import type { ConfigError } from '../core/errors.js';
import type { Result } from '../core/result.js';
/**
 * Load an allowed-packages JSON file from disk and return the set of package names.
 * I/O adapter — reads from the file system.
 *
 * The file must contain a JSON array of package name strings, e.g.:
 * ["@scope/pkg-a", "@scope/pkg-b"]
 *
 * @param workspaceRoot - Absolute path to the workspace root.
 * @param filePath - Path to the allowlist file, relative to workspaceRoot.
 * @returns A Result containing the set of allowed package names, or a ConfigError.
 */
export declare function loadAllowedPackages(workspaceRoot: string, filePath: string): Promise<Result<Set<string>, ConfigError>>;
/**
 * Validate that parsed JSON is a non-empty array of strings.
 *
 * @param parsed - The parsed JSON content to validate
 * @param filePath - The path to the file (for error messages)
 * @returns A Result containing a Set of allowed package names, or a ConfigError if validation fails
 */
export declare function validateAllowlistContent(parsed: unknown, filePath: string): Result<Set<string>, ConfigError>;