This is one layer in a structured approach to product research and design. It focuses specifically on staying grounded in what users actually do rather than what you assume they do. You'll either plan new research (picking from JTBD interviews, contextual inquiry, diary studies, or analyzing existing support tickets) or synthesize what you've already gathered into confidence-rated findings. The discipline here is useful: mark everything as observed, inferred, or assumed, and if you claim something is observed, you should be able to quote the evidence in the same breath. It pushes you to name research gaps explicitly instead of filling them with wishful thinking. Works best when you have some user research to make sense of or need to design a study that answers specific questions.
npx skills add https://github.com/jamiemill/layers-skills --skill layers-observed-behaviour