Every AI-security game trains the attacker. Blast Radius trains the operator who approves your coding agent's actions. Each round shows a real proposed action—a slopsquatted install, a curl|bash, a skill reaching for ~/.ssh. You approve, sandbox, or reject, and name the tell. The twist: nothing reaches your screen unless it passes a deterministic correctness gate against verified ground truth—so it can never teach you a false lesson. Ships as a game + CLI, GitHub Action, MCP server. MIT.
