diff --git a/PLAYWRITER_AGENTS.md b/PLAYWRITER_AGENTS.md
index 3c1e98c..399ff87 100644
--- a/PLAYWRITER_AGENTS.md
+++ b/PLAYWRITER_AGENTS.md
@@ -3,6 +3,7 @@ this codebase has the codebase for playwriter
 the extension uses chrome.debugger to manage the user browser
 
 read ./README.md for an overview of how this extension and mcp work
+read playwriter/src/prompt.md to understand how the MCP works
 
 ## architecture