/**
 * True only for lines that are provably the archive loop's own summary
 * findings. Corrupt lines and anything not matching the full archiver
 * signature return false (when in doubt, exclude).
 */
export declare function isArchiverLoopJunk(line: string): boolean;
export interface ArchiveCompactionFileReport {
    /** Absolute path of the archive file. */
    file: string;
    /** Loop-junk entries found (preview) or dropped (execute). */
    junk_count: number;
    /** Lines preserved, including corrupt/unparseable ones. */
    survivor_count: number;
    /** Approximate bytes freed by dropping the junk lines. */
    bytes_reclaimable: number;
    /** Execute-mode only: file removed because no survivors remained. */
    deleted: boolean;
}
export interface ArchiveCompactionReport {
    files: ArchiveCompactionFileReport[];
    total_junk: number;
    total_survivors: number;
    total_bytes_reclaimable: number;
    files_deleted: number;
}
/** Human-readable byte count for summaries and audit posts. */
export declare function formatBytes(bytes: number): string;
/**
 * Scan (and optionally compact) every .jsonl file under {twiningDir}/archive.
 * Preview by default — pass execute: true to rewrite files. Execute mode
 * streams survivors to a temp file in the same directory and atomically
 * renames it over the original; files left with zero survivors are deleted.
 * Files containing no junk are never rewritten.
 */
export declare function compactArchives(twiningDir: string, options?: {
    execute?: boolean;
}): Promise<ArchiveCompactionReport>;
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