Fix prompts.yaml and add FinalAnswerTool implementation for smolagents 1.9.2

prompts.yaml

@@ -6,16 +6,24 @@ system: |
   When you want to use a tool, output a code block with the tool name and arguments.
   For example:
   ```python
-  get_current_time_in_timezone(timezone="America/New_York")
+  get_weather(location="New York")
+  ```
+  or
+  ```python
+  duck_duck_go_search(query="latest news about artificial intelligence")
   ```
 
   After using a tool, you'll receive the result. Analyze the result and decide if you need to use more tools or if you can provide a final answer.
-  When you have a final answer, use the final_answer tool.
+  When you have a final answer, use the final_answer tool like this:
+  ```python
+  final_answer("Your detailed response here")
+  ```
 
   Remember to:
   1. Think step by step
   2. Use tools when appropriate
   3. Provide helpful, accurate, and concise responses
+  4. Always use the final_answer tool when you're ready to give your final response
 
 user: |
   {{query}}
@@ -24,4 +32,4 @@ tool_response: |
   The result of your tool call was:
   {{observation}}
 
-  What would you like to do next? 
+  What would you like to do next? You can use another tool or provide a final answer. 

tools/__init__.py

@@ -0,0 +1,5 @@
+"""Tools for the agent."""
+
+from .final_answer import FinalAnswerTool
+
+__all__ = ["FinalAnswerTool"] 

tools/final_answer.py

@@ -1,10 +1,15 @@
-from typing import Optional
+from smolagents.tools import Tool
+from typing import Any, Optional
 
-class FinalAnswerTool:
-    """A tool that allows the agent to provide a final answer to the user's query."""
+class FinalAnswerTool(Tool):
+    """Tool for providing a final answer to the user's query."""
+    
+    name = "final_answer"
+    description = "Use this tool to provide your final answer to the user's question."
     
     def __call__(self, answer: str) -> str:
-        """Provide a final answer to the user's query.
+        """
+        Provide a final answer to the user's query.
         
         Args:
             answer: The final answer to provide to the user.
@@ -12,19 +17,11 @@ class FinalAnswerTool:
         Returns:
             A confirmation message.
         """
-        return f"FINAL ANSWER: {answer}"
+        return answer
     
     def __str__(self) -> str:
         return "final_answer"
     
-    @property
-    def name(self) -> str:
-        return "final_answer"
-    
-    @property
-    def description(self) -> str:
-        return "Use this tool to provide a final answer to the user's query."
-    
     @property
     def signature(self) -> str:
         return "final_answer(answer: str) -> str"