import Anthropic from '@anthropic-ai/sdk';
import { BaseAIProvider, UniversalMessage as UniversalMessage$1, ChatOptions as ChatOptions$1 } from '@robota-sdk/agents';

/**
 * Valid provider option value types
 */
type ProviderOptionValue = string | number | boolean | undefined | null | Anthropic | ProviderOptionValue[] | {
    [key: string]: ProviderOptionValue;
};
/**
 * Base provider options interface
 */
interface ProviderOptions {
    /**
     * Additional provider-specific options
     */
    [key: string]: ProviderOptionValue;
}
/**
 * Anthropic provider options
 *
 * Note: Anthropic API doesn't support response format configuration.
 * JSON output can be requested through prompt instructions.
 */
interface AnthropicProviderOptions extends ProviderOptions {
    /**
     * Anthropic API key (required when client is not provided)
     */
    apiKey?: string;
    /**
     * API request timeout (milliseconds)
     */
    timeout?: number;
    /**
     * API base URL
     */
    baseURL?: string;
    /**
     * Anthropic client instance (optional: will be created from apiKey if not provided)
     */
    client?: Anthropic;
}

type UniversalMessage = UniversalMessage$1;
type ChatOptions = ChatOptions$1;
/**
 * Anthropic provider implementation for Robota
 *
 * IMPORTANT PROVIDER-SPECIFIC RULES:
 * 1. This provider MUST extend BaseAIProvider from @robota-sdk/agents
 * 2. Content handling for Anthropic API:
 *    - When tool_calls are present: content MUST be null (not empty string)
 *    - For regular assistant messages: content should be a string
 * 3. Use override keyword for all methods inherited from BaseAIProvider
 * 4. Provider-specific API behavior should be documented here
 *
 * @public
 */
declare class AnthropicProvider extends BaseAIProvider {
    readonly name = "anthropic";
    readonly version = "1.0.0";
    private readonly client;
    private readonly options;
    constructor(options: AnthropicProviderOptions);
    /**
     * Generate response using UniversalMessage
     */
    chat(messages: UniversalMessage[], options?: ChatOptions): Promise<UniversalMessage>;
    /**
     * Generate streaming response using UniversalMessage
     */
    chatStream(messages: UniversalMessage[], options?: ChatOptions): AsyncIterable<UniversalMessage>;
    supportsTools(): boolean;
    validateConfig(): boolean;
    dispose(): Promise<void>;
    /**
     * Convert UniversalMessage to Anthropic format
     *
     * CRITICAL: Anthropic API requires specific content handling:
     * - tool_use messages: content MUST be null
     * - regular messages: content should be a string
     */
    private convertToAnthropicFormat;
    /**
     * Convert Anthropic response to UniversalMessage
     */
    private convertFromAnthropicResponse;
    /**
     * Convert tools to Anthropic format
     */
    private convertToolsToAnthropicFormat;
    /**
     * Validate UniversalMessage array
     */
    protected validateMessages(messages: UniversalMessage[]): void;
}

/**
 * @robota-sdk/anthropic package
 *
 * Provides Provider implementation for using Anthropic API with provider-agnostic UniversalMessage.
 */

declare function createAnthropicProvider(_options: AnthropicProviderOptions): void;

export { AnthropicProvider, type AnthropicProviderOptions, type ProviderOptionValue, type ProviderOptions, createAnthropicProvider };