Fail-closed spend guard for x402 agent payments: stateful policy plugin, EIP-3009 replay middleware, and DrainBench — a reproducible adversarial drain benchmark
Skill Claude CodeCodex
Independent adversarial security review of a custody-spine change against SECURITY.md. Spawns a FRESH reviewer subagent that did NOT write the code, prompted to break the diff (cap overspend, window-slide, early release, fail-open void-return, TOCTOU, dedup/replay bypass, honest-scope overclaim, DrainBench fairness…
Skill Claude CodeCodex
Ultra-compressed communication mode. Cuts token usage 75% by speaking like caveman while keeping full technical accuracy. Supports intensity levels: lite, full (default), ultra, wenyan-lite, wenyan-full, wenyan-ultra. Use when user says "caveman mode", "talk like caveman", "use caveman", "less tokens", "be brief", or…