import type { ReasoningEffort, ReasoningPreference } from "../types.js";
import type { ProviderProfile } from "./provider-profile.js";
export type ControlPayload = Readonly<Record<string, unknown>>;
export interface ReasoningControlSurface {
    readonly reasoning: ProviderProfile["reasoning"];
    readonly capabilities: {
        readonly acceptedParameters?: readonly string[] | undefined;
    };
}
export declare const EFFORT_SCALE: readonly ReasoningEffort[];
export declare function nearestAcceptedEffort(requested: ReasoningEffort, accepted: readonly string[]): string | undefined;
export declare function emitReasoningControls(input: {
    readonly profile: ReasoningControlSurface;
    readonly preference: ReasoningPreference | undefined;
    readonly willReplayReasoning: boolean;
}): ControlPayload;