diff --git a/tools/data/llms/llm-registry-sync.sh b/tools/data/llms/llm-registry-sync.sh
old mode 100644
new mode 100755
index 72573872a..5141423fe
--- a/tools/data/llms/llm-registry-sync.sh
+++ b/tools/data/llms/llm-registry-sync.sh
@@ -6,4 +6,7 @@ cd "$(dirname "$0")/../../.."
 
 # Run with npx tsx (will download on-demand if needed)
 # Uses npx cache, lightweight and no local install required
-exec npx -y tsx tools/data/llms/llm-registry-sync.ts "$@"
+npx -y tsx tools/data/llms/llm-registry-sync.ts "$@"
+
+# Then dump a fresh JSON snapshot next to the DB.
+exec npx -y tsx tools/data/llms/llm-registry-sync.ts --export-db tools/data/llms/llm-registry.json