diff --git a/README.md b/README.md
index 68e007f..d44da06 100644
--- a/README.md
+++ b/README.md
@@ -126,6 +126,9 @@ Open your favourite terminal and run:
 ```bash
 $ ./scripts/download.sh
 ```
+
+This will scrape markdown files for links to PDFs and download papers to their respective directories.
+
 See [README.md](./scripts/README.md) for more options.
 
 ## Contributing Guidelines
diff --git a/scripts/README.md b/scripts/README.md
index 639933f..d2d8d3e 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -5,6 +5,8 @@ Scripts for working with repository content.
 ## Download Utility
 A convenience script to download papers. This will scrape the README.md files for URLs containing links to pdfs and download them to their respective directories.
 
+The download utility is idempotent and can be run multiple times safely.
+
 ### Usage
 Open your favourite terminal and run: