diff --git a/check-linuxcnc-workstreams-source-map.sh b/check-linuxcnc-workstreams-source-map.sh
new file mode 100755
index 0000000..026a5ab
--- /dev/null
+++ b/check-linuxcnc-workstreams-source-map.sh
@@ -0,0 +1,101 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+# LinuxCNC source basis: this guard ties the six active workstream contexts to
+# their source-map guards and to LinuxCNC source/config anchors. It validates
+# coordination policy only; it does not add CNC behavior or expand smoke
+# parsing.
+linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
+linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
+
+grep -F '1. `switchkins/remap` generator and tables' docs/architecture.md >/dev/null
+grep -F '2. `linuxcnc-kinematics` source manifest' docs/architecture.md >/dev/null
+grep -F '3. WASM filesystem and OPFS persistence' docs/architecture.md >/dev/null
+grep -F '4. browser app integration' docs/architecture.md >/dev/null
+grep -F '5. Node and browser smoke coverage' docs/architecture.md >/dev/null
+grep -F '6. source-link, build, and documentation constraints' docs/architecture.md >/dev/null
+
+grep -F 'REMAP = M428' "$linuxcnc_root/configs/sim/axis/vismach/5axis/bridgemill/5axis.ini" >/dev/null
+grep -F '#<kinstype>' "$linuxcnc_root/configs/sim/axis/vismach/5axis/bridgemill/remap_subs/428remap.ngc" >/dev/null
+grep -F 'GENSERKINSSRCS := emc/kinematics/ugenserkins.c' \
+    "$linuxcnc_root/src/emc/kinematics/Submakefile" >/dev/null
+grep -F 'extern int kinematicsInverse(const struct EmcPose * world,' \
+    "$linuxcnc_root/src/emc/kinematics/kinematics.h" >/dev/null
+grep -F '#define RS274NGC_PARAMETER_FILE_NAME_DEFAULT "rs274ngc.var"' \
+    "$linuxcnc_root/src/emc/rs274ngc/interp_internal.hh" >/dev/null
+grep -F 'int Interp::save_parameters(const char *filename,' \
+    "$linuxcnc_root/src/emc/rs274ngc/rs274ngc_pre.cc" >/dev/null
+grep -F 'LIBRS274SRCS := $(addprefix emc/rs274ngc/,' \
+    "$linuxcnc_root/src/emc/rs274ngc/Submakefile" >/dev/null
+grep -F 'LIBTOOLDATA_SRCS += emc/tooldata/tooldata_common.cc' \
+    "$linuxcnc_root/src/emc/tooldata/Submakefile" >/dev/null
+grep -F 'LIBLCNCINISRCS := emc/ini/inifile.cc' \
+    "$linuxcnc_root/src/emc/ini/Submakefile" >/dev/null
+grep -F 'LIBPPSRCS := $(addprefix emc/pythonplugin/,' \
+    "$linuxcnc_root/src/emc/pythonplugin/Submakefile" >/dev/null
+
+grep -F 'LinuxCNC workstreams source map' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'must not add CNC' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'temporary smoke parser' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'Every active workstream must have at least one source-map document and guard' \
+    docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'Browser filesystem persistence remains OPFS-only.' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'Smoke coverage remains verification only' docs/linuxcnc-workstreams-source-map.md >/dev/null
+
+python3 - <<'PY'
+from pathlib import Path
+
+doc = Path("docs/linuxcnc-workstreams-source-map.md").read_text(encoding="utf-8")
+expected = {
+    "switchkins/remap": [
+        "docs/linuxcnc-switchkins-remap-source-map.md",
+        "check-linuxcnc-switchkins-remap-source-map.sh",
+    ],
+    "linuxcnc-kinematics": [
+        "docs/linuxcnc-kinematics-source-map.md",
+        "check-linuxcnc-kinematics-source-map.sh",
+    ],
+    "WASM filesystem and OPFS persistence": [
+        "docs/linuxcnc-opfs-source-map.md",
+        "docs/linuxcnc-wasm-shims-source-map.md",
+        "docs/linuxcnc-wasm-blockers-source-map.md",
+        "check-linuxcnc-opfs-source-map.sh",
+        "check-linuxcnc-wasm-shims-source-map.sh",
+        "check-linuxcnc-wasm-blockers-source-map.sh",
+    ],
+    "browser app integration": [
+        "docs/linuxcnc-browser-app-source-map.md",
+        "check-linuxcnc-browser-app-source-map.sh",
+    ],
+    "Node and browser smoke coverage": [
+        "docs/linuxcnc-wasm-smoke-source-map.md",
+        "check-linuxcnc-wasm-smoke-source-map.sh",
+    ],
+    "source-link, build, and documentation constraints": [
+        "docs/linuxcnc-rs274-source-map.md",
+        "docs/linuxcnc-build-source-map.md",
+        "check-linuxcnc-rs274-source-map.sh",
