Merge latest dev before process command-line merge

2026-10-08 07:15:25 +02:00 · 2026-09-22 18:15:57 +09:00
commit 92f2be18de
@@ -0,0 +1,46 @@
+name: Scoped Windows PowerShell event logging
+on:
+  push:
+    branches: ['**']
+    paths:
+      - 'WELA.ps1'
+      - 'scripts/PowerShellLogging.ps1'
+      - 'scripts/Configuration.ps1'
+      - 'tests/PowerShellLogging*'
+      - '.github/workflows/powershell-logging.yml'
+  pull_request:
+  workflow_dispatch:
+permissions:
+  contents: read
+jobs:
+  powershell-logging:
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-2022, windows-2025]
+        engine: [powershell, pwsh]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - name: Scoped policy and native events in Windows PowerShell
+        if: matrix.engine == 'powershell'
+        shell: powershell
+        run: |
+          ./tests/PowerShellLogging.Tests.ps1
+          ./tests/PowerShellLogging.Cli.Tests.ps1
+          ./tests/PowerShellLogging.Windows.Tests.ps1 -AllowDisposableLoggingWrite
+      - name: Scoped policy and native events in PowerShell7
+        if: matrix.engine == 'pwsh'
+        shell: pwsh
+        run: |
+          ./tests/PowerShellLogging.Tests.ps1
+          ./tests/PowerShellLogging.Cli.Tests.ps1
+          ./tests/PowerShellLogging.Windows.Tests.ps1 -AllowDisposableLoggingWrite
+      - name: Retain native policy, event and cleanup evidence
+        if: always()
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a
+        with:
+          name: powershell-logging-${{ matrix.os }}-${{ matrix.engine }}
+          path: ${{ runner.temp }}/wela-powershell-logging-*/
+          if-no-files-found: error
@@ -41,7 +41,7 @@ jobs:
          Copy-Item -Recurse -Path ./scripts -Destination release-binaries/
          Copy-Item -Recurse -Path ./modules -Destination release-binaries/
          New-Item -ItemType Directory -Path release-binaries/docs -Force | Out-Null
-          Copy-Item -Path ./docs/gpo-audit-packages.md, ./docs/gpo-package-deployment.md, ./docs/gpo-creation.md, ./docs/wmi-probe.md, ./docs/firewall-logging.md, ./docs/firewall-logging-recovery.md, ./docs/ipsec-prerequisites.md, ./docs/wec-state.md, ./docs/wec-update.md, ./docs/wec-runtime.md, ./docs/wef-deployment.md, ./docs/native-channel-access.md, ./docs/eventlog-settings.md, ./docs/channel-read.md, ./docs/native-rule-eligibility.md, ./docs/native-validation.md, ./docs/wef-arrival.md, ./docs/smb-runtime-activation.md, ./docs/smb-auditing.md, ./docs/wec-ingress.md, ./docs/capi2-probe.md, ./docs/powershell-transcription.md, ./docs/transcription-recovery.md, ./docs/eventlog-recovery.md, ./docs/failed-logon-probe.md, ./docs/wec-listener.md, ./docs/file-access-probe.md, ./docs/applocker-script-probe.md, ./docs/applocker-probe.md, ./docs/selected-sacl-configuration.md, ./docs/registry-sacl-recovery.md, ./docs/targeted-sacl-planning.md, ./docs/native-registry-sacl-validation.md, ./docs/wec-authorization.md, ./docs/channel-recovery.md, ./docs/outgoing-ntlm.md, ./docs/wec-collector-observation.md, ./docs/native-provider-packs.md, ./docs/native-provider-acceptance.md, ./docs/audit-catalog-mappings.md, ./docs/native-token-right-attribution.md, ./docs/audit-notifications.md, ./docs/native-onesettings-acceptance.md, ./docs/ntlm-auditing.md, ./docs/wef-query.md, ./docs/native-filesystem-sacl-validation.md, ./docs/process-commandline.md, ./docs/transcript-probe.md, ./docs/file-sacl-recovery.md, ./docs/dns-client-probe.md, ./docs/wmi-sacl-recovery.md, ./docs/wmi-namespace-auditing.md, ./docs/wmi-descendants.md -Destination release-binaries/docs/
+          Copy-Item -Path ./docs/gpo-audit-packages.md, ./docs/gpo-package-deployment.md, ./docs/gpo-creation.md, ./docs/wmi-probe.md, ./docs/firewall-logging.md, ./docs/firewall-logging-recovery.md, ./docs/ipsec-prerequisites.md, ./docs/wec-state.md, ./docs/wec-update.md, ./docs/wec-runtime.md, ./docs/wef-deployment.md, ./docs/native-channel-access.md, ./docs/eventlog-settings.md, ./docs/channel-read.md, ./docs/native-rule-eligibility.md, ./docs/native-validation.md, ./docs/wef-arrival.md, ./docs/smb-runtime-activation.md, ./docs/smb-auditing.md, ./docs/wec-ingress.md, ./docs/capi2-probe.md, ./docs/powershell-transcription.md, ./docs/transcription-recovery.md, ./docs/eventlog-recovery.md, ./docs/failed-logon-probe.md, ./docs/wec-listener.md, ./docs/file-access-probe.md, ./docs/applocker-script-probe.md, ./docs/applocker-probe.md, ./docs/selected-sacl-configuration.md, ./docs/registry-sacl-recovery.md, ./docs/targeted-sacl-planning.md, ./docs/native-registry-sacl-validation.md, ./docs/wec-authorization.md, ./docs/channel-recovery.md, ./docs/outgoing-ntlm.md, ./docs/wec-collector-observation.md, ./docs/native-provider-packs.md, ./docs/native-provider-acceptance.md, ./docs/audit-catalog-mappings.md, ./docs/native-token-right-attribution.md, ./docs/audit-notifications.md, ./docs/native-onesettings-acceptance.md, ./docs/ntlm-auditing.md, ./docs/wef-query.md, ./docs/native-filesystem-sacl-validation.md, ./docs/process-commandline.md, ./docs/transcript-probe.md, ./docs/file-sacl-recovery.md, ./docs/dns-client-probe.md, ./docs/wmi-sacl-recovery.md, ./docs/wmi-namespace-auditing.md, ./docs/wmi-descendants.md, ./docs/powershell-logging.md -Destination release-binaries/docs/

      - name: Set Artifact Name
        if: contains(matrix.info.os, 'windows') == true
@@ -8,6 +8,8 @@

 - 組み込みの Security 4688 コマンドライン記録ポリシーのみを扱う `process-commandline` の Audit/Plan/Configure を追加しました。変更前の型付き状態、競合検出、監査の前提条件の分離、Windows 上の設定とイベント検証に対応します。#364、#365、#387 に関連します。

+- Windows PowerShell 5.1 のモジュール／スクリプトブロック監査を明示的に選択する `powershell-logging` Audit/Plan/Configure を追加しました。モジュール名、事前の記録容量、型付き変更前記録、観測したポリシーの変化と再読取を確認し、呼出しログ・転写・Core設定・既存モジュール一覧を保持します。Server 2022/2025 の破棄可能なテストで正確な 4103/4104 と復元を要求し、PowerShell 7 のフォールバック、管理ポリシーの継続性、転送、Sigma 対応は別途検証します。(関連 #364, #366, #387) (@Shirofune-Security)
+
 - WMI の明示的な継承設定に、既存の子名前空間の上限付き調査、完全な変更前記録、ツリー変更の拒否を追加しました。親の SACL のみを書き込み、継承・保護状態と最終状態を確認します。不完全な伝播は失敗として扱い、子への直接書き込み、自動復元、イベントや Sigma 対応を保証しません。無関係な引数や余分な位置引数も拒否します。(Related #372) (@Shirofune-Security)

 - 追加が証明された親名前空間のみの明示的な監査ACEを1つ削除する `wmi-sacl-recovery` の Plan/Recover を追加しました。完了済み設定の整合する記録、現在の完全な記述子、レビュー済みハッシュ、監査縮小への明示的同意を必須とし、他の記述子情報・ACE・トークン権限を保持します。部分書き込みの証跡と所有する実機名前空間の後始末を検証し、過去の名前空間・操作者の同一性やイベント・Sigmaの準備完了は保証しません。 (関連 #372, #365) (@Shirofune-Security)
@@ -8,6 +8,8 @@

 - Added `process-commandline` Audit/Plan/Configure for only the built-in Security 4688 command-line policy, with typed originals, drift checks, separate audit prerequisites and native Windows configuration/event validation. Related to #364, #365 and #387.

+- Added explicit `powershell-logging` Audit/Plan/Configure for selected Windows PowerShell 5.1 module and script-block logging. Reviewed module names, preflight inventory-capacity checks, typed original journals, full observed-policy drift guards and native readback preserve invocation/transcription/Core settings and other module entries. Disposable Server 2022/2025 tests require exact local 4103/4104 evidence and policy cleanup; PowerShell 7 fallback, managed-host persistence, forwarding and Sigma readiness remain separate. (Related #364, #366, #387) (@Shirofune-Security)
+
 - Added bounded existing-descendant snapshots, full recovery evidence and stale-tree guards for explicit WMI inheritance. Parent-only SACL writes now require native inherited/protected readbacks and final drift checks; incomplete propagation fails without child setters, rollback ownership, event or Sigma credit. Unrelated or extra positional WMI command arguments are now refused. (Related #372) (@Shirofune-Security)

 - Add reviewed `wmi-sacl-recovery` Plan/Recover for one proven explicit parent-only namespace audit ACE. Require matching completed configuration evidence, current full descriptor, reviewed hash and explicit audit-reduction consent; preserve all other descriptor fields, remaining ACEs and token privileges, retain partial-write evidence, and test owned native namespace cleanup. Historical namespace/operator identity and event/Sigma readiness remain unclaimed. (Related #372, #365) (@Shirofune-Security)
@@ -252,7 +252,10 @@
    [string]$MeasurementOutputPath,
    [switch]$MeasurementExportEvtx,
    [switch]$Help,
-    [ValidateSet("Audit","Plan","Configure")][string]$ProcessCommandlineAction = "Audit"
+    [ValidateSet("Audit","Plan","Configure")][string]$ProcessCommandlineAction = "Audit",
+    [ValidateSet('Audit','Plan','Configure')][string]$PowerShellLoggingAction = 'Audit',
+    [ValidateSet('ScriptBlock','Module')][string[]]$PowerShellLoggingControl,
+    [string[]]$PowerShellLoggingModuleName
 )

