It says so right in the readme. It's a formatter, linter, bundler, compiler(transpiler?) all in one.
1. Everything you seem to be asking for seems like it is not relevant at this point in the project's lifecycle. 2. IMO people who are capable of providing good contributions don't actually need what you are asking for. They can review the README as is, review the source code, etc.
In short, patience.
It would be interesting to see examples of specific such advantages that could be gained, because I'm having a hard time thinking of any.