import { type ToolDefinition } from '@opencode-ai/plugin';
export declare function tokenize(text: string): string[];
export interface BM25Index {
    docCount: number;
    avgDocLength: number;
    terms: Map<string, Set<string>>;
    docFreqs: Map<string, number>;
    docLengths: Map<string, number>;
    docTfs: Map<string, Map<string, number>>;
    docKeys: string[];
}
export interface BM25Options {
    k1?: number;
    b?: number;
    limit?: number;
}
export declare function buildIndex(files: string[]): BM25Index;
export declare function bm25Search(query: string, index: BM25Index, options?: BM25Options): Array<{
    file: string;
    line: number;
    score: number;
    snippet: string;
}>;
export interface SearchResult {
    file: string;
    line: number;
    column: number;
    snippet: string;
    score: number;
}
export declare function astGrepSearch(pattern: string, lang: string, searchPath: string): Promise<SearchResult[]>;
export declare function doraSymbolSearch(name: string): Promise<{
    success: boolean;
    results: SearchResult[];
    hint?: string;
}>;
export declare function buildSearchIndex(searchPath?: string): {
    filesIndexed: number;
    termCount: number;
};
export declare function getIndexStatus(): {
    filesIndexed: number;
    termCount: number;
    indexedPath: string | null;
};
export declare function fuseResults(bm25Results: Array<{
    file: string;
    line: number;
    score: number;
    snippet: string;
}>, astResults: Array<{
    file: string;
    line: number;
    score: number;
    snippet: string;
}>, symbolResults: Array<{
    file: string;
    line: number;
    score: number;
    snippet: string;
}>): Array<{
    file: string;
    line: number;
    score: number;
    snippet: string;
    sources: string[];
}>;
export declare function runCodeSearch(query: string, searchPath?: string, limit?: number): Promise<{
    success: boolean;
    results: Array<{
        file: string;
        line: number;
        score: number;
        snippet: string;
        sources: string[];
    }>;
    meta: {
        bm25Count: number;
        astCount: number;
        symbolCount: number;
        totalFused: number;
    };
}>;
export declare const codeSearchTool: ToolDefinition;
export declare const codeSearchIndexTool: ToolDefinition;
export declare const codeSearchStatusTool: ToolDefinition;