import type { TierResult } from "./fetch-utils.js";
/**
 * Fetch page content from the Hister browsing-history index via its MCP endpoint.
 *
 * Uses the `url:` field filter to find an exact URL match — pages that Ted's Firefox
 * extension has already indexed. Returns null if Hister is not configured, the URL is
 * not in the index, or the call fails for any reason.
 */
export declare function histerFetch(url: string, maxChars?: number): Promise<TierResult | null>;