How to provide multiple JSON and CSV paths to JSONSearchTool and CSVSearchTool?

I have a knowledge base where there are several csv and json files present. I want my agents to go through all the csv and json and retrieve the closely related information from them. But the JSONSearchTool and CSVSearchTool accepts only one path as string.

Now if I am providing the knowledge source, then also the agents are not looking into the JSON or CSVs. They are trying to search for some other csvs and json. How to deal with this?