diff --git a/.gitignore b/.gitignore
index 43b3b57..798c7cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,12 @@ snap
 /*.yaml
 *.txt
 dist/
+
+# Build artifacts
+.build/
+
+# Codegraph index (generated, multi-hundred-MB db)
+.codegraph/
+
+# Python cache
+__pycache__/