diff --git a/app/core/edges.py b/app/core/edges.py
index 9009ee7..4359cea 100644
--- a/app/core/edges.py
+++ b/app/core/edges.py
@@ -1,45 +1,120 @@
-from __future__ import annotations
-from typing import List, Dict
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Modul: app/core/edges.py
+Version: 1.0.0
+Datum: 2025-09-09
 
-def deriv_edges_for_note(note_meta: Dict, chunk_payloads: List[Dict]) -> List[Dict]:
+Zweck
+-----
+Zentrale, konsistente Erzeugung von Edge-Payloads im **neuen Schema**:
+  - kind        : "belongs_to" | "next" | "prev" | "references" | "backlink"
+  - source_id   : ID des Quellknotens (Chunk- oder Note-ID)
+  - target_id   : ID des Zielknotens
+  - scope       : "chunk" | "note"
+  - note_id     : Owner-Note (für performantes Filtern/Löschen)
+  - seq         : optional (z. B. Reihenfolge von Vorkommen)
+
+Hinweise
+--------
+- Edges werden dedupliziert (key=(kind,source_id,target_id,scope)).
+- Für Chunk-Edges wird `note_id` aus dem Chunk-Payload entnommen.
+- Für Note-Scope-Edges ist `note_id` die Quell-Note-ID.
+"""
+
+from __future__ import annotations
+from typing import Dict, List
+
+def build_edges_for_note(
+    note_id: str,
+    chunk_payloads: List[Dict],
+    note_level_refs: List[str] | None,
+    *,
+    include_note_scope_refs: bool = False,
+) -> List[Dict]:
     edges: List[Dict] = []
 
-    # Chunk → Note (belongs_to) + prev/next
-    for idx, ch in enumerate(chunk_payloads):
+    # Chunk-Scope: belongs_to / prev / next / references
+    for ch in chunk_payloads:
+        cid = ch["id"]
+        owner = ch.get("note_id") or note_id
+        # belongs_to
         edges.append({
-            "src_id": ch["id"], "dst_id": note_meta["id"],
-            "edge_type": "belongs_to", "scope": "chunk"
+            "kind": "belongs_to",
+            "source_id": cid,
+            "target_id": note_id,
+            "scope": "chunk",
+            "note_id": owner,
         })
-        prev_id = ch.get("neighbors",{}).get("prev")
-        next_id = ch.get("neighbors",{}).get("next")
+        # Nachbarn
+        nb = ch.get("neighbors") or {}
+        prev_id = nb.get("prev")
+        next_id = nb.get("next")
         if prev_id:
-            edges.append({"src_id": ch["id"], "dst_id": prev_id, "edge_type": "next", "scope": "chunk"})
-            edges.append({"src_id": prev_id, "dst_id": ch["id"], "edge_type": "prev", "scope": "chunk"})
+            edges.append({
+                "kind": "prev",
+                "source_id": cid,
+                "target_id": prev_id,
+                "scope": "chunk",
+                "note_id": owner,
+            })
+            edges.append({
+                "kind": "next",
+                "source_id": prev_id,
+                "target_id": cid,
+                "scope": "chunk",
+                "note_id": owner,
+            })
         if next_id:
-            edges.append({"src_id": ch["id"], "dst_id": next_id, "edge_type": "next", "scope": "chunk"})
-            edges.append({"src_id": next_id, "dst_id": ch["id"], "edge_type": "prev", "scope": "chunk"})
-
-        # references aus wikilinks (Chunk-Scope)
-        for ref in ch.get("references", []):
+            edges.append({
+                "kind": "next",
+                "source_id": cid,
+                "target_id": next_id,
+                "scope": "chunk",
+                "note_id": owner,
+            })
+            edges.append({
+                "kind": "prev",
+                "source_id": next_id,
+                "target_id": cid,
+                "scope": "chunk",
+                "note_id": owner,
+            })
+        # references aus Chunk
+        for ref in (ch.get("references") or []):
             tid = ref.get("target_id")
-            if not tid: continue
-            edges.append({"src_id": ch["id"], "dst_id": tid, "edge_type": "references", "scope": "chunk"})
-            edges.append({"src_id": tid, "dst_id": ch["id"], "edge_type": "backlink", "scope": "chunk"})
+            if not tid:
+                continue
+            edges.append({
+                "kind": "references",
+                "source_id": cid,
+                "target_id": tid,
+                "scope": "chunk",
+                "note_id": owner,
+            })
 
-    # depends_on / assigned_to (Note-Scope, aus Frontmatter)
-    for dep in note_meta.get("depends_on", []) or []:
-        edges.append({"src_id": note_meta["id"], "dst_id": dep, "edge_type": "depends_on", "scope": "note"})
-    for ass in note_meta.get("assigned_to", []) or []:
-        edges.append({"src_id": note_meta["id"], "dst_id": ass, "edge_type": "assigned_to", "scope": "note"})
-
-    # Note-Level references (optional: falls du im Note-Payload `references` sammelst)
-    for tid in note_meta.get("references", []) or []:
-        edges.append({"src_id": note_meta["id"], "dst_id": tid, "edge_type": "references", "scope": "note"})
-        edges.append({"src_id": tid, "dst_id": note_meta["id"], "edge_type": "backlink", "scope": "note"})
+    # Note-Scope: backlink (immer); references (optional)
+    unique_refs = list(dict.fromkeys(note_level_refs or []))
+    for tid in unique_refs:
+        if include_note_scope_refs:
+            edges.append({
+                "kind": "references",
+                "source_id": note_id,
+                "target_id": tid,
+                "scope": "note",
+                "note_id": note_id,
+            })
+        edges.append({
+            "kind": "backlink",
+            "source_id": tid,
+            "target_id": note_id,
+            "scope": "note",
+            "note_id": note_id,
+        })
 
     # Dedupe
-    uniq = {}
+    dedup = {}
     for e in edges:
-        k = (e["src_id"], e["edge_type"], e["dst_id"], e.get("scope","note"))
-        uniq[k] = e
-    return list(uniq.values())
\ No newline at end of file
+        k = (e["kind"], e["source_id"], e["target_id"], e.get("scope", ""))
+        dedup[k] = e
+    return list(dedup.values())