PRs NOT Welcome: How Top AI Open Source Projects Are Managing Thousands of Contributors
Top AI open source projects are closing external PRs in favor of agent-run software factories
“over 1,000 open issues and almost 800 pull requests”
Leading AI-native open source projects like Flue, tldraw, and Vercel's AI SDK are rejecting external pull requests—partly because most are AI-generated—and instead deploying their own agent pipelines to triage, reproduce, implement, and review contributions. Vercel's software factory, built to manage a backlog of 1,000+ issues and 800 PRs on a project with 20M weekly npm downloads, is the clearest enterprise-scale example of this shift. This signals a structural change in open source collaboration norms driven by AI-generated contribution volume.