import { PlanTask, SessionPlan } from "./sqlite-backend.js";
export declare function normalizeTaskDependencies(tasks: PlanTask[]): boolean;
export declare function shortenPlanGoal(raw: string): string;
export declare function nextPlanTaskId(tasks: readonly Pick<PlanTask, "id">[]): string;
export declare function appendPlanTask(plan: SessionPlan, input: Omit<PlanTask, "id"> & {
    id?: string | undefined;
}): PlanTask;
export declare function applyForegroundSnapshot(draft: SessionPlan, snapshot: SessionPlan): void;