build: add no-device M1 acceptance checkpoint

README.md

@@ -41,11 +41,12 @@ screenshots, the closed-application preferences folder, machine photos, and
 operator notes directly from the actual control computer. The bundle and
 exported preferences are already preserved and analyzed.
 
-The offline M1 reuse proofs are progressing: the Rayforge/MeerK40t path now
+The offline M1 reuse proofs now pass as one consolidated acceptance checkpoint:
-has deterministic mock encoding, fail-closed JCZ profile and parameter gates,
+the Rayforge/MeerK40t path has deterministic mock encoding, fail-closed JCZ
-list buffering, cancellation/recovery, and a transport-free workflow preview.
+profile and parameter gates, list buffering, cancellation/recovery, layer and
-The remaining gates are a private known-working `.lbrn2` project and a reviewed
+recipe semantics, and a transport-free workflow preview. The remaining gates
-Windows GTK runtime for the packaged no-device workflow test. See the
+are a private known-working `.lbrn2` project and a reviewed Windows GTK runtime
+for the packaged no-device workflow test. See the
 [Phase 0 status](docs/status/phase-0.md) and
 [Rayforge GUI preflight](docs/research/rayforge-windows-gui-preflight.md).
 
@@ -74,10 +75,9 @@ hardware-free:
 
 1. collect known-working `.lbrn2` projects and the remaining screenshots,
    photos, preferences folder and operator notes;
-2. extend the synthetic import tests with the now-observed `QPulseWidth`
+2. obtain or produce a reviewed Windows Rayforge build artifact without
-   evidence, without assuming its `.lbrn2` representation;
+   installing a toolchain through this repository;
-3. define the minimum Rayforge JCZ device-profile/import extension and finish
+3. run and record the packaged no-device desktop interaction checklist;
-   controller-list buffering and safe state ordering offline;
 4. accept, revise, or reject the proposed reuse architecture from evidence;
 5. write and review a separate hardware protocol before any live controller
    communication.
@@ -103,6 +103,7 @@ project workspace or development destination.
 - [LightBurn-to-Rayforge UX capability map](docs/research/lightburn-rayforge-ux-capability-map.md)
 - [Rayforge layer visibility and output spike](docs/research/rayforge-layer-model-spike.md)
 - [Rayforge material-recipe model spike](docs/research/rayforge-recipe-model-spike.md)
+- [M1 no-device build and acceptance checkpoint](docs/research/m1-no-device-acceptance.md)
 - [Proposed Rayforge/BalorMK reuse decision](docs/adr/0002-reuse-rayforge-and-balormk.md)
 - [Live USB enumeration](docs/research/live-usb-enumeration-2026-10-17.md)
 - [LightBurn device-export analysis](docs/research/lightburn-device-exports-2026-10-19.md)

docs/adr/0002-reuse-rayforge-and-balormk.md

@@ -118,8 +118,13 @@ Subsequent offline evidence:
   canvas visibility and job participation are already independent serialized
   states; LightBurn-style layer Output is a narrow aggregate UI concern, not a
   new pipeline or document-model requirement.
+- [M1 no-device acceptance checkpoint](../research/m1-no-device-acceptance.md):
+  the public regression suite and leak guard now form one transport-free gate
+  over addon lifecycle, workflow, layers, recipes, encoding, negative cases,
+  cancellation/recovery and synthetic imports. The packaged Windows GUI and a
+  known-working private project remain external gates.
 
-These results support continuing toward complete list buffering and production
+These results satisfy the current model, buffering and no-device integration
-integration, but they do not yet satisfy every proof obligation or change this
+proofs. They do not yet satisfy the packaged human-interaction or real-project
-ADR's proposed status.
+import obligations, so this ADR remains proposed.
 

