import { SchemaBase } from './dsl.js';
import type { DtoMessage } from './dto.js';
/** Shared API call signature: one request DTO in, one response shape out.
 *  Referenced by both backend controller methods and frontend page providers —
 *  both sides must use the exact same instance, so drift is impossible. */
export interface EndpointSchema extends SchemaBase {
    type: 'endpoint';
    args: DtoMessage;
    results: DtoMessage | number | boolean | string;
}
export declare function defineEndpoint(name: string, options: {
    args: DtoMessage;
    results: DtoMessage | number | boolean | string;
    description?: string;
}): EndpointSchema;