Agent Substrate 201: Show Me the Architecture
Enough with the high-level diagrams. Let's see how this thing actually works.
What happens when an agent starts a session? How does it get scheduled, isolated, and connected to the outside world? And what happens to all those resources when the agent isn't doing anything?
Join Michael Levan, Nathan Pearce, and Sebastian Maniak as we pull apart the Agent Substrate architecture, trace requests through the system, and explore how kagent and agentgateway fit into the stack. We'll take a closer look at:
- The moving parts: Actors, workers, sandboxes, and the mechanics behind suspend/resume.
- The orchestration: How kagent turns agent definitions into running workloads and manages their lifecycle.
- The network paths: How requests find the right agent, how egress works, and where agentgateway comes in.
- The guardrails: How per-session policies, credential injection, and traffic controls govern access to LLMs and MCP servers.
Join us to see the components, traffic flows, and architectural decisions that make Agent Substrate work. If you've seen the diagrams and wondered what's really happening underneath, this one's for you.


