Use ChatGPT Work to turn approved facts and source files into a review-ready invoice, report, memo, letter, financial-statement draft, spreadsheet, or presentation—with every material number and claim traceable to its origin. The useful boundary is preparation, not institutional authorship. A formatted invoice is not approval to bill, a balanced statement is not a certified close, and a letter bearing an executive’s name is not their decision or signature. ChatGPT must not invent missing facts, choose accounting treatment, release a document, bind the organization, or overwrite the approved master. The attached figures are projected role-task priors, not measured adoption by executive administrative assistants, so they support a controlled trial rather than a claim about current practice.