diff --git a/.gitignore b/.gitignore
index b5ef945..d28d085 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,7 +3,10 @@ data/cases/
 data/training/
 data/exports/
 data/backups/
+data/precedent-library/
 data/.auto-sync.log
+data/*.db
+*.bak-pre-*
 mcp-server/.venv/
 __pycache__/
 *.pyc