My initial reaction was, "that's fair" but then on more thought I don't think I agree. Firstly the npm package currently up is version 1.0.7, which doesn't imply "protoype/development/unstable/etc."

I've also been part of many open source projects and it's very common to not release/announce it until we've proven it ourselves in production.

So while I think one should definitely exercise caution with brand spanking new code, there's no way to know whether it was just ideated recently or has been in development for a while but just got released/opened for the first time.