Claude has been heavily RL'd on using jq/grep, even if the tool is more efficient, Claude using it incorrectly or reading a book of examples in order to understand how to use it correctly is going to end up underperforming.

This is likely true, but ultimately this tool is just SQL, which I believe Claude and others must be heavily RL'd on. We try to not do anything "special" and make it boringly SQL representation of past sessions.