diff --git a/.gitignore b/.gitignore
index ab599b6e..426ef311 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,6 +23,10 @@ build/
 # sheets cannot return.
 /.codex-input/
 
+# SQLite runtime sidecars are process-local state, never repository content.
+*.db-wal
+*.db-shm
+
 # Large local data
 /artifacts/*
 !/artifacts/evidence/