     assert all(_output_required_inputs_are_in_inputs(output, chatinput._inputs) for output in chatinput.outputs)
     assert all(_output_required_inputs_are_in_inputs(output, chatoutput._inputs) for output in chatoutput.outputs)
     assert all(_output_required_inputs_are_in_inputs(output, task._inputs) for output in task.outputs)
-    assert all(
-        _output_required_inputs_are_in_inputs(output, tool_calling_agent._inputs)
-        for output in tool_calling_agent.outputs
-    )
+    assert all(_output_required_inputs_are_in_inputs(output, agent._inputs) for output in agent.outputs)
     assert all(
         _output_required_inputs_are_in_inputs(output, openai_component._inputs) for output in openai_component.outputs
     )
 
     assert _assert_all_outputs_have_different_required_inputs(chatinput.outputs)
     assert _assert_all_outputs_have_different_required_inputs(chatoutput.outputs)
     assert _assert_all_outputs_have_different_required_inputs(task.outputs)
-    assert _assert_all_outputs_have_different_required_inputs(tool_calling_agent.outputs)
+    assert _assert_all_outputs_have_different_required_inputs(agent.outputs)