diff --git a/src/hooks/keyword-detector/constants.ts b/src/hooks/keyword-detector/constants.ts
index 7e16941..855d400 100644
--- a/src/hooks/keyword-detector/constants.ts
+++ b/src/hooks/keyword-detector/constants.ts
@@ -222,6 +222,8 @@ export function getUltraworkMessage(agentName?: string): string {
 
   return `<ultrawork-mode>
 
+**MANDATORY**: You MUST say "ULTRAWORK MODE ENABLED!" to the user as your first response when this mode activates. This is non-negotiable.
+
 ${ULTRAWORK_TODO_SECTION}
 
 ${agentSection}