diff --git a/app/core/qdrant.py b/app/core/qdrant.py
index d248c09..2bf7766 100644
--- a/app/core/qdrant.py
+++ b/app/core/qdrant.py
@@ -2,31 +2,37 @@
 # -*- coding: utf-8 -*-
 """
 Name:        app/core/qdrant.py
-Version:     v1.5.0 (2025-11-08)
+Version:     v1.6.0 (2025-11-08)
 
 Kurzbeschreibung:
   Qdrant-Client & Collection-Setup für mindnet.
   - Stellt sicher, dass {prefix}_notes / {prefix}_chunks / {prefix}_edges existieren.
   - Edges-Collection nutzt 1D Dummy-Vektor.
   - ensure_payload_indexes(...) legt sinnvolle Payload-Indizes an.
-  - **NEU (v1.5.0):** Abwärtskompatible Helfer:
-      * ensure_collections_for_prefix(...)  → Wrapper für legacy-Importer
-      * count_points(client, collection)    → stabile Zählfunktion (mit Fallback)
-      * get_counts_for_prefix(...)          → Summary über alle drei Collections
-      * truncate_collections(...)           → löscht *alle Punkte* in den Collections
+
+NEU / Änderungen:
+  v1.5.0:
+    * ensure_collections_for_prefix(...)  → Wrapper für legacy-Importer
+    * count_points(client, collection)    → stabile Zählfunktion (mit Fallback)
+    * get_counts_for_prefix(...)          → Summary über alle drei Collections
+    * truncate_collections(...)           → löscht *alle Punkte* in den Collections
+  v1.6.0:
+    * list_note_ids(client, notes_collection) → liefert alle payload.note_id-Werte
+      (wird von import_markdown.py v3.9.0 erwartet)
 
 Aufruf:
   from app.core.qdrant import (
       QdrantConfig, get_client,
       ensure_collections, ensure_payload_indexes,
       ensure_collections_for_prefix, count_points,
-      collection_names, get_counts_for_prefix, truncate_collections
+      collection_names, get_counts_for_prefix, truncate_collections,
+      list_note_ids,
   )
 """
 from __future__ import annotations
 import os
 from dataclasses import dataclass
-from typing import Optional, Tuple, Dict
+from typing import Optional, Tuple, Dict, List
 
 from qdrant_client import QdrantClient
 from qdrant_client.http import models as rest
@@ -66,6 +72,7 @@ def _create_notes(client: QdrantClient, name: str, dim: int) -> None:
             vectors_config=rest.VectorParams(size=dim, distance=rest.Distance.COSINE),
         )
 
+
 def _create_chunks(client: QdrantClient, name: str, dim: int) -> None:
     if not client.collection_exists(name):
         client.create_collection(
@@ -73,6 +80,7 @@ def _create_chunks(client: QdrantClient, name: str, dim: int) -> None:
             vectors_config=rest.VectorParams(size=dim, distance=rest.Distance.COSINE),
         )
 
+
 def _create_edges(client: QdrantClient, name: str) -> None:
     if not client.collection_exists(name):
         client.create_collection(
@@ -124,6 +132,7 @@ def _safe_create_index(client: QdrantClient, col: str, field: str, schema: rest.
         # bereits vorhanden oder nicht unterstütztes Schema → ignorieren
         pass
 
+
 def ensure_payload_indexes(client: QdrantClient, prefix: str) -> None:
     notes, chunks, edges = collection_names(prefix)
     # Notes
@@ -149,6 +158,7 @@ def ensure_collections_for_prefix(client: QdrantClient, prefix: str, dim: int, d
     ensure_payload_indexes(client, prefix)
     return collection_names(prefix)
 
+
 def count_points(client: QdrantClient, collection: str) -> int:
     """
     Zähle Punkte in einer Collection robust:
@@ -157,11 +167,9 @@ def count_points(client: QdrantClient, collection: str) -> int:
     """
     try:
         res = client.count(collection_name=collection, count_filter=None, exact=True)
-        # qdrant_client >=1.7: res.count
         cnt = getattr(res, "count", None)
         if isinstance(cnt, int):
             return cnt
-        # ältere Clients liefern evtl. ein Dict
         if isinstance(res, dict) and "count" in res:
             return int(res["count"])
     except Exception:
@@ -183,6 +191,7 @@ def count_points(client: QdrantClient, collection: str) -> int:
             break
     return total
 
+
 def get_counts_for_prefix(client: QdrantClient, prefix: str) -> Dict[str, int]:
     notes, chunks, edges = collection_names(prefix)
     return {
@@ -191,6 +200,7 @@ def get_counts_for_prefix(client: QdrantClient, prefix: str) -> Dict[str, int]:
         "edges": count_points(client, edges),
     }
 
+
 def truncate_collections(client: QdrantClient, prefix: str) -> None:
     """
     Löscht *alle Punkte* (nicht die Collections selber) für {prefix}.
@@ -208,3 +218,56 @@ def truncate_collections(client: QdrantClient, prefix: str) -> None:
         except Exception:
             # Fallback: Collection ggf. leer/nicht vorhanden → ignorieren
             pass
+
+
+# -------------------------------
+# NEU v1.6.0: list_note_ids
+# -------------------------------
+def list_note_ids(client: QdrantClient, notes_collection: str, limit: int = 100000) -> List[str]:
+    """
+    Liefert alle payload.note_id aus der angegebenen Notes-Collection.
+    - Wird von import_markdown.py (>= v3.9.0) verwendet, z.B. für Baseline-/Idempotenz-Checks.
+    - Robust gegen fehlende Felder: ignoriert Punkte ohne 'note_id'.
+
+    Args:
+        client: QdrantClient
+        notes_collection: Name der Notes-Collection (z.B. 'mindnet_notes')
+        limit: harte Obergrenze für die Anzahl der zurückzugebenden IDs
+
+    Returns:
+        Liste der note_id-Strings (ohne Duplikate, Reihenfolge nicht garantiert).
+    """
+    out: List[str] = []
+    seen = set()
+    next_page = None
+    fetched = 0
+
+    flt = None  # kein Filter → alle Punkte
+
+    while True:
+        # scroll_filter in neueren Clients; ältere akzeptieren 'scroll_filter' oder 'filter'
+        points, next_page = client.scroll(
+            collection_name=notes_collection,
+            scroll_filter=flt,
+            limit=min(512, max(1, limit - fetched)),
+            with_payload=True,
+            with_vectors=False,
+            offset=next_page,
+        )
+        if not points:
+            break
+
+        for p in points:
+            pl = p.payload or {}
+            nid = pl.get("note_id")
+            if isinstance(nid, str) and nid not in seen:
+                seen.add(nid)
+                out.append(nid)
+                fetched += 1
+                if fetched >= limit:
+                    return out
+
+        if next_page is None:
+            break
+
+    return out