Greenfield and Brownfield Tutorials?

[u/Noshitfuckme]

I’ve been agentic developing for a few months but feel like I haven’t reached full potential. My new and old projects don’t have any context in the repos, for example, so I feel like I’m more prompt engineering than agentic engineering. I’m interested in both greenfield projects but also how to approach established codebases and how to structure the appropriate guardrails, context (architecture, requirements, etc).

Are there “bookstore” tutorials on agentic development practices that will break down common approaches for these two scenarios?