Content grading tools have become common over the last couple of years. It's a good way to make sure every "i" is dotted and "t" crossed.
Content Harmony's grading tool fits nicely with its content brief tool. It basically helps you ensure that your content brief turn into reality. As Kane says in the demo below, the tool doesn't tell you whether or not the article is any good, but it can tell you how well-optimized the piece is for its target keyword. Content Harmony's tools are a nice way to streamline what would otherwise be important, time-consuming best practices.
Superpath readers and CMCG members get started with Content Harmony for just $10. Learn more here: https://www.contentharmony.com/superpath/
I've used a handful of content grading tools over the years, and I love how Kane has integrated this directly into a workflow that also includes keyword research and content briefs. It drives home the idea that SEO doesn't happen in a vacuum—content that ranks is well thought-out because it's part of a more holistic process.