Principlev1
Make category boundaries explicit through written scope
Make category boundaries explicit through written scope notes that specify what belongs and what doesn't, not just labels.
Why This Is a Principle
Derives from Cognitive Defusion: Thoughts Are Objects (thoughts as discrete objects), Externalization Exposes Hidden Structure (externalization exposes gaps), and Knowledge that exists only in tacit form degrades without (tacit knowledge degrades). Prescribes a specific technique: scope notes instead of bare labels. This is clearly actionable and applies across classification contexts.