+        "check-linuxcnc-build-source-map.sh",
+    ],
+}
+for workstream, paths in expected.items():
+    if workstream not in doc:
+        raise SystemExit(f"missing workstream row in docs/linuxcnc-workstreams-source-map.md: {workstream}")
+    for path in paths:
+        if path not in doc:
+            raise SystemExit(f"missing source-map path in workstream index: {path}")
+        if not Path(path).exists():
+            raise SystemExit(f"source-map path listed in workstream index does not exist: {path}")
+        if path.startswith("check-") and not Path(path).stat().st_mode & 0o111:
+            raise SystemExit(f"source-map guard is not executable: {path}")
+
+for test_entry in ["test-native.sh", "test-linuxcnc-source-link.sh"]:
+    text = Path(test_entry).read_text(encoding="utf-8")
+    for guard in sorted({path for paths in expected.values() for path in paths if path.startswith("check-")}):
+        if guard in {"check-linuxcnc-wasm-shims-source-map.sh", "check-linuxcnc-wasm-blockers-source-map.sh"}:
+            continue
+        if f"./{guard}" not in text:
+            raise SystemExit(f"{test_entry} does not run workstream source-map guard: {guard}")
+PY
diff --git a/docs/linuxcnc-workstreams-source-map.md b/docs/linuxcnc-workstreams-source-map.md
new file mode 100644
index 0000000..0512e99
--- /dev/null
+++ b/docs/linuxcnc-workstreams-source-map.md
@@ -0,0 +1,56 @@
+# LinuxCNC workstreams source map
+
+This map ties the six active workstream contexts to their source-map guards. It
+is a coordination guard only; it must not add CNC behavior and must not expand
+the temporary smoke parser.
+
+## Workstream Coverage
+
+| Workstream | Source-map documents | Guard scripts |
+| --- | --- | --- |
+| `switchkins/remap` generator and tables | `docs/linuxcnc-switchkins-remap-source-map.md` | `check-linuxcnc-switchkins-remap-source-map.sh` |
+| `linuxcnc-kinematics` source manifest | `docs/linuxcnc-kinematics-source-map.md` | `check-linuxcnc-kinematics-source-map.sh` |
+| WASM filesystem and OPFS persistence | `docs/linuxcnc-opfs-source-map.md`, `docs/linuxcnc-wasm-shims-source-map.md`, `docs/linuxcnc-wasm-blockers-source-map.md` | `check-linuxcnc-opfs-source-map.sh`, `check-linuxcnc-wasm-shims-source-map.sh`, `check-linuxcnc-wasm-blockers-source-map.sh` |
+| browser app integration | `docs/linuxcnc-browser-app-source-map.md` | `check-linuxcnc-browser-app-source-map.sh` |
+| Node and browser smoke coverage | `docs/linuxcnc-wasm-smoke-source-map.md` | `check-linuxcnc-wasm-smoke-source-map.sh` |
+| source-link, build, and documentation constraints | `docs/linuxcnc-rs274-source-map.md`, `docs/linuxcnc-build-source-map.md` | `check-linuxcnc-rs274-source-map.sh`, `check-linuxcnc-build-source-map.sh` |
+
+## LinuxCNC Source Basis
+
+- `configs/sim/**.ini` and `remap_subs/{428,429,430}remap.ngc` back the
+  switchkins/remap workstream.
+- `src/emc/kinematics/Submakefile` and `src/emc/kinematics/kinematics.h` back
+  the kinematics manifest workstream.
+- `src/emc/rs274ngc/interp_internal.hh` and
+  `src/emc/rs274ngc/rs274ngc_pre.cc` back the OPFS/browser parameter-file
+  workstreams.
+- `src/emc/rs274ngc/Submakefile`, `src/emc/tooldata/Submakefile`,
+  `src/emc/ini/Submakefile`, and `src/emc/pythonplugin/Submakefile` back the
+  source-link and build-policy workstream.
+
+## Boundaries
+
+- Every active workstream must have at least one source-map document and guard
+  script.
+- `test-native.sh` and `test-linuxcnc-source-link.sh` must run the workstream
+  source-map guard before consuming generated config aliases or source-linked
+  LinuxCNC objects.
+- WASM blocker and shim maps remain source coverage guards, not browser API
+  expansion points.
+- Browser filesystem persistence remains OPFS-only.
+- Smoke coverage remains verification only and must not become a functional CNC
+  behavior path.
+
+## Checks
+
+Run:
+
+```bash
+./check-linuxcnc-workstreams-source-map.sh
+./test-native.sh
+./test-linuxcnc-source-link.sh
+```
+
+`check-linuxcnc-workstreams-source-map.sh` keeps the six-workstream architecture
+list, source-map documents, guard scripts, LinuxCNC source anchors, and native /
+source-link guard entry points synchronized.
