Problem

Checking code style manually on pull requests (or even before pushing) is boring.

Some code style rules examples:

• markdown file shall not contain tabs
• package.json should be indented with tabs. This is enforced by npm install (i.e. running npm install will fix the format of package.json). See this comment.
• other rules on src/ directory and so on..

Solution

We should find a way to specify these rules and they should be checked on every push and pull request with a GitHub action.

I am sure that there is some javascript/typescript related action that checks package.json and other relate code style rules out there.
Does anyone have any experience on this?