/**
 * Preflight: would every specialist on this team land on the same adapter?
 *
 * Harnery does not auto-spread. A specialist without an `adapter` pin inherits
 * the run's default, so a team whose profiles all omit the pin puts every child
 * on one adapter. That is legal and sometimes intended. It is a problem when the
 * host is also `subscriptionOnly`, because then the concentration lands on one
 * seat's session meter rather than on metered per-token billing: the seat hits
 * its limit, and every specialist stops at once rather than the team degrading.
 *
 * The check is deliberately narrow, because a false refusal here is worse than
 * the miss it prevents. It fires only when all four hold:
 *
 *   1. more than one specialist (a solo team cannot spread),
 *   2. every specialist resolves to the same adapter,
 *   3. `subscriptionOnly` is on (otherwise concentration is a cost curve, not a
 *      cliff), and
 *   4. more than one adapter is ATTESTED REACHABLE.
 *
 * Condition 4 is the one worth insisting on. Counting *declared* adapters would
 * suggest spreading onto a seat that cannot run — a dead adapter passes a
 * declaration check and then fails every child it is handed. Only an
 * attestation records that the adapter actually completed a turn on this
 * machine, so only an attestation is grounds for telling someone to use it.
 */
export interface AdapterSpreadInput {
    /** Specialist id → its optional adapter pin. */
    specialists: Readonly<Record<string, {
        adapter?: string;
    }>>;
    /** The adapter an unpinned specialist inherits. */
    defaultAdapter: string;
    /** Adapters with a live attestation on this machine — proven to run, not
     * merely registered. */
    reachable: readonly string[];
    /** Whether children are confined to subscription (logged-in) auth. */
    subscriptionOnly: boolean;
}
export interface AdapterSpreadVerdict {
    /** True when the team would put every child on one adapter AND that is worth
     * refusing over. False both when the team spreads and when concentrating is
     * unremarkable (single specialist, one reachable adapter, metered billing). */
    concentrated: boolean;
    /** The adapter everything would land on, when concentrated. */
    adapter?: string;
    /** Operator-facing explanation, present exactly when concentrated. */
    reason?: string;
    /** Attested-reachable adapters this team is not using. */
    unused: string[];
}
export declare function inspectAdapterSpread(input: AdapterSpreadInput): AdapterSpreadVerdict;
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