export type PlanningArtifactKind = 'prd' | 'test-spec' | 'deep-interview' | 'deep-interview-autoresearch';
export interface PlanningArtifactNameInfo {
    kind: PlanningArtifactKind;
    slug: string;
    timestamp?: string;
}
export declare function planningArtifactTimestamp(date?: Date): string;
export declare function parsePlanningArtifactFileName(fileNameOrPath: string): PlanningArtifactNameInfo | null;
export declare function planningArtifactSlug(fileNameOrPath: string, kind: PlanningArtifactKind): string | null;
export declare function comparePlanningArtifactPaths(left: string, right: string): number;
export declare function selectMatchingTestSpecsForPrd(prdPath: string | null, testSpecPaths: readonly string[]): string[];
export declare function selectLatestPlanningArtifactPath(paths: readonly string[]): string | null;
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