As Simon Willison notes, this shift away from broad web search toward a more constrained, site-specific paradigm is a subtle but profound change. In our view, it signals a maturation of AI-assisted search, moving from a general-purpose 'answer engine' toward a tool for navigating known, trusted sources. This could improve factual reliability, as the model is arguably anchored to specific domains, but it also risks creating a more curated and potentially insular web experience. The key question is whether this represents a user-empowering feature or a platform-exerting control, subtly shaping what information is surfaced by default.