/** useVendoContext's write half: one entry per mounted hook instance. */
export declare function publishSituation(key: symbol, data: Record<string, unknown>): void;
export declare function retireSituation(key: symbol): void;
/** URL + title, then the page's accessibility tree (aria-snapshot handles
    visibility). Over budget, main content first: retry from <main> alone,
    then hard-truncate with an honest marker. */
export declare function captureScreen(): string | undefined;
/** The merged situation for ONE send: published host data (publish order,
    later entries win a repeated key), then the screen. Undefined when there is
    nothing to say — the POST body then carries no `context` at all. */
export declare function currentSituation(capture: boolean): Record<string, unknown> | undefined;