import type { VideoPipelineManifest, VideoStageArtifactName } from './types.js';
import type { VideoProjectWorkspace } from './workspace.js';
export type VideoCheckpointStatus = 'pending' | 'completed' | 'awaiting-approval' | 'retry-required' | 'failed';
export interface VideoStageCheckpoint {
    stage: string;
    status: VideoCheckpointStatus;
    generatedAt: string;
    artifacts: Partial<Record<VideoStageArtifactName, string>>;
    summary: string;
    issues: string[];
    nextAction?: string;
}
export declare function writeStageCheckpoint(workspace: VideoProjectWorkspace, checkpoint: VideoStageCheckpoint): Promise<void>;
export declare function readStageCheckpoint(workspace: VideoProjectWorkspace, stage: string): Promise<VideoStageCheckpoint | null>;
export declare function getNextStage(workspace: VideoProjectWorkspace, manifest: VideoPipelineManifest): Promise<string | null>;
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