Open source · 25 October 2026
Available now

Anthropic releases open-source sandbox-runtime for Claude Code agents

Anthropic's sandbox-runtime (srt) is an open-source OS-level sandbox that restricts file and network access for agents, MCP servers and CLI tools using Seatbelt on macOS and bubblewrap on Linux, eliminating the need for containers.

Why it matters

Assess sandbox capabilities when designing AI agent features; users will expect built‑in access controls.

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