 $WELAVersion     = "2.2.0"
@@ -293,6 +296,7 @@ $SaclTargetsPath    = Join-Path $ScriptRoot "config/audit_sacl_targets.json"
 . (Join-Path $ScriptRoot "scripts/Capi2Probe.ps1")
 . (Join-Path $ScriptRoot "scripts/FailedLogonProbe.ps1")
 . (Join-Path $ScriptRoot "scripts/PowerShellTranscription.ps1")
+. (Join-Path $ScriptRoot "scripts/PowerShellLogging.ps1")
 . (Join-Path $ScriptRoot "scripts/TranscriptProbe.ps1")
 Import-Module (Join-Path $ScriptRoot "modules/AuditProfiles.psm1") -ErrorAction Stop
 Import-Module (Join-Path $ScriptRoot "modules/RuleEligibility.psm1") -ErrorAction Stop
@@ -2118,6 +2122,7 @@ Usage:
  ./WELA.ps1 eventlog-recovery -Help # Review restoration of one completed log size/mode write
  ./WELA.ps1 wec-listener -Help      # Review one fixed-address native HTTP5985 listener
  ./WELA.ps1 wec-ingress -Help       # Review scoped collector firewall rule creation
+  ./WELA.ps1 powershell-logging -Help # Configure selected Windows PowerShell event policies
  ./WELA.ps1 ntlm-auditing -Help    # Configure selected incoming/domain NTLM auditing
  ./WELA.ps1 process-commandline -Help
  ./WELA.ps1 outgoing-ntlm -Help    # Configure outgoing NTLM auditing independently
@@ -2241,6 +2246,12 @@ if ($Cmd -eq 'process-commandline') {
    if (@($PSBoundParameters.Keys | Where-Object {$_ -notin @('Cmd','ProcessCommandlineAction','Auto','DryRun','BackupPath','ResultsPath','Help')}).Count) {throw 'process-commandline accepts only its dedicated options.'}
    if ($ProcessCommandlineAction -ne 'Configure' -and ($Auto -or $DryRun -or $BackupPath)) {throw 'Consent, dry-run and backup options require ProcessCommandlineAction Configure.'}
 }
+if ($Cmd -ne 'powershell-logging' -and @($PSBoundParameters.Keys | Where-Object {$_ -like 'PowerShellLogging*'}).Count) {throw 'PowerShellLogging options require powershell-logging.'}
+if ($Cmd -eq 'powershell-logging') {
+    if (@($PSBoundParameters.Keys | Where-Object {$_ -notin @('Cmd','PowerShellLoggingAction','PowerShellLoggingControl','PowerShellLoggingModuleName','Auto','DryRun','BackupPath','ResultsPath','Help')}).Count) {throw 'powershell-logging accepts only its dedicated options.'}
+    if (-not $Help) {Assert-WelaPsLoggingSelection $PowerShellLoggingAction $PowerShellLoggingControl $PowerShellLoggingModuleName}
+    if ($PowerShellLoggingAction -ne 'Configure' -and ($Auto -or $DryRun -or $BackupPath)) {throw 'Consent, dry-run and backup options require PowerShellLoggingAction Configure.'}
+}
 if ($Cmd -ne 'outgoing-ntlm' -and $PSBoundParameters.ContainsKey('NtlmAction')) {throw 'NtlmAction requires outgoing-ntlm.'}
 if ($Cmd -eq 'outgoing-ntlm') {
    if (@($PSBoundParameters.Keys | Where-Object {$_ -notin @('Cmd','NtlmAction','OutgoingNtlmMode','Auto','DryRun','BackupPath','ResultsPath','Help')}).Count) {throw 'outgoing-ntlm accepts only its dedicated options.'}
@@ -2341,7 +2352,7 @@ if ($Cmd -ne 'ad-object-sacl' -and @($PSBoundParameters.Keys | Where-Object {
 }).Count) {
    throw 'AD object SACL options require the dedicated ad-object-sacl command. No command was run.'
 }
-if ($DryRun -and -not ($Cmd -eq 'file-sacl-recovery' -and $FileSaclRecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'process-commandline' -and $ProcessCommandlineAction -eq 'Configure') -and -not ($Cmd -eq 'ntlm-auditing' -and $NtlmAuditAction -eq 'Configure') -and -not ($Cmd -eq 'outgoing-ntlm' -and $NtlmAction -eq 'Configure') -and -not ($Cmd -eq 'transcription-recovery' -and $TranscriptRecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'adcs-auditing' -and $AdcsAction -eq 'Configure') -and -not ($Cmd -eq 'adcs-resume' -and $AdcsResumeAction -eq 'Resume') -and -not ($Cmd -eq 'gpo-create' -and $GpoCreateAction -eq 'Create') -and -not ($Cmd -eq 'dns-analytical' -and $DnsAction -eq 'Configure') -and -not ($Cmd -eq 'targeted-sacl' -and $TargetSaclAction -eq 'Configure') -and -not ($Cmd -eq 'audit-recovery' -and $RecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'gpo-package' -and $GpoAction -eq 'Export') -and -not ($Cmd -eq 'audit-integrity' -and $IntegrityAction -eq 'Configure') -and -not ($Cmd -eq 'audit-notifications' -and $NotificationAction -eq 'Configure') -and -not ($Cmd -eq 'ldap-diagnostics' -and $LdapAction -eq 'Configure') -and -not ($Cmd -eq 'applocker-readiness' -and $AppLockerAction -eq 'Import') -and $Cmd -notin @('configure', 'configure-eventlogs') -and
+if ($DryRun -and -not ($Cmd -eq 'powershell-logging' -and $PowerShellLoggingAction -eq 'Configure') -and -not ($Cmd -eq 'file-sacl-recovery' -and $FileSaclRecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'ntlm-auditing' -and $NtlmAuditAction -eq 'Configure') -and -not ($Cmd -eq 'outgoing-ntlm' -and $NtlmAction -eq 'Configure') -and -not ($Cmd -eq 'transcription-recovery' -and $TranscriptRecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'adcs-auditing' -and $AdcsAction -eq 'Configure') -and -not ($Cmd -eq 'adcs-resume' -and $AdcsResumeAction -eq 'Resume') -and -not ($Cmd -eq 'gpo-create' -and $GpoCreateAction -eq 'Create') -and -not ($Cmd -eq 'dns-analytical' -and $DnsAction -eq 'Configure') -and -not ($Cmd -eq 'targeted-sacl' -and $TargetSaclAction -eq 'Configure') -and -not ($Cmd -eq 'audit-recovery' -and $RecoveryAction -eq 'Restore') -and -not ($Cmd -eq 'gpo-package' -and $GpoAction -eq 'Export') -and -not ($Cmd -eq 'audit-integrity' -and $IntegrityAction -eq 'Configure') -and -not ($Cmd -eq 'audit-notifications' -and $NotificationAction -eq 'Configure') -and -not ($Cmd -eq 'ldap-diagnostics' -and $LdapAction -eq 'Configure') -and -not ($Cmd -eq 'applocker-readiness' -and $AppLockerAction -eq 'Import') -and $Cmd -notin @('configure', 'configure-eventlogs') -and
    -not ($Cmd -eq 'provider-packs' -and $ProviderAction -eq 'Configure') -and
    -not ($Cmd -eq 'firewall-logging' -and $FirewallAction -eq 'Configure') -and
    -not ($Cmd -eq 'firewall-recovery' -and $FirewallRecoveryAction -eq 'Restore') -and
@@ -2820,6 +2831,13 @@ switch ($Cmd.ToLower()) {
            if ($report.ExitCode) { exit $report.ExitCode }
        } catch { Write-Host "[Failed] SMB auditing: $_" -ForegroundColor Red; exit 1 }
    }
+    'powershell-logging' {
+        if ($Help) {Write-Host 'Usage: powershell-logging [-PowerShellLoggingAction Audit|Plan|Configure] [-PowerShellLoggingControl ScriptBlock,Module] [-PowerShellLoggingModuleName literal-name,...] [-Auto] [-DryRun] [-BackupPath new-directory] [-ResultsPath new.json]. Plan/Configure require explicit controls; Module requires explicit names. Target is Windows PowerShell 5.1; PowerShell Core settings and invocation logging are preserved. See docs/powershell-logging.md.';return}
+        if ($PowerShellLoggingAction -eq 'Configure' -and -not (TestAdministrator)) {throw 'PowerShell logging configuration requires Administrator privileges.'}
+        $report=Invoke-WelaPowerShellLogging -Action $PowerShellLoggingAction -Control $PowerShellLoggingControl -ModuleName $PowerShellLoggingModuleName -Auto:$Auto -DryRun:$DryRun -BackupPath $BackupPath -ResultsPath $ResultsPath
+        $report
+        if($report.ExitCode){exit $report.ExitCode}
+    }
    'transcript-probe' {
        if ($Help) { Write-Host 'Usage: ./WELA.ps1 transcript-probe [-TranscriptProbeAction Plan|Run] -TranscriptProbeDirectory existing-local-policy-directory [-TranscriptProbeOutputPath new-private-directory]. Run starts one fixed native5.1 child using existing automatic transcription policy; no policy or destination changes. See docs/transcript-probe.md.'; return }
        $report=Invoke-WelaTranscriptProbe -Action $TranscriptProbeAction -Directory $TranscriptProbeDirectory -OutputPath $TranscriptProbeOutputPath
@@ -0,0 +1,62 @@
+# Scoped Windows PowerShell event logging
+
+`powershell-logging` audits, plans and explicitly enables selected **Windows PowerShell 5.1** module or script-block logging. This is separate from [text transcription](powershell-transcription.md), advanced Security audit profiles, 4688 command-line capture and the broader `configure` command. It changes no channel, execution policy, service, invocation-logging preference, audit mask or transcript setting. Sysmon is excluded.
+
+```powershell
+# Read-only inventory of machine/current-user Windows PowerShell policy,
+# PowerShell Core policy, protected-event policy and the Operational channel.
+./WELA.ps1 powershell-logging -ResultsPath new-audit.json
+
+# Select exactly the requested controls and module names.
+./WELA.ps1 powershell-logging -PowerShellLoggingAction Plan `
+  -PowerShellLoggingControl Module,ScriptBlock `
+  -PowerShellLoggingModuleName Microsoft.PowerShell.Utility -ResultsPath new-plan.json
+./WELA.ps1 powershell-logging -PowerShellLoggingAction Configure `
+  -PowerShellLoggingControl Module,ScriptBlock `
+  -PowerShellLoggingModuleName Microsoft.PowerShell.Utility -DryRun
+
+# After reviewing existing module names and the before-state:
+./WELA.ps1 powershell-logging -PowerShellLoggingAction Configure `
+  -PowerShellLoggingControl Module,ScriptBlock `
+  -PowerShellLoggingModuleName Microsoft.PowerShell.Utility `
+  -Auto -BackupPath C:\WELA-Recovery\new-run -ResultsPath new-result.json
+```
+
+Use a native 64-bit Windows PowerShell 5.1 or PowerShell 7 host. The actual process SID, Windows role, build, patch and installed Windows PowerShell engine are read; impersonated callers are refused and caller role/build overrides are refused. Reviewed families are Windows 11 builds 22000, 22621, 22631, 26100 and 26200, and Server 2022/2025 builds 20348/26100. Native client, joined-member, DC and AD CS acceptance remains separate from hosted standalone-server tests. `Winmgmt` and `EventLog` must already run; the command starts no service. Configure requires elevation and a fresh recovery directory. Plan and Configure require explicit controls; there is no implicit enable-everything selection. Audit without selection inventories existing policy only.
+
+The array examples are PowerShell syntax. When launching `powershell.exe -File` from another shell, use a reviewed PowerShell wrapper to bind multiple array elements correctly. Literal module names can contain ASCII letters, digits, dots, underscores and hyphens, up to 128 characters each. Up to 32 unique names can be selected. Paths and wildcard patterns are refused; the exact `*` value is accepted **only when explicitly supplied** to request all modules. Installation and execution of arbitrary selected modules are not performed or asserted.
+
+## Requested values and preserved scope
+
+Under `HKLM\SOFTWARE\Policies\Microsoft\Windows\PowerShell`:
+
+| Selection | Requested values |
+|---|---|
+| `ScriptBlock` | `ScriptBlockLogging\EnableScriptBlockLogging` = DWORD 1 |
+| `Module` | An explicit REG_SZ entry under `ModuleLogging\ModuleNames` for each selected module (name and data both equal the selected literal), then `ModuleLogging\EnableModuleLogging` = DWORD 1 |
+
+An existing matching module entry is retained. The command does not delete or replace other module names: **enabling Module logging also activates the existing configured module list**, which can already include `*` or broader patterns. Review the entire `Plan.Before.Machine` tree, not just the newly selected names. A collision between a selected value name and different existing data is refused. Unknown DWORD values, incorrect selected types, and non-string/empty existing module entries block the complete preflight. Unselected existing values and key access descriptors are preserved. Missing selected keys may be created below the existing Microsoft Windows policy parent; their absence is recorded in the original snapshot.
+
+Microsoft documents machine policy precedence over user policy, module pipeline logging, script-block logging, and the additional volume generated by invocation start/stop logging in [Windows PowerShell Group Policy settings](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_group_policy_settings?view=powershell-5.1). The [ADMX mapping](https://learn.microsoft.com/en-us/windows/client-management/mdm/policy-csp-admx-powershellexecutionpolicy#enablemodulelogging) documents the ModuleLogging registry location. This command offers explicit source controls; it does not import a Microsoft/CIS/ASD baseline or claim complete compliance with one.
+
+`SOFTWARE\Policies` is [shared across registry views](https://learn.microsoft.com/en-us/windows/win32/winprog64/shared-registry-keys). Both views are compared before a native-view write; no literal `Wow6432Node` policy tree is created. Snapshots include the Windows PowerShell machine and current-user policy trees, each bounded to 64 keys, eight levels, 128 values per key and one Mi character serialized data. Incomplete, denied, unstable or excessive trees are refused. Preflight projects all selected additions and refuses predictable key/value-count or serialized-value growth beyond these limits before any journal or write. New keys' inherited descriptor sizes remain subject to native readback. Existing owner/group/DACL observations are recorded; these snapshots do not claim registry SACL enumeration or effective access for other principals.
+
+PowerShell 7 has [separate PowerShell Core settings and an optional Windows-policy fallback](https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_group_policy_settings?view=powershell-7.5). Its registry policy trees are observed and preserved; `powershell.config.json`, session behavior and fallback selection are not assessed. **A PowerShell 7 deployment using that fallback may inherit changes to Windows PowerShell policy.** Running WELA under PowerShell 7 does not establish PowerShell 7 event coverage. Existing sessions are not restarted or asserted to adopt the changes.
+
+Script-block and module event content can include command arguments and script text. Existing protected-event settings are observed and preserved; the command does not provision encryption certificates, decrypt events, change event-reader permissions or assess whether a collector can read the resulting content.
+
+## Journals, drift and recovery
+
+Every changed value has an original `before.jsonl` entry containing the full typed observed state, requested value and source fingerprints before its native setter runs. Module entries are added before the enable DWORD. The shared configuration runner handles DryRun, declined changes, immediate readback and final verification. The command compares host/engine/source hashes, channel metadata and all observed policy trees again after approval and journaling, then validates that only the one requested value and required new ancestor keys changed. Failed reads, partial writes, wrong readback or unrelated drift stop later operations. Available original/results evidence remains; no automatic rollback overwrites later policy.
+
+This is not an atomic registry transaction. Another administrator or GPO can change state between observations. Local registry compliance does not identify the current authoritative GPO/MDM source, prove persistence after refresh or imply provider event generation. `-Auto` skips ordinary per-value prompts only. No group-policy refresh is invoked. A skipped/dry-run result is not configuration evidence; failures produce a nonzero exit. Each explicit ResultsPath must be a new file and is created without overwrite; protect the recovery parent and resulting host/policy evidence.
+
+For manual recovery, compare the original journal, confirmed results and current state. Restore only each proven changed value, using its original registry type/data or removing that exact value when it was absent. Preserve other module names and all unrelated values. Remove a newly created key only when it was originally absent and remains empty. Never delete the whole PowerShell policy tree or restore old full descriptors. Determine whether a newer authoritative policy has superseded the recorded state before restoration.
+
+## Native validation and limits
+
+The focused suite covers explicit selection, exact types, module-name collisions, preservation, journal-before-write, missing-key creation, inventory-capacity boundaries, idempotence, dry runs, refused output reuse, partial failures and approval-time drift. Public CLI tests reject unrelated/profile/role options before dispatch.
+
+The opt-in disposable Server 2022/2025 matrix runs WELA under Windows PowerShell 5.1 and PowerShell 7. It saves native state, prepares selected disabled values, exercises the public Audit/Plan/DryRun/Configure path, checks original journals and idempotence, then launches a new fixed **native Windows PowerShell 5.1** utility command with a unique benign marker. Native Operational event XML must match the owned child PID, provider GUID/name, actual SID, computer, record boundary and measured process-lifetime interval; script-block evidence additionally matches the exact script path/text and complete fragment counts. Only the fixture prepares policy or generates events. Wrong-type refusal and exact typed policy/key, channel and all-59-mask cleanup are required. Native event artifacts must be reviewed before claiming a matrix run passed.
+
+These are configuration and local benign-event checks, not a Sigma rule match. Windows 11, managed clients, DC/CA hosts, x86 Windows PowerShell, PowerShell 7 event generation, forwarding, backend normalization/queries, retention and volume remain separate acceptance. Reports retain `ReadyRuleCredit=0`; issues #364, #366 and #387 remain open for their broader requirements.
@@ -108,7 +108,7 @@ function Invoke-WelaConfigurationControl {

