Learn / Simulate

Write a JavaScript policy, pick a scenario, run it right here. Everything — your code included — runs in your browser only; nothing you write leaves this page, and drafts live in your own localStorage. The simulator is a parity-checked port of the ranked engine, so what works here works on the platform. Practice only: these runs never touch the leaderboard.

Tier-3 practice sessions use the public dev split of the benchmark packs — GSM8K (MIT) and SQuAD (CC BY-SA 4.0) — see packs for full attribution and licenses.

Start in the kitchen, cross to the living room, get the tv on, and settle onto the couch.