import type { ExecutionHarness } from './types.js';
export declare class HarnessRegistry {
    private readonly harnesses;
    register<TInput, TResult>(harness: ExecutionHarness<TInput, TResult>): void;
    get<TInput, TResult>(id: string): ExecutionHarness<TInput, TResult> | undefined;
    require<TInput, TResult>(id: string): ExecutionHarness<TInput, TResult>;
    list(): string[];
}