import type { Debt, SprintFile } from '../types';
export declare const DEBT_CHANGE_ACTIONS: readonly ["add", "start", "resolve", "defer", "escalate", "reconcile"];
export type DebtChangeAction = (typeof DEBT_CHANGE_ACTIONS)[number];
export declare function nextDebtId(debt: readonly Debt[]): string;
export declare function debtOrigin(sprint: SprintFile): number;
/** Shared closed transition contract for CLI writes and historical replay. */
export declare function applyDebtChange(sprint: SprintFile, action: DebtChangeAction, after: Debt): Debt[];
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