LangChain has published a technical explanation of how Deep Agents can run untrusted code without relying on a traditional sandbox. The post focuses on the design choices needed to isolate execution while preserving useful agent behavior.
The issue is important because coding and research agents often need to execute code from uncertain sources. Without strong controls, that capability can turn a productivity tool into a security risk.
For agent developers, the post highlights a growing theme: execution environments, permissions and verification are now core parts of agent architecture.