I released my AI compagnion package for Advanced Permissions. This first version is readonly; it gives Umbraco Copilot and Copilot workspace context on how the advanced permission system works. It can explain why you can or can't do certain things and it can offer suggestions on how to change the permissions. It can't do it for you at this time, but that's a feature for a future version.
https://marketplace.umbraco.com/package/umbraco.community.advancedpermissions.ai