Open-source communities can't afford to ignore the growing use of AI agents to write code. This talk shares lessons from building MapLibre Agent Skills: an open, eval-tested knowledge base that corrects AI hallucination in MapLibre implementations, with lessons for other projects looking to do the same.

Every serious MapLibre project hits this wall: a monolithic style.json nobody fully owns. Designers want a GUI, developers edit JSON by hand, version history is one huge diff. Mapstrata is a visual editor that makes collaboration possible: spec validation, variant support, and a project format built for git.