diff --git a/src/adapters/codex.mjs b/src/adapters/codex.mjs
index c5ea629..16b0f08 100644
--- a/src/adapters/codex.mjs
+++ b/src/adapters/codex.mjs
@@ -7,6 +7,7 @@ const codex = {
   defaultPort: 9335,
   lastVerified: {
     darwin: { appVersion: "26.707.72221", build: "5307", verifiedAt: "2026-07-16" },
+    win32: { appVersion: "26.727.6591", build: "535", verifiedAt: "2026-08-01" },
   },
   rendererProfiles: {
     [codexThemeV1Profile.id]: codexThemeV1Profile,
@@ -39,7 +40,9 @@ const codex = {
     // The root landmark is the only blocking check: it doubles as the
     // "app finished booting" signal and the minimal app fingerprint. Everything
     // else warns — the sidebar collapses, and CSS is inert on absent nodes.
-    rootAny: ["main.main-surface"],
+    // Keep fallbacks anchored to #root: bare main/[role="main"] selectors also
+    // match route content and auxiliary surfaces, so they are not app landmarks.
+    rootAny: ["main.main-surface", "#root main"],
     recommended: [
       { name: "sidebar", any: ["aside.app-shell-left-panel"] },
       { name: "composer", any: [".composer-surface-chrome"] },
diff --git a/tests/adapters.test.mjs b/tests/adapters.test.mjs
index 1017c12..add1f2c 100644
--- a/tests/adapters.test.mjs
+++ b/tests/adapters.test.mjs
@@ -30,7 +30,14 @@ test("Codex verification keeps only current cross-route landmarks", () => {
     build: "5307",
     verifiedAt: "2026-07-16",
   });
-  assert.deepEqual(adapter.verification.rootAny, ["main.main-surface"]);
+  assert.deepEqual(adapter.lastVerified.win32, {
+    appVersion: "26.727.6591",
+    build: "535",
+    verifiedAt: "2026-08-01",
+  });
+  assert.deepEqual(adapter.verification.rootAny, ["main.main-surface", "#root main"]);
+  assert.ok(!adapter.verification.rootAny.includes("main"));
+  assert.ok(!adapter.verification.rootAny.some((selector) => selector.includes('[role="main"]')));
   // Only the root landmark blocks: the sidebar collapses and other panels are
   // route-dependent, so every other landmark is warning-level.
   assert.equal(adapter.verification.required, undefined);