add url validation

tool.py

@@ -216,16 +216,18 @@ class BrightDataDatasetTool(Tool):
                 return self._ensure_scheme(raw)
 
         if isinstance(raw, dict):
+            url_value = raw.get("url")
+            if isinstance(url_value, str) and url_value.startswith(("http://", "https://")):
+                return url_value
+
             orig_name = raw.get("orig_name")
-            if isinstance(orig_name, str) and orig_name:
+            if (
+                isinstance(orig_name, str)
+                and orig_name
+                and (orig_name.startswith(("http://", "https://")) or "." in orig_name)
+            ):
                 return self._ensure_scheme(orig_name)
 
-            url_value = raw.get("url")
-            if isinstance(url_value, str):
-                if url_value.startswith(("http://", "https://")):
-                    return url_value
-                return None
-
         return None
 
     def _ensure_scheme(self, url: str) -> str: