import type { RunIndexEntry } from "./run-index.js";
/** Additive accounting for retained attempts. Null means no estimate, never an invented zero. */
export interface StudyCosts {
    estimatedTotalUsd: number | null;
    runEstimatedUsd: number | null;
    analysisEstimatedUsd: number | null;
    /** Runs with missing or partial participant/desktop estimates. */
    incompleteRunEstimates: number;
    analysisAttempts: number;
    analysisDispatchedAttempts: number;
    analysisNotDispatchedAttempts: number;
    /** Dispatched or potentially dispatched attempts without a complete price. */
    analysisUnpricedAttempts: number;
    /** A dispatch marker/claim survives, but there is no usable final accounting. */
    analysisUnresolvedAttempts: number;
    /** No retained history, legacy report-only usage, or unreadable/conflicting accounting. */
    analysisHistoryUncertainRuns: number;
}
export interface StudyCostRow {
    runId: string;
    costs: StudyCosts;
    warnings: string[];
}
export declare function emptyStudyCosts(): StudyCosts;
export declare function addStudyCosts(into: StudyCosts, next: StudyCosts): void;
/** A read-only, bounded accounting pass. Never validates findings, dispatches, repairs or writes. */
export declare function readStudyCosts(cwd: string, entry: RunIndexEntry): Promise<StudyCostRow>;