import type { Board } from "./model.js";
import type { Entry, Op } from "./ops.js";
/** Captured authoring state, not deployment approval or an execution permission. */
export interface ProposalBasis {
    version: 1;
    snapshot: string;
}
/** A suggestion or proposal no longer matches the work it was made against. */
export declare class StaleSuggestionError extends Error {
}
/** Capture only the state this operation reads or replaces. Never manufacture this on migration. */
export declare function captureProposalBasis(board: Board, op: Op): ProposalBasis;
/** Validate against applied state immediately before the decision is persisted. */
export declare function validateProposalDecision(entries: Entry[], op: Extract<Op, {
    t: "accept" | "reject";
}>, board: Board): void;
/** Pin conversational cards to the board supplied to the model. */
export declare function captureCardPreconditions<T extends {
    ops: Op[];
}>(board: Board, cards: T[]): (T & {
    preconditions: ProposalBasis[];
})[];
/** Check the whole batch against one pre-application snapshot. */
export declare function validateOperationPreconditions(board: Board, ops: Op[], bases?: ProposalBasis[]): void;