Cool project. I've been collecting a list of automated tools for editing [1], which originated at Bell Labs with The Unix Writer's Workbench [2]. Rather than start from scratch, if you want to stick with JavaScript you might consider contributing to Titus Wormer's ReText [3]. Otherwise, we'd love for you to join us in building the Python-based Proselint [4].

1. https://github.com/amperser/proselint/blob/master/research/c...

2. https://www.princeton.edu/~hos/frs122/unixhist/text.htm

3. https://github.com/wooorm/retext/blob/master/doc/plugins.md

4. https://github.com/amperser/proselint

Did anybody bother to look into the source at all? This is a roadmap without the first sod!

will this be able to catch stuff that grammarly cannot catch?

Yes, it catches a few things that Grammarly doesn't catch (or have to pay premium to view) like missing the closing parenthesis, or forgetting a period at the end of the sentence (I'm using Grammarly on mobile; it's possible that I didn't see the error.) We have a ton of cases still to add, and since it's entirely focused on punctuation and small details, we hope it should catch more than standard grammar checkers.

It looks like it won't do anything yet.

Very nice.