/**
 * Runtime Graph persistence
 *
 * Reading, writing and canonical-serializing architecture/runtime-dependencies.json. Split out of
 * runtime-graph.ts (which owns the derivation and had grown past the file-size limit).
 *
 * `formatRuntimeJson` is the ONE canonical rendering: validate-runtime-architecture compares the
 * freshly derived graph to the committed one as STRINGS, so any second way of writing this file
 * would show up as unfixable drift.
 */
import type { RuntimeGraph } from './runtime-graph-model';
export declare const DEFAULT_RUNTIME_GRAPH_PATH = "architecture/runtime-dependencies.json";
export declare function saveRuntimeGraph(graph: RuntimeGraph, workspaceRoot: string, graphPath?: string): void;
export declare function runtimeGraphFileExists(workspaceRoot: string, graphPath?: string): boolean;
export declare function loadRuntimeGraph(workspaceRoot: string, graphPath?: string): RuntimeGraph | null;
/** Serialize for an in-memory equality check (matches the on-disk format). */
export declare function serializeRuntimeGraph(graph: RuntimeGraph): string;