diff --git a/sandbox.json b/sandbox.json
new file mode 100644
index 000000000..238ca77ba
--- /dev/null
+++ b/sandbox.json
@@ -0,0 +1,4 @@
+{
+  "provider": "local",
+  "working_directory": "/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpgDjtQ4/fabro-data/runs/20260328-dry-run-01KMV9NT0AJKVJXK475BBVEV8C/worktree"
+}
\ No newline at end of file
diff --git a/start.json b/start.json
new file mode 100644
index 000000000..1fb5a859f
--- /dev/null
+++ b/start.json
@@ -0,0 +1,6 @@
+{
+  "run_id": "01KMV9NT0AJKVJXK475BBVEV8C",
+  "start_time": "2026-03-28T22:40:15.996863Z",
+  "run_branch": "fabro/run/01KMV9NT0AJKVJXK475BBVEV8C",
+  "base_sha": "51f18bbbc7f3c238a9d556d04279d59e70f58900"
+}
\ No newline at end of file