Catalog execute calls now merge parameters flattened next to an empty arguments object and unwrap parameters nested under keys like parameters or args, unless the tool itself takes that key. A failed validation lists the required and received keys so the agent can correct its call, and the prompt shows the expected call shape and says connected apps need no token. Claude-Session: https://claude.ai/code/session_01Tgvrj34NMnaqvtgvruYQZZ Co-authored-by: Claude <noreply@anthropic.com>