/**
 * JSON Schema extraction and component deduplication for OpenAPI documents.
 *
 * @module server/openapi-schemas
 */
import type { OperationRegistry } from './operation-catalog.ts';
/** Schema slots owned by an operation definition. */
export type OpenApiSchemaSlot = 'Input' | 'Output' | 'Event';
export type OpenApiSchemaHelper = {
    readonly components: Record<string, unknown>;
    refFor(operationName: string, slot: OpenApiSchemaSlot): unknown;
};
/**
 * Extract JSON Schemas for every discoverable operation and hoist duplicate
 * schemas into `components.schemas` using canonical-JSON equality.
 */
export declare function extractComponentsSchemas(registry: OperationRegistry): OpenApiSchemaHelper;