Subject: [Decision needed / FYI / Approval needed] by [date]: [the ask in under ten words] [Name], [The ask in one sentence that can be answered with one word.] [The date and why.] - [Reason 1, one line] - [Reason 2, one line] - [Reason 3, one line] [Cost of saying no, one sentence.] [What you'll do if you hear nothing, and when.] Full proposal: [link] [Your name] --- Checks before sending: - Under about 150 words. - The first line works alone in a preview pane or an AI summary. - First line tailored to this reader's main concern. - Every number checked against its source.