Fix: sanitized tool names for LangChain compliance

agent.py

@@ -99,22 +99,22 @@ def total_sales_from_excel(file_path: str) -> str:
 ## ----- TOOL LIST ----- ##
 
 tools = [
-    Tool.from_function(add_numbers, name="Add Numbers", description="Add two numbers."),
-    Tool.from_function(subtract_numbers, name="Subtract Numbers", description="Subtract two numbers."),
-    Tool.from_function(multiply_numbers, name="Multiply Numbers", description="Multiply two numbers."),
-    Tool.from_function(divide_numbers, name="Divide Numbers", description="Divide two numbers."),
+    Tool.from_function(add_numbers, name="Add_Numbers", description="Add two numbers."),
+    Tool.from_function(subtract_numbers, name="Subtract_Numbers", description="Subtract two numbers."),
+    Tool.from_function(multiply_numbers, name="Multiply_Numbers", description="Multiply two numbers."),
+    Tool.from_function(divide_numbers, name="Divide_Numbers", description="Divide two numbers."),
     Tool.from_function(power, name="Power", description="Raise one number to the power of another."),
     Tool.from_function(modulus, name="Modulus", description="Compute the modulus (remainder) of a division."),
-    Tool.from_function(square_root, name="Square Root", description="Compute the square root of a number."),
+    Tool.from_function(square_root, name="Square_Root", description="Compute the square root of a number."),
     Tool.from_function(logarithm, name="Logarithm", description="Compute the logarithm of a number with a given base."),
     web_search_tool,
     wikipedia_tool,
     arxiv_tool,
-    Tool.from_function(transcribe_audio, name="Transcribe Audio", description="Transcribe audio to text."),
-    Tool.from_function(get_youtube_transcript, name="YouTube Transcript", description="Extract transcript from YouTube."),
-    Tool.from_function(extract_text_from_image, name="Image OCR", description="Extract text from an image."),
-    Tool.from_function(execute_python_code, name="Python Code Executor", description="Run Python code."),
-    Tool.from_function(total_sales_from_excel, name="Excel Sales Parser", description="Parse Excel file for total food sales."),
+    Tool.from_function(transcribe_audio, name="Transcribe_Audio", description="Transcribe audio to text."),
+    Tool.from_function(get_youtube_transcript, name="YouTube_Transcript", description="Extract transcript from YouTube."),
+    Tool.from_function(extract_text_from_image, name="Image_OCR", description="Extract text from an image."),
+    Tool.from_function(execute_python_code, name="Python_Code_Executor", description="Run Python code."),
+    Tool.from_function(total_sales_from_excel, name="Excel_Sales_Parser", description="Parse Excel file for total food sales."),
 ]
 
 ## ----- SYSTEM PROMPT ----- ##