/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import type { MessageBus } from '../confirmation-bus/message-bus.js';
import type { ToolInvocation, ToolResult } from './tools.js';
import { BaseDeclarativeTool } from './tools.js';
import type { Config } from '../config/config.js';
/**
 * Parameters for the GrepTool
 */
export interface GrepToolParams {
    /**
     * The regular expression pattern to search for in file contents
     */
    pattern: string;
    /**
     * The directory to search in (optional, defaults to current directory relative to root)
     */
    dir_path?: string;
    /**
     * File pattern to include in the search (e.g. "*.js", "*.{ts,tsx}")
     */
    include?: string;
    /**
     * Optional: Maximum number of matches to return per file. Use this to prevent being overwhelmed by repetitive matches in large files.
     */
    max_matches_per_file?: number;
    /**
     * Optional: Maximum number of total matches to return. Use this to limit the overall size of the response. Defaults to 100 if omitted.
     */
    total_max_matches?: number;
}
/**
 * Implementation of the Grep tool logic (moved from CLI)
 */
export declare class GrepTool extends BaseDeclarativeTool<GrepToolParams, ToolResult> {
    private readonly config;
    static readonly Name = "grep_search";
    constructor(config: Config, messageBus: MessageBus);
    /**
     * Validates the parameters for the tool
     * @param params Parameters to validate
     * @returns An error message string if invalid, null otherwise
     */
    protected validateToolParamValues(params: GrepToolParams): string | null;
    protected createInvocation(params: GrepToolParams, messageBus: MessageBus, _toolName?: string, _toolDisplayName?: string): ToolInvocation<GrepToolParams, ToolResult>;
    getSchema(modelId?: string): import("@google/genai").FunctionDeclaration;
}
