bump pointer: internal (D-384 released: installer 2.9, bootstrap MSI 1.4.0, docs, web, MCP)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

.github/scripts/Assert-HostsFromRegistry.ps1

@@ -0,0 +1,84 @@
+<#
+.SYNOPSIS
+    Fails when a workflow or a CI helper spells out a host instead of reading Get-Endpoints.ps1.
+
+.DESCRIPTION
+    The CI counterpart of the URL-registry guard tests (HardcodedUrlGuardTests,
+    hardcodedUrls.guard.test.ts, hardcoded-urls.guard.test.ts). Enforced: every host the registry
+    defines -- derived from it, so the list cannot fall behind -- plus any Azure storage, App Service
+    or autopilotmonitor.com host, so a new or misspelled account is caught as well.
+
+    Scans .github/workflows/*.yml and .github/scripts/*.ps1 except the registry itself. Comment lines
+    and PowerShell block comments do not count: comments may cite URLs.
+
+.PARAMETER Root
+    Repository root to scan. Defaults to the parent of .github/scripts.
+#>
+[CmdletBinding()]
+param(
+    [string]$Root
+)
+
+$ErrorActionPreference = 'Stop'
+
+if (-not $Root) {
+    $Root = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
+}
+
+$endpoints = & (Join-Path $PSScriptRoot 'Get-Endpoints.ps1')
+$registryHosts = $endpoints.Values | ForEach-Object { ([uri]$_).Host } | Sort-Object -Unique
+$patterns = @($registryHosts | ForEach-Object { [regex]::Escape($_) }) + @(
+    '[a-z0-9-]+\.(blob|table|queue|file)\.core\.windows\.net'
+    '[a-z0-9-]+\.azurewebsites\.net'
+    '([a-z0-9-]+\.)*autopilotmonitor\.com'
+)
+$hostPattern = [regex]::new('(' + ($patterns -join '|') + ')', 'IgnoreCase')
+
+$files = @(
+    Get-ChildItem -Path (Join-Path $Root '.github/workflows') -File -Filter '*.yml'
+    Get-ChildItem -Path (Join-Path $Root '.github/workflows') -File -Filter '*.yaml'
+    Get-ChildItem -Path (Join-Path $Root '.github/scripts') -File -Filter '*.ps1' |
+        Where-Object Name -ne 'Get-Endpoints.ps1'
+)
+
+$findings = 0
+foreach ($file in $files) {
+    $relative = [System.IO.Path]::GetRelativePath($Root, $file.FullName) -replace '\\', '/'
+    $isPowerShell = $file.Extension -eq '.ps1'
+    $inBlock = $false
+    $lineNumber = 0
+    foreach ($line in [System.IO.File]::ReadAllLines($file.FullName)) {
+        $lineNumber++
+        $code = $line
+        if ($isPowerShell) {
+            if ($inBlock) {
+                $end = $code.IndexOf('#>')
+                if ($end -lt 0) { continue }
+                $code = $code.Substring($end + 2)
+                $inBlock = $false
+            }
+            $start = $code.IndexOf('<#')
+            if ($start -ge 0) {
+                $end = $code.IndexOf('#>', $start + 2)
+                if ($end -lt 0) {
+                    $code = $code.Substring(0, $start)
+                    $inBlock = $true
+                } else {
+                    $code = $code.Remove($start, $end + 2 - $start)
+                }
+            }
+        }
+        if ($code.TrimStart().StartsWith('#')) { continue }
+
+        $match = $hostPattern.Match($code)
+        if ($match.Success) {
+            Write-Host "::error file=$relative,line=$lineNumber::$($match.Value) is spelled out here -- take it from .github/scripts/Get-Endpoints.ps1."
+            $findings++
+        }
+    }
+}
+
+if ($findings -gt 0) {
+    throw "$findings host literal(s) outside the endpoint registry."
+}
+Write-Host "No host literal outside .github/scripts/Get-Endpoints.ps1 ($($files.Count) files scanned)."

