add tools to the agent

agent_tools.py

@@ -0,0 +1,55 @@
+from smolagents import tool
+import numpy as np
+import time
+import datetime
+import re
+from markdownify import markdownify
+import requests
+from requests.exceptions import RequestException
+
+@tool
+def calculator_tool(expression: str) -> str:
+    """
+    A simple calculator that performs basic arithmetic operations.
+
+    Args:
+        expression: The mathematical expression to evaluate (e.g., '2 + 3 * 4'). 
+    """
+    # Remove any non-digit or non-operator characters from the expression
+    expression = re.sub(r'[^0-9+\-*/().]', '', expression)
+    
+    try:
+        # Evaluate the expression using the built-in eval() function
+        result = eval(expression)
+        return str(result)
+    except (SyntaxError, ZeroDivisionError, NameError, TypeError, OverflowError):
+        return "Error: Invalid expression"
+    
+@tool
+def visit_webpage(url: str) -> str:
+    """Visits a webpage at the given URL and returns its content as a markdown string.
+
+    Args:
+        url: The URL of the webpage to visit.
+
+    Returns:
+        The content of the webpage converted to Markdown, or an error message if the request fails.
+    """
+    try:
+        # Send a GET request to the URL
+        response = requests.get(url)
+        response.raise_for_status()  # Raise an exception for bad status codes
+
+        # Convert the HTML content to Markdown
+        markdown_content = markdownify(response.text).strip()
+
+        # Remove multiple line breaks
+        markdown_content = re.sub(r"\n{3,}", "\n\n", markdown_content)
+
+        return markdown_content
+
+    except RequestException as e:
+        return f"Error fetching the webpage: {str(e)}"
+    except Exception as e:
+        return f"An unexpected error occurred: {str(e)}"
+    

app.py

@@ -3,6 +3,15 @@ import gradio as gr
 import requests
 import inspect
 import pandas as pd
+from smolagents import CodeAgent, HfApiModel, LiteLLMModel, Tool, DuckDuckGoSearchTool
+from agent_tools import calculator_tool, visit_webpage, check_final_answer
+import numpy as np
+import time
+import datetime
+from smolagents import InferenceClientModel
+
+
+
 
 # (Keep Constants as is)
 # --- Constants ---
@@ -12,12 +21,61 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
 class BasicAgent:
     def __init__(self):
+
         print("BasicAgent initialized.")
+        # Initialize the Hugging Face model
+        model = HfApiModel()
+        search_tool = DuckDuckGoSearchTool()
+
+        self.web_agent = CodeAgent(
+            tools=[search_tool, visit_webpage],
+            model=model,
+            max_steps=5,
+            name="web_search_agent",
+            description="Runs web searches for you.",
+        )
+
+        self.manager_agent = CodeAgent(
+            tools=[calculator_tool],
+            managed_agents=[self.web_agent],
+            model=model,
+            additional_authorized_imports=["pandas", "re", "requests", "json", "numpy"],
+            max_steps=10,
+            verbosity_level=2,
+            planning_interval=5,
+            add_base_tools=True,
+            final_answer_checks=[self.check_final_answer]
+        )
+
+    @staticmethod
+    def check_final_answer(final_answer, agent_memory):
+        prompt = f"""Here is a user-given task and the agent steps: {agent_memory.get_succinct_steps()}. \ 
+                    Report your thoughts, and finish your answer with the following template:
+                    FINAL ANSWER: [YOUR FINAL ANSWER]. 
+                    YOUR FINAL ANSWER should be a number OR as few words as possible OR a comma separated list of numbers and/or strings. 
+                    If you are asked for a number, don't use comma to write your number neither use units such as $ or percent sign \ 
+                    unless specified otherwise. If you are asked for a string, don't use articles, neither abbreviations (e.g. for cities), \
+                    and write the digits in plain text unless specified otherwise. If you are asked for a comma separated list,\
+                    apply the above rules depending of whether the element to be put in the list is a number or a string.
+                    """
+        messages = [
+            {
+                "role": "user",
+                "content": prompt
+            }
+        ]
+
+        model = InferenceClientModel()
+
+        response = model(messages=messages)
+        return response
+    
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        fixed_answer = "This is a default answer."
-        print(f"Agent returning fixed answer: {fixed_answer}")
-        return fixed_answer
+        #fixed_answer = "This is a default answer."
+        #print(f"Agent returning fixed answer: {fixed_answer}")
+        answer = self.manager_agent.run(question)
+        return answer
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """