diff --git a/chain_state.json b/chain_state.json
new file mode 100644
index 00000000..1e803787
--- /dev/null
+++ b/chain_state.json
@@ -0,0 +1,8 @@
+{
+  "current_milestone_index": 0,
+  "current_plan_name": "sprint-0-spike-validate-store-20260503-0612",
+  "last_state": null,
+  "pr_number": 16,
+  "pr_state": "open",
+  "completed": []
+}