/** Reading a run's node graph: what a node's runtime record is, what feeds it,
 *  which of its edges have fired, which of its nodes can still be reached, and
 *  which sessions upstream of it are still readable. */
import type { WorkflowNodeRunRecord, WorkflowRunDetail } from "./runtime.js";
export declare function nodeRun(run: WorkflowRunDetail, nodeId: string): WorkflowNodeRunRecord;
export declare function incoming(run: WorkflowRunDetail, nodeId: string): {
    id: string;
    from: {
        nodeId: string;
        port: string;
    };
    to: {
        nodeId: string;
        port: "input";
    };
}[];
/** Every completed ancestor of `nodeId`, with the session that produced it when
 *  there is one — the transcripts a phase is allowed to read for context. */
export declare function upstreamSessions(run: WorkflowRunDetail, nodeId: string): Array<{
    nodeId: string;
    sessionId?: string;
}>;
export declare function terminalNode(node: WorkflowNodeRunRecord): boolean;
/** Whether an edge has fired: its source is done, and the port it leaves by is the
 *  one that source chose. Only a routing node chooses; everything else leaves by
 *  `success`, and a failed employee leaves by `error` if anything is wired there. */
export declare function edgeActivated(run: WorkflowRunDetail, edge: WorkflowRunDetail["definition"]["edges"][number]): boolean;
export declare function canNeverActivate(run: WorkflowRunDetail, nodeId: string): boolean;
export declare function mergeReady(run: WorkflowRunDetail, nodeId: string): boolean;
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