/**
 * Session and run statistics.
 *
 * Deterministic aggregation of durable telemetry: cost/tokens by
 * role/provider/model, tool calls by tool, mutating calls, web/LSP/job usage,
 * subagent usage, retries, pivots, escalations, stall periods, criteria
 * completion, and finalization-reserve usage. Exposes machine-readable output;
 * never hides reasoning, secrets, or credentials.
 */
import { type BudgetLedger } from "./budget-ledger.js";
import { type CriteriaState } from "./criteria.js";
import type { RunStatistics } from "./types.js";
export interface StatsInput {
    runId: string;
    ledger: BudgetLedger;
    criteria?: CriteriaState;
    webSearches?: number;
    webFetches?: number;
    lspRequests?: number;
    jobStarts?: number;
    subagentRuns?: number;
    retryCount?: number;
    pivotCount?: number;
    escalationCount?: number;
    stallPeriods?: number;
    finalizationReserveUsed?: number;
}
export declare function deriveRunStatistics(input: StatsInput): RunStatistics;
export declare function resourcesUsage(ledger: BudgetLedger): Record<string, {
    total: number;
    estimated: number;
    actual: number;
}>;
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