export declare const WORKSPACE_SNAPSHOT_FENCE_SCHEMA_VERSION: 1;
export interface WorkspaceSnapshotFenceDescriptor {
    readonly schemaVersion: typeof WORKSPACE_SNAPSHOT_FENCE_SCHEMA_VERSION;
    readonly snapshotId: string;
    readonly projectId: string;
    readonly revision: number;
    readonly manifestHash: string;
    readonly capturedAt: string;
}
export type RecordWorkspaceSnapshotResult = {
    readonly recorded: true;
    readonly snapshot: WorkspaceSnapshotFenceDescriptor;
} | {
    readonly recorded: false;
    readonly code: 'workspace_snapshot_invalid';
    readonly message: string;
};
export declare function workspaceSnapshotFenceId(projectId: string, revision: number, manifestHash: string, capturedAt: string): string;
export declare function isWorkspaceSnapshotFenceDescriptorValid(snapshot: WorkspaceSnapshotFenceDescriptor): boolean;
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