diff --git a/text6.txt b/text6.txt
index c42fa57..f6771fa 100644
--- a/text6.txt
+++ b/text6.txt
@@ -847,3 +847,43 @@ wasm-port/tests/host/verify_host_smokes.sh
 `testsub.ngc`，下一步应先判断是否应扩展 file list；若不扩展，则需要专门记录
 “vendored extra fixture intentionally unstaged”的 guard。继续避免 blocked runtime
 promotion、browser full inventory 扩面和 JS CNC 语义实现。
+
+二十一、2026-06-13 继续执行记录：nested remaps oword unstaged fixture guard
+
+本批继续按“remap file-list staged path guard”推进，完成剩余
+`nested-remaps-oword` coverage 的 staged/unstaged 文件清单对账。
+
+完成内容：
+
+- Node 侧将 `nested-remaps-oword` inline remap file list 提成
+  `nestedRemapsOwordFiles` fixed manifest；
+- Node 侧新增 `expectedUnstagedFiles` 参数，用 upstream vendored `.ini/.ngc`
+  文件清单与 staged manifest 加 expected-unstaged manifest 精确对账；
+- Node 侧显式记录 `testsub.ngc` 为 vendored extra fixture、当前 smoke 不 staging；
+- Node 侧检查 expected-unstaged 文件不得与 staged manifest 重叠；
+- browser 侧新增同名 fixed manifest 与 expected-unstaged overlap guard；
+- browser 侧继续只校验 fixed staged path，不依赖目录枚举；
+- 仅校验文件清单与 staging 路径，不改变 remap 执行语义。
+
+已运行验证：
+
+```bash
+git diff --check
+SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_interp_wasm.sh
+SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_interp_browser.sh
+wasm-port/tools/verify_vendor_sync.sh
+wasm-port/tools/verify_no_standalone_cnc_semantics.sh
+SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_sim_configs_inventory_wasm.sh
+wasm-port/tests/host/verify_host_smokes.sh
+```
+
+结果：全部通过。
+
+下一步建议：
+
+remap file-list guard 的当前显性剩余项已基本收束。下一批建议回到
+`write*RegressionFiles(...)` helper 扫描，优先选择已有 Node/browser coverage、
+文件清单固定且不涉及 HAL/task/tool DB/Python remap/user-M process 的 2 到 3 个
+fixture；若没有合适小批次，转向补齐 staging guard 的文档索引或生成一个
+machine-readable fixture coverage manifest。继续避免 blocked runtime promotion、
+browser full inventory 扩面和 JS CNC 语义实现。
diff --git a/wasm-port/tests/browser/interp_smoke.html b/wasm-port/tests/browser/interp_smoke.html
index 33006a0..4921152 100644
--- a/wasm-port/tests/browser/interp_smoke.html
+++ b/wasm-port/tests/browser/interp_smoke.html
@@ -4647,10 +4647,13 @@
       return wasmDir;
     }
 
-    function assertRemapRegressionStaging(name, files, wasmDir) {
+    function assertRemapRegressionStaging(name, files, wasmDir, expectedUnstagedFiles = []) {
       if (files.length === 0 || new Set(files).size !== files.length) {
         throw new Error(`browser_remap_${name}_fixture_coverage: list drift`);
       }
+      if (expectedUnstagedFiles.some((file) => files.includes(file))) {
+        throw new Error(`browser_remap_${name}_unstaged_fixture_overlap: list drift`);
+      }
       const remapStagedRelativeFiles = files.map((file) => `${wasmDir}/${file}`.replace(`/work/browser-remap/${name}/`, ""));
       if (remapStagedRelativeFiles.join(",") !== files.join(",")) {
         throw new Error(`browser_remap_${name}_staging_manifest: list drift`);
@@ -6134,17 +6137,27 @@
         ].join("\n"),
       );
 
+      const nestedRemapsOwordFiles = [
+        "test.ini",
+        "test.ngc",
+        "rm400.ngc",
+        "rm401.ngc",
+        "rm402.ngc",
+        "rm403.ngc",
+      ];
+      const nestedRemapsOwordUnstagedFiles = [
+        "testsub.ngc",
+      ];
       const nestedRemapsOwordDir = await writeRemapRegressionFiles(
         interp,
         "nested-remaps-oword",
-        [
-          "test.ini",
-          "test.ngc",
-          "rm400.ngc",
-          "rm401.ngc",
-          "rm402.ngc",
-          "rm403.ngc",
-        ],
+        nestedRemapsOwordFiles,
+      );
+      assertRemapRegressionStaging(
+        "nested-remaps-oword",
+        nestedRemapsOwordFiles,
+        nestedRemapsOwordDir,
+        nestedRemapsOwordUnstagedFiles,
       );
       verifyExpectedOutput(
         "browser_nested_remaps_oword_remap",
diff --git a/wasm-port/tests/wasm/node/verify_interp_wasm.mjs b/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
index 3040132..03dd341 100644
--- a/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
+++ b/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
@@ -246,15 +246,20 @@ function writeRemapRegressionFiles(name, files) {
   return wasmDir;
 }
 
-function assertRemapRegressionStaging(name, files, wasmDir) {
+function assertRemapRegressionStaging(name, files, wasmDir, expectedUnstagedFiles = []) {
   const sourceDir = resolve(rootDir, "vendor/linuxcnc/tests/remap", name);
   assert.deepEqual(
     readdirSync(sourceDir)
       .filter((filename) => filename.endsWith(".ini") || filename.endsWith(".ngc"))
       .sort(),
-    [...files].sort(),
+    [...files, ...expectedUnstagedFiles].sort(),
     `remap ${name} fixture coverage drift`,
   );
+  assert.deepEqual(
+    files.filter((file) => expectedUnstagedFiles.includes(file)),
+    [],
+    `remap ${name} unstaged fixture overlap drift`,
+  );
   assert.deepEqual(
     files.map((file) => `${wasmDir}/${file}`),
     files.map((file) => `/work/remap/${name}/${file}`),
@@ -1110,14 +1115,27 @@ verifyExpectedOutput(
   ].join("\n"),
 );
 
-const nestedRemapsOwordDir = writeRemapRegressionFiles("nested-remaps-oword", [
+const nestedRemapsOwordFiles = [
   "test.ini",
   "test.ngc",
   "rm400.ngc",
   "rm401.ngc",
   "rm402.ngc",
   "rm403.ngc",
-]);
+];
+const nestedRemapsOwordUnstagedFiles = [
+  "testsub.ngc",
+];
+const nestedRemapsOwordDir = writeRemapRegressionFiles(
+  "nested-remaps-oword",
+  nestedRemapsOwordFiles,
+);
+assertRemapRegressionStaging(
+  "nested-remaps-oword",
+  nestedRemapsOwordFiles,
+  nestedRemapsOwordDir,
+  nestedRemapsOwordUnstagedFiles,
+);
 verifyExpectedOutput(
   "nested_remaps_oword_remap_wasm",
   interp.runRemapFile(