diff --git a/sandbox.json b/sandbox.json
new file mode 100644
index 000000000..4ae9ae147
--- /dev/null
+++ b/sandbox.json
@@ -0,0 +1,4 @@
+{
+  "provider": "local",
+  "working_directory": "/var/folders/nm/bd2dwzy52t1ckn3tklsfmy1c0000gn/T/.tmpk84F9y/fabro-data/runs/20260328-dry-run-01KMTNRSDE113156Y7Y1N0JT4A/worktree"
+}
\ No newline at end of file
diff --git a/start.json b/start.json
new file mode 100644
index 000000000..d1196cabc
--- /dev/null
+++ b/start.json
@@ -0,0 +1,6 @@
+{
+  "run_id": "01KMTNRSDE113156Y7Y1N0JT4A",
+  "start_time": "2026-03-28T16:52:22.009489Z",
+  "run_branch": "fabro/run/01KMTNRSDE113156Y7Y1N0JT4A",
+  "base_sha": "8fa85b2be1777cbe972c0781ad462f3f73b2546e"
+}
\ No newline at end of file