diff --git a/.gitignore b/.gitignore
index 8a7482ab8e..a92e504001 100644
--- a/.gitignore
+++ b/.gitignore
@@ -115,3 +115,9 @@ dev_environment.bat
 
 src/ifcopenshell-python/ifcopenshell/express/*.exp
 src/ifcopenshell-python/ifcopenshell/express/*.exp.cache.dat
+
+
+# temp files from AI coding tools
+*.claude
+*.py.tmp*
+*.json.tmp*