It's funny you say this because this is considered the "old" way to use LLMs since agents can write code so well, but I don't think enough people realize how much more efficient your preferred approach is compared to the era before LLMs were widely available at all.

Gone are the days of hopeless Googling where 20 minutes of research becomes 3 hours with the possibility of having zero solutions. The sheer efficiency of having reliable, immediate answers is a tremendous improvement, even if you're choosing to write everything by hand using it as a reference.