import type { LintHit } from './lint-style.js';
export declare const CATALOG_STABILITY_GROWTH_CAP = 0.2;
export declare const CATALOG_STABILITY_WINDOW_DAYS = 90;
export declare const RUNTIME_BUDGET_MS = 2000;
export interface CatalogStabilityInput {
    /** Current catalog size (entries.length). */
    readonly currentSize: number;
    /** Catalog size 90 days ago, or null if no history available. */
    readonly sizeNinetyDaysAgo: number | null;
}
export declare function lintCatalogStability(input: CatalogStabilityInput): readonly LintHit[];
export declare function lintNoOrphanEnforcer(projectRoot: string): readonly LintHit[];
export declare function lintNoOrphanCatalog(): readonly LintHit[];
export declare function lintRuntimeBudget(projectRoot: string, observedMs: number): readonly LintHit[];
/**
 * Read the catalog-stability history file (if it exists). The
 * file is a small JSON document maintained by the release
 * pipeline; absent → null. We do not invent the historical
 * data; absent data means "soft pass".
 */
export declare function readCatalogHistory(projectRoot: string): number | null;