While I know this cannot simply be added to the checks for dependencies and devDependencies (since the same package name may be used though with a version independent of them), it would be helpful to be able to specify conditions based on peerDependencies.

For example, I would like to add a to-do which indicated a minimum peer dep. of ESLint, so that when the version is updated, I can avoid using an outdated API (CLIEngine) which is nevertheless required for older versions (since the replacement API was not introduced until later).