import type { Flow } from '../../types/flow.js';
import type { FlowDefinition } from './types.js';
/** Consecutive eligible nodes in one batched run. Longer chains split. */
export declare const MAX_SEGMENT_LENGTH = 8;
/** Maximal chains per flow. Further eligible runs stay on the per-node path. */
export declare const MAX_SEGMENTS = 32;
export type SegmentKind = 'generate-replies' | 'actions';
export interface FlowSegment {
    readonly nodeIds: readonly string[];
    readonly kind: SegmentKind;
}
/** Pure graph analysis. Keys every node that starts a remaining run of length ≥ 2. */
export declare function computeFlowSegments(def: FlowDefinition): ReadonlyMap<string, FlowSegment>;
/**
 * Segments for a live Flow. Rehydrated flows hash their stash; code-authored
 * flows cannot prove unconditional `next` without running closures, so they
 * get an empty map (per-node path). Computed once per Flow object.
 */
export declare function segmentsForLiveFlow(flow: Flow): ReadonlyMap<string, FlowSegment>;
export declare function segmentStartingAt(flow: Flow, nodeId: string): FlowSegment | undefined;