diff --git a/phases/nonlinear-static-newton-raphson/index.json b/phases/nonlinear-static-newton-raphson/index.json
new file mode 100644
index 0000000..41abc68
--- /dev/null
+++ b/phases/nonlinear-static-newton-raphson/index.json
@@ -0,0 +1,75 @@
+{
+  "project": "FESA Structural Solver",
+  "phase": "nonlinear-static-newton-raphson",
+  "steps": [
+    {
+      "step": 0,
+      "name": "cli-output-lease-and-derived-names",
+      "status": "completed",
+      "summary": "Derived lexical sibling result/log paths, removed --output, and added an exclusive output lease with regression coverage.",
+      "started_at": "2026-08-24T01:41:01+0900",
+      "completed_at": "2026-08-24T10:42:14+0900"
+    },
+    {
+      "step": 1,
+      "name": "nonlinear-static-domain-contract",
+      "status": "pending"
+    },
+    {
+      "step": 2,
+      "name": "finite-rotation-state",
+      "status": "pending"
+    },
+    {
+      "step": 3,
+      "name": "nonlinear-mitc4-kinematics-and-recovery",
+      "status": "pending"
+    },
+    {
+      "step": 4,
+      "name": "nonlinear-mitc4-residual-and-tangent",
+      "status": "pending"
+    },
+    {
+      "step": 5,
+      "name": "load-boundary-path-and-convergence-gates",
+      "status": "pending"
+    },
+    {
+      "step": 6,
+      "name": "backend-neutral-tangent-solver",
+      "status": "pending"
+    },
+    {
+      "step": 7,
+      "name": "newton-iteration-log-writer",
+      "status": "pending"
+    },
+    {
+      "step": 8,
+      "name": "nonlinear-state-commit-rollback",
+      "status": "pending"
+    },
+    {
+      "step": 9,
+      "name": "nonlinear-hdf5-schema-v1-writer",
+      "status": "pending"
+    },
+    {
+      "step": 10,
+      "name": "prepared-analysis-flow-and-full-procedure",
+      "status": "pending"
+    },
+    {
+      "step": 11,
+      "name": "reference-comparison-gate",
+      "status": "pending"
+    },
+    {
+      "step": 12,
+      "name": "execution-closure-and-evidence-docs",
+      "status": "pending"
+    }
+  ],
+  "created_at": "2026-08-24T01:41:01+0900"
+}
\ No newline at end of file