diff --git a/External-plugins.md b/External-plugins.md
index 27c0780..871cf44 100644
--- a/External-plugins.md
+++ b/External-plugins.md
@@ -1,5 +1,8 @@
 ## A list of plugins that don't come bundled with oh-my-zsh
 
+There is no restriction for adding your plugin into zsh bundle (unlike [themes](https://github.com/robbyrussell/oh-my-zsh/wiki/External-themes)) but the rationale for creating this page is next:
+* sometimes you're not really sure if your plugin will not harm (e.g. it can break something).
+
 ### Installation
 It should be clear from [this](https://github.com/robbyrussell/oh-my-zsh/wiki/Customization#overriding-and-adding-plugins).