/**
 * HITL (Human-in-the-Loop) Error Classes
 *
 * Provides structured error handling for HITL safety mechanisms.
 * These errors allow applications to distinguish between different
 * types of HITL failures and handle them appropriately.
 */
/**
 * Base class for all HITL-related errors
 */
export declare class HITLError extends Error {
    readonly confirmationId?: string | undefined;
    constructor(message: string, confirmationId?: string | undefined);
}
/**
 * Thrown when a user explicitly rejects a tool execution request
 * This indicates the HITL system worked correctly - the user saw the request
 * and made a conscious decision to deny it.
 */
export declare class HITLUserRejectedError extends HITLError {
    readonly toolName: string;
    readonly reason?: string | undefined;
    constructor(message: string, toolName: string, reason?: string | undefined, confirmationId?: string);
}
/**
 * Thrown when a confirmation request times out without user response
 * This indicates the user didn't respond within the configured timeout period.
 */
export declare class HITLTimeoutError extends HITLError {
    readonly timeout: number;
    constructor(message: string, confirmationId: string, timeout: number);
}
/**
 * Thrown when HITL configuration is invalid or missing required properties
 */
export declare class HITLConfigurationError extends HITLError {
    constructor(message: string);
}