I need to try this because I've never deliberately told it to, but I've had it do it on it's own before. Now I'm wondering if that project had instructions somewhere about that, which could it explain why it happened.
This works great for refactors that touch a large number of files. You can knock out a refactor that might take 30 minutes, a persistent checklist, and possibly multiple conversations, and one-shot it in two minutes and a single prompt.