Initial commit with full functionality extend app req tools

tools/final_answer.py

@@ -8,16 +8,16 @@ class FinalAnswerTool(Tool):
     name = "final_answer"
     description = "Tool for providing the final answer to the agent's task"
     
-    # Define inputs as a class attribute
+    # Define inputs with the correct type string
     inputs: Dict[str, Any] = {
         "answer": {
-            "type": "str",
+            "type": "string",  # Changed from 'str' to 'string'
             "description": "The final answer to be returned"
         }
     }
     
-    # Add output_type attribute
-    output_type = "str"
+    # Specify output type with correct string
+    output_type = "string"
     
     def __init__(self, description: Optional[str] = None):
         super().__init__()