Together AI Open-Sources Hallmark, a Design Skill That Stops AI From Building Generic Websites

Together AI released Hallmark, an open-source design skill that prevents AI-generated websites from exhibiting telltale patterns—tiny labels above headings, single colored words in headlines, email signups at page bottoms. Created by Hassan El Mghari and Youssef E., the tool has amassed 30,800 GitHub stars and runs 57 validation gates that flag common AI-slop indicators before a design ships.