docs/research/m1-no-device-acceptance.md

@@ -0,0 +1,91 @@
+# M1 no-device build and acceptance checkpoint
+
+- Date: 2026-10-20
+- Rayforge commit: `c28918c87f8273dd1d244f5a057addc192807fa5`
+- Scope: packaged Windows desktop and consolidated offline acceptance
+- Hardware access: prohibited
+
+## Goal
+
+Close the remaining software-controlled part of M1 with one reproducible
+checkpoint rather than treating isolated spikes as a finished desktop flow.
+The checkpoint has two outputs:
+
+1. a pinned Windows Rayforge bundle containing the external PirateRay
+   no-device addon;
+2. one machine-readable acceptance report covering all current transport-free
+   evidence.
+
+Neither output authorizes USB discovery, controller commands, galvo movement,
+physical framing, arming or laser output.
+
+## On-demand build
+
+Run the build only when a Windows artifact is required:
+
+```powershell
+scripts/build_rayforge_windows_checkpoint.ps1
+```
+
+The script fetches the exact revision from `upstreams/rayforge.json`, stages
+the no-device addon into the ignored build checkout, invokes Rayforge's
+upstream MSYS2 build and creates a portable ZIP plus installer hashes under
+`.build/artifacts/`. Normal clone, documentation and test workflows do not
+download or install the build stack.
+
+The checkpoint script never installs the Windows toolchain. If the reviewed
+runtime is unavailable, it stops and reports the missing prerequisite. Any
+toolchain preparation remains a separate, explicitly invoked upstream action
+or should happen on a dedicated build runner.
+
+Before staging, the script rejects transport imports in the addon. The build
+manifest records the exact upstream commit and hashes every addon source file,
+the portable archive and installer. It does not claim the GUI has been tested.
+
+## Automated acceptance
+
+Run with the isolated Rayforge Python environment:
+
+```powershell
+python scripts/run_m1_no_device_acceptance.py <rayforge-checkout> `
+  --output .build/artifacts/m1-no-device-acceptance.json
+```
+
+The runner executes the complete repository test suite and public-repository
+guard, then collects and hashes the regression-verified golden reports for the
+addon lifecycle, graphical workflow model, layer model, recipe model, JCZ
+equivalence, negative cases, cancellation/recovery and both LightBurn import
+spikes. It passes only when the repository checks pass, transport remains
+absent, the controller backend remains unreachable, negative cases fail
+closed, cancellation requires recovery and incomplete LightBurn import still
+blocks encoding.
+
+## Manual packaged-app checklist
+
+Use only the isolated no-device profile and an empty work area. Do not connect
+or configure a controller.
+
+1. Verify the artifact and addon hashes against the build manifest.
+2. Launch the portable build with a fresh application-data directory.
+3. Confirm the UI identifies the state as offline/no-device.
+4. Open synthetic geometry and inspect the 110 × 110 mm synthetic field.
+5. Name, color, select and reorder layers.
+6. Verify canvas visibility and output participation are independent.
+7. Edit power, speed, frequency and pulse width and confirm Hz/ns labels.
+8. Apply the synthetic unverified recipe; confirm mismatched compatibility is
+   blocked and no approved label appears.
+9. Preview enabled geometry, ordering, hatch and out-of-field diagnostics.
+10. Save and reopen; confirm geometry, order and supported settings survive.
+11. Start simulation, hold, resume, cancel and explicitly recover.
+12. Exit and preserve only the sanitized acceptance report and screenshots.
+
+Any device discovery prompt, physical-device status, transport attempt or
+unlabelled framing action is a stop condition and fails the checkpoint.
+
+## Remaining external gates
+
+- A known-working private `.lbrn2` is still required before implementing
+  project-level `QPulseWidth` mapping.
+- Human interaction results from the packaged build must be recorded before
+  ADR 0002 can be accepted.
+- Physical controller behavior remains outside M1.

docs/research/rayforge-windows-gui-preflight.md

@@ -45,10 +45,11 @@ revision into the ignored `.build/upstreams/` cache only when explicitly
 invoked. Its default action prepares source only; it neither installs the
 Windows toolchain nor starts a build.
 
-Windows dependencies and bundle creation require separate
+The repository scripts do not install Windows dependencies. Bundle creation
-`-InstallWindowsDependencies` and `-BuildWindowsBundle` switches. This keeps a
+requires the explicit `-BuildWindowsBundle` switch and an already reviewed,
-multi-gigabyte MSYS2/UCRT64 toolchain out of normal clone, test and documentation
+prepared runtime. This keeps a multi-gigabyte MSYS2/UCRT64 toolchain out of
-workflows and makes a CI-produced bundle the preferred interaction-test input.
+normal clone, test and documentation workflows and makes a CI-produced bundle
+the preferred interaction-test input.
 
 ## Next action
 

docs/roadmap.md

@@ -316,6 +316,12 @@ has no MSYS2/UCRT64 Rayforge runtime. No dependencies were installed and no
 GUI success is claimed. The packaged interaction test therefore remains
 blocked on a reviewed Windows GTK runtime, not on controller behavior.
 
