import { z } from "zod";
import type { AgentTool } from "@kenkaiiii/gg-agent";
import { type ToolOperations } from "./operations.js";
declare const GrepParams: z.ZodObject<{
    pattern: z.ZodString;
    path: z.ZodOptional<z.ZodString>;
    include: z.ZodOptional<z.ZodString>;
    max_results: z.ZodOptional<z.ZodNumber>;
    case_insensitive: z.ZodOptional<z.ZodBoolean>;
}, z.core.$strip>;
export interface GrepToolOptions {
    /** Wall-clock budget for one call. Overridable so tests can trip it without a 5s wait. */
    deadlineMs?: number;
    /**
     * Whether the external `rg` scanner may be used when it is on PATH. Read
     * lazily so a settings change takes effect without rebuilding the toolset.
     */
    useExternalScanner?: () => boolean;
    /** Test seam: smallest scan that uses worker threads (default WORKER_MIN_FILES). */
    workerMinFiles?: number;
}
export declare function createGrepTool(cwd: string, ops?: ToolOperations, options?: GrepToolOptions): AgentTool<typeof GrepParams>;
export declare function detectExternalScanner(): Promise<string | undefined>;
/** Test seam: forget the cached probe result. */
export declare function resetExternalScannerProbe(): void;
/**
 * For each top-level alternative, the longest run of literal characters every
 * match of that alternative contains. `undefined` when any alternative has no
 * such run, since that alternative could match a file containing none of them.
 * Deliberately conservative: groups, classes, escapes of letters/digits and
 * anything non-ASCII end a run instead of being reasoned about.
 */
export declare function requiredLiterals(pattern: string): string[] | undefined;
export {};