import type { EarsSettings } from '../config.js';
export interface PolishRouteSelection {
    provider: string;
    model: string;
    reasoningEffort?: string;
}
export type PolishRouteSource = 'requested' | 'stored' | 'agent-default';
export interface ResolvedPolishRoute extends PolishRouteSelection {
    source: PolishRouteSource;
}
/** Resolve requested and stored routes as atomic pairs, then use the DSH Agent default when both are empty. */
export declare function resolvePolishRoute(settings: Pick<EarsSettings, 'polishingEnabled' | 'polishProvider' | 'polishModel'>, requestedProvider: string, requestedModel: string, defaultRoute?: PolishRouteSelection): ResolvedPolishRoute | null;