Hey, you know what would be cool? 
To have a library to read (and maybe write) defold asset files, like .go/.collection/etc.
Alternatively, since the files seem to be in the “text protobuf” format, it would be nice to have the type descriptions (.proto files) available to public, so people can write their own tools.
My use-case for this is generating type-safe boilerplate code in hxdefold that allows working with known scene structure through a nice API with auto-completion, type checking and everything (https://github.com/hxdefold/hxdefold/issues/15)