import type { Plan, DomainContext } from "../types/index.js";
export declare function createPlan(id: string, name: string, _ctx: DomainContext, overrides?: Partial<Plan>): Plan;
export declare function activatePlan(plan: Plan, _ctx: DomainContext): Plan;
export declare function completePlan(plan: Plan, _ctx: DomainContext): Plan;
export declare function deprecatePlan(plan: Plan): Plan;
export declare function addMilestone(plan: Plan, milestoneId: string): Plan;
export declare function isAcyclic(plan: Plan, allPlans: Record<string, Plan>): boolean;
export declare function validatePlanInvariants(plan: Plan): string[];