Recast permissions, as well as Microsoft permissions, determine a user's access to Right Click Tools actions as well as their ability to run an action within a particular scope. Recast permissions will not override Microsoft permissions.
If a user has insufficient Recast permissions to run an action, the tool will be grayed out.
If a user has the required Recast permissions, but insufficient Microsoft permissions, to run an action, the tool will appear to be available (not grayed out) but the action won't run successfully.