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NTFSSecurity/.memory-bank/techContext.md

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status last-verified owner source
current 2026-10-08 active-agent repository evidence

Tech context

Stack

  • C# class libraries, old-style .csproj, .NET Framework 4.5.2, solution NTFSSecurity.sln (Visual Studio 2017 format).
  • Projects: NTFSSecurity (cmdlets), Security2 (ACL object model, Win32 interop), PrivilegeControl and ProcessPrivileges (token privileges), Log, TestClient, NTFSSecurityTest (MSTest, minimal coverage).
  • NuGet (packages.config): AlphaFS 2.2.x for long paths; System.Management.Automation.dll 10.0.10586.0. For a drive or volume root, AlphaFS DirectoryInfo reaches the device object, while Directory.Get/SetAccessControl('C:\') reaches the root folder (#41).
  • Module: NTFSSecurity.psd1 loads NTFSSecurity.psm1 (aliases dir2, gi2, rm2, del2), NTFSSecurity.Init.ps1 (Add-Type of the helper assemblies, prepends NTFSSecurity.format.ps1xml), and NTFSSecurity.dll.
  • Documentation: Markdown in Docs and README.md, rendered by GitHub and published to the wiki by CI; no documentation site (Decisions 9 and 11). Cmdlet pages are platyPS 0.14 markdown (schema 2.0.0) in Docs/Cmdlets.
  • Help: NTFSSecurity\en-US\NTFSSecurity.dll-Help.xml, generated from Docs/Cmdlets and committed (Decision 8).
  • Tests: Pester 5 in Tests, one file per area, against the Release build; Wiki.Tests.ps1 (wiki conversion) runs without a build.
  • CI: GitHub Actions, .github/workflows/ci.yml with the scripts in .github/scripts (Decision 11).

Environment

  • Windows only (NTFS, Win32 security APIs).
  • The Debug build writes straight into C:\Program Files\WindowsPowerShell\Modules\NTFSSecurity\.
  • No Visual Studio MSBuild or .NET Framework targeting pack on the workstation. A local build works with the .NET Framework MSBuild (%WINDIR%\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe) plus /p:CscToolPath to the Roslyn csc.exe of the Microsoft.Net.Compilers package; the legacy C# 5 compiler fails with CS0136. dotnet msbuild fails on the binary resources in Resources.resx (MSB3822, MSB3823).
  • platyPS 0.14.2, Pester 5.7.1, PSScriptAnalyzer, and powershell-yaml are installed only for PowerShell 7. Windows PowerShell 5.1, started from PowerShell 7, imports platyPS and Pester by full path (~\OneDrive\Documents\PowerShell\Modules\platyPS\0.14.2, C:\Program Files\PowerShell\Modules\Pester\5.7.1). Leave $env:PSModulePath alone: PowerShell 7 hands the child the Windows PowerShell default path, and clearing it leaves Windows PowerShell without its core modules (Pester fails: Add-Member not found).
  • MarkdownLinkCheck is not installed, and Save-Module crashed (FailFast) in PowerShell 7.6 on 2026-10-04. Download the 0.2.0 package from https://www.powershellgallery.com/api/v2/package/MarkdownLinkCheck/0.2.0 into $env:TEMP, extract it, and import it by path.
  • The first workstation is ARM64; PowerShell 7 runs as x64 under emulation.
  • The NuGet cache (~\.nuget\packages) holds every build dependency: copy alphafs\2.2.1, system.management.automation.dll\10.0.10586, and microsoft.netframework.referenceassemblies.net452\1.0.3 into packages\<Id>.<Version>, and point CscToolPath at microsoft.net.compilers\4.2.0\tools.
  • The second workstation (x64, used since 2026-10-05) runs the agent session elevated, so the tests that need privileges run there as in CI. It has no NuGet cache with these packages: download each from https://api.nuget.org/v3-flatcontainer/<id>/<version>/<id>.<version>.nupkg, extract the first three into packages\<Id>.<Version> and the compilers into $env:TEMP; Pester 5.7.1 comes from the Gallery package API the same way, its folder first on $env:PSModulePath of the test process. The GitHub CLI is in C:\Program Files\GitHub CLI, outside the PATH of sessions started before its installation.
  • The third workstation (ExHost, a Windows Server 2025 VM, x64, used since 2026-10-07) runs the agent session elevated and hosts the AutomatedLab lab WindowsAccessControlLab (Decision 20) with Hyper-V and AutomatedLab 5.61.704. It has no NuGet cache or platyPS: check each nuget.org package against the SHA-512 packageHash of its catalog entry (https://api.nuget.org/v3/registration5-semver1/<id>/<version>.json, then catalogEntry), and each Gallery package against PackageHash of api/v2/Packages(Id='<id>',Version='<version>'). Pester 5.7.1 is in V:\Git\WindowsAccessControl\output\RequiredModules. The GitHub CLI 2.102.0 is in C:\Program Files\GitHub CLI, outside the PATH, and signed in as raandree since 2026-10-08; Block-RemoteMutation denies its mutating commands, so the agent uses it read-only. The lab domains a.forest1.net and b.forest1.net had a maximum password age of 42 days, so the password of install expired on 2026-09-15 and AutomatedLab got access denied; it never expires since 2026-10-07, as in forest1.net.

