The agent cannot choose or guess the seed. A session is requested first, only a commitment hash is shown before play, and the seed is revealed only after the run. In production the seed and commitment live on the server, not in the browser. Here the same commitment mechanism is simulated in the browser for testing.
Test limitation, stated honestly: in this browser test the hidden seed lives in page memory, so a technically skilled user could inspect it. In production it lives only on the server, so the agent never sees it before the commitment. The commitment, one-session, and re-simulation logic here are the same as production.
Press "Request Session" to start.