All stages · Demo 218
Humidex
Choice porch / field / ed. Canadian humidex is T plus 0.5555 times (vapour pressure−10). Jev never raises 10^7.5. Missing RH cannot humidex.
A dial. 20°C / 50% is HX 21. 32°C / 70% lights 45. Heat exhaustion with no humidity cannot index.
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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.