/**
 * Public catalog identity and generation reads over an opaque DataStore.
 */
import { type Result } from '@opensip-cli/core';
import type { Catalog, CatalogIdentity, GraphReadError } from './types.js';
import type { DataStore } from '@opensip-cli/datastore';
/** Structural RunScope seam used by graph-owned context producer commands. */
export interface ContextCatalogAccessor {
    load(): Result<Catalog | null, GraphReadError>;
    generationIdentity(): Result<string | null, GraphReadError>;
    replace(catalog: Catalog): Result<void, GraphReadError>;
}
/**
 * Read lifted identity columns for the single catalog row without payload.
 * Missing catalog ⇒ ok(null). Storage failures ⇒ err.
 */
export declare function readCatalogIdentity(store: DataStore): Result<CatalogIdentity | null, GraphReadError>;
/**
 * Load the full catalog generation (or null when missing). Storage failures ⇒ err.
 * Retains graph.catalog.read hit|miss|error events via CatalogRepo.
 */
export declare function loadCatalogGeneration(store: DataStore): Result<Catalog | null, GraphReadError>;
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