diff --git a/text7.txt b/text7.txt
index f790ac3..b58c1a1 100644
--- a/text7.txt
+++ b/text7.txt
@@ -1154,3 +1154,70 @@ filesystem/OPFS path guard，不改变 tool table、INI 或 session runtime sema
 ```bash
 git status --short && git log -5 --oneline && tail -n 120 text7.txt && awk '/^[一二三四五六七八九十百]+、/ {print}' text7.txt | sort | uniq -d
 ```
+
+二十一、2026-06-13 继续执行记录：browser OPFS tool-table staging guard
+
+1. 本批目标。
+
+继续 staged path guard inventory 第十六轮，处理 browser OPFS/session tool-table
+boundary path：
+
+```text
+/work/browser-tool.tbl
+/work/browser-random-tool.tbl
+/work/browser-custom-tool.tbl
+/work/browser-explicit-tool.tbl
+```
+
+2. 已完成改动。
+
+- browser 侧新增 `assertOpfsToolTableStaging(...)`；
+- 默认 machine session 的 load/save tool table 均检查 OPFS path 与 WASM path；
+- random toolchanger session 的 load/save tool table 均检查 OPFS path 与 WASM path；
+- INI `TOOL_TABLE` 命名 session 的 load/save tool table 均检查 OPFS path 与 WASM path；
+- explicit override session 的 load/save tool table 均检查 OPFS path 与 WASM path；
+- 复用 `generatedToolTablePath(...)` 校验 WASM staged path；
+- 未修改 OPFS 存储内容、tool table 内容、INI 解析、random toolchanger 行为或 session
+  runtime semantics。
+
+涉及文件：
+
+```text
+wasm-port/tests/browser/interp_smoke.html
+```
+
+3. 已完成的目标验证。
+
+```bash
+git diff --check
+SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_interp_browser.sh
+```
+
+4. 本批剩余建议验证。
+
+```bash
+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_interp_wasm.sh
+SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_sim_configs_inventory_wasm.sh
+wasm-port/tests/host/verify_host_smokes.sh
+```
+
+如果通过，提交建议：
+
+```text
+Guard browser OPFS tool-table staging
+```
+
+5. 下一步工作建议。
+
+继续 staged path guard inventory 第十七轮，优先处理 browser OPFS/session parameter
+path guard，例如 `/work/browser-linuxcnc.var`、`/work/browser-random-linuxcnc.var`、
+`/work/browser-custom.var`、`/work/browser-explicit.var`；仍只加 filesystem/OPFS path
+guard，不改变 parameter、INI 或 session runtime semantics。
+
+下一轮第一条命令仍保持：
+
+```bash
+git status --short && git log -5 --oneline && tail -n 120 text7.txt && awk '/^[一二三四五六七八九十百]+、/ {print}' text7.txt | sort | uniq -d
+```
diff --git a/wasm-port/tests/browser/interp_smoke.html b/wasm-port/tests/browser/interp_smoke.html
index e909b6b..fc63b88 100644
--- a/wasm-port/tests/browser/interp_smoke.html
+++ b/wasm-port/tests/browser/interp_smoke.html
@@ -4472,6 +4472,13 @@
       return checkedPath;
     }
 
+    function assertOpfsToolTableStaging(label, toolTable, expectedOpfsPath, expectedWasmPath) {
+      if (toolTable.opfsPath !== expectedOpfsPath) {
+        throw new Error(`${label}: unexpected tool table OPFS path ${toolTable.opfsPath}`);
+      }
+      generatedToolTablePath(toolTable.wasmPath, expectedWasmPath);
+    }
+
     async function loadSimMachineFiles(machineRel, iniFile, programFile = null) {
       const iniText = await fetchText(
         `../../vendor/linuxcnc/configs/sim/${machineRel}/${iniFile}`,
@@ -8977,6 +8984,12 @@
           toolTableWasmPath: "/work/browser-tool.tbl",
         },
       );
+      assertOpfsToolTableStaging(
+        "opfs_load_tool_table_staging",
+        loadedSession.toolTable,
+        "linuxcnc/machines/browser-interp/tool.tbl",
+        "/work/browser-tool.tbl",
+      );
       verifyExpectedOutput(
         "opfs_restore_parameters",
         loadedSession.parameters.result,
@@ -9061,6 +9074,12 @@
         "browser-interp",
         { wasmPath: "/work/browser-tool.tbl" },
       );
+      assertOpfsToolTableStaging(
+        "opfs_save_tool_table_staging",
+        savedToolTable,
+        "linuxcnc/machines/browser-interp/tool.tbl",
+        "/work/browser-tool.tbl",
+      );
       verifyExpectedOutput(
         "opfs_save_tool_table",
         savedToolTable.result,
@@ -9119,18 +9138,18 @@
           toolTableWasmPath: "/work/browser-random-tool.tbl",
         },
       );
+      assertOpfsToolTableStaging(
+        "opfs_load_random_tool_table_staging",
+        loadedRandomSession.toolTable,
+        "linuxcnc/machines/browser-random-toolchanger/tool.tbl",
+        "/work/browser-random-tool.tbl",
+      );
       if (
         loadedRandomSession.parameters.opfsPath !==
         "linuxcnc/machines/browser-random-toolchanger/linuxcnc.var"
       ) {
