Originally published on AI Tech Connect.
What Anthropic actually shipped on 19 May 2026 At Code with Claude London on 19 May 2026, Anthropic added two production-grade primitives to its Managed Agents offering: self-hosted sandboxes and MCP tunnels. The framing was deliberate. Both let regulated teams keep tool execution and data plane inside their own perimeter while still using the Claude agent loop hosted by Anthropic. Self-hosted sandboxes are in public beta. MCP tunnels are in research preview. That distinction matters for procurement. Public beta is generally signed off for production with the usual change-control disclaimers. Research preview tells your security team the interface will move, the SLAs are aspirational, and you should pin SDK versions hard. The headline phrasing from the launch — repeated across coverage…
