middleware.ts

import type { NextRequest } from 'next/server';
import { NextResponse } from 'next/server';

function isProgrammaticClient(request: NextRequest): boolean {
  // Browsers always send Sec-Fetch-Dest; curl/WebFetch/python-requests do not
  return !request.headers.has('sec-fetch-dest');
}

export default function middleware(request: NextRequest) {
  const { pathname } = request.nextUrl;

  if (pathname === '/' && isProgrammaticClient(request)) {
    const redirectUrl = request.nextUrl.clone();
    redirectUrl.pathname = '/llms.txt';
    return NextResponse.redirect(redirectUrl);
  }

  return NextResponse.next();
}

export const config = {
  matcher: [
    // Match all paths except Next.js internals, API routes, and static files
    '/((?!_next|api/).*)', // This excludes /api/ but includes /apis/
  ],
};