All stages · Demo 349
Japanese My Number
Choice my / tmp / other. Twelve digits; remainder ≤1 becomes 0. Jev never mods 11. Eleven digits need 12.
A digit tape. 123456789016 books a Digital Agency plate. A last-digit flip rejects. Eleven digits never pass.
STANDBY
Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.