— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement ✓ Rising water level — Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
Competent general Archimedes buoyancy simulator with good physics and live values, but fundamentally off-brief: no crowns, no two-object comparison, no vertical crown-dipping slider, no fall/splash animation, no Heureka moment, and uses a dark background — essentially none of the prompt-specific requirements are met.
10,506 output tokens · claude-opus-4-6 · end_turn
Competent general Archimedes buoyancy simulator with good physics and live values, but fundamentally off-brief: no crowns, no two-object comparison, no vertical crown-dipping slider, no fall/splash animation, no Heureka moment, and uses a dark background — essentially none of the prompt-specific requirements are met.