/**
 * Lower attention tier: one collapsed row per (work item, participant), bumped
 * per comment to stale-date read receipts. Participants derive per write —
 * recent authors + creator, minus the comment's mentions; nothing subscribes.
 */
import type { FactoryStorageOps } from '@mastra/core/storage';
import type { FactoryMentionRef, WorkItemCommentRow } from './base.js';
/** Ceiling: an author silent for this many comments stops receiving; a real participants table is the upgrade. */
export declare const PARTICIPANT_SCAN_LIMIT = 200;
export interface WorkItemActivityRow {
    id: string;
    orgId: string;
    factoryProjectId: string;
    workItemId: string;
    participantId: string;
    occurrence: number;
    latestCommentId: string;
    latestAuthorId: string;
    latestAuthorName: string | null;
    occurredAt: Date;
}
export declare function fanOutWorkItemActivity(ops: FactoryStorageOps, { comment, recentAuthors, createdBy, mentions, now, }: {
    comment: WorkItemCommentRow;
    recentAuthors: string[];
    createdBy: string;
    mentions: FactoryMentionRef[];
    now?: Date;
}): Promise<void>;
/** One bounded keyset page of a participant's activity rows, newest-first. */
export declare function listActivityForUser(ops: FactoryStorageOps, { orgId, factoryProjectId, userId, before, limit, }: {
    orgId: string;
    factoryProjectId: string;
    userId: string;
    before?: {
        occurredAt: Date;
        id: string;
    };
    limit: number;
}): Promise<WorkItemActivityRow[]>;
//# sourceMappingURL=activity.d.ts.map