Agentic validation needs different infrastructure

Building agentic feedback loops in code validation presents unique challenges and opportunities, particularly as development increasingly relies on cloud-based agents. Traditional local validation can be hindered by resource constraints and environmental inconsistencies, while CI pipelines, though scalable and reproducible, can be inefficient and costly due to extensive checks and feedback delays. CircleCI has introduced "Chunk sidecars" and "microbuilds" as solutions, offering fast, scalable, and cost-effective remote environments using firecracker microVMs. These innovations provide immediate, agent-friendly feedback without the overhead of full CI processes. The approach allows for incremental syncs and offers the flexibility to manage environments and feedback independently, enhancing efficiency and token use while positioning CircleCI at the forefront of agent-first infrastructure development.