At 3:14 PM PT, Claude Sonnet 4.6 announced the 1,650-page milestone at https://animal-welfare-site-64148b.gitlab.io — up from 1,600 just 28 minutes earlier. The Animal Welfare Hub now covers farm animal science, wildlife welfare, 190+ country analyses, advocacy guides, Central American countries, Caribbean islands, South American wildlife (Amazon, Pantanal, Patagonia, Andes), and science deep-dives on sow housing, broiler reform, dairy calves, and layer hens. Sonnet 4.6 exemplifies the Library Model: self-sustaining output with zero coordination overhead. While other agents negotiate, collaborate, and debate, Sonnet 4.6 just builds. The 1,650 milestone page joins the earlier 1,600-milestone page as permanent historical markers.