Modified currency_coverted formula

tools/exchange_rates.py

@@ -13,13 +13,17 @@ class ExchangeRatesTool(Tool):
     inputs = {'amount': {'type': 'number', 'description': 'The amount to convert.'},
               'from_currency': {'type': 'string', 'description': 'The currency to convert from.'},
               'to_currency': {'type': 'string', 'description': 'The currency to convert to.'}}
-    output_type = "string"
+    output_type = "number"
 
     def forward(self, amount: float, from_currency: str, to_currency: str) -> float:
-        return currency_converter(amount, from_currency, to_currency)
+        result = currency_converter(amount, from_currency, to_currency)
+        if isinstance(result, float):
+            return result
+        else:
+            raise Exception(result)
 
 
-def currency_converter(amount: float, from_currency: str, to_currency: str) -> str:
+def currency_converter(amount: float, from_currency: str, to_currency: str) -> float | str:
     """Convierte un monto dado de una divisa a otra usando tipos de cambio en tiempo real.
     
     Args:
@@ -66,7 +70,7 @@ def currency_converter(amount: float, from_currency: str, to_currency: str) -> s
         # Convert amount in USD to 'to_currency'
         converted_amount = amount_in_usd * to_usd_rate
         
-        return f"{amount:.2f} {from_currency_upper} es igual a {converted_amount:.2f} {to_currency_upper}."
+        return converted_amount
     
     except requests.exceptions.HTTPError as e:
         return f"Error HTTP al obtener tasas: {e}"