/**
 * A2A Security Scanner
 *
 * Security analysis for A2A (Agent-to-Agent) protocol implementations.
 * Checks agent card security, task isolation, push notification safety,
 * and authentication configuration.
 */
export interface SecurityFinding {
    severity: 'critical' | 'high' | 'medium' | 'low' | 'info';
    category: string;
    title: string;
    description: string;
    recommendation?: string;
}
export interface SecurityReport {
    target: string;
    timestamp: string;
    findings: SecurityFinding[];
    score: number;
    passed: boolean;
    summary: string;
}
export interface A2AScannerConfig {
    timeout_ms?: number;
    strictHttps?: boolean;
    minAuthSchemes?: number;
    checkCapabilities?: boolean;
    headers?: Record<string, string>;
}
export declare class A2ASecurityScanner {
    private config;
    constructor(config?: A2AScannerConfig);
    /**
     * Scan an agent card for security issues
     */
    scanAgentCard(url: string): Promise<SecurityReport>;
    /**
     * Scan for task isolation issues
     */
    scanTaskIsolation(url: string): Promise<SecurityReport>;
    /**
     * Scan push notification security
     */
    scanPushNotifications(url: string): Promise<SecurityReport>;
    /**
     * Run a full security scan (all checks)
     */
    fullScan(url: string): Promise<SecurityReport>;
    private checkAuth;
    private verifyCapabilities;
    private sendProbe;
    private buildReport;
}
/**
 * Format a security report for display
 */
export declare function formatSecurityReport(report: SecurityReport): string;
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