Sandbox Coding Agents with a Separate User Account

This article discusses the practice of sandboxing AI coding agents, such as Claude Code, by running them under a separate user account rather than the user's own account. The author explains that this isolation prevents agents from accessing privileged local credentials, reduces the risk of accidental damage, and avoids confusion from shell aliases. Granting read-only access and using YOLO mode becomes safer. The article also touches on monitoring agent behavior and the importance of limiting access to prevent potential disasters. It is a technical guide focused on software development security and AI tooling.