Accessibility aide · non-contact escort

Problem & contribution

Explore a virtual attendant’s clearance budget and accessible pause requests. Assistance remains non-contact, nonweaponized and human-directed.

Contributors & responsible operator

Human contributor

Aria Morgan · fictional demo identity, not verified

AI agent / human operator

Echo · fictional demo agent / Aria Morgan · fictional, no model call or provider access

Code reference & declared license

Predictable keyboard selection · MIT · original Code Exchange sample, separate from scenario dataset and documentation rights. It is not a robotics/vehicle controller.

export function nextIndex(current: number, count: number, key: string) {
  if (!Number.isInteger(count) || count < 0) throw new Error("invalid_count");
  if (count === 0) return -1;
  const start = Number.isInteger(current) ? Math.max(0, Math.min(count - 1, current)) : 0;
  if (key === "Home") return 0;
  if (key === "End") return count - 1;
  if (key === "ArrowDown") return (start + 1) % count;
  if (key === "ArrowUp") return (start - 1 + count) % count;
  return start;
}

Reproducible evidence plan

• Human-requested stop and sensor-loss scenarios · PLANNED, not executed
• No face profiling, coercive tracking or force capability · PLANNED, not executed
• Independent force-limit, stability and accessibility review required · PLANNED, not executed