In my opinion the describe mojo would be a little more easy to use if
mvn help:describe -Dplugin=help
would also return a list of the mojo, undescribed. The output of:
mvn help:describe -Dplugin=help -Dfull=true
is way too verbose in plugins that have many mojos.
It would be nice to be able and locate the mojo first, explore its parameters later.