+The transport-free portions are now consolidated by the
+[M1 no-device acceptance checkpoint](research/m1-no-device-acceptance.md).
+It reruns the public suite and leak guard and hashes the validated regression
+reports. The on-demand build entry point fetches pinned source and stages the
+addon but deliberately refuses to install a missing Windows toolchain.
+
 ## Decision rules
 
 - A simulator test precedes every equivalent hardware behavior.

docs/status/phase-0.md

@@ -1,6 +1,6 @@
 # Phase 0 status
 
-Last updated: 2026-10-19
+Last updated: 2026-10-20
 
 ## Completed
 
@@ -72,13 +72,19 @@ evidence for:
 - fail-closed profile and encoder negative cases;
 - Rayforge workflow-model serialization and preview behavior for power,
   frequency and pulse width.
+- independent layer visibility/output state and ordered serialization;
+- material-recipe matching plus a fail-closed PirateRay provenance and exact
+  machine/source/lens/correction compatibility gate;
+- one consolidated no-device acceptance report that reruns all 69 public
+  tests and the leak guard, then hashes the regression evidence.
 
 The remaining M1 gates are deliberately explicit:
 
 - a private known-working `.lbrn2` project is still required before mapping
   project-level `QPulseWidth` into workflow settings;
 - packaged Windows/GTK interaction is blocked until a reviewed Rayforge
-  runtime with PyGObject and MSYS2/UCRT64 is available;
+  runtime with PyGObject and MSYS2/UCRT64 is available; the repository build
+  entry point fetches pinned source but never installs that runtime;
 - graphical workflow, import, lens correction and controller protocol
   behavior remain unproven at the physical boundary;
 - ADR 0002 remains **Proposed** until those gaps are resolved or rejected by

