SIwithin

SIwithin is a macOS-only tool allowing users to run AI agent command-line interfaces like Claude Code and OpenAI Codex unattended within a secure sandboxed environment, enforcing strict resource, folder access, and budget controls. It provides a ledger for usage auditing, proxied API key management, and a macOS sandbox fence to limit filesystem and network access, ensuring runs operate under specified budgets and permissions without risking user environment or keys.