diff --git a/test-all-native.sh b/test-all-native.sh
index 9eec114..1611abf 100755
--- a/test-all-native.sh
+++ b/test-all-native.sh
@@ -159,6 +159,9 @@ grep -F './check-linuxcnc-build-source-map.sh' test-linuxcnc-source-link.sh >/de
 grep -F 'LinuxCNC source basis: this guard ties the browser app entry point' check-linuxcnc-browser-app-source-map.sh >/dev/null
 grep -F './check-linuxcnc-browser-app-source-map.sh' test-native.sh >/dev/null
 grep -F './check-linuxcnc-browser-app-source-map.sh' test-linuxcnc-source-link.sh >/dev/null
+grep -F 'LinuxCNC source basis: this guard ties the six active workstream contexts' check-linuxcnc-workstreams-source-map.sh >/dev/null
+grep -F './check-linuxcnc-workstreams-source-map.sh' test-native.sh >/dev/null
+grep -F './check-linuxcnc-workstreams-source-map.sh' test-linuxcnc-source-link.sh >/dev/null
 grep -F 'LinuxCNC source basis: this guard ties the documented WASM blocker map' check-linuxcnc-wasm-blockers-source-map.sh >/dev/null
 grep -F 'LinuxCNC source basis: this guard ties the documented wasm-safe shim map' check-linuxcnc-wasm-shims-source-map.sh >/dev/null
 grep -F 'LinuxCNC source basis: the cached input checker keys check-linuxcnc-inputs.sh' check-linuxcnc-inputs-cached.sh >/dev/null
@@ -248,6 +251,9 @@ grep -F '`build-wasm.sh` must configure with `CNC_SIM_ENABLE_SMOKE_BACKEND=OFF`'
 grep -F 'LinuxCNC browser app source map' docs/linuxcnc-browser-app-source-map.md >/dev/null
 grep -F 'The app must persist the current program at `programs/current.ngc`.' docs/linuxcnc-browser-app-source-map.md >/dev/null
 grep -F 'The visible backend selector must stay limited to the LinuxCNC RS274 backend.' docs/linuxcnc-browser-app-source-map.md >/dev/null
+grep -F 'LinuxCNC workstreams source map' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F '| `switchkins/remap` generator and tables | `docs/linuxcnc-switchkins-remap-source-map.md` |' docs/linuxcnc-workstreams-source-map.md >/dev/null
+grep -F 'Every active workstream must have at least one source-map document and guard' docs/linuxcnc-workstreams-source-map.md >/dev/null
 grep -F 'check-linuxcnc-switchkins-remap-table-cached.sh --cache-dir "$preflight_cache_dir" linuxcnc-kinematics-source-files.txt' test-native.sh >/dev/null
 grep -F 'check-linuxcnc-switchkins-remap-table-cached.sh --cache-dir "$preflight_cache_dir" linuxcnc-kinematics-source-files.txt' test-linuxcnc-source-link.sh >/dev/null
 grep -F 'check-linuxcnc-switchkins-remap-table-cached.sh --cache-dir "$preflight_cache_dir" linuxcnc-kinematics-source-files.txt' build-wasm.sh >/dev/null
diff --git a/test-linuxcnc-source-link.sh b/test-linuxcnc-source-link.sh
index 2708d78..2adb15f 100755
--- a/test-linuxcnc-source-link.sh
+++ b/test-linuxcnc-source-link.sh
@@ -36,10 +36,14 @@ fi
 preflight_cache_dir="$build_dir/preflight-cache"
 LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs-cached.sh --cache-dir "$preflight_cache_dir" "$manifest"
 
+./check-linuxcnc-rs274-source-map.sh
+./check-linuxcnc-kinematics-source-map.sh
+./check-linuxcnc-opfs-source-map.sh
 ./check-linuxcnc-switchkins-remap-source-map.sh
 ./check-linuxcnc-wasm-smoke-source-map.sh
 ./check-linuxcnc-build-source-map.sh
 ./check-linuxcnc-browser-app-source-map.sh
+./check-linuxcnc-workstreams-source-map.sh
 LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-switchkins-remap-table-cached.sh --cache-dir "$preflight_cache_dir" linuxcnc-kinematics-source-files.txt
 # The LinuxCNC source-linked dump path is not concurrency-safe under parallel execution.
 exec 9>"${TMPDIR:-/tmp}/cnc_sim_rs274_source_link.lock"
diff --git a/test-native.sh b/test-native.sh
index e8ea84f..98f8c83 100755
--- a/test-native.sh
+++ b/test-native.sh
@@ -41,6 +41,7 @@ preflight_cache_dir="$build_dir/preflight-cache"
 ./check-linuxcnc-wasm-smoke-source-map.sh
 ./check-linuxcnc-build-source-map.sh
 ./check-linuxcnc-browser-app-source-map.sh
+./check-linuxcnc-workstreams-source-map.sh
 ./check-linuxcnc-switchkins-remap-table-cached.sh --cache-dir "$preflight_cache_dir" linuxcnc-kinematics-source-files.txt
 grep -F 'tooldata:src/emc/tooldata/tooldata_nml.cc:NML tool table backend selected by LinuxCNC TOOL_NML_FLAG' linuxcnc-rs274-source-files.txt >/dev/null
 grep -F 'tooldata:src/emc/tooldata/tool_mmap_read.cc:LinuxCNC tooldata mmap reader utility source from tooldata Submakefile' linuxcnc-rs274-source-files.txt >/dev/null