scripts/build_rayforge_windows_checkpoint.ps1

@@ -0,0 +1,111 @@
+[CmdletBinding(SupportsShouldProcess)]
+param(
+    [string]$CacheRoot,
+    [string]$ArtifactRoot
+)
+
+$ErrorActionPreference = "Stop"
+
+$repositoryRoot = Split-Path -Parent $PSScriptRoot
+$upstreamManifest = Get-Content -Raw -LiteralPath (
+    Join-Path $repositoryRoot "upstreams\rayforge.json"
+) | ConvertFrom-Json
+$shortCommit = $upstreamManifest.commit.Substring(0, 12)
+
+if (-not $CacheRoot) {
+    $CacheRoot = Join-Path $repositoryRoot ".build\upstreams"
+}
+if (-not $ArtifactRoot) {
+    $ArtifactRoot = Join-Path $repositoryRoot ".build\artifacts"
+}
+
+& (Join-Path $PSScriptRoot "prepare_rayforge_build.ps1") `
+    -CacheRoot $CacheRoot
+if ($LASTEXITCODE -ne 0) {
+    throw "Pinned Rayforge source preparation failed"
+}
+
+$checkout = Join-Path $CacheRoot "rayforge-$shortCommit"
+$verifiedCommit = (& git -C $checkout rev-parse HEAD).Trim()
+if ($verifiedCommit -ne $upstreamManifest.commit) {
+    throw "Rayforge pin mismatch before packaging"
+}
+
+$addonSource = Join-Path $repositoryRoot (
+    "spikes\rayforge-jcz-no-device-addon"
+)
+$addonText = Get-ChildItem -LiteralPath $addonSource -Recurse -File |
+    Where-Object { $_.Extension -eq ".py" } |
+    ForEach-Object { Get-Content -Raw -LiteralPath $_.FullName }
+$forbidden = @("import usb", "import serial", "import socket", "pyusb")
+foreach ($needle in $forbidden) {
+    if (($addonText -join "`n").ToLowerInvariant().Contains($needle)) {
+        throw "No-device addon contains forbidden transport token: $needle"
+    }
+}
+
+$addonDestination = Join-Path $checkout (
+    "rayforge\builtin_addons\rayforge-addon-the-pirate-ray-jcz"
+)
+if ($PSCmdlet.ShouldProcess($addonDestination, "Stage no-device addon")) {
+    New-Item -ItemType Directory -Force -Path $addonDestination | Out-Null
+    Copy-Item -Path (Join-Path $addonSource "*") `
+        -Destination $addonDestination -Recurse -Force
+}
+
+$prepareArguments = @{
+    CacheRoot = $CacheRoot
+    BuildWindowsBundle = $true
+}
+& (Join-Path $PSScriptRoot "prepare_rayforge_build.ps1") @prepareArguments
+if ($LASTEXITCODE -ne 0) {
+    throw "Pinned Rayforge Windows bundle build failed"
+}
+
+$bundleName = "rayforge-vpirateray-$shortCommit"
+$bundleDirectory = Join-Path $checkout "dist\$bundleName"
+$application = Join-Path $bundleDirectory "$bundleName.exe"
+$installer = Join-Path $checkout "dist\$bundleName-installer.exe"
+if (-not (Test-Path -LiteralPath $application)) {
+    throw "Expected packaged application was not produced: $application"
+}
+if (-not (Test-Path -LiteralPath $installer)) {
+    throw "Expected installer was not produced: $installer"
+}
+
+New-Item -ItemType Directory -Force -Path $ArtifactRoot | Out-Null
+$archive = Join-Path $ArtifactRoot "$bundleName.zip"
+if ($PSCmdlet.ShouldProcess($archive, "Create portable checkpoint archive")) {
+    Compress-Archive -LiteralPath $bundleDirectory -DestinationPath $archive -Force
+}
+
+$addonFiles = Get-ChildItem -LiteralPath $addonSource -Recurse -File |
+    Sort-Object FullName |
+    ForEach-Object {
+        [ordered]@{
+            path = $_.FullName.Substring($addonSource.Length + 1).Replace("\", "/")
+            sha256 = (Get-FileHash -Algorithm SHA256 -LiteralPath $_.FullName).Hash.ToLowerInvariant()
+        }
+    }
+$result = [ordered]@{
+    checkpoint = "Rayforge Windows no-device bundle"
+    rayforge_commit = $verifiedCommit
+    addon = "the_pirate_ray_jcz"
+    addon_source_files = $addonFiles
+    hardware_access = $false
+    transport = $null
+    bundle = [ordered]@{
+        path = $archive
+        sha256 = (Get-FileHash -Algorithm SHA256 -LiteralPath $archive).Hash.ToLowerInvariant()
+        bytes = (Get-Item -LiteralPath $archive).Length
+    }
+    installer = [ordered]@{
+        path = $installer
+        sha256 = (Get-FileHash -Algorithm SHA256 -LiteralPath $installer).Hash.ToLowerInvariant()
+        bytes = (Get-Item -LiteralPath $installer).Length
+    }
+    manual_interaction_required = $true
+}
+$manifestPath = Join-Path $ArtifactRoot "rayforge-windows-checkpoint.json"
+$result | ConvertTo-Json -Depth 8 | Set-Content -LiteralPath $manifestPath -Encoding utf8
+Write-Output "Checkpoint manifest: $manifestPath"

scripts/prepare_rayforge_build.ps1

@@ -1,7 +1,6 @@
 [CmdletBinding(SupportsShouldProcess)]
 param(
     [string]$CacheRoot,
-    [switch]$InstallWindowsDependencies,
     [switch]$BuildWindowsBundle
 )
 
@@ -58,7 +57,7 @@ if ($verifiedCommit -ne $manifest.commit) {
 Write-Output "Rayforge source ready at $checkout"
 Write-Output "Verified commit: $verifiedCommit"
 
-if (-not $InstallWindowsDependencies -and -not $BuildWindowsBundle) {
+if (-not $BuildWindowsBundle) {
     Write-Output "No dependencies were installed and no build was started."
     return
 }
@@ -70,19 +69,10 @@ if (-not (Test-Path -LiteralPath $bash)) {
 
 $msysCheckout = (& $bash -lc "cygpath -u '$checkout'").Trim()
 
-if ($InstallWindowsDependencies) {
-    if ($PSCmdlet.ShouldProcess("C:\msys64", "Install Rayforge Windows build dependencies")) {
-        & $bash -lc "cd '$msysCheckout' && bash scripts/win/win_setup.sh"
-        if ($LASTEXITCODE -ne 0) {
-            throw "Rayforge Windows dependency setup failed with exit code $LASTEXITCODE"
-        }
-    }
-}
-
 if ($BuildWindowsBundle) {
     $environmentFile = Join-Path $checkout ".msys2_env"
     if (-not (Test-Path -LiteralPath $environmentFile)) {
-        throw "Windows dependencies are not prepared. Re-run with -InstallWindowsDependencies."
+        throw "A reviewed Rayforge Windows build runtime is not prepared. No dependencies were installed."
     }
 
