Update gaia_agent.py

gaia_agent.py

@@ -204,7 +204,23 @@ def df_to_column_row_map(df):
 
 def excel_csv_reader(file_path: str, query: str = "") -> str:
     """
-    Reads a CSV or Excel file and get the details as a dictionary array.
+    Reads a CSV or Excel file and returns its contents as a dictionary array.
+
+        If no file path or filename is provided, the agent must:
+        1. Infer whether the user is referring to a CSV or Excel file based on context.
+        2. Search the workspace for a matching file (e.g., any .csv or .xlsx file).
+        3. If multiple matches exist, choose the most relevant one based on the query.
+
+        Default fallback paths:
+        - /<inferred>.csv
+        - /<inferred>.xlsx
+
+        Args:
+            file_path (str, optional): The full path or filename. If omitted, the agent must auto-detect the correct file.
+
+        Returns:
+            str: The parsed content as a dictionary array or an explicit error message if the file cannot be found or inferred.
+
     """
     try:
         _, ext = os.path.splitext(file_path.lower())