/**
 * Story 3.3 — induced feature sub-graph (pure, unit-testable).
 */
import type { SutraGraph, SutraFeature, SutraEdge, SutraNode } from "../types.js";
export interface FeatureSubgraph {
    nodeIds: Set<string>;
    nodes: SutraNode[];
    edges: SutraEdge[];
}
/** Edges with both endpoints in feature node set; retains synthetic http:/PROXY targets. */
export declare function subgraph(feature: SutraFeature, graph: SutraGraph): FeatureSubgraph;
/** Issues for a feature, grouped by kind, ordered by severity. */
export declare function featureIssues(graph: SutraGraph, featureId: string): Map<string, typeof graph.issues>;
/** Flows whose entry node belongs to the feature. */
export declare function featureFlows(graph: SutraGraph, feature: SutraFeature): import("../types.js").SutraFlow[];
/** Inbound/outbound edges for a node within the feature subgraph. */
export declare function nodeEdgesInFeature(nodeId: string, sub: FeatureSubgraph): {
    inbound: SutraEdge[];
    outbound: SutraEdge[];
};