/**
 * repl/engineLoop.ts
 *
 * Runs the AI response loop for both engine types:
 *   - CareerVividProxyEngine  (cv_live_ API key → cloud proxy)
 *   - BYO providers           (OpenAI, Anthropic, OpenRouter, custom)
 *
 * Returns the full accumulated text response for TTS / audit.
 */
import { CareerVividProxyEngine } from "../../../agent/CareerVividProxyEngine.js";
import { QueryEngine } from "../../../agent/QueryEngine.js";
import { type LLMProvider } from "../../../config.js";
import { ToolHandlerState } from "./toolHandlers.js";
export interface EngineRunOptions {
    engine: QueryEngine | CareerVividProxyEngine | null;
    userInput: string;
    selectedProvider: LLMProvider;
    selectedModel: string;
    currentModel: string;
    byoHistory: any[];
    tools: any[];
    systemInstruction: string;
    verbose: boolean;
    sessionTurns: number;
    apiKey: string | undefined;
    baseUrl: string | undefined;
    handleSigInt: () => void;
    toolState: ToolHandlerState;
    onCreditInfo: (remaining: number | null, limit: number | null) => void;
}
/**
 * Run one full agent turn. Returns the accumulated text response.
 */
export declare function runEngineLoop(opts: EngineRunOptions): Promise<string>;
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