Currently, this type of summary information is not built into the compiler plugin, but it would be possible to add. If this feature is important to you, add your vote to MNG-1854 .
Modello generate the sources in the generate-sources phase and automatically adds the source directory for compilation in maven. So you don't have to copy the generated sources.
You have to declare the modello-plugin in the build of your plugin for source generation (in that way the sources are generated each time).
The Modello website can be found here .