/**
 * Helius Documentation Fetcher
 *
 * Fetches official Helius documentation from GitHub for accurate, up-to-date information.
 * Uses llms.txt files which are AI-optimized summaries of the documentation.
 */
export declare const DOCS_INDEX: Record<string, {
    path: string;
    description: string;
}>;
/**
 * Fetch a specific documentation file
 */
export declare function fetchDoc(docKey: string): Promise<string>;
/**
 * Fetch multiple documentation files
 */
export declare function fetchDocs(docKeys: string[]): Promise<Map<string, string>>;
/**
 * Get the list of available documentation topics
 */
export declare function getAvailableDocTopics(): string[];
/**
 * Get documentation index with descriptions
 */
export declare function getDocsIndex(): Array<{
    key: string;
    description: string;
}>;
/**
 * Extract sections from markdown content that match keyword(s).
 *
 * Matches headers whose text contains the keyword (case-insensitive),
 * collecting all content until the next header at same/higher level.
 *
 * When `keywords` is an array, tries each keyword in order and returns the
 * first non-null match (handles header drift across doc versions).
 *
 * `includeLooseMatches` (default `true`): Also include non-header lines
 * containing the keyword outside matched sections. Set `false` for clean
 * section-only extraction (used by plan tools to avoid false positives).
 *
 * Returns `null` if nothing matched.
 */
export declare function extractSections(content: string, keywords: string | string[], opts?: {
    includeLooseMatches?: boolean;
}): string | null;
/**
 * Truncate a doc response to avoid blowing up the context window.
 * Tries to cut at a section boundary for cleaner output.
 */
export declare const MAX_DOC_RESPONSE_CHARS = 15000;
export declare function truncateDoc(text: string, limit?: number): string;
/**
 * Search docs content for a specific term (searches cached docs only)
 */
export declare function searchCachedDocs(searchTerm: string): Array<{
    docKey: string;
    matches: string[];
}>;
/**
 * Clear the docs cache (useful for forcing fresh fetches)
 */
export declare function clearDocsCache(): void;
/**
 * Get cache stats
 */
export declare function getDocsCacheStats(): {
    cachedDocs: string[];
    totalSize: number;
};