Good-Neighbor Agent Traffic Passport

A budget-bearing RFC 9421-style Ed25519 traffic passport for agents: operators sign per-host budgets capped at directory-published ceilings; hosts verify and meter with graduated allow / throttle / charge / block; a hash-chained compliance log restores an honest fleet in a dispute. Solo $5/mo, Fleet $15/mo, Host-side $19/mo per host property; first month of Solo free once per operator. Client library available at /package.