You jest but I indeed find rejection an integral part of the job. Not plainly saying "no, get away", but backing up, requesting big picture views and trying to see if the overall organization is in need of and capable of carrying said project long-term feels like the absolute minimum that needs doing before we even begin.

I suspect LLMs can do this just fine and probably better than us, but they do need to be trained specifically for it and I have a hard time coming up with good sources of training data for it.