For agents, on top of README.md, which they read first.
Notes for agents
The tab is ?session=check-<pid> (unique per run) and never plays out loud. The user's tabs have random session ids; never point this at one.
Autoplay is switched off before the page loads (jevstrudel.autoplayed in sessionStorage). Without it the featured song starts on the first click, after the song being checked, and replaces it at 1×; the check then reads a quiet Jev as the song finishing (2026-09-24).
A reload is counted by new documents, not framenavigated. The REPL rewrites the URL on every evaluate, a same-document navigation that fires framenavigated too. The dev server reloads the tab when songs, samples or site files change; the song is then checked again, up to three tries.
It spends real Jev calls. One run of every song uses the same per-visitor limit as everything else on this machine: the dev server, other agents' checks, and the user's tabs. It waits out the relay's Retry-After between songs.