AgentShield
v1.2.0 StableZero-Leak Secret Defense & Kernel Sandbox for Autonomous AI Coding Agents
AgentShield wraps your AI agent processes (Claude Code, Cursor, Windsurf, Codex, Antigravity) inside OS-level kernel sandboxes. It traps unauthorized syscalls, redacts environment secrets in volatile memory, and blocks credential exfiltration with strict CIDR egress filtering.
Native Kernel Sandboxing Across All Three Operating Systems
Bubblewrap (bwrap) + Landlock LSM
Unprivileged user namespaces, read-only rootfs mounts, isolated network namespaces, and strict PID namespace confinement.
Apple Seatbelt (sandbox-exec)
Scheme-based sandbox profiles restricting file-read, file-write, sysctl inspection, and outbound mach-lookup messaging.
LowBox / AppContainer Isolation
Windows AppContainer low-integrity execution token, restricted process tokens, and firewall capability filtering.
Wrapping Agent Executables in 1 Second
Real-Time Defense Inside VS Code, Cursor & Windsurf
Live Status Bar Kernel Telemetry
Shows active sandbox enforcement (Bubblewrap, Seatbelt, AppContainer) and traps unauthorized egress sockets right from your status bar.
1-Click QuickFix Redactor (Ctrl+.)
Detects exposed AWS, OpenAI, GitHub, and database keys on keystroke. Press Ctrl+. to instantly replace raw secrets with secure environment references.
Anti-Exfiltration Hook
Prevents autonomous agent prompts from reading /proc/self/environ, ~/.ssh, or piping private keys into chat context.
Display the AgentShield Verification Badge on Your Repo
Add our automated SVG status badge to your GitHub repository README to signal enterprise compliance, Landlock kernel sandboxing, and zero secret exfiltration.
[](https://ritualdev.in)<a href="https://ritualdev.in"><img src="https://ritualdev.in/badge/secured.svg" alt="Secured by AgentShield" /></a>Upgrade to AgentShield Pro
Includes native macOS/Windows menu-bar GUI, cloud audit log backup, and centralized policy sync.