I checked 13 top open-source repos. 9 have zero AI agent config.

Django. Angular. Vue. Svelte. Tokio. Remix. Cal.com. Airflow. Tauri. None of them have a CLAUDE.md. No .cursorrules. No AGENTS.md. No copilot-instructions.md. Nothing. These are projects with hundreds of contributors. If they don't have AI agent config, your project almost certainly doesn't either. The problem is worse than "no config" The 4 projects that DO have AI configs? Grafana has a CLAUDE.md. It's literally one line: @AGENTS.md. Their hand-written AGENTS.md has 157 lines, but it misses quality gates from their CI. Prisma has a 166-line AGENTS.md that says: "Your training data contains a lot of outdated information that doesn't apply to Prisma 7. Always analyze this codebase like you would analyze a project you are not familiar with." If Prisma's own maintainers don't trust AI training data, why do you? Supabase has three separate AI configs — one for Claude, one for Copilot, one for Cursor. Three tools, three configs, zero overlap. What this means for your code When you use Curs