Otter OS, the Figma agent with a design-language safety rail

Why it surfaced

Its public demo exposes the machinery rather than hiding behind a chat box: the system inspects a file, plans a layout, emits atomic operations, checks contrast and clipping, and supports clean rollback. The site also publishes a concrete schema and offers offline, direct-provider, and enterprise-backend connection modes.

Otter OS is an AI product-design agent that turns natural-language prompts into editable Figma content through a validated JSON Design DSL.