This store takes USDT on BSC (BEP20) only — that is what keeps it account-free and instant. You need a wallet that can send BEP20 USDT (Trust Wallet, MetaMask, Binance, OKX). The order page shows the exact amount and a scannable address; paying that exact amount unlocks the download automatically.
The 24 recipes
1-6 The loop — anatomy, tool schemas, parallel calls, context budget, observation compression, state machines
7-15 Week two — retry vs replan, idempotent side effects, memory layers, retrieval gating, citations, input and output guardrails, prompt injection, human in the loop