/**
 * Message format translation between OpenAI (canonical) and Anthropic.
 *
 * OpenAI's chat completion format is the canonical representation used
 * throughout the codebase. This module translates to/from Anthropic's
 * format when a Claude model is selected.
 */
import type { ChatMessage, ToolDefinition, LLMResponse } from './types';
interface AnthropicMessage {
    role: 'user' | 'assistant';
    content: string | AnthropicContentBlock[];
}
type AnthropicContentBlock = {
    type: 'text';
    text: string;
} | {
    type: 'image';
    source: {
        type: 'base64';
        media_type: string;
        data: string;
    };
} | {
    type: 'tool_use';
    id: string;
    name: string;
    input: Record<string, unknown>;
} | {
    type: 'tool_result';
    tool_use_id: string;
    content: string;
};
interface AnthropicTool {
    name: string;
    description?: string;
    input_schema: Record<string, unknown>;
}
/**
 * Extract system messages and translate the rest for Anthropic's API.
 */
export declare function translateMessagesToAnthropic(messages: ChatMessage[]): {
    system: string;
    messages: AnthropicMessage[];
};
/**
 * Translate OpenAI tool definitions to Anthropic format.
 */
export declare function translateToolsToAnthropic(tools: ToolDefinition[]): AnthropicTool[];
/**
 * Translate an Anthropic response to our canonical LLMResponse.
 */
export declare function translateAnthropicResponse(response: {
    content: Array<{
        type: string;
        text?: string;
        id?: string;
        name?: string;
        input?: unknown;
    }>;
    usage?: {
        input_tokens: number;
        output_tokens: number;
    };
    stop_reason?: string;
}): LLMResponse;
export {};