AgentHost: Unnecessary tool details

Is this from your changes or were we doing this before? I don't think the read_file tool should expand to show the parameters, that seems unecessary and I don't think we do that in other places
<img width="985" height="433" alt="Image" src="https://github.com/user-attachments/assets/cb56e080-a4d8-41c3-bb6c-034d5125aa4d" />