I thought that the most interesting thing in composite was auto-composition-mode... same reasoning for replace.el which provided 'occur in my first patch.

Anyway, you're right, it's not very consistent. Here attached is a new patch that simply follows the file name.

In the future, I think we should consider renaming/splitting these files so each mode provide its feature (e.g occur provides 'occur, etc).

Best regards,

Philippe