import type { App } from "@modelcontextprotocol/ext-apps";
/**
 * Extract full data from MCP tool response by fetching from server cache.
 * The response contains a viz_id in _meta which is used to retrieve cached data.
 * Falls back to client-side localStorage when server cache is unavailable
 * (e.g. conversation reopened after server restart).
 *
 * @param app - Connected MCP App instance
 * @param agentResponse - The tool response containing _meta.viz_id
 * @returns Promise resolving to the full data for visualization
 */
export declare function extractFullData<T = unknown>(app: App, agentResponse: unknown): Promise<T>;