I Analysed 200 PRs in Shadcn-UI/UI To Find Duplicates: It Went Surprisingly Well.

The author developed a tool to audit 200 Pull Requests in the shadcn-ui/ui repository, observing an increase in duplicate or misaligned contributions generated by AI agents. This tool identifies PRs solving the same architectural problem, even if approached differently, to assist maintainers of high-traffic projects.