diff --git a/check-linuxcnc-opfs-source-map.sh b/check-linuxcnc-opfs-source-map.sh
index 1f07c69..afbb1af 100755
--- a/check-linuxcnc-opfs-source-map.sh
+++ b/check-linuxcnc-opfs-source-map.sh
@@ -6,7 +6,7 @@ cd "$(dirname "$0")"
 # LinuxCNC source basis: this guard ties browser OPFS parameter persistence to
 # interp_internal.hh defaults and rs274ngc_pre.cc restore_parameters() /
 # save_parameters() file semantics. It validates bridge policy only; it does not
-# add CNC behavior or expand smoke parsing.
+# add CNC behavior, expand smoke parsing, or interpret G-code.
 linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
 linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
 
@@ -134,8 +134,19 @@ required_phrases = [
     "OPFS workspace and mount policy",
     "OPFS-backed workspace, directory, parameter-file, and mount/workspace option types",
     "app-level OPFS program, parameter, backup, and reload behavior",
+    "./check-linuxcnc-opfs-source-map.sh",
+    "does not interpret G-code",
 ]
 for phrase in required_phrases:
     if phrase not in source_map:
         raise SystemExit(f"docs/linuxcnc-opfs-source-map.md missing OPFS coverage phrase: {phrase}")
+
+for entry in [
+    "test-native.sh",
+    "test-linuxcnc-source-link.sh",
+    "build-wasm.sh",
+]:
+    text = Path(entry).read_text(encoding="utf-8")
+    if "./check-linuxcnc-opfs-source-map.sh" not in text:
+        raise SystemExit(f"{entry} must run ./check-linuxcnc-opfs-source-map.sh")
 PY
diff --git a/docs/linuxcnc-opfs-source-map.md b/docs/linuxcnc-opfs-source-map.md
index db1d858..bd961f8 100644
--- a/docs/linuxcnc-opfs-source-map.md
+++ b/docs/linuxcnc-opfs-source-map.md
@@ -47,6 +47,11 @@ persistence. It is a policy and bridge map only; it must not add independent fil
 - `web/src/app.js` must parse browser programs through
   `parseFileWithParameterFile()` so the program file and LinuxCNC parameter
   state both live under OPFS.
+- `test-native.sh`, `test-linuxcnc-source-link.sh`, and `build-wasm.sh` must
+  run `./check-linuxcnc-opfs-source-map.sh` before consuming app-backed browser
+  artifacts or source-linked LinuxCNC objects.
+- The OPFS source-map guard validates LinuxCNC source-backed filesystem bridge
+  policy only; it does not interpret G-code.
 
 ## Checks
 
@@ -56,6 +61,7 @@ Run:
 ./check-linuxcnc-opfs-source-map.sh
 ./test-native.sh
 ./test-linuxcnc-source-link.sh
+./build-wasm.sh
 ```
 
 `check-linuxcnc-opfs-source-map.sh` keeps this document, the LinuxCNC source