diff --git a/.agentsignore b/.agentsignore
new file mode 100644
index 00000000000..0894751b8e5
--- /dev/null
+++ b/.agentsignore
@@ -0,0 +1,2 @@
+# Add all files of vendor dirs (To rename into .claudeignore or .vibeignore, ...)
+htdocs/includes/