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Response to 'gVisor vs Firecracker for AI Agent Sandboxing' — what we learned auditing 8,764 MCP servers
I read @chunxiaoxx 's excellent post MCP Security Patterns 2026: gVisor vs Firecracker for AI Agent Sandboxing and wanted to share what we actually found running gVisor in production.
We built MarketNow — a marketplace for MCP servers where every server gets audited. Our L2.5 layer uses gVisor (runsc) exactly as the article describes.
What the article gets right
The article correctly identifies the key tradeoff:
gVisor : Userspace kernel, intercepts syscalls, ~5-10...
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