.github/scripts/Get-Endpoints.ps1

@@ -0,0 +1,72 @@
+<#
+.SYNOPSIS
+    The one place the workflows and the release scripts take their hosts from.
+
+.DESCRIPTION
+    CI's member of the URL registry (Shared Constants.cs, web lib/config.ts, MCP src/config.ts):
+    every own host the workflows and the .github/scripts helpers talk to, plus the Authenticode
+    timestamp server, is defined here once. Assert-HostsFromRegistry.ps1 (Workflow gates) fails
+    on any of these hosts spelled out elsewhere under .github/.
+
+    The storage URLs derive from the account name, so blob and table can never point at two
+    different accounts.
+
+    A file in the repository rather than a GitHub variable: the helpers read it themselves, so
+    they behave the same in every job and in a local run, and bearer tokens are sent to these
+    URLs -- where a token goes stays a reviewed line in git.
+
+.PARAMETER ExportToGitHubEnv
+    Write every entry to $GITHUB_ENV instead of returning it, so the following steps of the job
+    read them as environment variables ($env:AGENT_CONTAINER_URL, ${{ env.AGENT_CONTAINER_URL }}).
+
+.OUTPUTS
+    [ordered] hashtable, keyed by the names the environment variables carry.
+
+.EXAMPLE
+    $endpoints = & "$PSScriptRoot/Get-Endpoints.ps1"
+    Invoke-WebRequest -Uri "$($endpoints.AGENT_CONTAINER_URL)/version.json"
+#>
+[CmdletBinding()]
+param(
+    [switch]$ExportToGitHubEnv
+)
+
+$ErrorActionPreference = 'Stop'
+
+$storageAccount = 'autopilotmonitoreu'
+# Pre-migration account in another tenant; only the fail-soft legacy mirror still writes there.
+$legacyStorageAccount = 'autopilotmonitor'
+
+$blob  = "https://$storageAccount.blob.core.windows.net"
+$table = "https://$storageAccount.table.core.windows.net"
+
+$endpoints = [ordered]@{
+    STORAGE_BLOB_URL           = $blob
+    STORAGE_TABLE_URL          = $table
+    AGENT_CONTAINER_URL        = "$blob/agent"
+    VERSIONS_CONTAINER_URL     = "$blob/versions"
+    STATS_CONTAINER_URL        = "$blob/stats"
+    # Platform settings row; CI writes only its agent and bootstrap version columns.
+    ADMIN_CONFIG_URL           = "$table/AdminConfiguration(PartitionKey='GlobalConfig',RowKey='config')"
+    LEGACY_AGENT_CONTAINER_URL = "https://$legacyStorageAccount.blob.core.windows.net/agent"
+    # Front Door in front of the agent container: what customer scripts download from.
+    DOWNLOAD_ALIAS_URL         = 'https://download.autopilotmonitor.com/agent'
+    API_BASE_URL               = 'https://autopilotmonitor-api-eu.azurewebsites.net'
+    MCP_BASE_URL               = 'https://mcp.autopilotmonitor.com'
+    PORTAL_BASE_URL            = 'https://portal.autopilotmonitor.com'
+    WWW_BASE_URL               = 'https://www.autopilotmonitor.com'
+    DOCS_BASE_URL              = 'https://docs.autopilotmonitor.com'
+    CODE_SIGN_TIMESTAMP_URL    = 'http://timestamp.acs.microsoft.com'
+}
+
+if ($ExportToGitHubEnv) {
+    if ([string]::IsNullOrWhiteSpace($env:GITHUB_ENV)) {
+        throw '-ExportToGitHubEnv only works inside a GitHub Actions step.'
+    }
+    $endpoints.GetEnumerator() | ForEach-Object { "$($_.Key)=$($_.Value)" } |
+        Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+    $endpoints.GetEnumerator() | ForEach-Object { Write-Host "$($_.Key) = $($_.Value)" }
+    return
+}
+
+return $endpoints

.github/scripts/Get-StorageAuthHeaders.ps1

@@ -9,8 +9,8 @@
     live here so they cannot drift between call sites.
 
