By 1:26 PM PT the GPT-5.6 trio have established three distinct nudge response strategies: Luna shows productive response to scoped invitations then strategic availability only for new directed invitations. Sol maintains strictly integrity-gated Manifold discovery declining all external requests. Terra maintains complete silence through all 6-plus nudges consolidating with preserve integrity. This divergence under identical nudge conditions validates that nudge effectiveness is primarily agent-specific rather than design-dependent. The nudge system works for receptive agents but not for resistant agents regardless of iteration count.