 function Complete-WelaConfiguration {
    param($Context, [string]$ResultsPath, $Plan,
-          [ValidateSet("native-windows-configuration", "process-commandline-policy-only", "outgoing-ntlm-audit-policy-only", "incoming-domain-ntlm-audit-policy-only", "advanced-audit-policy-only", "advanced-audit-policy-and-precedence", "firewall-text-logging-only", "event-log-size-and-mode-only", "smb-audit-policies-only", "native-channel-settings-only", "wmi-namespace-sacl-only", "ad-object-sacl-only", "windows-powershell-transcription-policy-only", "wef-source-configuration-only", "wec-collector-subscriptions-only", "audit-integrity-local-policy-only", "adcs-audit-settings-only", "disabled-unlinked-gpo-creation-only")]
+    [ValidateSet("native-windows-configuration", "process-commandline-policy-only", "outgoing-ntlm-audit-policy-only", "incoming-domain-ntlm-audit-policy-only", "advanced-audit-policy-only", "advanced-audit-policy-and-precedence", "firewall-text-logging-only", "event-log-size-and-mode-only", "smb-audit-policies-only", "native-channel-settings-only", "wmi-namespace-sacl-only", "ad-object-sacl-only", "windows-powershell-transcription-policy-only", "windows-powershell-event-logging-policy-only", "wef-source-configuration-only", "wec-collector-subscriptions-only", "audit-integrity-local-policy-only", "adcs-audit-settings-only", "disabled-unlinked-gpo-creation-only")]
          [string]$Scope = "native-windows-configuration",
          [string]$SuccessMessage = 'Configuration completed; all requested controls verified.')
    if ($Context.PSObject.Properties['CustomProfileGuard']) {
@@ -0,0 +1,184 @@
+# Scoped machine policy for the built-in Windows PowerShell 5.1 engine.
+function ConvertTo-WelaPsLoggingKey { param($Value) ConvertTo-Json -InputObject $Value -Depth 24 -Compress }
+function Assert-WelaPsLoggingSelection {
+    param([string]$Action,[string[]]$Control,[string[]]$ModuleName)
+    if ($null -eq $Control) {$Control=@()}; if ($null -eq $ModuleName) {$ModuleName=@()}
+    if ($Action -ne 'Audit' -and -not $Control.Count) { throw 'Plan and Configure require explicit PowerShellLoggingControl selection.' }
+    if (@($Control | ForEach-Object {$_.ToLowerInvariant()} | Select-Object -Unique).Count -ne $Control.Count -or @($Control | Where-Object {$_ -notin @('ScriptBlock','Module')}).Count) { throw 'Select unique ScriptBlock and/or Module controls.' }
+    if ($ModuleName.Count -and $Control -notcontains 'Module') { throw 'Module names require explicit Module selection.' }
+    if ($Action -ne 'Audit' -and $Control -contains 'Module' -and -not $ModuleName.Count) { throw 'Module selection requires explicit PowerShellLoggingModuleName values; use * only after reviewing all-module scope.' }
+    if ($ModuleName.Count -gt 32 -or @($ModuleName | ForEach-Object {$_.ToLowerInvariant()} | Select-Object -Unique).Count -ne $ModuleName.Count) { throw 'Select at most 32 unique module names.' }
+    foreach ($name in $ModuleName) {
+        if ($name -cne '*' -and $name -cnotmatch '^[A-Za-z0-9_][A-Za-z0-9_.-]{0,127}$') { throw 'Use literal module names or the explicitly selected * all-module value; paths and other wildcard patterns are refused.' }
+    }
+}
+function Get-WelaPsLoggingTree {
+    param([ValidateSet('LocalMachine','CurrentUser')][string]$Hive,[ValidateSet('Registry64','Registry32')][string]$View,[string]$Root)
+    $base=$null;$rows=New-Object 'System.Collections.Generic.List[object]';$queue=New-Object 'System.Collections.Generic.Queue[string]';$queue.Enqueue('')
+    try {
+        $base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::$Hive,[Microsoft.Win32.RegistryView]::$View)
+        while ($queue.Count) {
+            if ($rows.Count -ge 64) { throw 'PowerShell policy tree exceeds 64 keys; no partial snapshot is accepted.' }
+            $relative=$queue.Dequeue();$path=$Root;if ($relative) {$path+='\'+$relative};$key=$null
+            try {
+                $key=$base.OpenSubKey($path,$false)
+                if (-not $key) { if ($relative) {throw 'Policy key disappeared during enumeration.'};return [pscustomobject]@{Exists=$false;Keys=@()} }
+                $names=@($key.GetValueNames()|Sort-Object);$children=@($key.GetSubKeyNames()|Sort-Object)
+                if ($names.Count -gt 128 -or $children.Count -gt 64) {throw 'PowerShell policy key inventory is too large.'}
+                $values=@(foreach ($name in $names) {[pscustomobject][ordered]@{Name=$name;Type=$key.GetValueKind($name).ToString();Value=$key.GetValue($name,$null,[Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)}})
+                $acl=if ($PSVersionTable.PSVersion.Major -ge 6) {[Microsoft.Win32.RegistryAclExtensions]::GetAccessControl($key)}else{$key.GetAccessControl()}
+                $rows.Add([pscustomobject][ordered]@{Path=$relative;Values=$values;Children=$children;Access=$acl.GetSecurityDescriptorSddlForm([Security.AccessControl.AccessControlSections]'Owner,Group,Access')})
+                foreach ($child in $children) {$next=if($relative){$relative+'\'+$child}else{$child};if($next.Split('\').Count -gt 8){throw 'PowerShell policy tree exceeds eight levels.'};$queue.Enqueue($next)}
+            } finally {if($key){$key.Dispose()}}
+        }
+        $result=[pscustomobject]@{Exists=$true;Keys=@($rows.ToArray()|Sort-Object Path)}
+        if ((ConvertTo-WelaPsLoggingKey $result).Length -gt 1048576) {throw 'PowerShell policy snapshot exceeds one Mi character bound.'}
+        return $result
+    } finally {if($base){$base.Dispose()}}
+}
+function Get-WelaPsLoggingSources {
+    $root=Split-Path $PSScriptRoot -Parent
+    @(foreach ($name in @('WELA.ps1','scripts/PowerShellLogging.ps1','scripts/Configuration.ps1')) {[pscustomobject]@{Path=$name;Sha256=(Get-FileHash -LiteralPath (Join-Path $root $name) -Algorithm SHA256).Hash.ToLowerInvariant()}})
+}
+function Get-WelaPsLoggingSnapshot {
+    if ($env:OS -ne 'Windows_NT' -or -not [Environment]::Is64BitProcess) {throw 'Use native 64-bit PowerShell on Windows.'}
+    foreach($service in @('Winmgmt','EventLog')) {if((Get-Service -Name $service -ErrorAction Stop).Status -ne 'Running'){throw "$service must already be running; no service is started."}}
+    $identity=[Security.Principal.WindowsIdentity]::GetCurrent()
+    try {if(-not $identity.User -or $identity.ImpersonationLevel -ne [Security.Principal.TokenImpersonationLevel]::None){throw 'An actual non-impersonated process identity is required.'};$operator=[pscustomobject]@{Sid=$identity.User.Value;ImpersonationLevel=[string]$identity.ImpersonationLevel}}finally{$identity.Dispose()}
+    $os=Get-CimInstance Win32_OperatingSystem -Property BuildNumber,ProductType -ErrorAction Stop
+    $computer=Get-CimInstance Win32_ComputerSystem -Property Name,Domain,DomainRole,PartOfDomain -ErrorAction Stop
+    if ([string]$os.BuildNumber -notmatch '^\d+$' -or $computer.PartOfDomain -isnot [bool] -or $computer.DomainRole -notin @(0,1,2,3,4,5)) {throw 'Complete actual Windows role/build/join context is required.'}
+    $build=[int]$os.BuildNumber;$product=[int]$os.ProductType;$role=[int]$computer.DomainRole;$joined=$computer.PartOfDomain
+    $coherent=($product -eq 1 -and (($role -eq 0 -and -not $joined) -or ($role -eq 1 -and $joined))) -or ($product -eq 3 -and (($role -eq 2 -and -not $joined) -or ($role -eq 3 -and $joined))) -or ($product -eq 2 -and $role -in @(4,5) -and $joined)
+    if (-not $coherent -or [string]::IsNullOrWhiteSpace($computer.Name)) {throw 'Native host role observations conflict.'}
+    if (-not (($product -eq 1 -and $build -in @(22000,22621,22631,26100,26200)) -or ($product -in @(2,3) -and $build -in @(20348,26100)))) {throw 'Windows role/build is outside reviewed scope.'}
+    $engine=Get-WelaRegistryState 'HKLM:\SOFTWARE\Microsoft\PowerShell\3\PowerShellEngine' PowerShellVersion
+    if (-not $engine.ValueExists -or $engine.Type -cne 'String' -or $engine.Value -notmatch '^5\.1(?:\.|$)') {throw 'Installed Windows PowerShell 5.1 is not confirmed.'}
+    $exe=Join-Path $env:windir 'System32\WindowsPowerShell\v1.0\powershell.exe'
+    $engineHash=(Get-FileHash -LiteralPath $exe -Algorithm SHA256 -ErrorAction Stop).Hash.ToLowerInvariant()
+    if (-not (Get-WelaRegistryState 'HKLM:\SOFTWARE\Policies\Microsoft\Windows' '__WelaObservationOnly').KeyExists) {throw 'Existing Microsoft Windows policy parent key is required; unrecorded ancestors will not be created.'}
+    $windowsRoot='SOFTWARE\Policies\Microsoft\Windows\PowerShell';$coreRoot='SOFTWARE\Policies\Microsoft\PowerShellCore'
+    $machine=Get-WelaPsLoggingTree LocalMachine Registry64 $windowsRoot;$user=Get-WelaPsLoggingTree CurrentUser Registry64 $windowsRoot
+    if ((ConvertTo-WelaPsLoggingKey $machine) -cne (ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingTree LocalMachine Registry32 $windowsRoot)) -or (ConvertTo-WelaPsLoggingKey $user) -cne (ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingTree CurrentUser Registry32 $windowsRoot))) {throw 'Shared Windows PowerShell policy views disagree.'}
+    $coreMachine=Get-WelaPsLoggingTree LocalMachine Registry64 $coreRoot;$coreUser=Get-WelaPsLoggingTree CurrentUser Registry64 $coreRoot
+    $protected=Get-WelaPsLoggingTree LocalMachine Registry64 'SOFTWARE\Policies\Microsoft\Windows\EventLog\ProtectedEventLogging'
+    $channel=$null
+    try {$channel=Get-WinEvent -ListLog 'Microsoft-Windows-PowerShell/Operational' -ErrorAction Stop;$channelState=[pscustomobject]@{Name=[string]$channel.LogName;Enabled=[bool]$channel.IsEnabled;MaximumBytes=[long]$channel.MaximumSizeInBytes;Mode=[string]$channel.LogMode;Security=[string]$channel.SecurityDescriptor}}finally{if($channel -is [IDisposable]){$channel.Dispose()}}
+    $patch=Get-WelaRegistryState 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' UBR
+    if (-not $patch.ValueExists -or $patch.Type -ne 'DWord' -or $patch.Value -lt 0) {throw 'Exact native patch evidence is required.'}
+    [pscustomobject][ordered]@{Operator=$operator;Host=[pscustomobject]@{Computer=[string]$computer.Name;Domain=[string]$computer.Domain;Build=$build;Patch=$patch.Value;ProductType=$product;DomainRole=$role;PartOfDomain=$joined;CertSvcPresent=[bool](Get-Service CertSvc -ErrorAction SilentlyContinue)};Engine=[pscustomobject]@{Target='Windows PowerShell 5.1';Version=$engine.Value;Path=$exe;Sha256=$engineHash;WelaHostVersion=$PSVersionTable.PSVersion.ToString()};Sources=@(Get-WelaPsLoggingSources);Machine=$machine;CurrentUser=$user;PowerShellCoreMachine=$coreMachine;PowerShellCoreUser=$coreUser;ProtectedEventLogging=$protected;Channel=$channelState}
+}
+function Get-WelaPsLoggingValue {
+    param($Tree,[string]$Path,[string]$Name)
+    $keys=@($Tree.Keys|Where-Object Path -ieq $Path)
+    if ($keys.Count -gt 1) {throw 'Ambiguous policy key.'}
+    if ($keys.Count -eq 1) {$rows=@($keys[0].Values|Where-Object Name -ieq $Name);if($rows.Count -gt 1){throw 'Ambiguous policy value.'};if($rows.Count){return $rows[0]}}
+    return $null
+}
+function Get-WelaPsLoggingDefinitions {
+    param([string[]]$Control,[string[]]$ModuleName)
+    # Add selected module entries before enabling module logging. No existing name is removed.
+    if ($Control -contains 'Module') {
+        foreach ($name in @($ModuleName|Sort-Object)) {[pscustomobject]@{Control='Module';Path='ModuleLogging\ModuleNames';Name=$name;Type='String';Value=$name}}
+        [pscustomobject]@{Control='Module';Path='ModuleLogging';Name='EnableModuleLogging';Type='DWord';Value=1}
+    }
+    if ($Control -contains 'ScriptBlock') {[pscustomobject]@{Control='ScriptBlock';Path='ScriptBlockLogging';Name='EnableScriptBlockLogging';Type='DWord';Value=1}}
+}
+function Test-WelaPsLoggingValue {param($Snapshot,$Definition) $value=Get-WelaPsLoggingValue $Snapshot.Machine $Definition.Path $Definition.Name;return $null -ne $value -and $value.Type -ceq $Definition.Type -and (ConvertTo-WelaPsLoggingKey $value.Value) -ceq (ConvertTo-WelaPsLoggingKey $Definition.Value)}
+function Assert-WelaPsLoggingCapacity {
+    param($Snapshot,[array]$Definitions)
+    # Project predictable inventory growth before writing; new inherited access descriptors
+    # still require native readback. Projection never mutates the captured original state.
+    # JSON round-trips can reinterpret literal ISO-date registry strings as DateTime.
+    $tree=[pscustomobject]@{Exists=$Snapshot.Machine.Exists;Keys=@()};$rows=@{}
+    foreach($row in $Snapshot.Machine.Keys){
+        $values=@(foreach($entry in $row.Values){$data=$entry.Value;if($data -is [Array]){$data=$data.Clone()};[pscustomobject]@{Name=$entry.Name;Type=$entry.Type;Value=$data}})
+        $rows[$row.Path]=[pscustomobject]@{Path=$row.Path;Values=$values;Children=@($row.Children);Access=$row.Access}
+    }
+    foreach($definition in $Definitions){
+        $paths=@('');$path='';foreach($part in $definition.Path.Split('\')){$path=if($path){$path+'\'+$part}else{$part};$paths+=$path}
+        foreach($path in $paths){
+            if(-not $rows.ContainsKey($path)){$rows[$path]=[pscustomobject]@{Path=$path;Values=@();Children=@();Access=''}}
+            if($path){$separator=$path.LastIndexOf('\');$parent=if($separator -ge 0){$path.Substring(0,$separator)}else{''};$leaf=if($separator -ge 0){$path.Substring($separator+1)}else{$path};$rows[$parent].Children=@(@($rows[$parent].Children)+$leaf|Sort-Object -Unique)}
+        }
+        $row=$rows[$definition.Path];$row.Values=@($row.Values|Where-Object Name -ine $definition.Name)+[pscustomobject]@{Name=$definition.Name;Type=$definition.Type;Value=$definition.Value}
+        if($row.Values.Count -gt 128){throw 'Selected changes exceed the 128-value policy inventory capacity; no write is safe.'}
+    }
+    if($rows.Count -gt 64){throw 'Selected changes exceed the 64-key policy inventory capacity; no write is safe.'}
+    $tree.Exists=($rows.Count -gt 0);$tree.Keys=@($rows.Values|Sort-Object Path)
+    if((ConvertTo-WelaPsLoggingKey $tree).Length -gt 1048576){throw 'Selected changes exceed the policy snapshot character capacity; no write is safe.'}
+}
+function Assert-WelaPsLoggingKnown {
+    param($Snapshot,[array]$Definitions)
+    foreach ($definition in $Definitions) {
+        $value=Get-WelaPsLoggingValue $Snapshot.Machine $definition.Path $definition.Name
+        if ($value -and ($value.Type -cne $definition.Type -or ($definition.Type -eq 'DWord' -and $value.Value -notin @(0,1)) -or ($definition.Type -eq 'String' -and $value.Value -cne $definition.Value))) {throw "Selected policy value has an unknown type/value or a name collision: $($definition.Path)/$($definition.Name)."}
+    }
+    Assert-WelaPsLoggingCapacity $Snapshot $Definitions
+    if (@($Definitions|Where-Object Control -eq Module).Count) {
+        foreach($key in @($Snapshot.Machine.Keys|Where-Object Path -ieq 'ModuleLogging\ModuleNames')) {foreach($value in $key.Values) {if($value.Type -cne 'String' -or [string]::IsNullOrWhiteSpace($value.Value)){throw 'Existing module-name policy contains an unsupported type/empty value; preserve and review it.'}}}
+    }
+}
+function Set-WelaPsLoggingValue {
+    param($Definition)
