import type { MemoModelDTO } from '../model/semantic.js';
export interface ImpactNode {
    elementId: string;
    name: string;
    kind: string;
    layer: string;
    depth: number;
    /** Relationship type that connects this node to its parent in the traversal */
    viaRelType: string;
    /** Direction of the relationship from the parent's perspective */
    direction: 'downstream' | 'upstream';
}
export interface ImpactEdge {
    fromId: string;
    toId: string;
    relType: string;
    relId: string;
}
export interface ImpactResult {
    rootId: string;
    rootName: string;
    rootKind: string;
    nodes: ImpactNode[];
    edges: ImpactEdge[];
}
export type ImpactDirection = 'downstream' | 'upstream' | 'both';
/**
 * Compute impact analysis via BFS from a root element.
 *
 * - `downstream`: follows outgoing relationships (what does this element affect?)
 * - `upstream`: follows incoming relationships (what depends on this element?)
 * - `both`: follows both directions
 */
export declare function computeImpact(model: MemoModelDTO, elementId: string, direction?: ImpactDirection, maxDepth?: number): ImpactResult;
//# sourceMappingURL=impact.d.ts.map