import type { ExecutionStep } from "../execution/execution_types.js";
import type { ExecutionStepExecutor } from "./execution_runner.js";
/** AI 产出 patch 提供者(由 AI 宿主/测试注入)。返回 {content} 写入 step.target_file,null=无 patch。 */
export interface PatchProvider {
    getPatch(step: ExecutionStep): {
        content: string;
    } | null;
}
/**
 * 创建 AI Host Executor。
 * patchProvider 注入 patch 来源(测试模拟 / 生产 AI 宿主)。executor 应用 patch,不生成。
 */
export declare function createAiHostExecutor(projectRoot: string, patchProvider: PatchProvider): ExecutionStepExecutor;