Sentra - Execution Firewall for OpenClaw

Execution firewall for AI agents written in Rust. Uses seccomp-BPF syscall filtering to block dangerous operations at the kernel level, with policy-based command governance via regex rules and Python sandbox isolation using namespaces + cgroups. Includes WhatsApp/Telegram integration and deploys free on Oracle Cloud. Why we added it: Real kernel-level sandboxing for agent code execution — addresses the trust gap when AI runs arbitrary code.