/**
 * Whether a piece of per-turn grounding reached the model. `empty` is a real
 * answer (nothing relevant); `timed_out` and `failed` mean the model is
 * working without context it would normally have, and must be told so.
 */
export type ContextStatus = "ok" | "empty" | "timed_out" | "failed";
export declare function isContextStatus(value: unknown): value is ContextStatus;
/**
 * The status an app hook reported, from an object with a `status` field.
 * Undefined means the hook reported nothing; a status this code doesn't know
 * is a hook bug, so it counts as `failed` rather than as silence.
 */
export declare function readReportedContextStatus(value: unknown): ContextStatus | undefined;
export declare function worstContextStatus(...statuses: ReadonlyArray<ContextStatus | undefined>): ContextStatus | undefined;
export declare function isContextDegraded(status: ContextStatus | undefined): boolean;
export declare function screenContextUnavailableNote(canViewScreen: boolean): string;
export declare const SELECTION_CONTEXT_UNAVAILABLE_NOTE: string;
/** `partial` when another source did deliver context this turn. */
export declare function preloadedContextUnavailableNote(status: ContextStatus, options?: {
    partial?: boolean;
}): string;