Yeah, I've done a fair bit of agency work dropping in to rescue code bases, and the first thing I do is run unit tests and check coverage. I add basic smoke tes

Yeah, I've done a fair bit of agency work dropping in to rescue code bases, and the first thing I do is run unit tests and check coverage. I add basic smoke tests anywhere they're missing. This actually speeds me up, rather than slowing me down, because once I have reasonably good coverage I can move dramatically faster when refactoring. It's a small investment that pays off.