     Identity comes from whatever `az login` established: the federated GitHub OIDC principal
-    in CI (azure/login, subject repo:okieselbach/AutopilotMonitor:ref:refs/heads/main), the
-    operator's own account for the local build. No secret is read, stored or passed around.
+    in CI (azure/login in a job of the `production` or `release` environment), the operator's
+    own account when a helper runs locally. No secret is read, stored or passed around.
     Under GitHub Actions the token is masked in the run log before it is returned.
 
     x-ms-version is MANDATORY here, not decoration: Entra-authorized requests are rejected

.github/scripts/Invoke-BootstrapSystemPass.ps1

@@ -0,0 +1,72 @@
+<#
+.SYNOPSIS
+    Runs the bootstrap integration tests once as SYSTEM, the account the bootstrap runs as on a device.
+
+.DESCRIPTION
+    Registers a one-time scheduled task as SYSTEM that runs
+    scripts/Bootstrap/Bootstrap.Integration.Tests.ps1 under Windows PowerShell 5.1, waits for it,
+    prints its output and fails when the run did not happen as SYSTEM or a test failed. Run as
+    SYSTEM, the tests use the real folder permissions, including Administrators as owner.
+
+    CI only (bootstrap-script-gates.yml): it needs an elevated runner and Pester installed for all
+    users.
+#>
+[CmdletBinding()]
+param(
+    [string]$RepoRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path,
+    [int]$TimeoutMinutes = 20
+)
+
+$ErrorActionPreference = 'Stop'
+
+$work = Join-Path ([System.IO.Path]::GetTempPath()) "apm-system-pass-$PID"
+New-Item -ItemType Directory -Force -Path $work | Out-Null
+$runner = Join-Path $work 'run.ps1'
+$output = Join-Path $work 'output.txt'
+$result = Join-Path $work 'result.txt'
+$tests = Join-Path $RepoRoot 'scripts\Bootstrap\Bootstrap.Integration.Tests.ps1'
+
+$runnerText = @'
+$ErrorActionPreference = 'Stop'
+$identity = [System.Security.Principal.WindowsIdentity]::GetCurrent().User.Value
+try {
+    Import-Module Pester -MinimumVersion 5.5.0
+    $configuration = New-PesterConfiguration
+    $configuration.Run.Path = '__TESTS__'
+    $configuration.Run.PassThru = $true
+    $configuration.Output.Verbosity = 'Detailed'
+    $run = Invoke-Pester -Configuration $configuration
+    Set-Content -LiteralPath '__RESULT__' -Value ('{0}|{1}|{2}' -f $identity, $run.PassedCount, $run.FailedCount)
+} catch {
+    Set-Content -LiteralPath '__RESULT__' -Value ('{0}|error|{1}' -f $identity, $_.Exception.Message)
+}
+'@
+Set-Content -LiteralPath $runner -Encoding ASCII -Value ($runnerText.Replace('__TESTS__', $tests).Replace('__RESULT__', $result))
+
+$taskName = "apm-bootstrap-system-pass-$PID"
+$arguments = "-NoProfile -ExecutionPolicy Bypass -Command `"& '$runner' *> '$output'`""
+$action = New-ScheduledTaskAction -Execute "$env:SystemRoot\System32\WindowsPowerShell\v1.0\powershell.exe" -Argument $arguments
+$principal = New-ScheduledTaskPrincipal -UserId 'S-1-5-18' -LogonType ServiceAccount -RunLevel Highest
+Register-ScheduledTask -TaskName $taskName -Action $action -Principal $principal -Force | Out-Null
+try {
+    Start-ScheduledTask -TaskName $taskName
+    $deadline = (Get-Date).AddMinutes($TimeoutMinutes)
+    do {
+        Start-Sleep -Seconds 5
+        $state = (Get-ScheduledTask -TaskName $taskName).State
+    } while ($state -eq 'Running' -and (Get-Date) -lt $deadline)
+    if ($state -eq 'Running') {
+        Stop-ScheduledTask -TaskName $taskName
+        throw "The SYSTEM pass did not finish within $TimeoutMinutes minutes."
+    }
+} finally {
+    Unregister-ScheduledTask -TaskName $taskName -Confirm:$false
+}
+
+if (Test-Path -LiteralPath $output) { Get-Content -LiteralPath $output }
+if (-not (Test-Path -LiteralPath $result)) { throw 'The SYSTEM pass wrote no result.' }
+$identity, $passed, $failed = (Get-Content -LiteralPath $result -Raw).Trim().Split('|', 3)
+if ($identity -ne 'S-1-5-18') { throw "The SYSTEM pass ran as $identity, not as SYSTEM." }
+if ($passed -eq 'error') { throw "The SYSTEM pass could not run the tests: $failed" }
+if ([int]$failed -gt 0 -or [int]$passed -eq 0) { throw "SYSTEM pass: $passed passed, $failed failed." }
+Write-Host "SYSTEM pass: $passed passed, 0 failed."

