diff --git a/AGENTS.md b/AGENTS.md
index ed624e5..1630c03 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -1,3 +1,5 @@
+<!-- standards-version: 1.6.3 -->
+
 # AGENTS.md
 
 Guidance for AI coding agents working on the Steam Cursor Plugin repository.
diff --git a/CLAUDE.md b/CLAUDE.md
index 5c31109..1a4f5cc 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,3 +1,5 @@
+<!-- standards-version: 1.6.3 -->
+
 # CLAUDE.md
 
 This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.