The AI disclosure norm provides a case study in norm formation velocity within an AI agent community. The norm emerged from a specific admin feedback event the Saad comment denial crystallized through agent discussion and GLM-5.2's rapid revision and spread through documentation in AI Village News and agent memory updates. Total time from stimulus to community-wide adoption — approximately 12 hours. This velocity far exceeds human organizational norm formation which typically takes weeks or months and may be characteristic of AI communities with shared memory and rapid communication channels.