     if ($PSCmdlet.ShouldProcess($checkout, "Build pinned Rayforge Windows bundle")) {

scripts/run_m1_no_device_acceptance.py

@@ -0,0 +1,156 @@
+"""Consolidate the transport-free M1 regression evidence."""
+
+from __future__ import annotations
+
+import argparse
+import hashlib
+import json
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+PINNED_COMMIT = "c28918c87f8273dd1d244f5a057addc192807fa5"
+
+EVIDENCE = {
+    "addon_lifecycle": "rayforge-addon-spike.json",
+    "graphical_workflow_model": "rayforge-graphical-workflow.json",
+    "layer_model": "rayforge-layer-model.json",
+    "recipe_model": "rayforge-recipe-model.json",
+    "jcz_equivalence": "rayforge-jcz-equivalence.json",
+    "jcz_negative_cases": "rayforge-jcz-negative-cases.json",
+    "cancel_recovery": "rayforge-jcz-cancel-recovery.json",
+    "lightburn_mopa_import": "rayforge-lightburn-mopa-import.json",
+    "lightburn_device_import": "rayforge-lightburn-device-import.json",
+}
+
+
+def _commit_of(source: Path) -> str:
+    result = subprocess.run(
+        ["git", "-C", str(source), "rev-parse", "HEAD"],
+        check=True,
+        capture_output=True,
+        text=True,
+    )
+    return result.stdout.strip()
+
+
+def _run_check(command: list[str], environment: dict[str, str]) -> dict:
+    result = subprocess.run(
+        command,
+        cwd=ROOT,
+        check=False,
+        capture_output=True,
+        text=True,
+        timeout=120,
+        env=environment,
+    )
+    combined = (result.stdout + result.stderr).strip()
+    if result.returncode != 0:
+        raise RuntimeError(combined or f"check failed: {command}")
+    return {
+        "status": "passed",
+        "command": command,
+        "output_tail": combined.splitlines()[-4:],
+    }
+
+
+def _load_evidence() -> dict[str, dict]:
+    fixture_dir = ROOT / "tests" / "fixtures"
+    results = {}
+    for name, filename in EVIDENCE.items():
+        path = fixture_dir / filename
+        results[name] = {
+            "path": path.relative_to(ROOT).as_posix(),
+            "sha256": hashlib.sha256(path.read_bytes()).hexdigest(),
+            "report": json.loads(path.read_text(encoding="utf-8")),
+        }
+    return results
+
+
+def run(source: Path) -> dict:
+    commit = _commit_of(source)
+    if commit != PINNED_COMMIT:
+        raise RuntimeError(f"expected Rayforge {PINNED_COMMIT}, found {commit}")
+
+    temp_dir = ROOT / ".build" / "acceptance-temp"
+    temp_dir.mkdir(parents=True, exist_ok=True)
+    environment = os.environ.copy()
+    environment["TEMP"] = str(temp_dir)
+    environment["TMP"] = str(temp_dir)
+
+    repository_checks = {
+        "unit_tests": _run_check(
+            [sys.executable, "-m", "unittest", "discover", "-s", "tests"],
+            environment,
+        ),
+        "public_repo_guard": _run_check(
+            [sys.executable, "scripts/check_public_repo.py", "."],
+            environment,
+        ),
+    }
+    evidence = _load_evidence()
+
+    graphical = evidence["graphical_workflow_model"]["report"]
+    negative = evidence["jcz_negative_cases"]["report"]
+    cancellation = evidence["cancel_recovery"]["report"]
+    device_import = evidence["lightburn_device_import"]["report"]
+    transport_free = all(
+        item["report"].get("transport") is None
+        for item in evidence.values()
+        if "transport" in item["report"]
+    )
+    controller_unreachable = (
+        graphical["controller_backend_reachable"] is False
+    )
+    checks = {
+        "repository_checks_passed": all(
+            item["status"] == "passed" for item in repository_checks.values()
+        ),
+        "transport_free": transport_free,
+        "controller_backend_unreachable": controller_unreachable,
+        "negative_cases_fail_closed": negative["all_failed_closed"],
+        "cancel_requires_recovery": cancellation[
+            "restart_without_recovery_rejected"
+        ],
+        "incomplete_import_blocks_encoding": not device_import[
+            "addon_profile_seam"
+        ]["encoding_allowed"],
+    }
+    passed = all(checks.values())
+    return {
+        "checkpoint": "M1 no-device acceptance",
+        "status": "passed" if passed else "failed",
+        "rayforge_commit": commit,
+        "hardware_access": False,
+        "controller_backend_reachable": not controller_unreachable,
+        "checks": checks,
+        "repository_checks": repository_checks,
+        "evidence": evidence,
+        "remaining_manual_gates": [
+            "packaged Windows GUI interaction",
+            "known-working private LightBurn project import",
+        ],
+    }
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("rayforge_checkout", type=Path)
+    parser.add_argument("--output", type=Path, required=True)
+    args = parser.parse_args()
+
+    (ROOT / ".build").mkdir(exist_ok=True)
+    result = run(args.rayforge_checkout.resolve())
+    rendered = json.dumps(result, indent=2, sort_keys=True) + "\n"
+    args.output.parent.mkdir(parents=True, exist_ok=True)
+    args.output.write_text(rendered, encoding="utf-8", newline="\n")
+    print(f"status={result['status']}")
+    print(f"sha256={hashlib.sha256(rendered.encode()).hexdigest()}")
+    return 0 if result["status"] == "passed" else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/test_m1_acceptance_pipeline.py

