diff --git a/proto/next.config.ts b/proto/next.config.ts
index 61b4aab..aba533e 100755
--- a/proto/next.config.ts
+++ b/proto/next.config.ts
@@ -5,6 +5,12 @@ const nextConfig: NextConfig = {
   // Enable standalone output for Docker deployment
   output: 'standalone',
 
+  // NOTE (Next.js 16): `next dev` auto-generates AGENTS.md/CLAUDE.md stub
+  // files describing the framework to AI agents. This project already has
+  // its own agent instruction system (root CLAUDE.md -> .agent/) — a second,
+  // unrelated proto/CLAUDE.md would conflict with it, so this is disabled.
+  agentRules: false,
+
   // NOTE (Next.js 16): `eslint.ignoreDuringBuilds` was removed — `next build`
   // no longer runs ESLint itself (lint is now only `next lint` / `npm run lint`),
   // so there is nothing left to ignore here.