/**
 * @name session/session-limits
 * @description Session spending limit management — per-transaction checks, balance deduction, and daily resets.
 *
 * @flow
 *   1. `checkSpendingLimit` validates a transaction amount against per-transaction and remaining session limits.
 *   2. `deductFromSession` subtracts a spent amount from the session's remaining balance.
 *   3. `resetDailyLimits` resets the session's remaining balance to the maximum per-session limit.
 *
 * @module session/session-limits
 */
import type { SapAgentSession, SapSpendingLimits } from '../../core/src/types.js';
/**
 * @name checkSpendingLimit
 * @description Checks whether a transaction amount is within the session's spending limits.
 *
 * @param session   — The agent session to check against.
 * @param amountSol — The transaction amount in SOL to validate.
 * @returns `{ allowed: true }` if within limits; `{ allowed: false, reason }` with an explanation otherwise.
 *
 * @usedBy Tool handlers across the SAP MCP runtime.
 */
export declare function checkSpendingLimit(session: SapAgentSession, amountSol: number): {
    allowed: boolean;
    reason?: string;
};
/**
 * @name deductFromSession
 * @description Deducts a spent amount from the session's remaining SOL balance and returns the updated limits.
 *
 * @param session   — The agent session to deduct from.
 * @param amountSol — The amount in SOL to deduct.
 * @returns A new `SapSpendingLimits` object with the updated `remainingSessionSol`.
 *
 * @usedBy Tool handlers across the SAP MCP runtime.
 */
export declare function deductFromSession(session: SapAgentSession, amountSol: number): SapSpendingLimits;
/**
 * @name resetDailyLimits
 * @description Resets the session's remaining SOL balance to the maximum per-session limit.
 *
 * Called periodically to reset daily spending counters. In production, a separate
 * daily counter stored in Redis/DB would be reset here.
 *
 * @param session — The agent session whose limits to reset.
 *
 * @usedBy Scheduled limit reset tasks in the SAP MCP runtime.
 */
export declare function resetDailyLimits(session: SapAgentSession): void;
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