Add required inputs attribute to all Tool classes for smolagents 1.9.2 compatibility

tools/final_answer.py

@@ -6,6 +6,12 @@ class FinalAnswerTool(Tool):
     
     name = "final_answer"
     description = "Use this tool to provide your final answer to the user's question."
+    inputs = {
+        "answer": {
+            "type": "string",
+            "description": "The final answer to provide to the user."
+        }
+    }
     
     def __call__(self, answer: str) -> str:
         """

tools/search.py

@@ -8,6 +8,12 @@ class DuckDuckGoSearchTool(Tool):
     
     name = "duck_duck_go_search"
     description = "Search the web for information using DuckDuckGo."
+    inputs = {
+        "query": {
+            "type": "string",
+            "description": "A string representing the search query."
+        }
+    }
     
     def __call__(self, query: str) -> str:
         """

tools/weather.py

@@ -7,6 +7,12 @@ class WeatherTool(Tool):
     
     name = "get_weather"
     description = "Get the current weather for a specified location."
+    inputs = {
+        "location": {
+            "type": "string",
+            "description": "A string representing a city or location (e.g., 'New York', 'Paris, France')."
+        }
+    }
     
     def __call__(self, location: str) -> str:
         """