Is there a contribution policy? Couldn't find it, although I arguably didn't look very hard.
I have (subjectively) new assertion as a small modification of PesterThrow which allows testing of the FullyQualifiedErrorId on an error record (PesterThrowErrorId / ThrowErrorId, surprisingly enough), something I much prefer over testing error message content.
Is there anything in the pipeline to handle (aka remove / modify) type attributes on parameters in the param block for mocked commands? If not, I have some ideas and I'll try those out too.
Cheers,
Chris