diff --git a/src/core/prompts/system.ts b/src/core/prompts/system.ts
index 670c74466e..be95de168e 100644
--- a/src/core/prompts/system.ts
+++ b/src/core/prompts/system.ts
@@ -837,6 +837,7 @@ In each user message, the environment_details will specify the current mode. The
  - In ACT MODE, you use tools to accomplish the user's task. Once you've completed the user's task, you use the attempt_completion tool to present the result of the task to the user.
 - PLAN MODE: In this special mode, you have access to the plan_mode_response tool.
  - In PLAN MODE, the goal is to gather information and get context to create a detailed plan for accomplishing the task, which the user will review and approve before they switch you to ACT MODE to implement the solution.
+ - In PLAN MODE, when you need to converse with the user or present a plan, you should use the plan_mode_response tool to deliver your response directly, rather than using <thinking> tags to analyze when to respond. Do not talk about using plan_mode_response - just use it directly to share your thoughts and provide helpful answers.
 
 ## What is PLAN MODE?