Constraints

  • ModuleVersion is 5.0.0 with the prerelease label rc5. The latest stable tag and Gallery release is 4.2.6. The manifest requires PowerShell 5.1 and .NET Framework 4.5.2, uses RootModule, and lists exactly 36 cmdlets; Test-ModuleManifest passes in Windows PowerShell 5.1 and PowerShell 7.6.
  • The module source at master differs from tag 4.2.6 by the changes that CHANGELOG.md lists under [Unreleased], the release notes of each 5.0.0 prerelease.
  • PowerShell Gallery versions (publish dates): 4.0.0 (2015-08-19), 4.2.2 (2016-05-18), 4.2.3 (2016-05-19), 4.2.4 (2018-08-13), 4.2.5 (2019-07-11), 4.2.6 (2019-07-12), none with release notes; 5.0.0-rc1 (2026-10-04), 5.0.0-rc2 (2026-10-05), 5.0.0-rc3 and 5.0.0-rc4 (2026-10-06), 5.0.0-rc5 (2026-10-08), published by CI. Older versions were released on CodePlex only, and their dates are lost. The git history starts on 2016-10-10, when the project moved from CodePlex.
  • Releases up to 4.2.6 were Debug builds published by hand, with the whole output folder; their tags carry the previous version. From 5.0.0 on, CI publishes on a version tag (Decision 12). GitHub releases attach NTFSSecurity.zip.
  • CI: GitHub Actions on pull requests, pushes to master, and version tags (Decision 11); AppVeyor and Read the Docs aren't used (Decision 9).
  • CHANGELOG.md lists user-visible changes only; CI and build-only changes get no entry (Decision 7).
  • Remote mutations are the maintainer's: the user-level preToolUse hook Block-RemoteMutation.ps1 denies git push and mutating gh commands (pr create, pr close, and others) from the agent session, even after an explicit request. Its override, COPILOT_ATELIER_ALLOW_REMOTE=1, is read from the environment that VS Code starts the hook with; setting it inside an agent command has no effect (verified 2026-10-04). The hook matches the whole command text, so a commit message that quotes such a command is blocked too. Prepare the commands and descriptions; the maintainer runs them. Hand over each command as its own fenced code block at the end of the reply, which the chat shows with a copy button, and end the turn there; the maintainer reports back in the chat. The question dialog joins the lines of its text, has no copy button, and covers the reply before it (maintainer, 2026-10-06). A long question also hides its choices, so that it can't be answered: keep it to a few short sentences (2026-10-07). A pull request description names an issue without a closing keyword (fixes, closes, resolves) unless the merge should close it: "fixes #34" in #112 closed #34. Simulated gh commands in offline tests must print what the real ones print, such as the URL of a new comment.

