The one-pager works even better if you add a single line for assumptions and tradeoffs and use if/then wording. Example: I’m aligned on the goal; given stakeholder time zones and the 72-hour compliance review, I can deliver A and B by [realistic date]; to hit [two-week date] we’d need to drop C and D or add [specific resource]. Close with a short recap that says and Per our decision, we’re pursuing Option X with target date Y and deferring Z.