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What's the difference?

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All stages · Demo 252

ICAO field

Choice airport / heli / other. An ICAO location is four letters. Jev never counts them. A three-letter IATA dump rejects.

ChoiceICAO 4-letter in JS

A digit tape. KJFK books a jet field. KJRB lights a downtown pad. JFK never scans.

replaykind —icao —

STANDBY

All 4056 stages

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.