diff --git a/app/core/derive_edges.py b/app/core/derive_edges.py
index 819dd8d..6a89950 100644
--- a/app/core/derive_edges.py
+++ b/app/core/derive_edges.py
@@ -5,12 +5,15 @@ Modul: app/core/derive_edges.py
 Zweck:
 - Bewahrt bestehende Edgelogik (belongs_to, prev/next, references, backlink)
 - Ergänzt typenbasierte Default-Kanten (edge_defaults aus config/types.yaml)
-- Unterstützt "typed inline relations" ([[rel:KIND | Target]] / [[rel:KIND Target]] / rel: KIND [[Target]])
-- Unterstützt Obsidian-Callouts (> [!edge] KIND: [[Target]] [[Target2]] ...)
-
+- Unterstützt "typed inline relations":
+    * [[rel:KIND | Target]]
+    * [[rel:KIND Target]]
+    * rel: KIND [[Target]]
+- Unterstützt Obsidian-Callouts:
+    * > [!edge] KIND: [[Target]] [[Target2]] ...
 Kompatibilität:
 - build_edges_for_note(...) Signatur unverändert
-- rule_id Werte exakt wie zuvor erwartet (ohne Versionssuffix):
+- rule_id Werte:
   * structure:belongs_to
   * structure:order
   * explicit:wikilink
@@ -37,7 +40,7 @@ except Exception:  # pragma: no cover
 
 def _get(d: dict, *keys, default=None):
     for k in keys:
-        if k in d and d[k] is not None:
+        if isinstance(d, dict) and k in d and d[k] is not None:
             return d[k]
     return default
 
@@ -135,11 +138,11 @@ def _edge_defaults_for(note_type: Optional[str], reg: dict) -> List[str]:
 _WIKILINK_RE = re.compile(r"\[\[(?:[^\|\]]+\|)?([a-zA-Z0-9_\-#:. ]+)\]\]")
 
 # Getypte Inline-Relationen:
-#   [[rel:depends_on | Target]]
-#   [[rel:related_to Target]]
+#   [[rel:KIND | Target]]
+#   [[rel:KIND Target]]
 _REL_PIPE  = re.compile(r"\[\[\s*rel:(?P<kind>[a-z_]+)\s*\|\s*(?P<target>[^\]]+?)\s*\]\]", re.IGNORECASE)
 _REL_SPACE = re.compile(r"\[\[\s*rel:(?P<kind>[a-z_]+)\s+(?P<target>[^\]]+?)\s*\]\]",   re.IGNORECASE)
-#   rel: depends_on [[Target]]   (reines Textmuster)
+#   rel: KIND [[Target]]   (reines Textmuster)
 _REL_TEXT  = re.compile(r"rel\s*:\s*(?P<kind>[a-z_]+)\s*\[\[\s*(?P<target>[^\]]+?)\s*\]\]", re.IGNORECASE)
 
 def _extract_typed_relations(text: str) -> Tuple[List[Tuple[str,str]], str]:
@@ -246,7 +249,7 @@ def build_edges_for_note(
     - belongs_to:   für jeden Chunk   (chunk -> note)
     - next / prev:  zwischen aufeinanderfolgenden Chunks
     - references:   pro Chunk aus window/text (via Wikilinks)
-    - typed inline relations: [[rel:KIND | Target]] oder [[rel:KIND Target]] oder rel: KIND [[Target]]
+    - typed inline relations: [[rel:KIND | Target]] / [[rel:KIND Target]] / rel: KIND [[Target]]
     - Obsidian Callouts: > [!edge] KIND: [[Target]] [[Target2]]
     - optional note-scope references/backlinks: dedupliziert über alle Chunk-Funde + note_level_references
     - typenbasierte Default-Kanten (edge_defaults) je gefundener Referenz
@@ -284,14 +287,14 @@ def build_edges_for_note(
             "provenance": "rule",
             "rule_id": "structure:order",
             "confidence": 0.95,
-        })))
+        }))
         edges.append(_edge("prev", "chunk", b_id, a_id, note_id, {
             "chunk_id": b_id,
             "edge_id": _mk_edge_id("prev", b_id, a_id, "chunk", "structure:order"),
             "provenance": "rule",
             "rule_id": "structure:order",
             "confidence": 0.95,
-        })))
+        }))
 
     # 3) references + typed inline + callouts + defaults (chunk-scope)
     reg = _load_types_registry()
@@ -366,7 +369,7 @@ def build_edges_for_note(
                     "chunk_id": cid,
                     "edge_id": _mk_edge_id(rel, cid, r, "chunk", f"edge_defaults:{note_type}:{rel}"),
                     "provenance": "rule",
-                    "rule_id": f"edge_defaults:{note_type}:{rel}"),
+                    "rule_id": f"edge_defaults:{note_type}:{rel}",
                     "confidence": 0.7,
                 }))
                 if rel in {"related_to", "similar_to"}:
@@ -374,7 +377,7 @@ def build_edges_for_note(
                         "chunk_id": cid,
                         "edge_id": _mk_edge_id(rel, r, cid, "chunk", f"edge_defaults:{note_type}:{rel}"),
                         "provenance": "rule",
-                        "rule_id": f"edge_defaults:{note_type}:{rel}"),
+                        "rule_id": f"edge_defaults:{note_type}:{rel}",
                         "confidence": 0.7,
                     }))