/**
 * Path validation utilities for file system operations
 * Ensures paths are absolute and within working directory for security
 */
export interface PathValidationResult {
    isValid: boolean;
    error?: string;
}
/**
 * Validates that a file path is absolute and within the working directory
 *
 * @param filePath - Path to validate
 * @param workingDirectory - Working directory to validate against
 * @returns Validation result with error message if invalid
 */
export declare function validatePath(filePath: string, workingDirectory: string): PathValidationResult;
/**
 * Validates path and checks if file exists
 *
 * @param filePath - Path to validate and check
 * @param workingDirectory - Working directory to validate against
 * @returns Validation result with error message if invalid or doesn't exist
 */
export declare function validatePathExists(filePath: string, workingDirectory: string): Promise<PathValidationResult>;
/**
 * Validates path exists and is a file (not directory)
 *
 * @param filePath - Path to validate
 * @param workingDirectory - Working directory to validate against
 * @returns Validation result with error message if invalid, doesn't exist, or is directory
 */
export declare function validatePathIsFile(filePath: string, workingDirectory: string): Promise<PathValidationResult>;
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