Anthropic open-sources OS-level sandbox tool sandbox-runtime
10/24/2026 — 10/24, 21:26·1 sources (all)·1 reports (all)
Key takeaways
- Anthropic has open-sourced sandbox-runtime (srt), the OS-level sandboxing tool behind Claude Code, using macOS Seatbelt and Linux bubblewrap…
Background & analysis
On October 24, 2026 at 19:12 UTC, MarkTechPost published an article titled Introducing Anthropic's sandbox-runtime: OS-Level Sandboxing for AI Agents, No Containers, revealing that Anthropic has open-sourced sandbox-runtime (srt). According to the report, srt is the OS-level sandbox that powers Claude Code. It restricts file and network access for agents, MCP servers and CLI tools, relying on Seatbelt on macOS and bubblewrap on Linux, with no containers required at any point in the workflow. The post also notes that developers can now adopt this official sandboxing solution for AI agents directly. Only this single report has been found so far, and no additional follow-up developments could be verified from the available material. No evaluation or impact assessment appears in the coverage, and no further releases, version numbers or adoption figures were mentioned beyond the initial disclosure.
AI-generated from 1 reports · updated 3 hours ago
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Reports on this story headlines open the original
Anthropic has open-sourced sandbox-runtime (srt), the OS-level sandbox behind Claude Code. It restricts file and network access for agents, MCP servers and CLI tools via Seatbelt on macOS and bubblewrap on Linux, with no containers required.
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