How Vercel used Cursor to build Queues

This post details how Vercel used Cursor's shadow workspaces and intelligent context management to build Vercel Queues. It highlights the ability of agents to perform end-to-end testing against real AWS environments, including connecting to services, reading side effects, injecting faults, simulating bugs, and verifying results. The post emphasizes the retention of critical details during context compaction, enabling agents to handle complex, long-running tasks. It also showcases the integration of code review and stacked PRs for incremental review, and the use of cloud agents for asynchronous work delegation. The impact on engineering velocity is quantified with metrics like PR throughput increase and cycle time decrease.