Agent Substrate: From Pods to Sandboxes

In this book, Christian Posta, Global Field CTO at Solo.io, explains the architecture and practices for securely sandboxing and running large numbers of AI agents on Kubernetes.

You'll learn how Agent Substrate keeps agent state, identity, and policy intact while freeing up idle compute, so agents activate quickly, use resources efficiently, and need a smaller infrastructure footprint.

The full book covers the Substrate mental model, a hands-on lab, the activation engine, snapshots and state, and identity and trust.

Once you've read the book, see how kagent builds an agent platform on top of Agent Substrate, and how agentgateway secures and routes agent traffic.