Use when writing the document a buyer reads to say yes — a commercial proposal or Statement of Work, turning discovery notes into a scoped and priced document, adding tiers so the middle one wins, or diagnosing a proposal that will not close. NOT the binding legal agreement with its liability and IP clauses (that is `contracts`), NOT deciding the number or the margin (that is `pricing`), NOT the deck that pitches the vision to a room (that is `pitch-deck`).