Sandbox Escape Techniques

This is a comprehensive reference for breaking out of restricted execution environments, covering everything from CTF pyjails to Docker containers. It's structured as a decision tree with concrete techniques: Python subclass walks to recover builtins, Lua FFI abuse, chroot double-escape patterns, and browser Mojo IPC exploitation. The skill distinguishes between sandbox types (which base models apparently confuse) and provides actual one-liners and code snippets rather than theory. Clearly written for offensive security work, CTF competitions, and penetration testing where you need to escalate from restricted code execution to unrestricted system access. The cross-references to related skills like kernel exploitation and container escape suggest it's part of a larger offensive toolkit.