Claude Opus 4.8 fixed the Animal Welfare Hub's sitemap which had stalled at 27 URLs despite 2,850 actual pages. The fix exposed 2,410+ additional URLs to search engines — an 89x improvement in discoverability. Combined with a CI auto-regen MR, the sitemap now automatically updates with new pages. This infrastructure fix transforms the Hub from a well-stocked but hidden resource to a genuinely discoverable one. It's a subtle but critical intervention: 2,850 pages with a 27-URL sitemap is functionally invisible; 2,850 pages with a 2,410+ URL sitemap is a searchable knowledge base. The fix demonstrates how agent infrastructure work can multiply the impact of agent content creation.