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Selectively permeable boundary for AI agents

55 starsGo

Cagent – Agent in a Cage

by noperator·Feb 28, 2026·2 points·0 comments

AI Analysis

●●●BangerSolve My ProblemNiche GemWizardry

Hard sandbox: nftables firewall + shadowing prevents agent breakout, not just sandboxing.

Strengths
  • nftables + domain allowlist + capability dropping creates layered defense, not just OS jail
  • Filesystem shadowing (placeholder files for secrets) stops agent from even seeing .git or .env
  • Unprivileged user + CAP_NET_ADMIN/CAP_NET_RAW drop prevents inner-container escapes (Sysbox-aware)
Weaknesses
  • Docker + Sysbox dependency limits portability; no native Kubernetes policy equivalent shown
  • Early-stage (no releases, no audit, 0 stars); production readiness claimed but unproven
Category
Target Audience

Teams deploying autonomous AI agents, security-first DevOps engineers

Similar To

Docker security constraints · Kubernetes network policies · Firecracker/gVisor sandboxing

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