Trace grading

<div class="stage"><div class="title">TRACE GRADING</div><div class="canvas"><div class="trace"><div id="t0"><span>MODEL</span><b>intent</b></div><div id="t1"><span>TOOL</span><b>wrong source</b></div><div id="t2"><span>HANDOFF</span><b>review</b></div></div><div class="grade" id="grade">grading model call</div></div></div>

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let n=0;function grade(){const s=n++%3;for(let i=0;i<3;i++){const el=document.getElementById('t'+i);el.classList.toggle('active',i===s&&i!==1);el.classList.toggle('bad',i===s&&i===1)}document.getElementById('grade').textContent=['model: pass','tool choice: review','handoff: pass'][s]}grade();setInterval(grade,950)