/**
 * @name HostedToolEligibility
 * @description Guards hosted accountless SAP MCP from charging for tools it cannot execute.
 */
import type { SapMcpConfig } from '../../config-runtime/src/env.js';
import type { ParsedMcpRequest } from './json-rpc.js';
export interface HostedToolEligibilityFailure {
    code: number;
    message: string;
    data: {
        reason: string;
        paymentNotCharged: true;
        blockedTools: string[];
        hostedMode: 'accountless-non-custodial';
        recommendedFlow: string;
        namespaceHint?: string;
        recommendedTools: string[];
    };
}
export declare function recommendedToolsForBlockedTools(blockedTools: readonly string[]): string[];
export declare function evaluateHostedToolEligibility(parsedRequest: ParsedMcpRequest, config: Pick<SapMcpConfig, 'mode' | 'walletPath' | 'externalSignerUrl'>): HostedToolEligibilityFailure | undefined;
export declare function isHostedAccountlessBlockedTool(toolName: string): boolean;
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