/**
 * Validation Utilities for MCP Tools
 *
 * Provides comprehensive input validation and error handling for all MCP tools.
 * Validation is run before each tool call to ensure proper argument types and formats.
 */
export { type TicketComplexity, type WarningSeverity, type StrictnessLevel, type ValidationWarning, type TicketValidationResult, type ComplexityRules, type TicketValidationInput, validationRules, validateTicket, filterWarningsByStrictness, getComplexityRules, isValidComplexity, getComplexityDescription, suggestComplexity, } from './ticket-validation.js';
/**
 * Custom error class for validation failures
 * Includes field name and error code for structured error handling
 */
export declare class ValidationError extends Error {
    field: string;
    code: string;
    constructor(message: string, field: string, code: string);
}
/**
 * API Error class for handling HTTP errors from the backend
 */
export declare class ApiError extends Error {
    statusCode: number;
    errorCode?: string | undefined;
    constructor(message: string, statusCode: number, errorCode?: string | undefined);
}
/**
 * Validate that a value is present (not null, undefined, or empty string)
 */
export declare function validateRequired(value: unknown, fieldName: string): void;
/**
 * Validate that a value is a valid UUID format
 */
export declare function validateUUID(value: string, fieldName: string): void;
/**
 * Validate that a value is one of the allowed enum values
 */
export declare function validateEnum(value: string, fieldName: string, allowedValues: string[]): void;
/**
 * Validate that a number is within a range
 */
export declare function validateRange(value: number, fieldName: string, min: number, max: number): void;
/**
 * Validate that a value is an array, with optional item validation
 */
export declare function validateArray(value: unknown, fieldName: string, itemValidator?: (item: unknown, index: number) => void): void;
/**
 * Validate a 40-character hex SHA
 */
export declare function validateSha(value: string, fieldName?: string): void;
/**
 * Validate an ISO 8601 date string
 */
export declare function validateDate(value: string, fieldName: string): void;
/**
 * Validate a string length
 */
export declare function validateStringLength(value: string, fieldName: string, minLength: number, maxLength: number): void;
type ValidatorFn = (args: Record<string, unknown>) => void;
/**
 * Validators for each tool
 * These are applied before the tool handler is called
 */
export declare const toolValidators: Record<string, ValidatorFn>;
/**
 * MCP error response format
 */
export interface MCPErrorResponse {
    content: Array<{
        type: 'text';
        text: string;
    }>;
    isError: true;
}
/**
 * Transform an error into MCP error response format
 */
export declare function formatMCPError(error: Error): MCPErrorResponse;
/**
 * Transform HTTP/network errors into ApiError
 */
export declare function transformError(error: unknown): Error;
/**
 * Run validation for a specific tool
 * @throws ValidationError if validation fails
 */
export declare function validateToolArgs(toolName: string, args: Record<string, unknown>): void;
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