Vercel Firewall and Observability Plus now support custom rules targeting specific Server Action names, such as rate limiting app/auth/actions.ts#getUser to 100 requests per minute per IP address, starting with Next.js 15.5.
Added to The Deploy Log , updated . Read Edition 6, the edition that carried it.
17 rows from Vercel in The Deploy Log are dated on or before this one, this one included.