import { Type } from '@google/genai';
/**
 * Interface defining the parameters schema for a tool.
 * We use a subset of the Open API/JSON Schema specifically used by Google GenAI.
 */
export interface ToolParameters {
    type: Type | string;
    properties?: Record<string, any>;
    required?: string[];
    description?: string;
    enum?: string[];
    items?: ToolParameters;
}
/**
 * An abstraction of the Claude Code Tool system, adapted for Generation AI.
 */
export interface Tool<P = any, R = any> {
    name: string;
    description: string;
    parameters: ToolParameters;
    /**
     * Whether this tool should require user confirmation in the CLI / UI before running.
     */
    requiresConfirmation?: boolean;
    /**
     * Evaluated when the LLM triggers the tool.
     * @param params Validated arguments from the LLM.
     * @returns Resolves with JSON-serializable outputs or string.
     */
    execute: (params: P) => Promise<R>;
}
/**
 * Converts a Tool definition into a format accepted by @google/genai tool arrays.
 */
export declare function convertToGenAITool(tool: Tool): any;
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