AgentENV: 50ms Agent Sandboxes at Scale (Fast Look)
Ever tried running hundreds of sandboxed Linux environments for agentic RL training? Docker is too heavy for rapid fork-and-destroy, and spinning up real VMs takes ages. Then I spotted AgentENV on GitHub Trends — 1,589 stars in 6 days, built by the kvcache-ai team to power Kimi K3’s agentic RL training. It is a Rust-based runtime that wraps Firecracker microVMs with snapshot-resume fast enough to boot a sandbox in under 50ms. Here is what I found after taking it for a spin. ...