Without meaning to sound flippant or dismissive, I think you're overthinking it. By the sounds of it, agents aren't offering what you say you need. What are _are_ offering is the boilerplate, the research, the planning etc. All the stuff that's ancillary. You could quite fairly say that it's in the pursuit of this stuff where details and ideas emerge and I would agree, but sometimes you don't need ideas. You need solutions which are run-of-the-mill and boring.