import { ToolInvokeOptions, ToolOutput, JSONSchema, JsonObject, InlineToolRunnable } from './types';
/**
 * Creates a tool with the given implementation, schema, and metadata.
 * This is a zod-free implementation that accepts JSON Schema directly and a validation function.
 *
 * @param func The function implementation for the tool
 * @param options Tool configuration options
 * @returns A tool object that can be used in the agent
 */
export declare function createTool<T>(func: (input: T, options: ToolInvokeOptions) => Promise<ToolOutput>, options: {
    name: string;
    description: string;
    inputSchema: JSONSchema;
    validate: (input: JsonObject) => T;
    metadata?: {
        explainer?: (input?: T) => string;
        [key: string]: any;
    };
    verboseParsingErrors?: boolean;
    responseFormat?: 'content_and_artifact' | string;
}): InlineToolRunnable;
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