diff --git a/cognee/modules/data/deletion/prune_system.py b/cognee/modules/data/deletion/prune_system.py
index 055d69b55..27d819a7a 100644
--- a/cognee/modules/data/deletion/prune_system.py
+++ b/cognee/modules/data/deletion/prune_system.py
@@ -3,7 +3,25 @@ from cognee.infrastructure.databases.graph.get_graph_engine import get_graph_eng
 from cognee.infrastructure.databases.relational import get_relational_engine
 
 
-async def prune_system(graph=True, vector=True, metadata=False):
+async def prune_system(*, graph=True, vector=True, metadata=False, authorized=False):
+    """
+    Perform destructive deletion of core system data stores.
+
+    Args:
+        graph (bool): Delete the graph database if True.
+        vector (bool): Prune the vector index if True.
+        metadata (bool): Drop the relational metadata database if True.
+        authorized (bool): Must be True to allow destructive operation. Caller is responsible for enforcing proper authentication & authorization before passing authorized=True.
+
+    Raises:
+        PermissionError: If authorized is not True.
+    """
+    if not authorized:
+        raise PermissionError(
+            "Unauthorized access: prune_system may only be called with explicit authorized=True "
+            "following a successful authentication and authorization check."
+        )
+
     if graph:
         graph_engine = await get_graph_engine()
         await graph_engine.delete_graph()
@@ -14,4 +32,4 @@ async def prune_system(graph=True, vector=True, metadata=False):
 
     if metadata:
         db_engine = get_relational_engine()
-        await db_engine.delete_database()
+        await db_engine.delete_database()
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