kagent 0.9.9 validates Agent Sandbox and Agent Substrate differently

The author evaluates three architectural choices for running AI agents in Kubernetes—plain pods, agent-sandbox, and Agent Substrate—comparing their isolation, density, and operational overhead. The analysis concludes that while Agent Substrate significantly reduces idle resource consumption by time-multiplexing stateless actors across a worker pool, it introduces trade-offs in restore latency, snapshot storage management, and observability. Open article →