diff --git a/.gitignore b/.gitignore
index 65b06b9..229d53d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,3 +64,10 @@ target/
 
 # Ipython Notebook
 .ipynb_checkpoints
+
+# macOS
+.DS_Store
+
+# Claude Code (local-only state)
+.claude/settings.local.json
+.claude/worktrees/