Keep human handoff eligibility separate from conversation stage

When a voice flow collects a load reference after verifying the caller, a human request must use the current eligibility facts rather than an earlier-stage transfer helper that assumes identity is still unknown. Reuse the established approved no-load route so screening, configured destination selection, and duplicate-attempt guards remain centralized. If prerequisites or routing are unavailable, return a specific bounded explanation rather than a generic tool-error reask. This approach applies only where policy already permits an approved no-load handoff; it does not authorize unverified callers or arbitrary destinations. Handler and frame tests do not establish audible delivery or live model selection.

Applies when: a legitimate representative request arrives before business context is complete. Keywords: voice handoff identity eligibility screening queue transfer tool errors