export interface ArtifactValidationResult {
    status: "ok" | "error";
    issue_count: number;
    issues: string[];
    /**
     * What the DISCOVERY-based scans actually examined.
     *
     * An empty `issues` array is not evidence of a clean run — it is equally the
     * signature of a scan that matched nothing. Both dispatch discovery filters
     * matched zero files a live run produces (one scanned a retired artifact name,
     * the other a result filename no producer mints), so `status: "ok"` was
     * returned for runs whose entire submission surface went unchecked. Reporting
     * the counts makes "clean" and "never looked" different answers.
     */
    scan: {
        /** Host submissions found under runs/ at the filenames the tool mints. */
        submissions_discovered: number;
        /** Of those, the ones whose payload was read and contract-checked. */
        submissions_validated: number;
        /** Cross-artifact contract-pipeline gates that actually ran. */
        gates_evaluated: number;
        /** Gates that could not run because their input was absent or malformed. */
        gates_skipped: number;
    };
}
export declare function validateArtifacts(artifactsDir: string, root?: string): Promise<ArtifactValidationResult>;
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