Improved Anthropic Sandbox Runtime (ASRT) - A general-purpose tool for wrapping security boundaries around arbitrary processes (sysid fork with several improvements and bug fixes)
CommunityActiveNot testedUpdated 4/3/2026
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MCPpedia
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No CVEsActivestdio
Should you use this server?
Improved Anthropic Sandbox Runtime (ASRT) - A general-purpose tool for wrapping security boundaries around arbitrary processes (sysid fork with several improvements and bug fixes)
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Is it safe?
No known CVEs for @sysid/sandbox-runtime-improved.
No authentication — any process on your machine can connect to this server.
License not specified.
Last scanned 0 days ago.
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Is it maintained?
Last commit 3 days ago. 2 GitHub stars.
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Will it work with my client?
Transport: stdio. Works with Claude Desktop, Cursor, Claude Code, and most MCP clients.
A
How much context will it use?
0 tools. Token cost not measured.
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What if it doesn't work?
Common issues: JSON syntax errors in config, wrong Node.js version, npx cache. Setup guide covers troubleshooting.