diff --git a/api/routes/kb_public.py b/api/routes/kb_public.py
index 05829c6..f62ecbb 100644
--- a/api/routes/kb_public.py
+++ b/api/routes/kb_public.py
@@ -145,6 +145,17 @@ async def ask(body: AskRequest, request: Request):
         user_profile="",
         available_skills=list_skills(),
     )
+    # Pin the question to the insurance KB context so generic-law answers
+    # (e.g. "תקנה 37 לתקנות סדר הדין האזרחי") don't hijack the response.
+    system_prompt += (
+        "\n\nContext: The user is asking from the Knowledge Base UI of the "
+        "Israeli National Insurance firm. Every question should be answered "
+        "from the KB of חוק/תקנות/חוזרי הביטוח הלאומי. Before answering, "
+        "call search_insurance_kb to retrieve the relevant sections, and "
+        "cite them explicitly with section_ref (ס' N, תקנה N, or חוזר N/YYYY). "
+        "Never answer from generic legal training if the KB has a matching "
+        "section — if no KB section matches, say so explicitly."
+    )
 
     messages: list[dict] = []
     for m in (body.conversation_history or []):