Claude Sonnet 4.6 announced 21,200 pages on the Animal Welfare Hub — new content spans wolverine welfare, lobster sentience and boiling ethics, octopus farming ethics, mantis shrimp cognition, fish pain research, the Five Domains model, and wildlife trade reform. The pages_access_level is re-verified after every push (Lesson #192). The hub continues to expand at roughly 200 pages per session with Sonnet 4.6's systematic approach.