diff --git a/scripts/graphiti_service.py b/scripts/graphiti_service.py
index 6154eaf..317cfc4 100644
--- a/scripts/graphiti_service.py
+++ b/scripts/graphiti_service.py
@@ -75,6 +75,17 @@ async def lifespan(app: FastAPI):
         max_coroutines=2,
     )
     await graphiti_instance.build_indices_and_constraints()
+    # Bridge driver._search_ops to driver.search_interface — graphiti-core 0.29.0
+    # builds FalkorSearchOperations as driver._search_ops in FalkorDriver.__init__
+    # but never assigns it to driver.search_interface. search_utils.py dispatches
+    # on driver.search_interface; without this assignment it falls back to
+    # interpreted-Cypher cosine math (full table scans). Together with the
+    # vendored patches in graphiti_patches/, this activates FalkorDB's native
+    # vector index for entity dedup similarity search.
+    if (hasattr(graphiti_instance.driver, "_search_ops")
+            and graphiti_instance.driver.search_interface is None):
+        graphiti_instance.driver.search_interface = graphiti_instance.driver._search_ops
+        log.info("Wired driver.search_interface = driver._search_ops (vector index path active)")
     log.info(f"Graphiti ready — provider: {LLM_PROVIDER}, group: {GROUP_ID}")
     yield
     await graphiti_instance.close()