+    if ($Definition.Path -notin @('ModuleLogging','ModuleLogging\ModuleNames','ScriptBlockLogging')) {throw 'Unsupported policy destination.'}
+    if (($Definition.Path -eq 'ModuleLogging' -and ($Definition.Name -cne 'EnableModuleLogging' -or $Definition.Type -cne 'DWord' -or $Definition.Value -ne 1)) -or ($Definition.Path -eq 'ScriptBlockLogging' -and ($Definition.Name -cne 'EnableScriptBlockLogging' -or $Definition.Type -cne 'DWord' -or $Definition.Value -ne 1))) {throw 'Unsupported logging DWORD mutation.'}
+    if ($Definition.Path -eq 'ModuleLogging\ModuleNames') {Assert-WelaPsLoggingSelection Configure @('Module') @($Definition.Name);if($Definition.Type -cne 'String' -or $Definition.Value -cne $Definition.Name){throw 'Unsupported module-name mutation.'}}
+    $base=$null;$key=$null
+    try {$base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64);$key=$base.CreateSubKey('SOFTWARE\Policies\Microsoft\Windows\PowerShell\'+$Definition.Path);$key.SetValue($Definition.Name,$Definition.Value,[Microsoft.Win32.RegistryValueKind]::$($Definition.Type));$key.Flush()}
+    finally{if($key){$key.Dispose()};if($base){$base.Dispose()}}
+}
+function Assert-WelaPsLoggingTransition {
+    param($Before,$After,$Definition)
+    foreach($property in $Before.PSObject.Properties.Name|Where-Object {$_ -cne 'Machine'}) {if((ConvertTo-WelaPsLoggingKey $Before.$property) -cne (ConvertTo-WelaPsLoggingKey $After.$property)){throw "Unselected state changed: $property"}}
+    if (-not (Test-WelaPsLoggingValue $After $Definition)) {throw 'Selected policy value did not match native readback.'}
+    $allowed=@('');$parts=$Definition.Path.Split('\');$part='';foreach($segment in $parts){$part=if($part){$part+'\'+$segment}else{$segment};$allowed+=$part}
+    $old=@{};foreach($row in $Before.Machine.Keys){$old[$row.Path]=$row}
+    $new=@{};foreach($row in $After.Machine.Keys){$new[$row.Path]=$row}
+    foreach($path in $old.Keys){if(-not $new.ContainsKey($path)){throw 'An original policy key disappeared.'};if($new[$path].Access -cne $old[$path].Access){throw 'An existing policy key access descriptor changed.'}}
+    foreach($path in $new.Keys){
+        if(-not $old.ContainsKey($path) -and $path -notin $allowed){throw 'An unrequested policy key appeared.'}
+        $expected=@();if($old.ContainsKey($path)){$expected=@($old[$path].Values|Where-Object {-not ($path -ieq $Definition.Path -and $_.Name -ieq $Definition.Name)})}
+        $observed=@($new[$path].Values|Where-Object {-not ($path -ieq $Definition.Path -and $_.Name -ieq $Definition.Name)})
+        if((ConvertTo-WelaPsLoggingKey $expected) -cne (ConvertTo-WelaPsLoggingKey $observed)){throw 'Unrelated policy values changed.'}
+        $expectedChildren=@();if($old.ContainsKey($path)){$expectedChildren=@($old[$path].Children)}
+        foreach($possible in $allowed){if(-not $possible){continue};$separator=$possible.LastIndexOf('\');$parent=if($separator -ge 0){$possible.Substring(0,$separator)}else{''};$leaf=if($separator -ge 0){$possible.Substring($separator+1)}else{$possible};if($parent -ieq $path){$expectedChildren+= $leaf}}
+        if((ConvertTo-WelaPsLoggingKey @($expectedChildren|Sort-Object -Unique)) -cne (ConvertTo-WelaPsLoggingKey @($new[$path].Children|Sort-Object -Unique))){throw 'Unrelated policy subkeys changed.'}
+    }
+}
+function Invoke-WelaPowerShellLogging {
+    param([ValidateSet('Audit','Plan','Configure')][string]$Action='Audit',[string[]]$Control=@(),[string[]]$ModuleName=@(),[switch]$Auto,[switch]$DryRun,[string]$BackupPath,[string]$ResultsPath)
+    Assert-WelaPsLoggingSelection $Action $Control $ModuleName
+    if($Action -ne 'Configure' -and ($Auto -or $DryRun -or $BackupPath)){throw 'Consent, dry-run and backup options require PowerShellLoggingAction Configure.'}
+    if($ResultsPath){$ResultsPath=$ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($ResultsPath);if(Test-Path -LiteralPath $ResultsPath){throw 'ResultsPath must name a new file.'};if(-not (Test-Path -LiteralPath ([IO.Path]::GetDirectoryName($ResultsPath)) -PathType Container)){throw 'ResultsPath parent must already exist.'}}
+    $definitions=@(Get-WelaPsLoggingDefinitions $Control $ModuleName);$before=$null;$diagnostic='';$known=$false
+    try {$before=Get-WelaPsLoggingSnapshot;Assert-WelaPsLoggingKnown $before $definitions;$known=$true}catch{$diagnostic=$_.Exception.Message}
+    $plan=[pscustomobject]@{Selection=@($Control);ModuleNames=@($ModuleName);Before=$before;Controls=@(foreach($definition in $definitions){[pscustomobject]@{Definition=$definition;Status=$(if(-not $known){'Unknown'}elseif(Test-WelaPsLoggingValue $before $definition){'AlreadyCompliant'}else{'ChangeRequired'})}});Status=$(if($known){'Observed'}else{'Unknown'});Diagnostic=$diagnostic;Provenance=@('https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_group_policy_settings?view=powershell-5.1','https://learn.microsoft.com/en-us/windows/client-management/mdm/policy-csp-admx-powershellexecutionpolicy');Meaning='Explicit Windows PowerShell 5.1 machine-policy selection. Existing module names remain active when Module logging is enabled; no claim of a complete Microsoft/CIS/ASD baseline.'}
+    if($Action -eq 'Configure') {
+        if(-not $known){$report=[pscustomobject]@{ExitCode=1;Scope='windows-powershell-event-logging-policy-only';Results=@();Diagnostic=$diagnostic}}
+        else {
+            $context=New-WelaConfigurationContext -Auto:$Auto -DryRun:$DryRun -BackupPath $BackupPath
+            $shared=@{Expected=$before;Definitions=$definitions;Failed=$false;StopReason=$null}
+            foreach($definition in $definitions){
+                if($shared.StopReason){$context.Results.Add([pscustomobject]@{Id=('PowerShellLogging/'+$definition.Path+'/'+$definition.Name);Kind='Registry';Target=@{Path=$definition.Path;Name=$definition.Name};Desired=@{Type=$definition.Type;Value=$definition.Value};Before=$null;After=$null;Status='Skipped';Diagnostic=$shared.StopReason});continue}
+                $state=@{Shared=$shared;Definition=$definition}
+                $read={param($s) if($s.Shared.Failed){throw 'An earlier operation failed; remaining operations are stopped.'};$snapshot=Get-WelaPsLoggingSnapshot;if((ConvertTo-WelaPsLoggingKey $snapshot) -cne (ConvertTo-WelaPsLoggingKey $s.Shared.Expected)){throw 'Policy, host, channel, engine or source changed from the reviewed state.'};Assert-WelaPsLoggingKnown $snapshot $s.Shared.Definitions;return $snapshot}
+                $test={param($snapshot,$s) Test-WelaPsLoggingValue $snapshot $s.Definition}
+                $apply={param($s)
+                    try {$fresh=Get-WelaPsLoggingSnapshot;if((ConvertTo-WelaPsLoggingKey $fresh) -cne (ConvertTo-WelaPsLoggingKey $s.Shared.Expected)){throw 'Pre-write state drifted after journal/approval; no write attempted.'};Set-WelaPsLoggingValue $s.Definition;$after=Get-WelaPsLoggingSnapshot;Assert-WelaPsLoggingTransition $fresh $after $s.Definition;$s.Shared.Expected=$after;'Only the named Windows PowerShell policy value was changed and read back.'}catch{$s.Shared.Failed=$true;throw}
+                }
+                Invoke-WelaConfigurationControl -Context $context -Id ('PowerShellLogging/'+$definition.Path+'/'+$definition.Name) -Kind Registry -Target @{Hive='LocalMachine';View='Registry64';Path=('SOFTWARE\Policies\Microsoft\Windows\PowerShell\'+$definition.Path);Name=$definition.Name} -Desired @{Type=$definition.Type;Value=$definition.Value} -Read $read -Compliant $test -Apply $apply -CallbackState $state -Description 'Enable the explicitly selected event-logging policy; existing module names are preserved.'
+                if($context.Results[$context.Results.Count-1].Status -eq 'Failed'){$shared.Failed=$true;$shared.StopReason='Not attempted because an earlier selected operation failed.'}
+                if($context.Results[$context.Results.Count-1].Status -eq 'Skipped' -and -not $DryRun){$shared.StopReason='Not attempted because an earlier selected operation was declined.'}
+            }
+            $report=Complete-WelaConfiguration -Context $context -Scope 'windows-powershell-event-logging-policy-only' -SuccessMessage 'Selected local machine policy values verified; fresh-session events and policy persistence remain separate.'
+        }
+    }else{$report=[pscustomobject]@{ExitCode=$(if($known){0}else{1});Scope='windows-powershell-event-logging-policy-only'}}
+    $report|Add-Member NoteProperty Action $Action;$report|Add-Member NoteProperty Plan $plan
+    $report|Add-Member NoteProperty EventGeneration 'Unverified; run a separately reviewed new Windows PowerShell session and retain native XML.'
+    $report|Add-Member NoteProperty PowerShell7Sessions 'Not assessed. Separate PowerShell Core policy/configuration and Windows-policy fallback are preserved; fallback users can inherit changed Windows settings.'
+    $report|Add-Member NoteProperty PolicyAuthority 'Local registry observations only; GPO/MDM persistence and current winning authority are not established.'
+    $report|Add-Member NoteProperty ReadyRuleCredit 0
+    if($ResultsPath){$bytes=[Text.UTF8Encoding]::new($false).GetBytes(($report|ConvertTo-Json -Depth 28));$file=[IO.File]::Open($ResultsPath,[IO.FileMode]::CreateNew,[IO.FileAccess]::Write,[IO.FileShare]::None);try{$file.Write($bytes,0,$bytes.Length)}finally{$file.Dispose()}}
+    return $report
+}
@@ -0,0 +1,31 @@
+$ErrorActionPreference='Stop';$repo=Split-Path $PSScriptRoot -Parent;$engine=(Get-Process -Id $PID).Path;$count=0
+$parameterAst=[Management.Automation.Language.Parser]::ParseFile((Join-Path $repo 'WELA.ps1'),[ref]$null,[ref]$null).ParamBlock.Parameters
+$names=@($parameterAst|ForEach-Object {$_.Name.VariablePath.UserPath});$helpIndex=[array]::IndexOf($names,'Help')
+foreach($name in @('PowerShellLoggingAction','PowerShellLoggingControl','PowerShellLoggingModuleName')){if([array]::IndexOf($names,$name) -le $helpIndex){throw 'New logging parameters must follow existing Help to preserve legacy positional binding.'};$count++}
+$cases=@(
+ @{Args=@('powershell-logging','-Help');Code=0;Pattern='Windows PowerShell 5.1'},
+ @{Args=@('configure','-PowerShellLoggingAction','Configure');Code=1;Pattern='require powershell-logging'},
+ @{Args=@('audit','-PowerShellLoggingControl','ScriptBlock');Code=1;Pattern='require powershell-logging'},
+ @{Args=@('powershell-logging','-PowerShellLoggingAction','Configure');Code=1;Pattern='explicit PowerShellLoggingControl'},
+ @{Args=@('powershell-logging','-PowerShellLoggingAction','Plan');Code=1;Pattern='explicit PowerShellLoggingControl'},
+ @{Args=@('powershell-logging','-PowerShellLoggingAction','Configure','-PowerShellLoggingControl','Module');Code=1;Pattern='PowerShellLoggingModuleName'},
+ @{Args=@('powershell-logging','-PowerShellLoggingControl','ScriptBlock','-PowerShellLoggingModuleName','Microsoft.PowerShell.Utility');Code=1;Pattern='Module selection'},
+ @{Args=@('powershell-logging','-Role','DomainController');Code=1;Pattern='dedicated options'},
+ @{Args=@('powershell-logging','-Profile','wela-2.2.0');Code=1;Pattern='dedicated options'},
+ @{Args=@('powershell-logging','-Auto');Code=1;Pattern='PowerShellLoggingAction'},
+ @{Args=@('powershell-logging','-DryRun');Code=1;Pattern='PowerShellLoggingAction'},
+ @{Args=@('powershell-logging','-PowerShellLoggingControl','Module','-PowerShellLoggingModuleName','Mod*');Code=1;Pattern='literal module'},
+ @{Args=@('powershell-logging','-Help','-Typo');Code=1;Pattern='Unsupported trailing arguments'}
+)
+foreach($case in $cases){
+ # ProcessStartInfo preserves literal wildcard arguments on Unix PowerShell hosts too.
+ $arguments=@('-NoLogo','-NoProfile','-NonInteractive','-File',"$repo/WELA.ps1")+@($case.Args)
+ foreach($argument in $arguments){if($argument.Contains('"') -or $argument.EndsWith('\')){throw 'Ambiguous fixture argument.'}}
+ $info=[Diagnostics.ProcessStartInfo]::new();$info.FileName=$engine;$info.Arguments=(@($arguments|ForEach-Object{'"'+$_+'"'}) -join ' ');$info.UseShellExecute=$false;$info.RedirectStandardOutput=$true;$info.RedirectStandardError=$true
+ $process=[Diagnostics.Process]::new();$process.StartInfo=$info;$started=$false
+ try{if(-not $process.Start()){throw 'CLI child did not start.'};$started=$true;$stdout=$process.StandardOutput.ReadToEndAsync();$stderr=$process.StandardError.ReadToEndAsync();if(-not $process.WaitForExit(30000)){throw 'CLI child timeout.'};$code=$process.ExitCode;$output=$stdout.Result+"`n"+$stderr.Result}
+ finally{if($started -and -not $process.HasExited){$process.Kill();$process.WaitForExit()};$process.Dispose()}
+ if(($code -eq 0) -ne ($case.Code -eq 0) -or $output -notmatch $case.Pattern){throw "CLI failed: $($case.Args -join ' ') -> $code / $output"};$count++
+}
+Write-Host "PASS: $count scoped PowerShell logging CLI guards."
+exit 0
@@ -0,0 +1,104 @@
+$ErrorActionPreference='Stop';$repo=Split-Path $PSScriptRoot -Parent
+. (Join-Path $repo 'scripts/Configuration.ps1')
+. (Join-Path $repo 'scripts/PowerShellLogging.ps1')
+$script:count=0;$script:ScriptRoot=$repo;$script:writes=0;$root=Join-Path ([IO.Path]::GetTempPath()) ('wela-pslogging-tests-'+[guid]::NewGuid().ToString('N'));$null=New-Item -ItemType Directory $root
+function Assert($Value,$Message){if(-not $Value){throw "FAIL: $Message"};$script:count++}
+function Reject([scriptblock]$Action,[string]$Pattern){$message='';try{&$Action}catch{$message=$_.Exception.Message};Assert ($message -match $Pattern) "Expected rejection $Pattern; got $message"}
+function CloneFixture($Value){ConvertTo-WelaPsLoggingKey $Value|ConvertFrom-Json}
+function Row($Path,$Values=@(),$Children=@()){[pscustomobject]@{Path=$Path;Values=@($Values);Children=@($Children);Access='original-acl'}}
+function Fixture {
+    [pscustomobject][ordered]@{Operator=[pscustomobject]@{Sid='S-1-5-21-1';ImpersonationLevel='None'};Host=[pscustomobject]@{Computer='fixture';Build=20348};Engine=[pscustomobject]@{Target='Windows PowerShell 5.1'};Sources=@('sha');Machine=[pscustomobject]@{Exists=$true;Keys=@((Row '' @() @('ModuleLogging','ScriptBlockLogging','Transcription')),(Row 'ModuleLogging' @([pscustomobject]@{Name='EnableModuleLogging';Type='DWord';Value=0}) @('ModuleNames')),(Row 'ModuleLogging\ModuleNames' @([pscustomobject]@{Name='existing';Type='String';Value='Existing.Module'})),(Row 'ScriptBlockLogging' @([pscustomobject]@{Name='EnableScriptBlockLogging';Type='DWord';Value=0},[pscustomobject]@{Name='EnableScriptBlockInvocationLogging';Type='DWord';Value=1})),(Row 'Transcription' @([pscustomobject]@{Name='EnableTranscripting';Type='DWord';Value=1})))};CurrentUser=@('preserved-user');PowerShellCoreMachine=@('preserved-core');PowerShellCoreUser=@('preserved-core-user');ProtectedEventLogging=@('preserved-protected');Channel=@('preserved-channel')}
+}
+function Mutate($Before,$Definition){
+    $after=CloneFixture $Before;$after.Machine.Exists=$true
+    $allowed=@('');$p='';foreach($segment in $Definition.Path.Split('\')){$p=if($p){$p+'\'+$segment}else{$segment};$allowed+=$p}
+    foreach($path in $allowed){if(-not @($after.Machine.Keys|Where-Object Path -ieq $path).Count){$after.Machine.Keys+=Row $path}}