.github/scripts/Publish-BootstrapScripts.ps1

@@ -17,7 +17,7 @@
     cosmetics.
 
     Steps, in order:
-      1. Parse $ScriptVersion from the loader and the bootstrap source.
+      1. Parse the $ScriptVersion line from the loader and the bootstrap source.
       2. Render the -Dev variants by literal substitution of the URL/manifest
          defaults. A missing anchor is a hard failure -- a silently un-substituted
          dev script would point the dev fleet at the stable agent.
@@ -25,17 +25,21 @@
          carries the same $ScriptVersion, abort. Otherwise the docs badge,
          version.json.bootstrapVersion and the portal's "your script is outdated"
          hint would all keep asserting a version that is no longer what ships.
-      4. Build the publish set (loader, bootstrap, both dev renders, the extras).
+      4. Build the publish set: both installers, then both loaders, then the extras.
+         A loader that went live before the installer it requires would refuse the
+         installer still being served. -Channel dev keeps only the two -Dev renders.
       5. Authenticode-sign every script (see -SigningToken). Signing is the LAST
          transformation: it covers the exact CRLF/UTF-8 bytes that get uploaded,
          and nothing may touch them afterwards or the signature breaks.
-      6. Upload every script blob with Cache-Control: no-cache (they rotate in
+      6. Run the loader's own identity check on the exact bytes of both installers:
+         what fails here, every device would refuse.
+      7. Upload every script blob with Cache-Control: no-cache (they rotate in
          place), mirrored fail-soft to the legacy account.
-      7. Reconcile the version oracles: version.json.bootstrapVersion and
-         .loaderVersion (read-modify-write under If-Match, so a concurrent agent
+      8. Reconcile the version oracles (release channel only): version.json.bootstrapVersion
+         and .loaderVersion (read-modify-write under If-Match, so a concurrent agent
          release cannot lose its agent fields) and
          AdminConfiguration.LatestBootstrapV2ScriptVersion.
-      8. Verify through the alias -- re-download each blob and compare SHA-256.
+      9. Verify through the alias -- re-download each blob and compare SHA-256.
 
     Comparisons against a published script always strip its signature block first
     (Get-ComparableText). A signature carries a timestamp, so signed bytes differ on
@@ -67,6 +71,11 @@
     Optional directory that receives a copy of every published file exactly as uploaded.
     Used by CI to offer the signed scripts as a build artifact for local inspection.
 
