diff --git a/phases/nonlinear-static-newton-raphson/index.json b/phases/nonlinear-static-newton-raphson/index.json
index 77cc5c2..dc2b04f 100644
--- a/phases/nonlinear-static-newton-raphson/index.json
+++ b/phases/nonlinear-static-newton-raphson/index.json
@@ -77,7 +77,10 @@
     {
       "step": 9,
       "name": "nonlinear-hdf5-schema-v1-writer",
-      "status": "pending"
+      "status": "completed",
+      "summary": "Added atomic schema-v1 nonlinear HDF5 accepted-frame output with deterministic diagnostics and regression coverage.",
+      "started_at": "2026-08-24T14:52:08+0900",
+      "completed_at": "2026-08-24T15:19:06+0900"
     },
     {
       "step": 10,