/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { type GroundingMetadata } from '@google/genai';
import { BaseToolInvocation, type ToolResult } from './tools.js';
import type { MessageBus } from '../confirmation-bus/message-bus.js';
import { Config } from '../config/config.js';
export interface GroundingChunkWeb {
    uri?: string;
    title?: string;
}
export interface GroundingChunkItem {
    web?: GroundingChunkWeb;
}
export interface GroundingSupportSegment {
    startIndex: number;
    endIndex: number;
    text?: string;
}
export interface GroundingSupportItem {
    segment?: GroundingSupportSegment;
    groundingChunkIndices?: number[];
    confidenceScores?: number[];
}
/**
 * Parameters for the WebSearchTool.
 */
export interface WebSearchToolParams {
    /**
     * The search query.
     */
    query: string;
}
/**
 * Extends ToolResult to include sources for web search.
 */
export interface WebSearchToolResult extends ToolResult {
    sources?: GroundingMetadata extends {
        groundingChunks: GroundingChunkItem[];
    } ? GroundingMetadata['groundingChunks'] : GroundingChunkItem[];
}
/**
 * Tool invocation for performing web searches using Google Search via the Gemini API.
 */
export declare class GoogleWebSearchToolInvocation extends BaseToolInvocation<WebSearchToolParams, WebSearchToolResult> {
    private readonly config;
    constructor(config: Config, params: WebSearchToolParams, messageBus?: MessageBus);
    getToolName(): string;
    getDescription(): string;
    execute(signal: AbortSignal): Promise<WebSearchToolResult>;
}