AI Agent Sandboxing: Contain the Blast Radius

Short summary

A detailed argument for sandboxing AI agents as the primary safety control, moving from per-action human review to environment-level containment. Introduces the LoopRails framework's Sandbox-First pattern: no network by default, scoped credentials, locked filesystem, and disposable infrastructure. Explains why human review checkpoints fail at agent speed and volume, and why prevention beats gating.

• •Sandbox-First pattern contains agent mistakes at the environment level rather than relying on human review
• •Human-in-the-loop checkpoints fail due to volume, benign-looking actions, and irreversibility speed
• •Key controls include no network egress, expiring credentials, read-only filesystems, and disposable VMs

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