         throw new Error(`unexpected default parameter path: ${loadedRandomSession.parameters.opfsPath}`);
       }
-      if (
-        loadedRandomSession.toolTable.opfsPath !==
-        "linuxcnc/machines/browser-random-toolchanger/tool.tbl"
-      ) {
-        throw new Error(`unexpected default tool path: ${loadedRandomSession.toolTable.opfsPath}`);
-      }
       verifyExpectedOutput(
         "opfs_load_random_tool_table",
         loadedRandomSession.toolTable.result,
@@ -9155,6 +9174,12 @@
         "browser-random-toolchanger",
         { wasmPath: "/work/browser-random-tool.tbl" },
       );
+      assertOpfsToolTableStaging(
+        "opfs_save_random_tool_table_staging",
+        savedRandomToolTable,
+        "linuxcnc/machines/browser-random-toolchanger/tool.tbl",
+        "/work/browser-random-tool.tbl",
+      );
       verifyExpectedOutput(
         "opfs_save_random_tool_table",
         savedRandomToolTable.result,
@@ -9218,18 +9243,18 @@
           toolTableWasmPath: "/work/browser-custom-tool.tbl",
         },
       );
+      assertOpfsToolTableStaging(
+        "opfs_load_ini_named_tool_table_staging",
+        loadedIniFileSession.toolTable,
+        "linuxcnc/machines/browser-ini-file-session/browser-custom-tool.tbl",
+        "/work/browser-custom-tool.tbl",
+      );
       if (
         loadedIniFileSession.parameters.opfsPath !==
         "linuxcnc/machines/browser-ini-file-session/browser-custom.var"
       ) {
         throw new Error(`unexpected custom parameter path: ${loadedIniFileSession.parameters.opfsPath}`);
       }
-      if (
-        loadedIniFileSession.toolTable.opfsPath !==
-        "linuxcnc/machines/browser-ini-file-session/browser-custom-tool.tbl"
-      ) {
-        throw new Error(`unexpected custom tool path: ${loadedIniFileSession.toolTable.opfsPath}`);
-      }
       verifyExpectedOutput(
         "opfs_load_ini_named_parameter_file",
         loadedIniFileSession.parameters.result,
@@ -9319,6 +9344,12 @@
           wasmPath: loadedIniFileSession.toolTable.wasmPath,
         },
       );
+      assertOpfsToolTableStaging(
+        "opfs_save_ini_named_tool_table_staging",
+        savedIniNamedToolTable,
+        "linuxcnc/machines/browser-ini-file-session/browser-custom-tool.tbl",
+        "/work/browser-custom-tool.tbl",
+      );
       verifyExpectedOutput(
         "opfs_save_ini_named_tool_table",
         savedIniNamedToolTable.result,
@@ -9380,18 +9411,18 @@
           toolTableWasmPath: "/work/browser-explicit-tool.tbl",
         },
       );
+      assertOpfsToolTableStaging(
+        "opfs_load_explicit_tool_table_staging",
+        loadedIniOverrideSession.toolTable,
+        "linuxcnc/machines/browser-ini-override-session/browser-explicit-tool.tbl",
+        "/work/browser-explicit-tool.tbl",
+      );
       if (
         loadedIniOverrideSession.parameters.opfsPath !==
         "linuxcnc/machines/browser-ini-override-session/browser-explicit.var"
       ) {
         throw new Error(`unexpected explicit parameter path: ${loadedIniOverrideSession.parameters.opfsPath}`);
       }
-      if (
-        loadedIniOverrideSession.toolTable.opfsPath !==
-        "linuxcnc/machines/browser-ini-override-session/browser-explicit-tool.tbl"
-      ) {
-        throw new Error(`unexpected explicit tool path: ${loadedIniOverrideSession.toolTable.opfsPath}`);
-      }
       verifyExpectedOutput(
         "opfs_load_explicit_parameter_file",
         loadedIniOverrideSession.parameters.result,
@@ -9481,12 +9512,12 @@
           wasmPath: loadedIniOverrideSession.toolTable.wasmPath,
         },
       );
-      if (
-        savedExplicitToolTable.opfsPath !==
-        "linuxcnc/machines/browser-ini-override-session/browser-explicit-tool.tbl"
-      ) {
-        throw new Error(`unexpected explicit saved tool path: ${savedExplicitToolTable.opfsPath}`);
-      }
+      assertOpfsToolTableStaging(
+        "opfs_save_explicit_tool_table_staging",
+        savedExplicitToolTable,
+        "linuxcnc/machines/browser-ini-override-session/browser-explicit-tool.tbl",
+        "/work/browser-explicit-tool.tbl",
+      );
       verifyExpectedOutput(
         "opfs_save_explicit_tool_table",
         savedExplicitToolTable.result,