import type { CounterfactualMutationV2 } from "./long-task-delivery-types.js";
type NarrowMutation = Extract<CounterfactualMutationV2, {
    type: "replace_json_value" | "replace_text";
}>;
export declare function applyNarrowSemanticMutation(root: string, mutation: NarrowMutation): Promise<void>;
export declare function mutateSemanticText(current: string, mutation: NarrowMutation, requireChange?: boolean): string;
export {};