import type { WorkspaceCheckpointRequest, WorkspaceForkRequest } from "@tangle-network/agent-interface";
export interface CheckpointMarker {
    version: 1;
    kind: "checkpoint";
    idempotencyKey: string;
    requestDigest: `sha256:${string}`;
    request: WorkspaceCheckpointRequest;
    /** True only for markers written by the pre-128-byte-tag release. */
    legacy?: boolean;
}
export interface ForkMarker {
    version: 1;
    kind: "fork";
    idempotencyKey: string;
    requestDigest: `sha256:${string}`;
    request: WorkspaceForkRequest;
    /** New markers identify children created from the durable checkpoint. */
    materialization?: "snapshot";
}
export declare function checkpointMarkerTags(request: WorkspaceCheckpointRequest): string[];
/** Rebuild the exact tags used by the release before the current safe format. */
export declare function legacyCheckpointMarkerTags(request: WorkspaceCheckpointRequest): string[];
export declare function forkMarkerMetadata(request: WorkspaceForkRequest, materialization?: "snapshot" | undefined): Record<string, unknown>;
export declare function markerBelongsToSource(marker: ForkMarker, provider: string, sourceEnvironmentId: string): boolean;
export declare function checkpointMarkerBelongsToSource(marker: CheckpointMarker, provider: string, sourceEnvironmentId: string): boolean;
export declare function checkpointMarkerFromTags(tags: string[] | undefined, key?: string): CheckpointMarker | undefined;
export declare function forkMarkerFromMetadata(metadata: Record<string, unknown> | undefined, key?: string): ForkMarker | undefined;