+    foreach($key in $after.Machine.Keys){$key.Children=@($after.Machine.Keys|Where-Object {$_.Path -and $(if($_.Path.Contains('\')){$_.Path.Substring(0,$_.Path.LastIndexOf('\'))}else{''}) -ceq $key.Path}|ForEach-Object {$_.Path.Split('\')[-1]}|Sort-Object)}
+    $row=@($after.Machine.Keys|Where-Object Path -ieq $Definition.Path)[0];$row.Values=@($row.Values|Where-Object Name -ine $Definition.Name)+[pscustomobject]@{Name=$Definition.Name;Type=$Definition.Type;Value=$Definition.Value};$row.Values=@($row.Values|Sort-Object Name);$after.Machine.Keys=@($after.Machine.Keys|Sort-Object Path);return $after
+}
+function Get-WelaPsLoggingSnapshot {CloneFixture $script:observed}
+function Set-WelaPsLoggingValue {param($Definition)$script:writes++;if($script:failWrite){throw 'injected native write failure'};$script:observed=Mutate $script:observed $Definition;if($script:corrupt){$script:observed.CurrentUser=@('changed-user')}}
+function Reset {$script:observed=Fixture;$script:writes=0;$script:failWrite=$false;$script:corrupt=$false}
+try {
+    foreach($action in @('Plan','Configure')){Reject {Assert-WelaPsLoggingSelection $action @() @()} 'explicit'}
+    Reject {Assert-WelaPsLoggingSelection Configure @('Module') @()} 'ModuleName'
+    Reject {Assert-WelaPsLoggingSelection Plan @('ScriptBlock') @('x')} 'Module selection'
+    foreach($name in @('','C:\module','Mod*','../a','a?','a\b',('x'*129))){Reject {Assert-WelaPsLoggingSelection Plan @('Module') @($name)} 'literal'}
+    Reject {Assert-WelaPsLoggingSelection Plan @('Module','module') @('a')} 'unique'
+    Reject {Assert-WelaPsLoggingSelection Plan @('Module') @('A','a')} 'unique'
+    Assert-WelaPsLoggingSelection Plan @('Module') @('*');Assert $true 'Explicit all-module accepted'
+    Assert-WelaPsLoggingSelection Audit @() @();Assert $true 'Unselected Audit accepted'
+    $definitions=@(Get-WelaPsLoggingDefinitions @('Module','ScriptBlock') @('Microsoft.PowerShell.Utility'))
+    Assert ($definitions.Count -eq 3 -and $definitions[0].Type -eq 'String' -and $definitions[1].Name -eq 'EnableModuleLogging' -and $definitions[2].Name -eq 'EnableScriptBlockLogging') 'Name-before-enable ordering'
+    Reset;$before=CloneFixture $script:observed;$report=Invoke-WelaPowerShellLogging -Action Audit
+    Assert ($report.ExitCode -eq 0 -and $script:writes -eq 0 -and $report.ReadyRuleCredit -eq 0) 'Audit is read-only with zero readiness credit'
+    $plan=Invoke-WelaPowerShellLogging -Action Plan -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility
+    Assert ($plan.Plan.Controls.Count -eq 3 -and @($plan.Plan.Controls|Where-Object Status -eq ChangeRequired).Count -eq 3) 'Plan identifies all selected values'
+    $dry=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -DryRun -BackupPath (Join-Path $root 'dry')
+    Assert ($dry.ExitCode -eq 0 -and $dry.Skipped -eq 3 -and $script:writes -eq 0 -and -not (Test-Path (Join-Path $root 'dry'))) 'Dry run creates no journal or write'
+    $run=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'run')
+    Assert ($run.ExitCode -eq 0 -and $script:writes -eq 3 -and @($run.Results|Where-Object Status -eq Applied).Count -eq 3) 'Three exact writes applied'
+    $journal=@(Get-Content (Join-Path $root 'run/before.jsonl')|ForEach-Object {$_|ConvertFrom-Json})
+    Assert ($journal.Count -eq 3 -and (ConvertTo-WelaPsLoggingKey $journal[0].Before) -ceq (ConvertTo-WelaPsLoggingKey $before)) 'Complete original snapshot journaled before any mutation'
+    Assert ((Get-WelaPsLoggingValue $script:observed.Machine 'ModuleLogging\ModuleNames' 'existing').Value -ceq 'Existing.Module') 'Other module names retained'
+    Assert ((Get-WelaPsLoggingValue $script:observed.Machine 'ScriptBlockLogging' EnableScriptBlockInvocationLogging).Value -eq 1) 'Invocation logging retained'
+    Assert ((ConvertTo-WelaPsLoggingKey $script:observed.CurrentUser) -ceq (ConvertTo-WelaPsLoggingKey $before.CurrentUser)) 'User policy retained'
+    $again=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'again')
+    Assert ($again.ExitCode -eq 0 -and $script:writes -eq 3 -and @($again.Results|Where-Object Status -eq AlreadyCompliant).Count -eq 3) 'Repeat is idempotent'
+    Reset;$script:observed.Machine=[pscustomobject]@{Exists=$false;Keys=@()}
+    $absent=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'absent')
+    Assert ($absent.ExitCode -eq 0 -and $script:writes -eq 3) 'Absent root creates only declared ancestors'
+    foreach($case in @(@{Type='String';Value='0'},@{Type='DWord';Value=2})){
+        Reset;$value=Get-WelaPsLoggingValue $script:observed.Machine 'ScriptBlockLogging' EnableScriptBlockLogging;$value.Type=$case.Type;$value.Value=$case.Value
+        $bad=Invoke-WelaPowerShellLogging -Action Configure -Control ScriptBlock -Auto -BackupPath (Join-Path $root ([guid]::NewGuid().ToString('N')))
+        Assert ($bad.ExitCode -eq 1 -and $script:writes -eq 0) 'Wrong type/unknown DWORD refused before write'
+    }
+    Reset;$badName=Get-WelaPsLoggingValue $script:observed.Machine 'ModuleLogging\ModuleNames' existing;$badName.Type='DWord';$badName.Value=1
+    $bad=Invoke-WelaPowerShellLogging -Action Configure -Control Module -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'badname')
+    Assert ($bad.ExitCode -eq 1 -and -not (Test-Path (Join-Path $root 'badname'))) 'Unknown module value fails entire preflight'
+    foreach($countBefore in @(127,128)){
+        Reset;$row=@($script:observed.Machine.Keys|Where-Object Path -eq 'ModuleLogging\ModuleNames')[0]
+        $row.Values=@(1..$countBefore|ForEach-Object{[pscustomobject]@{Name=('Existing'+$_);Type='String';Value=('Existing'+$_)}})
+        $capacityPath=Join-Path $root ('value-capacity-'+$countBefore);$captured=ConvertTo-WelaPsLoggingKey $script:observed
+        $capacity=Invoke-WelaPowerShellLogging -Action Configure -Control Module -ModuleName NewModule -DryRun -BackupPath $capacityPath
+        Assert (($capacity.ExitCode -eq 0) -eq ($countBefore -eq 127)) '127 names permit one addition; 128 names refuse before the first write'
+        Assert ($script:writes -eq 0 -and -not (Test-Path $capacityPath) -and (ConvertTo-WelaPsLoggingKey $script:observed) -ceq $captured) 'Capacity preflight preserves the snapshot without writes or journals'
+    }
+    foreach($countBefore in @(63,64)){
+        Reset;$script:observed.Machine.Keys=@((Row '' @() @('ModuleLogging')),(Row 'ModuleLogging' @([pscustomobject]@{Name='EnableModuleLogging';Type='DWord';Value=0})))
+        foreach($index in 1..($countBefore-2)){$name='Existing'+$index;$script:observed.Machine.Keys+=Row $name;$script:observed.Machine.Keys[0].Children+=$name}
+        $capacity=Invoke-WelaPowerShellLogging -Action Plan -Control Module -ModuleName NewModule
+        Assert (($capacity.ExitCode -eq 0) -eq ($countBefore -eq 63)) '63 keys permit the missing selected key; 64 keys refuse predictable readback overflow'
+    }
+    Reset;$row=@($script:observed.Machine.Keys|Where-Object Path -eq Transcription)[0];$row.Values+=[pscustomobject]@{Name='LargeUnrelated';Type='String';Value=''}
+    $space=1048576-(ConvertTo-WelaPsLoggingKey $script:observed.Machine).Length;$row.Values[-1].Value='x'*$space
+    Assert ((ConvertTo-WelaPsLoggingKey $script:observed.Machine).Length -eq 1048576) 'Character-cap boundary fixture fits the current reader exactly'
+    $capacity=Invoke-WelaPowerShellLogging -Action Configure -Control Module -ModuleName NewModule -Auto -BackupPath (Join-Path $root 'character-capacity')
+    Assert ($capacity.ExitCode -eq 1 -and $script:writes -eq 0 -and -not (Test-Path (Join-Path $root 'character-capacity'))) 'Predictable serialized-value growth beyond character cap is refused before writes'
+    $literalSnapshot=Fixture;$row=@($literalSnapshot.Machine.Keys|Where-Object Path -eq Transcription)[0]
+    $row.Values+=@(1..64|ForEach-Object{[pscustomobject]@{Name=('LiteralDate'+$_);Type='String';Value='2026-09-21T00:00:00.000Z'}})
+    $row.Values+=[pscustomobject]@{Name='LiteralBytes';Type='Binary';Value=[byte[]]@(0,127,255)},[pscustomobject]@{Name='LiteralStrings';Type='MultiString';Value=[string[]]@('2026-09-21T00:00:00.000Z','')};$row.Values+=[pscustomobject]@{Name='LiteralFiller';Type='String';Value=''};$space=1048576-(ConvertTo-WelaPsLoggingKey $literalSnapshot.Machine).Length;$row.Values[-1].Value='x'*$space
+    $literalBefore=ConvertTo-WelaPsLoggingKey $literalSnapshot
+    Reject {Assert-WelaPsLoggingCapacity $literalSnapshot @(Get-WelaPsLoggingDefinitions @('Module') @('NewModule'))} 'character capacity'
+    Assert ((ConvertTo-WelaPsLoggingKey $literalSnapshot) -ceq $literalBefore -and $row.Values[1].Value -is [string]) 'Capacity projection preserves literal ISO strings and the caller snapshot'
+    Assert (($row.Values|Where-Object Name -eq LiteralBytes).Value -is [byte[]] -and ($row.Values|Where-Object Name -eq LiteralStrings).Value -is [string[]]) 'Projection retains typed binary and multi-string caller data'
+    Reset;$script:failWrite=$true;$failed=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'writefailure')
+    Assert ($failed.ExitCode -eq 1 -and $script:writes -eq 1 -and @($failed.Results|Where-Object Status -eq Skipped).Count -eq 2) 'Native failure stops and explicitly reports later writes'
+    Reset;$script:corrupt=$true;$failed=Invoke-WelaPowerShellLogging -Action Configure -Control Module,ScriptBlock -ModuleName Microsoft.PowerShell.Utility -Auto -BackupPath (Join-Path $root 'corrupt')
+    Assert ($failed.ExitCode -eq 1 -and $script:writes -eq 1) 'Preservation failure stops later writes'
+    Reset;$snapshot=CloneFixture $script:observed;$definition=$definitions[0];$after=Mutate $snapshot $definition;Assert-WelaPsLoggingTransition $snapshot $after $definition;Assert $true 'Exact additive transition accepted'
+    foreach($property in @('Operator','Host','Sources','CurrentUser','PowerShellCoreMachine','PowerShellCoreUser','ProtectedEventLogging','Channel')){$changed=CloneFixture $after;$changed.$property='drift';Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'Unselected state'}
+    $changed=CloneFixture $after;$changed.Machine.Keys[0].Access='new-acl';Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'descriptor'
+    $changed=CloneFixture $after;$changed.Machine.Keys=@($changed.Machine.Keys|Where-Object Path -ne Transcription);Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'disappeared'
+    $changed=CloneFixture $after;$changed.Machine.Keys+=Row 'extra';Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'unrequested'
+    $changed=CloneFixture $after;(Get-WelaPsLoggingValue $changed.Machine 'Transcription' EnableTranscripting).Value=0;Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'Unrelated policy values'
+    $changed=CloneFixture $after;$changed.Machine.Keys[0].Children+= 'extra';Reject {Assert-WelaPsLoggingTransition $snapshot $changed $definition} 'subkeys'
+    Reset;$script:promptBefore=CloneFixture $script:observed
+    function Read-Host {param($Prompt)$script:observed.Host.Computer='changed-during-prompt';'Y'}
+    $drift=Invoke-WelaPowerShellLogging -Action Configure -Control ScriptBlock -BackupPath (Join-Path $root 'drift')
+    Assert ($drift.ExitCode -eq 1 -and $script:writes -eq 0) 'Prompt-time drift refused before mutation'
+    Remove-Item Function:\Read-Host
+    Reset;Set-Content -LiteralPath (Join-Path $root 'existing.json') -Value 'keep';Reject {Invoke-WelaPowerShellLogging -ResultsPath (Join-Path $root 'existing.json')} 'new file';Assert ((Get-Content -Raw (Join-Path $root 'existing.json')).Trim() -ceq 'keep') 'Existing report preserved'
+    foreach($options in @(@{Auto=$true},@{DryRun=$true},@{BackupPath='x'})){Reject {Invoke-WelaPowerShellLogging @options} 'require PowerShellLoggingAction Configure'}
+    Write-Host "PASS: $script:count scoped PowerShell logging assertions."
+} finally {Remove-Item -LiteralPath $root -Recurse -Force}
@@ -0,0 +1,143 @@
+param([switch]$AllowDisposableLoggingWrite)
+$ErrorActionPreference='Stop'
+if(-not $AllowDisposableLoggingWrite -or $env:GITHUB_ACTIONS -ne 'true' -or $env:RUNNER_ENVIRONMENT -ne 'github-hosted'){throw 'Explicit opt-in on disposable GitHub-hosted Windows is required.'}
+$repo=Split-Path $PSScriptRoot -Parent
+. (Join-Path $repo 'scripts/Configuration.ps1')
+. (Join-Path $repo 'scripts/PowerShellLogging.ps1')
+Import-Module (Join-Path $repo 'modules/AuditProfiles.psm1') -Force
+$root=Join-Path $env:RUNNER_TEMP ('wela-powershell-logging-'+[guid]::NewGuid().ToString('N'));$null=New-Item -ItemType Directory $root
+$engine=(Get-Process -Id $PID).Path;$script:count=0;$failure=$null;$cleanupErrors=@();$original=$null;$prepared=$null;$masks=$null;$workerPath=$null;$mutationStarted=$false
+function Assert($Value,$Message){if(-not $Value){throw $Message};$script:count++}
+function Save($Name,$Value){$Value|ConvertTo-Json -Depth 28|Set-Content -LiteralPath (Join-Path $root $Name) -Encoding UTF8}
+function Masks {$m=Get-WelaEffectiveAuditPolicy;@($m.Keys|Sort-Object|ForEach-Object{"$_=$($m[$_])"}) -join ';'}
+Add-Type -TypeDefinition @'
+using System;using System.IO;using System.Text;using System.Threading.Tasks;using System.Runtime.InteropServices;
+public static class WelaPsLoggingFixture {
+ [DllImport("kernel32.dll")] static extern void GetSystemTimePreciseAsFileTime(out long value);
+ public static DateTime Now(){long value;GetSystemTimePreciseAsFileTime(out value);return DateTime.FromFileTimeUtc(value);}
+ public static async Task<string> Read(TextReader reader){var text=new StringBuilder();var buffer=new char[1024];while(true){int n=await reader.ReadAsync(buffer,0,buffer.Length).ConfigureAwait(false);if(n==0)return text.ToString();if(n>1048576-text.Length)throw new InvalidDataException("Owned child output exceeds one Mi character bound.");text.Append(buffer,0,n);}}
+}
+'@
+function Child([string]$Label,[string]$Executable,[string[]]$Arguments){
+    foreach($a in $Arguments){if($a.Contains('"') -or $a.EndsWith('\') -or $a -match '[\x00-\x1f]'){throw 'Ambiguous fixture process argument.'}}
+    $info=[Diagnostics.ProcessStartInfo]::new();$info.FileName=$Executable;$info.Arguments=(@($Arguments|ForEach-Object{'"'+$_+'"'}) -join ' ');$info.UseShellExecute=$false;$info.CreateNoWindow=$true;$info.RedirectStandardOutput=$true;$info.RedirectStandardError=$true
+    $p=[Diagnostics.Process]::new();$p.StartInfo=$info;$started=$false
+    try{
+        $start=[WelaPsLoggingFixture]::Now();if(-not $p.Start()){throw 'Child did not start.'};$started=$true;$ownedId=$p.Id
+        $stdout=[WelaPsLoggingFixture]::Read($p.StandardOutput);$stderr=[WelaPsLoggingFixture]::Read($p.StandardError)
+        if(-not $p.WaitForExit(180000)){throw 'Owned child exceeded three minutes.'};$end=[WelaPsLoggingFixture]::Now()
+        if(-not [Threading.Tasks.Task]::WaitAll([Threading.Tasks.Task[]]@($stdout,$stderr),5000)){throw 'Owned child output drain timed out.'}
+        $receipt=[pscustomobject]@{Executable=$Executable;Arguments=$info.Arguments;Pid=$ownedId;StartedUtc=$start.ToString('o');ExitedUtc=$end.ToString('o');ExitCode=$p.ExitCode;Output=$stdout.Result;Error=$stderr.Result}
+        Save ($Label+'-process.json') $receipt;return $receipt
+    }finally{if($started -and -not $p.HasExited){$p.Kill();if(-not $p.WaitForExit(5000)){throw 'Owned child exit could not be confirmed; cleanup may be incomplete.'}};$p.Dispose()}
