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One Open Source Project a Day (No. 228): AX — Google's Open-Source 'Kubernetes for Agents,' Orchestrating Billions of Agent Tasks with Declarative YAML

AX (google/ax) is Google's open-source, high-throughput, declarative agent orchestration runtime, built to run billions of autonomous agent workloads in a single cluster. It borrows Kubernetes' mental model, describing agent tasks with three core primitives — Task, Workspace, and Model — running on top of the Agent Substrate sandbox, with a kubectl-shaped CLI (apply/get/watch/ssh/suspend/resume). 11,600+ Stars, Apache-2.0 License, still in Alpha.