Cursor: cloud agents went from 10% of merged PRs in December to over 50%
Cursor's engineering post on its cloud agent environment, which surfaced on Hacker News August 3, discloses that cloud agents authored roughly 10% of merged PRs in December 2025 and over 50% by publication. The setup is less exotic than the number suggests: a Cursor-defined Dockerfile with critical dev dependencies as the base image, Ubuntu VMs (versus Macs locally), and a custom CLI called `anydev` that agents use to start all services, with a supervisor process managing long-running builds and multiple help menus written for the agent to read. Security controls are network egress restrictions, scoped git access, secret scanning, and secret redaction in tool results. The post gives no boot times or concurrency numbers, so read the 50% figure as a self-reported internal metric.
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