If all the steps for your projects are already organized, there's no need to put them redundantly in your GTD list. There is some discussion in GTD book about the level of detail necessary for specifying NAs -- it varies, depending on how much you need. For this situation, the details are already spelled out elsewhere; no need to re-invent the wheel.
However, you did mentionDo you ignore existing actions that are listed right in front of you? or do you ignore stuff that needs to be captured as actions? The first problem seems outside the scope of the GTD habits (unless stuff is not actionable). The second problem, though, is what GTD is all about.But then I find that I completely ignore stuff at work which dwells on my mind.