import type { WakeQueueService } from '../inbox/wake-queue.service.js';
import type { AgentRuntime } from '../providers/contract.js';
import type { AgentRuntimeBridge } from './runtime-bridge.js';
import type { RuntimeItemContext, RuntimeWorkerConfig } from './types.js';
import { type CursorDeliveryPlan } from './cursor-delivery.js';
import type { SlackInboxItem } from '../../shared/inbox.js';
export declare const FOLLOWUP_BATCH_MAX_ITEMS = 16;
export declare const FOLLOWUP_BATCH_MAX_PROMPT_BYTES: number;
interface RuntimeFollowupAppenderInput {
    activeContext: RuntimeItemContext;
    agentRuntime: AgentRuntime;
    /** When true, leave follow-ups queued for a post-reload runtime (config pending). */
    isIntakePaused?: () => boolean;
    /** Test seam: inject a deferred restart-drain probe. */
    isRestartDrainActive?: () => Promise<boolean>;
    itemDone: AbortSignal;
    logger: Pick<Console, 'error' | 'log'>;
    onFollowupAccepted: () => void;
    onFollowupAppended: (context: RuntimeItemContext, text: string | undefined) => Promise<void>;
    onFollowupSettled: (context: RuntimeItemContext) => Promise<void>;
    queue: WakeQueueService;
    runtimeBridge: AgentRuntimeBridge;
    runtimeConfig: RuntimeWorkerConfig;
    workerId: string;
}
export declare function appendQueuedFollowupsUntilFinished(input: RuntimeFollowupAppenderInput): Promise<void>;
type FollowupUnit = {
    kind: 'solo';
    context: RuntimeItemContext;
} | {
    kind: 'slack_group';
    lead: RuntimeItemContext;
    members: RuntimeItemContext[];
    mergedPlan: CursorDeliveryPlan;
};
/**
 * Group Slack cursor contexts that share a primary surface. Merge every exact
 * surface across the group (channel + each response-thread) rather than picking
 * one whole plan. Bridge sees one lead context per group (one prompt); members
 * expand into append/mark item ids after selection.
 */
export declare function groupFollowupContexts(contexts: RuntimeItemContext[]): {
    bridgeContexts: RuntimeItemContext[];
    units: FollowupUnit[];
};
/** Union files + previews from all group members onto one Slack inbox item. */
export declare function mergeSlackInboxAttachments(members: SlackInboxItem[], base: SlackInboxItem): SlackInboxItem;
export {};
//# sourceMappingURL=followup-appender.d.ts.map