diff --git a/.gitignore b/.gitignore
index f52099f..670069a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,9 @@ data/
 # Brainstorming session files (visual companion)
 .superpowers/
 
+# Scratch / user temp
+tmp/
+
 # Python
 __pycache__/
 *.py[cod]