Tools for enforcing the gold-standard? #8

I have been working on creating a open-element template that comes with a number of services and features built in so that new elements can start with best practices from day one (and without all extra overhead of setting up services each time). For example, it uses Travis CI for builds, SauceLabs for cross-browser testing, Istanbul for code coverage, semantic-release to enforce semver, Commitizen to enforce conventional commits and changelogs, etc.

I was wondering if there are things on the gold-standard list that can be automatically tested for -- like accessibility or localization. To any extent possible, I would love to see the open-element automatically enforce the gold-standard.

Any thoughts on tools or libraries that can be used for enforcing the gold-standard?