diff --git a/phases/cpp-object-oriented-modular-refactoring/index.json b/phases/cpp-object-oriented-modular-refactoring/index.json
index 6324516..05a0e9b 100644
--- a/phases/cpp-object-oriented-modular-refactoring/index.json
+++ b/phases/cpp-object-oriented-modular-refactoring/index.json
@@ -13,7 +13,10 @@
     {
       "step": 1,
       "name": "cpp-style-tooling",
-      "status": "pending"
+      "status": "completed",
+      "summary": "RED: P-STYLE-001 failed on missing .clang-format/.clang-tidy/Doxyfile; GREEN/VERIFY: targeted pytest 1/1, clean-env full pytest 21/21, clang-format/clang-tidy 22.1.8 and tidy config validation, VS18 Debug build, and CTest 144/144 passed; added style/lint/Doxygen configs, optional non-default fesa_docs target, and ignored .harness/doxygen output.",
+      "started_at": "2026-08-16T03:10:54+0900",
+      "completed_at": "2026-08-16T03:19:17+0900"
     },
     {
       "step": 2,