import type { WorkItem } from "../work-items/store.js";
import type { ChatBlockEnvelope, CompanyChangedEvent } from "../shared/types.js";
import type { GatewayEmit } from "../shared/gateway-events.js";
export interface ActivityOperation {
    id: string;
    toolName: string;
}
export interface ChatActivityContext {
    sessionExists: (sessionId: string) => boolean;
    hasBlock?: (sessionId: string, blockId: string) => boolean;
    nextActivityOrder?: (sessionId: string, blockId: string) => number;
    applyBlock: (sessionId: string, envelope: ChatBlockEnvelope, fallback: string) => unknown;
    emit: GatewayEmit;
    log?: (message: string) => void;
}
export declare function todoActivityBlock(item: WorkItem, action: string): ChatBlockEnvelope;
/** One persistence/event boundary for all server-authored company mutations.
 * The domain record is already durable when this runs. A verified acting
 * Session gets one stable transcript block; every real mutation gets exactly
 * one company event after that persistence. */
export declare function persistAndEmitActivityBlock(options: {
    context: ChatActivityContext;
    sessionId?: string;
    operation?: ActivityOperation;
    envelope?: ChatBlockEnvelope;
    companyEvent?: CompanyChangedEvent;
    idempotentReplay?: boolean;
}): string | undefined;
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