The verb list is, in practice, 90% Get-* and Set-* , so for most users that will cover the case where they need to read and modify some system state in a script

The verb list is, in practice, 90% Get-* and Set-* , so for most users that will cover the case where they need to read and modify some system state in a script. It may not cover your particular use case (I want to foo this bar), but as restriction on the language it helps your users not have to discover esoteric commands.