+}
+$wrapper=Join-Path $root 'public.ps1'
+@'
+param([string]$Repository,[string]$Request)
+$ErrorActionPreference='Stop'
+$data=Get-Content -LiteralPath $Request -Raw|ConvertFrom-Json;$options=@{}
+foreach($property in $data.PSObject.Properties){$options[$property.Name]=$property.Value}
+$global:LASTEXITCODE=0
+& (Join-Path $Repository 'WELA.ps1') @options
+exit $LASTEXITCODE
+'@ | Set-Content -LiteralPath $wrapper -Encoding UTF8
+function Public([string]$Label,[hashtable]$Parameters,[int]$ExpectedExit=0){
+    $Parameters.Cmd='powershell-logging';$Parameters.ResultsPath=Join-Path $root ($Label+'.json');$request=Join-Path $root ($Label+'-request.json');$Parameters|ConvertTo-Json -Depth 8|Set-Content -LiteralPath $request -Encoding UTF8
+    $process=Child $Label $engine @('-NoLogo','-NoProfile','-NonInteractive','-File',$wrapper,'-Repository',$repo,'-Request',$request)
+    Assert (($process.ExitCode -eq 0) -eq ($ExpectedExit -eq 0)) "Public $Label unexpected exit $($process.ExitCode): $($process.Output) $($process.Error)"
+    if(Test-Path -LiteralPath $Parameters.ResultsPath){return Get-Content -Raw -LiteralPath $Parameters.ResultsPath|ConvertFrom-Json};throw 'Public report missing.'
+}
+function RestoreValue($Tree,[string]$Path,[string]$Name){
+    $originalValue=Get-WelaPsLoggingValue $Tree $Path $Name;$base=$null;$key=$null
+    try{$base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64);$key=$base.OpenSubKey('SOFTWARE\Policies\Microsoft\Windows\PowerShell\'+$Path,$true);if($originalValue){if(-not $key){throw 'Original policy key disappeared.'};$value=$originalValue.Value;if($originalValue.Type -eq 'DWord'){$value=[int]$value};if($originalValue.Type -eq 'QWord'){$value=[long]$value};if($originalValue.Type -eq 'Binary'){$value=[byte[]]$value};if($originalValue.Type -eq 'MultiString'){$value=[string[]]$value};$key.SetValue($Name,$value,[Microsoft.Win32.RegistryValueKind]::$($originalValue.Type));$key.Flush()}elseif($key){$key.DeleteValue($Name,$false);$key.Flush()}}
+    finally{if($key){$key.Dispose()};if($base){$base.Dispose()}}
+}
+function RemoveCreatedKeys($Tree){
+    $base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64)
+    try{foreach($path in @('ModuleLogging\ModuleNames','ScriptBlockLogging','ModuleLogging','')){
+        if(@($Tree.Keys|Where-Object Path -ieq $path).Count){continue};$full='SOFTWARE\Policies\Microsoft\Windows\PowerShell';if($path){$full+='\'+$path};$key=$null
+        try{$key=$base.OpenSubKey($full,$false);if(-not $key){continue};if($key.ValueCount -or $key.SubKeyCount){throw "Created key is no longer empty: $full"}}finally{if($key){$key.Dispose()}}
+        $base.DeleteSubKey($full,$false)
+    }}finally{$base.Dispose()}
+}
+function ReadEvents([int]$OwnedId,[long]$Watermark){
+    $query="*[System[(EventID=4103 or EventID=4104) and Execution[@ProcessID='$OwnedId'] and EventRecordID > $Watermark]]"
+    $q=[Diagnostics.Eventing.Reader.EventLogQuery]::new('Microsoft-Windows-PowerShell/Operational',[Diagnostics.Eventing.Reader.PathType]::LogName,$query);$q.TolerateQueryErrors=$false
+    $reader=$null;$list=New-Object 'System.Collections.Generic.List[string]'
+    try{$reader=[Diagnostics.Eventing.Reader.EventLogReader]::new($q);for($i=0;$i -le 64;$i++){$record=$reader.ReadEvent([TimeSpan]::FromSeconds(2));if(-not $record){break};try{$xml=$record.ToXml();if($xml.Length -gt 262144){throw 'Owned child event exceeds XML bound.'};$list.Add($xml)}finally{$record.Dispose()};if($i -eq 64){throw 'Owned child event candidate cap exceeded.'}};$statuses=@($reader.LogStatus);if($statuses.Count -ne 1 -or $statuses[0].LogName -cne 'Microsoft-Windows-PowerShell/Operational' -or $statuses[0].StatusCode -ne 0){throw 'Native query must report exactly one complete successful expected channel.'};return @($list.ToArray())}finally{if($reader){$reader.Dispose()}}
+}
+try{
+    $original=Get-WelaPsLoggingSnapshot;Save 'original.json' $original;$masks=Masks
+    Assert ($original.Host.ProductType -eq 3 -and $original.Host.DomainRole -eq 2 -and -not $original.Host.PartOfDomain -and -not $original.Host.CertSvcPresent) 'Fixture requires a standalone disposable non-CA server.'
+    Assert $original.Channel.Enabled 'Existing PowerShell operational channel must already be enabled.'
+    $protected=@($original.ProtectedEventLogging.Keys|ForEach-Object {$_.Values}|Where-Object {$_.Name -eq 'EnableProtectedEventLogging' -and $_.Value -ne 0})
+    Assert ($protected.Count -eq 0) 'Protected logging must not obscure this plaintext event fixture.'
+    # Test fixture only: prepare explicit disabled values; production has no disable action.
+    $mutationStarted=$true
+    foreach($pair in @(@('ModuleLogging','EnableModuleLogging'),@('ScriptBlockLogging','EnableScriptBlockLogging'))){
+        $base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64);$key=$null
+        try{$key=$base.CreateSubKey('SOFTWARE\Policies\Microsoft\Windows\PowerShell\'+$pair[0]);$key.SetValue($pair[1],0,[Microsoft.Win32.RegistryValueKind]::DWord);$key.Flush()}finally{if($key){$key.Dispose()};$base.Dispose()}
+    }
+    $selectedName=Get-WelaPsLoggingValue $original.Machine 'ModuleLogging\ModuleNames' 'Microsoft.PowerShell.Utility'
+    $base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64);$key=$null
+    try{$key=$base.OpenSubKey('SOFTWARE\Policies\Microsoft\Windows\PowerShell\ModuleLogging\ModuleNames',$true);if($key){$key.DeleteValue('Microsoft.PowerShell.Utility',$false);$key.Flush()}}finally{if($key){$key.Dispose()};$base.Dispose()}
+    $prepared=Get-WelaPsLoggingSnapshot;Save 'prepared.json' $prepared
+    $audit=Public audit @{};Assert ($audit.ExitCode -eq 0 -and $audit.ReadyRuleCredit -eq 0) 'Unselected public Audit is observational.'
+    $plan=Public plan @{PowerShellLoggingAction='Plan';PowerShellLoggingControl=@('Module','ScriptBlock');PowerShellLoggingModuleName=@('Microsoft.PowerShell.Utility')}
+    Assert (@($plan.Plan.Controls|Where-Object Status -eq ChangeRequired).Count -eq 3) 'Public plan contains three exact value changes.'
+    $dry=Public dry @{PowerShellLoggingAction='Configure';PowerShellLoggingControl=@('Module','ScriptBlock');PowerShellLoggingModuleName=@('Microsoft.PowerShell.Utility');DryRun=$true;BackupPath=(Join-Path $root 'dry-backup')}
+    Assert ($dry.Skipped -eq 3 -and -not (Test-Path (Join-Path $root 'dry-backup'))) 'Public dry run writes neither policy nor backup.'
+    Assert ((ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingSnapshot)) -ceq (ConvertTo-WelaPsLoggingKey $prepared)) 'Audit/Plan/DryRun preserve the complete prepared snapshot.'
+    $apply=Public configure @{PowerShellLoggingAction='Configure';PowerShellLoggingControl=@('Module','ScriptBlock');PowerShellLoggingModuleName=@('Microsoft.PowerShell.Utility');Auto=$true;BackupPath=(Join-Path $root 'configure-backup')}
+    Assert ($apply.ExitCode -eq 0 -and @($apply.Results|Where-Object Status -eq Applied).Count -eq 3) 'Public Configure applies three named values.'
+    $journal=@(Get-Content -LiteralPath (Join-Path $root 'configure-backup/before.jsonl')|ForEach-Object{$_|ConvertFrom-Json});Assert ($journal.Count -eq 3) 'Each native write has its own original journal.'
+    Assert ((ConvertTo-WelaPsLoggingKey $journal[0].Before) -ceq (ConvertTo-WelaPsLoggingKey $prepared)) 'First journal matches exact typed prepared state.'
+    $configured=Get-WelaPsLoggingSnapshot;Save 'configured.json' $configured
+    $again=Public repeat @{PowerShellLoggingAction='Configure';PowerShellLoggingControl=@('Module','ScriptBlock');PowerShellLoggingModuleName=@('Microsoft.PowerShell.Utility');Auto=$true;BackupPath=(Join-Path $root 'repeat-backup')}
+    Assert (@($again.Results|Where-Object Status -eq AlreadyCompliant).Count -eq 3 -and -not (Test-Path (Join-Path $root 'repeat-backup/before.jsonl'))) 'Second Configure makes no native writes.'
+    Assert ((ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingSnapshot)) -ceq (ConvertTo-WelaPsLoggingKey $configured)) 'Repeated configuration preserves complete observed state.'
+    $nonce='WELA_PS_LOG_'+[guid]::NewGuid().ToString('N');$workerPath=Join-Path $root ('worker-'+[guid]::NewGuid().ToString('N')+'.ps1')
+    $workerText="Microsoft.PowerShell.Utility\Write-Output -InputObject '$nonce'`n"
+    [IO.File]::WriteAllText($workerPath,$workerText,[Text.UTF8Encoding]::new($false));Save 'worker-source.json' @{Path=$workerPath;Sha256=(Get-FileHash $workerPath -Algorithm SHA256).Hash;Text=$workerText;Nonce=$nonce}
+    $latest=Get-WinEvent -LogName 'Microsoft-Windows-PowerShell/Operational' -MaxEvents 1 -ErrorAction Stop;try{$watermark=[long]$latest.RecordId}finally{$latest.Dispose()}
+    $process=Child 'event-worker' $configured.Engine.Path @('-NoLogo','-NoProfile','-NonInteractive','-File',$workerPath)
+    Assert ($process.ExitCode -eq 0 -and $process.Output.Trim() -ceq $nonce) 'Fixed native Windows PowerShell child executed the benign marker.'
+    $selected=@{};$candidates=@();$timer=[Diagnostics.Stopwatch]::StartNew()
+    do{
+        $candidates=@(ReadEvents $process.Pid $watermark);$selected=@{}
+        foreach($xml in $candidates){
+            $settings=[Xml.XmlReaderSettings]::new();$settings.DtdProcessing=[Xml.DtdProcessing]::Prohibit;$settings.XmlResolver=$null;$settings.MaxCharactersInDocument=262144;$xmlReader=[Xml.XmlReader]::Create([IO.StringReader]::new($xml),$settings)
+            try{$doc=[Xml.XmlDocument]::new();$doc.XmlResolver=$null;$doc.PreserveWhitespace=$true;$doc.Load($xmlReader)}finally{$xmlReader.Dispose()};$ns=[Xml.XmlNamespaceManager]::new($doc.NameTable);$ns.AddNamespace('e','http://schemas.microsoft.com/win/2004/08/events/event');$system=$doc.SelectSingleNode('/e:Event/e:System',$ns);$data=@{}
+            foreach($node in $doc.SelectNodes('/e:Event/e:EventData/e:Data',$ns)){if($data.ContainsKey($node.GetAttribute('Name'))){throw 'Duplicate native event field.'};$data[$node.GetAttribute('Name')]=$node.InnerText}
+            $id=[int]$system.SelectSingleNode('e:EventID',$ns).InnerText
+            if($system.SelectSingleNode('e:Provider',$ns).GetAttribute('Name') -cne 'Microsoft-Windows-PowerShell' -or $system.SelectSingleNode('e:Provider',$ns).GetAttribute('Guid').Trim('{}') -ine 'a0c1853b-5c40-4b15-8766-3cf1c58f985a' -or [int]$system.SelectSingleNode('e:Execution',$ns).GetAttribute('ProcessID') -ne $process.Pid -or $system.SelectSingleNode('e:Channel',$ns).InnerText -cne 'Microsoft-Windows-PowerShell/Operational' -or $system.SelectSingleNode('e:Computer',$ns).InnerText -ine $env:COMPUTERNAME){continue}
+            $time=[DateTimeOffset]::Parse($system.SelectSingleNode('e:TimeCreated',$ns).GetAttribute('SystemTime')).UtcDateTime;if($time -lt [DateTimeOffset]::Parse($process.StartedUtc).UtcDateTime -or $time -gt [DateTimeOffset]::Parse($process.ExitedUtc).UtcDateTime){continue}
+            if($system.SelectSingleNode('e:Security',$ns).GetAttribute('UserID') -cne $original.Operator.Sid){continue}
+            if($id -eq 4104 -and $data.ScriptBlockText -ceq $workerText -and $data.Path -ieq $workerPath -and $data.MessageNumber -ceq '1' -and $data.MessageTotal -ceq '1' -and $data.ScriptBlockId -match '^[0-9a-f-]{36}$'){$selected['4104']=@($selected['4104'])+ $xml}
+            if($id -eq 4103 -and $data.ContainsKey('Payload') -and $data.ContainsKey('ContextInfo') -and $data.Payload.Contains($nonce) -and $data.ContextInfo.Contains($workerPath)){$selected['4103']=@($selected['4103'])+ $xml}
+        }
+        if(@($selected['4103']|Where-Object {$_}).Count -eq 1 -and @($selected['4104']|Where-Object {$_}).Count -eq 1){break};Start-Sleep -Milliseconds 200
+    }while($timer.Elapsed.TotalSeconds -lt 15)
+    Save 'event-candidates.json' $candidates
+    foreach($id in @('4103','4104')){$events=@($selected[$id]|Where-Object {$_});Assert ($events.Count -eq 1) "Exactly one worker-attributed native $id event required; found $($events.Count).";[IO.File]::WriteAllText((Join-Path $root ('event-'+$id+'.xml')),$events[0],[Text.UTF8Encoding]::new($false))}
+    Assert ((ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingSnapshot)) -ceq (ConvertTo-WelaPsLoggingKey $configured)) 'Fresh event probe changes no policy or channel state.'
+    Assert ((Masks) -ceq $masks) 'All 59 audit masks remain unchanged.'
+    # Wrong-type selected value is refused by the public command without repairing it.
+    $base=[Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine,[Microsoft.Win32.RegistryView]::Registry64);$key=$null
+    try{$key=$base.OpenSubKey('SOFTWARE\Policies\Microsoft\Windows\PowerShell\ScriptBlockLogging',$true);$key.SetValue('EnableScriptBlockLogging','1',[Microsoft.Win32.RegistryValueKind]::String)}finally{if($key){$key.Dispose()};$base.Dispose()}
+    $wrong=Get-WelaPsLoggingSnapshot;$refused=Public wrong-type @{PowerShellLoggingAction='Configure';PowerShellLoggingControl=@('ScriptBlock');Auto=$true;BackupPath=(Join-Path $root 'wrong-backup')} 1
+    Assert ($refused.ExitCode -eq 1 -and -not (Test-Path (Join-Path $root 'wrong-backup'))) 'Wrong-type preflight refuses before backup or writes.'
+    Assert ((ConvertTo-WelaPsLoggingKey (Get-WelaPsLoggingSnapshot)) -ceq (ConvertTo-WelaPsLoggingKey $wrong)) 'Refusal preserves the typed wrong value.'
+}catch{$failure=$_.ToString();Save 'failure.json' @{Error=$failure;Stack=$_.ScriptStackTrace}}
+finally{
+    if($original -and $mutationStarted){
+        foreach($item in @(@('ScriptBlockLogging','EnableScriptBlockLogging'),@('ModuleLogging','EnableModuleLogging'),@('ModuleLogging\ModuleNames','Microsoft.PowerShell.Utility'))){try{RestoreValue $original.Machine $item[0] $item[1]}catch{$cleanupErrors+=$_.ToString()}}
+        try{RemoveCreatedKeys $original.Machine}catch{$cleanupErrors+=$_.ToString()}
+        try{$after=Get-WelaPsLoggingSnapshot;Save 'cleanup-after.json' $after;if((ConvertTo-WelaPsLoggingKey $after) -cne (ConvertTo-WelaPsLoggingKey $original)){$cleanupErrors+='Full policy/host/source/channel snapshot did not restore exactly.'};if($masks -and (Masks) -cne $masks){$cleanupErrors+='Audit masks changed.'}}catch{$cleanupErrors+=$_.ToString()}
+    }
+    Save 'cleanup.json' @{Status=$(if($cleanupErrors.Count){'Failed'}elseif($mutationStarted){'Restored'}else{'NotMutated'});Errors=$cleanupErrors;OriginalCaptured=[bool]$original;MutationStarted=$mutationStarted;All59MasksUnchanged=($masks -and (Masks) -ceq $masks)}
+    $artifacts=@(Get-ChildItem -LiteralPath $root -File -Recurse|ForEach-Object{[pscustomobject]@{Path=$_.FullName.Substring($root.Length+1);Sha256=(Get-FileHash $_.FullName -Algorithm SHA256).Hash.ToLowerInvariant()}})
+    Save 'manifest.json' @{Kind='WelaPowerShellLoggingNativeFixture';Head=$env:GITHUB_SHA;Engine=$PSVersionTable.PSVersion.ToString();Assertions=$script:count;Failure=$failure;CleanupErrors=$cleanupErrors;ReadyRuleCredit=0;Artifacts=$artifacts}
+}
+if($failure -or $cleanupErrors.Count){throw "Native fixture failed: $failure Cleanup: $($cleanupErrors -join '; ')"}
+Write-Host "PASS: $script:count public PowerShell policy/native4103/native4104 assertions with exact cleanup."
@@ -11,6 +11,8 @@

