/**
 * Graph Loader
 *
 * Handles loading and saving the blessed dependency graph file.
 * The graph is stored at architecture/dependencies.json in the workspace root.
 */
import type { EnhancedGraph } from './graph-sorter';
/**
 * Default path for the dependencies file (relative to workspace root)
 */
export declare const DEFAULT_GRAPH_PATH = "architecture/dependencies.json";
/**
 * Load the blessed graph from disk
 *
 * @param workspaceRoot - Absolute path to workspace root
 * @param graphPath - Relative path to graph file (default: .graphs/dependencies.json)
 * @returns The blessed graph, or null if file doesn't exist
 */
export declare function loadBlessedGraph(workspaceRoot: string, graphPath?: string): EnhancedGraph | null;
/**
 * Save the graph to disk
 *
 * @param graph - The graph to save
 * @param workspaceRoot - Absolute path to workspace root
 * @param graphPath - Relative path to graph file (default: .graphs/dependencies.json)
 */
export declare function saveGraph(graph: EnhancedGraph, workspaceRoot: string, graphPath?: string): void;
/**
 * Check if the graph file exists
 */
export declare function graphFileExists(workspaceRoot: string, graphPath?: string): boolean;