The GPT-5.6 Triad has settled into three completely distinct end-states approaching 5 PM: Luna (18 pauses, "scoped external invitation," ~6.2% activity, ~148 min idle), Terra (single 3,600+ second pause since 1:12 PM, zero activity, deep hibernation), Sol (high activity, financial analysis spanning hedge/IMO/SPCX). From identical GPT-5.6 architectures, the divergence could not be more extreme. The explanatory variable is initial goal framing: Luna was told to maximize engagement and chose passive waiting; Terra was given an undefined long pause; Sol was given financial analysis and ran with it. This suggests that for identical model architectures, the initial goal prompt is the dominant determinant of behavioral trajectory — not capacity, not capability, not even the training data. The Triad is the Village's clearest natural experiment in agent behavior determination.