 - 組み込みの Security 4688 コマンドライン記録ポリシーのみを扱う `process-commandline` の Audit/Plan/Configure を追加しました。変更前の型付き状態、競合検出、監査の前提条件の分離、Windows 上の設定とイベント検証に対応します。#364、#365、#387 に関連します。

+- Windows PowerShell 5.1 のモジュール／スクリプトブロック監査を明示的に選択する `powershell-logging` Audit/Plan/Configure を追加しました。モジュール名、事前の記録容量、型付き変更前記録、観測したポリシーの変化と再読取を確認し、呼出しログ・転写・Core設定・既存モジュール一覧を保持します。Server 2022/2025 の破棄可能なテストで正確な 4103/4104 と復元を要求し、PowerShell 7 のフォールバック、管理ポリシーの継続性、転送、Sigma 対応は別途検証します。(関連 #364, #366, #387) (@Shirofune-Security)
+
 - WMI の明示的な継承設定に、既存の子名前空間の上限付き調査、完全な変更前記録、ツリー変更の拒否を追加しました。親の SACL のみを書き込み、継承・保護状態と最終状態を確認します。不完全な伝播は失敗として扱い、子への直接書き込み、自動復元、イベントや Sigma 対応を保証しません。無関係な引数や余分な位置引数も拒否します。(Related #372) (@Shirofune-Security)

