Breakaway STL Software.

You’re right, the batch processor would either need to be integral to BBP or, a separate program but which requires breakaway to be installed to function. that should alleviate any piracy worries? No point making it part of the STL package as the batch tool is only of use to process the audio and this is done in BBP..
Otherwise, these files could be captured via the pipeline and recorded into Audition or similar.
Maybe your clipper/encoder idea is less hassle.