/**
 * Replay a recorded snapshot as if it had just been observed (#1266, #1279).
 *
 * Shared by `chant search --at` and `chant graph --at`. A snapshot already holds
 * what an observation is — resources with their physical ids and attributes,
 * and since #1266 the relationships between them — so turning it back into
 * `LiveObservation[]` lets a replay rejoin the live path at `buildLiveGraphIr`.
 * Every fold, overlay and edge reconstruction below that point is shared, and
 * nothing downstream needs to know which source it got.
 *
 * That sharing is the reason this is a module rather than a helper inside one
 * command: `graph` had no `--at` at all, so anyone wanting the raw IR of a
 * recorded estate had to reach for the live endpoint, and a snapshot could
 * answer most questions but never all of them.
 */
import type { LiveObservation } from "../graph-ir.js";
/**
 * Rebuild observations from a recorded snapshot (#1266).
 *
 * A snapshot already holds what an observation is: resources with their
 * physical ids and attributes, and — since #1266 — the relationships between
 * them. Turning it back into `LiveObservation[]` means the replay rejoins the
 * live path at `buildLiveGraphIr`, and every fold, overlay and query below that
 * is shared. Nothing downstream needs to know which source it got.
 *
 * `latest` is the only ref for now. A specific commit is the natural extension
 * and the storage already supports it (`readSnapshotAt`), but "answer from what
 * is recorded" is the question worth settling first.
 */
/**
 * Whether this environment has a recording, without reading one.
 *
 * Used to turn "the estate could not be read" into "the estate could not be
 * read, and you already have a recording of it". Cheap and best-effort: a
 * failure here means the caller says the plain version of the message, never
 * that the command fails.
 */
export declare function hasSnapshot(environment: string): Promise<boolean>;
export declare function replaySnapshots(environment: string, ref: string, scopedStacks: Set<string>): Promise<{
    observations: LiveObservation[];
    commit: string;
    timestamp: string;
} | {
    error: string;
    hint?: string;
}>;
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