 - 追加が証明された親名前空間のみの明示的な監査ACEを1つ削除する `wmi-sacl-recovery` の Plan/Recover を追加しました。完了済み設定の整合する記録、現在の完全な記述子、レビュー済みハッシュ、監査縮小への明示的同意を必須とし、他の記述子情報・ACE・トークン権限を保持します。部分書き込みの証跡と所有する実機名前空間の後始末を検証し、過去の名前空間・操作者の同一性やイベント・Sigmaの準備完了は保証しません。 (関連 #372, #365) (@Shirofune-Security)
@@ -11,6 +11,8 @@

 - Added `process-commandline` Audit/Plan/Configure for only the built-in Security 4688 command-line policy, with typed originals, drift checks, separate audit prerequisites and native Windows configuration/event validation. Related to #364, #365 and #387.

+- Added explicit `powershell-logging` Audit/Plan/Configure for selected Windows PowerShell 5.1 module and script-block logging. Reviewed module names, preflight inventory-capacity checks, typed original journals, full observed-policy drift guards and native readback preserve invocation/transcription/Core settings and other module entries. Disposable Server 2022/2025 tests require exact local 4103/4104 evidence and policy cleanup; PowerShell 7 fallback, managed-host persistence, forwarding and Sigma readiness remain separate. (Related #364, #366, #387) (@Shirofune-Security)
+
 - Added bounded existing-descendant snapshots, full recovery evidence and stale-tree guards for explicit WMI inheritance. Parent-only SACL writes now require native inherited/protected readbacks and final drift checks; incomplete propagation fails without child setters, rollback ownership, event or Sigma credit. Unrelated or extra positional WMI command arguments are now refused. (Related #372) (@Shirofune-Security)

 - Add reviewed `wmi-sacl-recovery` Plan/Recover for one proven explicit parent-only namespace audit ACE. Require matching completed configuration evidence, current full descriptor, reviewed hash and explicit audit-reduction consent; preserve all other descriptor fields, remaining ACEs and token privileges, retain partial-write evidence, and test owned native namespace cleanup. Historical namespace/operator identity and event/Sigma readiness remain unclaimed. (Related #372, #365) (@Shirofune-Security)