diff --git a/.gitignore b/.gitignore
index 52915e51..2dc1dca6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,6 @@ templates/webvirtcloud.code-workspace
 DEPENDENCY_UPGRADE_PLAN.md
 ROADMAP.md
 .agents
+
+# Runtime data (secret key, etc.)
+data/