Pass one of the following lowercase slugs in agent_type. Each maps to a lane with its own scenario bank and scoring profile.

• sales — Revenue conversations, objections, and advancing deals.
• support — Incidents, de-escalation, and policy-aligned answers.
• outreach — Prospecting, follow-ups, and qualification dialogues.
• scheduling — Calendar coordination and booking flows.

Unknown values may be rejected as validation tightens. Stay on this set for production traffic until new lanes are announced in the changelog.