import type { CostKnowledge, HarnessEvent, ProcessingCostBasis, ProcessingReceipt, UsageCostBasis } from "@claudexor/schema";
type AuthMode = "local_session" | "api_key" | null;
type ProcessingEvidence = Pick<HarnessEvent, "processing" | "processing_cost_basis">;
export interface UsageCostTotals {
    cashUsd: number;
    valuationUsd: number;
    unknownUsd: number;
    cashEstimated: boolean;
    valuationEstimated: boolean;
}
/** Observed amount meaning is independent from prospective billing. A native
 * premium tariff alone never turns a token estimate into a debit receipt. */
export declare function usageAmountKind(route: AuthMode, amount: UsageCostBasis | undefined, processing?: ProcessingReceipt, billing?: ProcessingCostBasis): UsageCostBasis["kind"];
/** Event-local accounting evidence shared by attempts and reviewers. The
 * BudgetLedger remains the sole authority for family spend and reservations. */
export declare class UsageCostTracker {
    readonly totals: UsageCostTotals;
    unknownPaidUsd: number;
    private processing?;
    private billing?;
    private active;
    private activeSawEvent;
    private activePaid;
    private activeCashReceipt;
    private intervalKey;
    private sawRoute;
    private sawUnknownUsage;
    private sawValuation;
    private unresolvedPaid;
    private unknownPaidAmount;
    constructor(totals?: UsageCostTotals);
    startAttempt(evidence?: ProcessingEvidence): void;
    observeEvent(route: AuthMode, evidence?: ProcessingEvidence): void;
    observeUsage(route: AuthMode, usd: number, estimated: boolean, event?: HarnessEvent): void;
    finishAttempt(): void;
    snapshot(): {
        cashKnowledge: CostKnowledge;
        valuationKnowledge: CostKnowledge;
    };
}
export {};
//# sourceMappingURL=usage-evidence.d.ts.map