AI agents do not fail in one place

They fail across concurrency, retries, timeouts, queues, tools, streams, and provider calls. That is why the JavaScript ecosystem has huge demand for separate async primitives: Package Weekly Downloads p-limit ~204M p-map ~53M p-timeout ~36M p-retry ~38M async-retry ~24M p-queue ~23M bottleneck ~10M These libraries are good. But the production pain is deeper: You want concurrency → add p-limit You want retries → add p-retry You want timeouts → add p-timeout You want queues → add p-queue You want rate limits → add bottleneck Now each primitive owns a different part of the lifecycle.