/**
 * AnthropicProvider — wraps Claude models via Anthropic's Messages API.
 *
 * Supports Claude Opus 4.5, Sonnet, Haiku, and any future anthropic models.
 * Translates our internal Gemini-style Content history ↔ Anthropic messages.
 *
 * IMPORTANT: Anthropic requires a separate system prompt (not in messages[]),
 * and tool result messages use a special "tool_result" content block format.
 */
import type { LLMProvider, LLMRequest, LLMResponse, LLMStreamChunk } from "./LLMProvider.js";
export interface AnthropicProviderOptions {
    apiKey: string;
}
export declare class AnthropicProvider implements LLMProvider {
    private apiKey;
    constructor(options: AnthropicProviderOptions);
    private geminiSchemaToJsonSchema;
    private toAnthropicTools;
    private toAnthropicMessages;
    generate(request: LLMRequest): Promise<LLMResponse>;
    generateStream(request: LLMRequest, onChunk: (chunk: LLMStreamChunk) => void): Promise<LLMResponse>;
}
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