/**
 * @name security/approval-required
 * @description Approval threshold check for SAP MCP transactions.
 *
 * Determines whether a transaction requires explicit human approval based on
 * the configured SOL amount threshold (`requireApprovalAboveSol`).
 *
 * @flow
 *   1. Tool handlers call `isApprovalRequired` before executing value transfers.
 *   2. If approval is required, the tool returns an approval prompt to the agent.
 *
 * @module security/approval-required
 */
import type { SapMcpContext } from '../../core/src/types.js';
/**
 * @name isApprovalRequired
 * @description Checks whether a transaction amount exceeds the approval threshold.
 *
 * @param context    — SAP MCP runtime context containing config thresholds.
 * @param amountSol  — Transaction amount in SOL to evaluate.
 * @returns `true` if the amount exceeds `config.requireApprovalAboveSol`, `false` otherwise.
 *
 * @usedBy Tool handlers across the SAP MCP runtime.
 */
export declare function isApprovalRequired(context: SapMcpContext, amountSol: number): boolean;
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