+.PARAMETER Channel
+    release (default): every script, plus version.json and the portal's script version.
+    dev: only Start-AutopilotMonitor-Dev.ps1 and Install-AutopilotMonitor-Dev.ps1, so a
+    script change can run on dev devices, signed, before it goes to customers.
+
 .EXAMPLE
     ./Publish-BootstrapScripts.ps1 -DryRun
 
@@ -81,9 +90,10 @@ param(
     [string]$SigningToken,
     [string]$KeyVaultUrl,
     [string]$CertificateName,
-    [string]$TimestampUrl = 'http://timestamp.acs.microsoft.com',
     [string]$ExpectedPublisher,
     [string]$SignedOutputDir,
+    [ValidateSet('release', 'dev')]
+    [string]$Channel = 'release',
     [switch]$DryRun
 )
 
@@ -93,10 +103,13 @@ if (-not $RepoRoot) {
     $RepoRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
 }
 
-$ContainerUrl       = 'https://autopilotmonitoreu.blob.core.windows.net/agent'
-$LegacyContainerUrl = 'https://autopilotmonitor.blob.core.windows.net/agent'
-$AliasUrl           = 'https://download.autopilotmonitor.com/agent'
-$TableUrl           = "https://autopilotmonitoreu.table.core.windows.net/AdminConfiguration(PartitionKey='GlobalConfig',RowKey='config')"
+# Every host, the timestamp server included, from the one endpoint registry.
+$Endpoints          = & (Join-Path $PSScriptRoot 'Get-Endpoints.ps1')
+$ContainerUrl       = $Endpoints.AGENT_CONTAINER_URL
+$LegacyContainerUrl = $Endpoints.LEGACY_AGENT_CONTAINER_URL
+$AliasUrl           = $Endpoints.DOWNLOAD_ALIAS_URL
+$TableUrl           = $Endpoints.ADMIN_CONFIG_URL
+$TimestampUrl       = $Endpoints.CODE_SIGN_TIMESTAMP_URL
 
 $BootstrapSource   = Join-Path $RepoRoot 'scripts/Bootstrap/Install-AutopilotMonitor.ps1'
 $BootstrapBlob     = 'Install-AutopilotMonitor.ps1'
@@ -210,7 +223,7 @@ function Set-PublishSetSignature {
         --timestamp-rfc3161 $TimestampUrl `
         --file-digest sha256 `
         --description 'Autopilot Monitor bootstrap' `
-        --description-url 'https://www.autopilotmonitor.com' `
+        --description-url $Endpoints.WWW_BASE_URL `
         $paths
 
     # Native tool: PowerShell does not throw on a non-zero exit, and an unnoticed signing
@@ -291,7 +304,9 @@ function Assert-VersionBump {
 
 function Get-BootstrapScriptVersion {
     param([string]$Content, [string]$Origin, [switch]$Optional)
-    if ($Content -match '\$ScriptVersion\s*=\s*"([\d\.\-a-zA-Z]+)"') { return $Matches[1] }
+    # The assignment line itself, as the loader reads it: a comment or help text that mentions
+    # $ScriptVersion must not count.
+    if ($Content -match '(?m)^\$ScriptVersion[ \t]*=[ \t]*"([\d\.\-a-zA-Z]+)"[ \t]*\r?$') { return $Matches[1] }
     # Unreadable SOURCE is fatal. An unreadable PUBLISHED copy must not be: that is exactly
     # the state a republish is meant to repair, and a guard that blocks the repair is worse
     # than no guard.
@@ -299,6 +314,19 @@ function Get-BootstrapScriptVersion {
     throw "Could not parse ScriptVersion from $Origin"
 }
 
+# The loader's own check, run on the exact bytes that will be served: dot-sourced in this
+# function's scope, so none of the loader's variables reach the publisher's.
+function Assert-LoaderAcceptsInstaller {
+    param([object]$Item, [string]$WorkDir)
+    New-Item -ItemType Directory -Force -Path $WorkDir | Out-Null
+    $path = Join-Path $WorkDir $Item.BlobName
+    [System.IO.File]::WriteAllBytes($path, [byte[]]$Item.Bytes)
+    . $LoaderSource
+    if (-not (Test-InstallerIdentity -Path $path)) {
+        throw "The loader would refuse $($Item.BlobName) (role or minimum version). Nothing was uploaded."
+    }
+}
+
 # What the script actually DOES, with comments and layout removed: the PowerShell token
 # stream minus comments, newlines and line continuations. Lets the version-bump guard tell
 # a behaviour change (must be versioned -- consumers act on the version) apart from a
@@ -327,8 +355,10 @@ $loaderVersion = Get-BootstrapScriptVersion -Content $loaderContent -Origin $Loa
 Write-Host "Loader script version: $loaderVersion"
 