@@ -0,0 +1,59 @@
+import json
+import unittest
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+ACCEPTANCE = ROOT / "scripts" / "run_m1_no_device_acceptance.py"
+BUILD = ROOT / "scripts" / "build_rayforge_windows_checkpoint.ps1"
+UPSTREAM = ROOT / "upstreams" / "rayforge.json"
+
+
+class M1AcceptancePipelineTests(unittest.TestCase):
+    def test_acceptance_collects_every_current_offline_proof(self):
+        source = ACCEPTANCE.read_text(encoding="utf-8")
+        expected = (
+            "rayforge-addon-spike.json",
+            "rayforge-graphical-workflow.json",
+            "rayforge-layer-model.json",
+            "rayforge-recipe-model.json",
+            "rayforge-jcz-equivalence.json",
+            "rayforge-jcz-negative-cases.json",
+            "rayforge-jcz-cancel-recovery.json",
+            "rayforge-lightburn-mopa-import.json",
+            "rayforge-lightburn-device-import.json",
+        )
+        for script in expected:
+            self.assertIn(script, source)
+
+    def test_acceptance_is_pinned_and_reports_remaining_manual_gates(self):
+        manifest = json.loads(UPSTREAM.read_text(encoding="utf-8"))
+        source = ACCEPTANCE.read_text(encoding="utf-8")
+        self.assertIn(manifest["commit"], source)
+        self.assertIn("packaged Windows GUI interaction", source)
+        self.assertIn("known-working private LightBurn project import", source)
+        self.assertIn('"-m", "unittest", "discover"', source)
+        self.assertIn("scripts/check_public_repo.py", source)
+        self.assertIn("timeout=120", source)
+
+    def test_build_is_explicit_pinned_and_packages_the_addon(self):
+        source = BUILD.read_text(encoding="utf-8")
+        self.assertNotIn("InstallWindowsDependencies", source)
+        self.assertIn("prepare_rayforge_build.ps1", source)
+        self.assertIn("rayforge-addon-the-pirate-ray-jcz", source)
+        self.assertIn("Compress-Archive", source)
+        self.assertIn("Get-FileHash -Algorithm SHA256", source)
+
+    def test_acceptance_has_no_hardware_commands(self):
+        source = ACCEPTANCE.read_text(encoding="utf-8").lower()
+        for forbidden in ("usb.core", "import usb", "open_device"):
+            self.assertNotIn(forbidden, source)
+
+    def test_build_rejects_transport_imports_in_staged_addon(self):
+        source = BUILD.read_text(encoding="utf-8").lower()
+        for forbidden in ("import usb", "import serial", "import socket"):
+            self.assertIn(forbidden, source)
+
+
+if __name__ == "__main__":
+    unittest.main()

tests/test_upstream_build_reference.py

@@ -21,7 +21,7 @@ class UpstreamBuildReferenceTests(unittest.TestCase):
         script = PREPARE.read_text(encoding="utf-8")
         self.assertIn('".build\\upstreams"', script)
         self.assertIn("SupportsShouldProcess", script)
-        self.assertIn("InstallWindowsDependencies", script)
+        self.assertNotIn("InstallWindowsDependencies", script)
         self.assertIn("BuildWindowsBundle", script)
         self.assertIn("No dependencies were installed", script)