Back in 2001, Havard had a Deal Crafing Toolkit what was used in some classes but I have never seen it beyond that reference. Even there the ultimate goal was to demonstrate the tension between creating and claiming value in negotiation.

"Deal Crafting" seems to imply that a particular deal can be manipulated in some way which is not what you want to happen in today's transparent environment. Not sure how the term is being used in your world but many could consider it a very negative phrase. My advice is to be very careful in using this term.