import { ToolResult } from "../types/index.js";
import { ToolDiscovery } from "./tool-discovery.js";
export declare class EnvTool implements ToolDiscovery {
    /**
     * Get all environment variables
     */
    getAllEnv(): Promise<ToolResult>;
    /**
     * Get a specific environment variable by name
     */
    getEnv(varName: string): Promise<ToolResult>;
    /**
     * Search environment variables by pattern (case-insensitive)
     */
    searchEnv(pattern: string): Promise<ToolResult>;
    getHandledToolNames(): string[];
}