import { type DecisionInput, type DecisionModel, type DecisionResult } from '@zhivex-ai/core/provider';
/** Experimental. Registrations authorize only explicitly selected decision destinations. */
export interface GatewayDecisionTarget {
    model: DecisionModel;
    /** Application-supplied conservative reservation including all applicable premiums. Not a provider quote. */
    reserveUSD?: number;
}
export interface GatewayDecisionRequest extends DecisionInput {
    primary: string;
    alternatives?: readonly string[];
    /** Explicit status allowlist. Empty by default; refusals never trigger fallback. */
    fallbackOn?: readonly (429 | 500 | 502 | 503 | 504)[];
    /** Total network attempts, including primary. Defaults to one; no same-target retries. */
    maxAttempts?: number;
    /** Request-local reservation ceiling. Unknown target reservation fails closed. */
    maxReservedUSD?: number;
    allowedProviders?: readonly string[];
    allowedEndpoints?: readonly string[];
    requirePerQuestionRefusal?: boolean;
}
export interface GatewayDecisionResult extends DecisionResult {
    routing: {
        target: string;
        attempts: number;
        reservedUSD?: number;
    };
}
export declare function createGatewayDecide(registry?: Readonly<Record<string, GatewayDecisionTarget>>, defaultTimeoutMs?: number): (request: GatewayDecisionRequest) => Promise<GatewayDecisionResult>;
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