/**
 * ToolSearchIndex — keyword-based search over registered MCP tools.
 *
 * Implements case-insensitive substring matching against both tool name
 * and description. Returns matching tools with their full schema information.
 */
import type { ToolEntry } from './types.js';
/** A search result entry — subset of ToolEntry returned to callers. */
export interface ToolSearchResult {
    name: string;
    description: string;
    namespace: string;
    functionName: string;
    inputSchema?: Record<string, unknown>;
}
export declare class ToolSearchIndex {
    private readonly tools;
    constructor(tools: ToolEntry[]);
    /**
     * Search tools by keyword query.
     *
     * Performs case-insensitive substring matching against both the tool name
     * and description. Returns an empty array if query is blank.
     *
     * @param query  Keyword string to search for.
     * @returns      Array of matching ToolSearchResult entries.
     */
    search(query: string): ToolSearchResult[];
    /** Return all tools as search results (no filtering). */
    getAll(): ToolSearchResult[];
}
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