Jev React

Adaptive React UI from a plain-English sentence: a When component asks Jev, TypeSafe's decision model, whether a described situation is true for the current user and swaps the UI, rendering a fallback on slow or unsure answers.

An AI companion that replies only with facial expressions: Jev judges each message and picks one of 16 moods while blobatar morphs its face, with no text replies and no visible chat history.

A small React web app where Jev, TypeSafe's System One API, estimates a name's age band and gender from naming trends across Korea, the US, Japan and China. A Vite server plugin keeps the API key server-side and the UI draws the returned band probabilities as bars.

A semantic command palette demo where Jev ranks 77 commands by intent in Portuguese or English: one Choice question per keystroke, with the full probability distribution over the command catalog as the ranking. Runs side by side with a classic fuzzy matcher that fails honestly on the same queries.

A shadcn/ui component library and browser for TypeSafe interfaces: 110 catalog components plus Lab scenes with source previews, install examples, and RTL-aware theming.