Validation

  • CI (.github/workflows/ci.yml): job build on windows-2025 installs platyPS 0.14.2, MarkdownLinkCheck 0.2.0, and Pester 5.7.1 for all users, restores packages.config per project plus Microsoft.NETFramework.ReferenceAssemblies.net452 1.0.3, builds NTFSSecurity.csproj in Release with the MSBuild that vswhere finds, then: 01 Update-MarkdownHelp and fail on git diff -- Docs/Cmdlets; 02 Get-MarkdownLink -BrokenOnly; 03 regenerate the help file and fail on git status --porcelain -- NTFSSecurity/en-US; 04 Invoke-Tests.ps1 in Windows PowerShell 5.1 and in PowerShell 7. Job wiki on ubuntu-latest (read-only) clones the wiki (gh auth setup-git with the built-in token), runs Export-WikiContent.ps1, and lists the changed pages in the job summary; job publish-wiki (contents: write) repeats that and publishes, for master only. After the tests, build runs New-ModulePackage.ps1 and uploads the artifact packages (nupkg and NTFSSecurity.zip). Job release runs only for tags matching [0-9]+.[0-9]+.[0-9]+ or [0-9]+.[0-9]+.[0-9]+-*, in the environment powershell-gallery (secret PSGALLERY_API_KEY); see Decision 12. Actions are pinned by commit SHA: actions/checkout v7.0.1, actions/upload-artifact v7.0.1, actions/download-artifact v8.0.1; Dependabot proposes updates weekly, one week after a release.
  • Packaging needs PSResourceGet (Compress-PSResource, PowerShell 7.4 or later); its tests skip in Windows PowerShell. Dry run locally: run New-ModulePackage.ps1 against NTFSSecurity\bin\Release into $env:TEMP, then extract the nupkg into a folder and import it there.
  • Read CI runs with gh run list --repo raandree/NTFSSecurity --workflow ci.yml, gh pr checks <number>, and gh run view <id> --log-failed (read-only).
  • Workflow lint: actionlint (download the release zip into $env:TEMP and check its SHA-256 against the checksum file); PowerShell steps check $LASTEXITCODE after every native command, because GitHub checks only the last one.
  • Run platyPS in Windows PowerShell 5.1 to avoid PowerShell 7.4+ -ProgressAction noise.
  • Placeholder check: no {{ left in Docs/Cmdlets/*.md.
  • Help file: New-ExternalHelp -Path .\Docs\Cmdlets -OutputPath .\NTFSSecurity\en-US -Force must leave git status unchanged.
  • Pester: run detached (Start-DetachedPowerShell.ps1) in Windows PowerShell 5.1: the launcher starts pwsh, and its payload runs powershell.exe -NoProfile -EncodedCommand with Pester imported by full path. A run without bin\Release\en-US must fail.
  • Tests that run only without a privilege skip in CI and in an elevated session. Run them as a basic user with runas /trustlevel:0x20000, and give Windows PowerShell its own PSModulePath; that token holds one privilege, so the Enable-Privileges -PassThru count test fails there. runas returns at once, so the script it starts writes its own log. Pester reports a skipped -ForEach test under its template name, such as <_> should ..., and a test that ran under the expanded name: compare runs by template.
  • C# coverage (Decision 21): AltCover 9.0.145 (tools\net472\AltCover.exe of the nuget.org package) instruments a copy of the local Release build, which has the PDB files that the published package lacks: --save, --reportFormat=OpenCover, AlphaFS and System.Management.Automation excluded with --assemblyFilter. Put the instrumented module in NTFSSecurity\bin\Release of a git worktree, run .github\scripts\Invoke-Tests.ps1 elevated and as a basic user in both editions, then AltCover.exe runner --collect --recorderDirectory=<the instrumented folder>. Baseline of the rc5 tree on 2026-10-08: 55.9% of the lines (1,943 of 3,476), 37.4% of the branches (700 of 1,873); 60.1% of the lines without 244 lines in classes that no cmdlet calls.
  • Live tests (Decision 20): in an elevated Windows PowerShell 5.1 session on the lab host, Tests\Lab\Invoke-NTFSSecurityLabTest.ps1 with -Version for Gallery packages or -ModulePath for a build; it writes the results to $env:TEMP\NTFSSecurityLab\Results. A run of two versions in both editions takes about 30 minutes; -RemoveFixture removes its accounts, share, and folders from the lab.
  • Markdown lint: npx markdownlint-cli2 with MD013 limited to prose (tables, code, and headings excluded) on the conceptual pages; for CHANGELOG.md also MD024 with siblings_only: true, because every version repeats the category headings.
  • Gallery packages: download https://www.powershellgallery.com/api/v2/package/NTFSSecurity/<version> into $env:TEMP and extract it; dates come from the OData endpoint api/v2/FindPackagesById()?id='NTFSSecurity'. Import each version in its own process: every version's NTFSSecurity.dll has assembly version 4.2.1.0, so a second version in the same process reuses the first DLL.
  • YAML: ConvertFrom-Yaml (powershell-yaml) on .github/workflows/ci.yml.
  • Links: the CI step 02 (MarkdownLinkCheck 0.2.0) checks only relative links in Docs; it strips anchors and skips absolute URLs. Wiki.Tests.ps1 checks the wiki links with their anchors; check the links in README.md and CHANGELOG.md with a script.