A type: hidden requirement rendered through the fallback branch, whose label wrapper shows the field name — so a preset key listed as a second visible field under the email. Bare hidden input, no row. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Y42TyF8Zu7NGRR2893vNcZ