diff --git a/.gitignore b/.gitignore
index 3b1c87c7..7d84ef0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -105,3 +105,7 @@ _dat_run*.dat
 **/gnn_data/
 **/checkpoints/
 *.npz
+
+# Claude session temp files
+.claude-mcp-*.json
+.claude-prompt-*.md