/**
 * OpenRouter implementation of `ActionAdvisor`. Default model is
 * `google/gemini-2.5-flash` per the design doc; any
 * vision-capable OpenAI-compatible model OpenRouter exposes will work
 * by overriding `model`.
 *
 * Soft-failure protocol: this provider returns `null` on every recoverable
 * problem (HTTP non-2xx, malformed JSON, missing fields, USD budget
 * exhausted). The crawler treats `null` as "no opinion, fall back to
 * heuristic". The provider does not throw on bad model output —
 * exceptions only escape on programmer errors (e.g. asset missing).
 */
import type { ActionAdvisor } from "./types.js";
export interface OpenRouterAdvisorOptions {
    apiKey: string;
    /** Default: "google/gemini-2.5-flash". */
    model?: string;
    /** Default: "https://openrouter.ai/api/v1". */
    baseUrl?: string;
    /** Override fetch for tests. Default: globalThis.fetch. */
    fetch?: typeof globalThis.fetch;
    /** Cumulative USD ceiling. After this the advisor returns null without hitting the network. */
    budgetUsd?: number;
}
export declare function openRouterAdvisor(opts: OpenRouterAdvisorOptions): ActionAdvisor;
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