import type { DisplayState } from './widgetApi';
/** A single quality health check from a widget about its configuration/data. */
export interface ConfigurationHealthCheck {
    /** Machine-readable identifier, e.g. 'categoryCount', 'rowVariety'. */
    code: string;
    /** Human-readable description, e.g. '12 categories — good distribution'. */
    description: string;
    suggestions?: string;
    /** Quality score: 0 = terrible, 0.5 = acceptable, 1 = perfect. */
    score: number;
}
/** Collect health checks using a push callback, filtering out undefined values. */
export declare function collectHealthChecks(fn: (push: (check: ConfigurationHealthCheck | undefined) => void) => void): ConfigurationHealthCheck[];
export interface DiagnosticsResult {
    displayState: keyof DisplayState;
    /** Per-aspect quality health checks from the widget. */
    healthChecks: ConfigurationHealthCheck[];
}