Most (all?) tex commands support the -recorder option, which writes each file opened for input or output in a .fls file. It would be nice to have something comparable for latexml(post), e.g. to produce Makefile dependencies.

As of now, latexml writes (Loading [filename]... in the log for many files being read but not all of them, e.g. \lstinputlisting does not produce any output, and latexmlpost says very little about the files being read, not to mention resources being copied.