/**
 * Durable workspace-index events. Bounded, sanitized, replayable and free of
 * source-code dumps and secrets.
 */
export declare const WORKSPACE_INDEX_EVENTS: {
    readonly DISCOVERED: "WORKSPACE_INDEX_DISCOVERED";
    readonly BUILD_STARTED: "WORKSPACE_INDEX_BUILD_STARTED";
    readonly FILE_CLASSIFIED: "WORKSPACE_INDEX_FILE_CLASSIFIED";
    readonly FILE_UPDATED: "WORKSPACE_INDEX_FILE_UPDATED";
    readonly FILE_REMOVED: "WORKSPACE_INDEX_FILE_REMOVED";
    readonly CHUNK_CREATED: "WORKSPACE_INDEX_CHUNK_CREATED";
    readonly SYMBOLS_UPDATED: "WORKSPACE_INDEX_SYMBOLS_UPDATED";
    readonly EMBEDDING_CREATED: "WORKSPACE_INDEX_EMBEDDING_CREATED";
    readonly GENERATION_READY: "WORKSPACE_INDEX_GENERATION_READY";
    readonly BUILD_FAILED: "WORKSPACE_INDEX_BUILD_FAILED";
    readonly BUILD_CANCELLED: "WORKSPACE_INDEX_BUILD_CANCELLED";
    readonly CORRUPTION_DETECTED: "WORKSPACE_INDEX_CORRUPTION_DETECTED";
    readonly REBUILD_STARTED: "WORKSPACE_INDEX_REBUILD_STARTED";
    readonly REBUILD_COMPLETED: "WORKSPACE_INDEX_REBUILD_COMPLETED";
    readonly RETRIEVAL_PLANNED: "WORKSPACE_RETRIEVAL_PLANNED";
    readonly RETRIEVAL_EXECUTED: "WORKSPACE_RETRIEVAL_EXECUTED";
    readonly RESULT_SELECTED: "WORKSPACE_RETRIEVAL_RESULT_SELECTED";
    readonly RESULT_REVALIDATED: "WORKSPACE_RETRIEVAL_RESULT_REVALIDATED";
    readonly RESULT_STALE: "WORKSPACE_RETRIEVAL_RESULT_STALE";
};
export type WorkspaceIndexEventName = (typeof WORKSPACE_INDEX_EVENTS)[keyof typeof WORKSPACE_INDEX_EVENTS];
export interface WorkspaceIndexDurableEvent {
    eventType: string;
    workspaceId: string;
    generationId?: string;
    path?: string;
    counts?: Record<string, number>;
    modelId?: string;
    reasonCode?: string;
    occurredAt: string;
}
/** Sanitize an event payload: never leak source content or secret-bearing values. */
export declare function sanitizeEventPayload(payload?: Record<string, unknown>): Record<string, unknown> | undefined;
export interface EventSink {
    emit(payload: WorkspaceIndexDurableEvent): void;
}
/** No-op sink used when no session/bus is attached. */
export declare const nullSink: EventSink;
/** Aggregates boring per-item events so we don't emit one event per posting. */
export declare function aggregateCounts(events: WorkspaceIndexDurableEvent[]): Record<string, number>;
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