import type { StratifyResolvedConfig } from '../types/types.js';
import type { ConfigError } from '../core/errors.js';
import type { Result } from '../core/result.js';
/**
 * Load a layer config file from disk, validate it, and apply defaults.
 * I/O adapter — reads from the file system.
 */
export declare function loadConfigFromFile(workspaceRoot: string, configPath: string): Promise<Result<StratifyResolvedConfig, ConfigError>>;