Principlev1
Design agents for the version of yourself who will encounter
Design agents for the version of yourself who will encounter the trigger under actual conditions (tired, distracted, stressed) rather than the idealized version making the plan.
Why This Is a Principle
This derives from Egocentric Anchoring in Perspective-Taking (egocentric anchoring when modeling others), extended to modeling future self, plus Illusion of Explanatory Depth (gap between felt and actual understanding) and Emotion as Systematic Cognitive Modulator (emotional states distort judgment). The design thinking 'empathize' stage applied to self-design is prescriptive guidance that follows from these cognitive biases about perspective-taking and state-dependent cognition.