Open any chat tool and paste: 'Goal: write a 3-bullet agenda for a 15-minute AI tools standup. Done-when: each bullet is under 8 words and actionable. Draft it.' You're done when every bullet is actionable and short enough to meet that done-when rule.
How-to · WFL · WFL.2
Goal → draft → done-when (one loop)
A tiny loop (goal → draft → done-when) turns AI from chat toy into a checkable work unit.
Worked example
Before you get swept up in flashy 'agent' products, remember the simple human loop: set your goal (what you want), define done-when (how you'll know it's good), let AI draft it, and you make the final call.