import type { DiscoveryCapability } from "../capabilities/discovery.js";
import type { DiscoveryEngineOptions } from "./types.js";
/**
 * Create the default Discovery engine.
 *
 * The engine is deterministic and read-only. It returns an immutable
 * DiscoverySession containing the full provenance chain.
 */
export declare function createDefaultDiscoveryEngine(options?: DiscoveryEngineOptions): DiscoveryCapability;