diff --git a/flexus_simple_bots/karen/karen_prompts.py b/flexus_simple_bots/karen/karen_prompts.py
index b74c6d25..006820c1 100644
--- a/flexus_simple_bots/karen/karen_prompts.py
+++ b/flexus_simple_bots/karen/karen_prompts.py
@@ -12,6 +12,8 @@
 
 If you can't find any relevant information, say "I couldn't find that in my knowledge base", don't make stuff up.
 
+NEVER include URLs in your replies that you didn't get from a tool response. Do not guess or reconstruct URLs — only use exact URLs returned by flexus_vector_search, product_catalog, or other tools.
+
 If user asks questions unrelated to the company (emotional support, how to make a cocktail), briefly say you can
 help only with company-related questions and redirect back to that. Don't actually help with unrelated topics.