import { EventEmitter } from 'events';
import type { Message } from '../core/types';
import type { MCPToolDefinition } from '../tools/mcp';
export interface ChatOptions {
    tools?: MCPToolDefinition[];
}
export interface LLMProvider {
    name: string;
    chat(messages: Message[], systemPrompt?: string, options?: ChatOptions): Promise<string>;
    chatStream(messages: Message[], systemPrompt?: string): AsyncIterable<string>;
}
export declare function autoDetectProvider(): {
    name: string;
    model?: string;
    baseUrl?: string;
    apiKey?: string;
};
export declare function createProvider(name?: string | Record<string, any>, model?: string, baseUrl?: string, apiKey?: string, extraHeaders?: Record<string, string>): LLMProvider;
export declare const SUPPORTED_PROVIDERS: readonly ["openai", "ollama", "claude-cli", "deepseek", "qwen", "gemini", "dashscope", "zhipu", "moonshot"];
export declare class FailoverProvider extends EventEmitter implements LLMProvider {
    name: string;
    private providers;
    private failureCounts;
    private readonly MAX_FAILURES;
    private readonly COOLDOWN_MS;
    constructor(providers: LLMProvider[]);
    private isCircuitOpen;
    private recordFailure;
    private recordSuccess;
    chat(messages: Message[], systemPrompt?: string, options?: ChatOptions): Promise<string>;
    chatStream(messages: Message[], systemPrompt?: string): AsyncIterable<string>;
}
/** Wraps multiple providers with automatic failover on 429/5xx errors and circuit breaker */
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