/**
 * Agent spend reporting — reads cost data directly from harness databases
 * via better-sqlite3 (replaces the Python tools/usage_report.py).
 *
 * Supports opencode (SQLite session table with cost data) and codex
 * (placeholder — no cost data yet). Falls back to empty report when
 * no provider database is found. Fully offline; no backend/daemon needed.
 */
import { type UsageReport, type UsageOptions, type UsageSession } from './usage-reader';
export type { UsageReport, UsageSession, UsageOptions };
export declare class UsageError extends Error {
}
/**
 * Runs the read-only spend report directly from the harness database.
 * Throws UsageError when the database is unavailable (the caller decides
 * how loudly to fail).
 */
export declare function runUsageReport(opts?: UsageOptions): UsageReport;