/**
 * Backfill LOOM lifecycle pipelines for existing active epics.
 *
 * Scans all epics whose `status` is not `done` or `cancelled` and initializes
 * the RCASD-IVTR lifecycle pipeline (research stage / in_progress) for any
 * that have not already been initialized.
 *
 * This is a one-shot migration helper for epics created before T1634 wired
 * LOOM auto-init into `cleo add --type epic`. Re-running on an already-
 * initialized epic is a no-op (idempotent via `initLoomForEpic`).
 *
 * @task T1634
 */
/** Result for a single epic during backfill. */
export interface BackfillEpicResult {
    /** Epic task ID. */
    epicId: string;
    /** Whether LOOM was freshly initialized during this run. */
    initialized: boolean;
    /** Whether LOOM was already initialized (no-op). */
    alreadyInitialized: boolean;
    /** Non-fatal error message, if initialization failed for this epic. */
    error?: string;
}
/** Aggregate result of the backfill operation. */
export interface BackfillLoomResult {
    /** Total number of active epics scanned. */
    total: number;
    /** Epics that had LOOM newly initialized. */
    initialized: number;
    /** Epics that were already initialized (skipped). */
    skipped: number;
    /** Epics that encountered an error during initialization. */
    errors: number;
    /** Per-epic breakdown. */
    results: BackfillEpicResult[];
}
/**
 * Backfill LOOM for all active epics in the project.
 *
 * Queries all epics where `status` is not `done` or `cancelled`, then calls
 * `initLoomForEpic` for each one. `initLoomForEpic` is idempotent — already-
 * initialized epics are skipped silently.
 *
 * @param projectRoot - Project root directory (where `.cleo/` lives).
 * @returns Aggregate backfill result with per-epic breakdown.
 *
 * @example
 * ```ts
 * const result = await backfillEpicLoom('/mnt/projects/myapp');
 * console.log(`Initialized ${result.initialized} / ${result.total} epics`);
 * ```
 */
export declare function backfillEpicLoom(projectRoot: string): Promise<BackfillLoomResult>;
//# sourceMappingURL=backfill-epic-loom.d.ts.map