Most of the time when you are navigating and reading a code-base, you need to jump between required/imported (whatever jargon your programming language uses) files. The “Go to Definition” functionality of Sublime falls short for most languages since jumping between these required files needs some knowledge about how the language or package manager of the language is working.
Ooh, I like this plugin a lot. Especially when clicking through our React+Redux based projects at work which tend to have a lot of files requiring each other.
UPDATE 2016.11.29: I’ve added support for Stylus to HyperClick. The pull request has already been merged 🙂