import type { DatabaseSync } from 'node:sqlite';
import type { ReactionExpression, ReactionLibrary, ReactionLibraryResult, ReactionSetResult, ReactionState } from './reaction-contract.js';
export declare function localReactionExpression(raw: unknown): ReactionExpression;
export declare function localReactionKey(expression: ReactionExpression): string;
/** Durable private facts, never an outbox. Cloud migration requires a separate explicit action. */
export declare class LocalWorldReactions {
    private readonly db;
    private readonly transaction;
    constructor(db: DatabaseSync, transaction: (work: () => void) => void);
    read(scope: string, target: string): ReactionState;
    set(scope: string, target: string, command: {
        expression: ReactionExpression;
        active: boolean;
        expected_revision: number;
        request_id: string;
    }): ReactionSetResult;
    library(scope: string): ReactionLibrary;
    saveLibrary(scope: string, command: {
        items: ReactionExpression[];
        expected_revision: number;
        request_id: string;
    }): ReactionLibraryResult;
    private receipt;
    private saveReceipt;
}
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