diff --git a/scripts/import_markdown.py b/scripts/import_markdown.py
index 2959896..b1288df 100644
--- a/scripts/import_markdown.py
+++ b/scripts/import_markdown.py
@@ -243,6 +243,28 @@ def delete_note_everywhere(client, prefix: str, note_id: str) -> None:
             print(json.dumps({"note_id": note_id, "warn": f"delete in {col} failed: {e}"}))
 
 
+# --- Neu: Existenz-Checks für Artefakte (fehlertoleranter Rebuild) ---
+
+def _has_any_point(client, collection: str, note_id: str) -> bool:
+    """Prüft, ob es mind. einen Punkt mit note_id in der Collection gibt."""
+    filt = rest.Filter(must=[rest.FieldCondition(key="note_id", match=rest.MatchValue(value=note_id))])
+    pts, _ = client.scroll(
+        collection_name=collection,
+        scroll_filter=filt,
+        with_payload=False,
+        with_vectors=False,
+        limit=1,
+    )
+    return bool(pts)
+
+def artifacts_missing(client, prefix: str, note_id: str) -> Tuple[bool, bool]:
+    """Gibt (chunks_missing, edges_missing) zurück."""
+    _, chunks_col, edges_col = collections(prefix)
+    chunks_missing = not _has_any_point(client, chunks_col, note_id)
+    edges_missing = not _has_any_point(client, edges_col, note_id)
+    return chunks_missing, edges_missing
+
+
 # ---------------------------------------------------------------------
 # Main
 # ---------------------------------------------------------------------
@@ -425,7 +447,7 @@ def main() -> None:
         changed = args.force_replace or (not has_old) or hash_changed or text_changed
         do_baseline_only = (args.baseline_modes and has_old and needs_baseline and not changed)
 
-        # --- Chunks + Embeddings ---
+        # --- Chunks + Embeddings vorbereiten ---
         try:
             body_text = getattr(parsed, "body", "") or ""
             chunks = assemble_chunks(fm["id"], body_text, fm.get("type", "concept"))
@@ -454,10 +476,14 @@ def main() -> None:
             except Exception as e:
                 print(json.dumps({"path": path, "note_id": note_id, "warn": f"embed_texts failed, using zeros: {e}"}))
 
+        # --- Fehlende Artefakte in Qdrant ermitteln ---
+        chunks_missing, edges_missing = artifacts_missing(client, cfg.prefix, note_id)
+
         # --- Edges (robust) ---
         edges: List[Dict[str, Any]] = []
         edges_failed = False
-        if changed and (not do_baseline_only):
+        should_build_edges = (changed and (not do_baseline_only)) or edges_missing
+        if should_build_edges:
             try:
                 note_refs = note_pl.get("references") or []
                 edges = build_edges_for_note(
@@ -479,10 +505,12 @@ def main() -> None:
             "edges": len(edges),
             "edges_failed": edges_failed,
             "changed": changed,
+            "chunks_missing": chunks_missing,
+            "edges_missing": edges_missing,
             "needs_baseline_for_mode": needs_baseline,
             "decision": ("baseline-only" if args.apply and do_baseline_only else
-                         "apply" if args.apply and changed else
-                         "apply-skip-unchanged" if args.apply and not changed else
+                         "apply" if args.apply and (changed or chunks_missing or edges_missing) else
+                         "apply-skip-unchanged" if args.apply and not (changed or chunks_missing or edges_missing) else
                          "dry-run"),
             "path": note_pl["path"],
             "hash_mode": mode,
@@ -508,21 +536,29 @@ def main() -> None:
             upsert_batch(client, notes_name, note_pts)
             continue
 
-        if not changed:
+        # Wenn nichts geändert und keine Artefakte fehlen → nichts zu tun
+        if not changed and not (chunks_missing or edges_missing):
             continue
 
-        if args.purge_before_upsert and has_old:
+        # Purge nur bei echten Änderungen (unverändert + fehlende Artefakte ≠ Purge)
+        if args.purge_before_upsert and has_old and changed:
             try:
                 purge_note_artifacts(client, cfg.prefix, note_id)
             except Exception as e:
                 print(json.dumps({"path": path, "note_id": note_id, "warn": f"purge failed: {e}"}))
 
-        notes_name, note_pts = points_for_note(cfg.prefix, note_pl, None, cfg.dim)
-        upsert_batch(client, notes_name, note_pts)
-        if chunk_pls:
+        # Note nur bei Änderungen neu schreiben
+        if changed:
+            notes_name, note_pts = points_for_note(cfg.prefix, note_pl, None, cfg.dim)
+            upsert_batch(client, notes_name, note_pts)
+
+        # Chunks schreiben, wenn geändert ODER vorher fehlend
+        if chunk_pls and (changed or chunks_missing):
             chunks_name, chunk_pts = points_for_chunks(cfg.prefix, chunk_pls, vecs)
             upsert_batch(client, chunks_name, chunk_pts)
-        if edges:
+
+        # Edges schreiben, wenn vorhanden und (geändert ODER vorher fehlend)
+        if edges and (changed or edges_missing):
             edges_name, edge_pts = points_for_edges(cfg.prefix, edges)
             upsert_batch(client, edges_name, edge_pts)