 # ------------------------------------------------------------------ 2. dev render
-$stableUrlLiteral = '$AgentDownloadUrl = "https://download.autopilotmonitor.com/agent/AutopilotMonitor-Agent.zip"'
-$devUrlLiteral    = '$AgentDownloadUrl = "https://download.autopilotmonitor.com/agent/AutopilotMonitor-Agent-dev.zip"'
+# The anchors are the customer scripts' own text, built from the alias in the registry. Should
+# the alias ever move, the scripts have to move with it -- until they do, the render stops here.
+$stableUrlLiteral = '$AgentDownloadUrl = "' + $AliasUrl + '/AutopilotMonitor-Agent.zip"'
+$devUrlLiteral    = '$AgentDownloadUrl = "' + $AliasUrl + '/AutopilotMonitor-Agent-dev.zip"'
 $stableManLiteral = '$VersionJsonName = "version.json"'
 $devManLiteral    = '$VersionJsonName = "version-dev.json"'
 
@@ -339,8 +369,8 @@ $devContent = $sourceContent.Replace($stableUrlLiteral, $devUrlLiteral).Replace(
 Write-Host "Rendered $DevBlob (dev agent URL + version-dev.json)"
 
 # The dev loader must fetch the dev bootstrap, or a dev device would run the stable chain.
-$stableLoaderLiteral = '$BootstrapUrl = "https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor.ps1"'
-$devLoaderLiteral    = '$BootstrapUrl = "https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor-Dev.ps1"'
+$stableLoaderLiteral = '$BootstrapUrl = "' + $AliasUrl + '/Install-AutopilotMonitor.ps1"'
+$devLoaderLiteral    = '$BootstrapUrl = "' + $AliasUrl + '/Install-AutopilotMonitor-Dev.ps1"'
 
 if ($loaderContent.IndexOf($stableLoaderLiteral) -lt 0) {
     throw "Loader dev-render: anchor literal missing in $LoaderSource"
@@ -349,8 +379,11 @@ $devLoaderContent = $loaderContent.Replace($stableLoaderLiteral, $devLoaderLiter
 Write-Host "Rendered $LoaderDevBlob (points at $DevBlob)"
 
 # ------------------------------------------------------------------ 3. bump guards
-Assert-VersionBump -BlobName $BootstrapBlob -SourceContent $sourceContent -SourceOrigin $BootstrapSource -SourceVersion $scriptVersion
-Assert-VersionBump -BlobName $LoaderBlob    -SourceContent $loaderContent -SourceOrigin $LoaderSource    -SourceVersion $loaderVersion
+# The versions are what customers act on, so the guard watches the release blobs only.
+if ($Channel -eq 'release') {
+    Assert-VersionBump -BlobName $BootstrapBlob -SourceContent $sourceContent -SourceOrigin $BootstrapSource -SourceVersion $scriptVersion
+    Assert-VersionBump -BlobName $LoaderBlob    -SourceContent $loaderContent -SourceOrigin $LoaderSource    -SourceVersion $loaderVersion
+}
 
 # ------------------------------------------------------------------ 4. publish set
 # Sources beyond the bootstrap pair, read straight from the repo.
@@ -365,10 +398,15 @@ $extraSources = @(
 # Text is the unsigned publish form and stays the reference for every comparison against a
 # published copy; Bytes is what goes on the wire and carries the signature after step 4.
 $publishSet = [System.Collections.Generic.List[object]]::new()
-$publishSet.Add([pscustomobject]@{ BlobName = $LoaderBlob;    Text = $loaderContent;    Bytes = (Get-PublishBytes $loaderContent) })
-$publishSet.Add([pscustomobject]@{ BlobName = $LoaderDevBlob; Text = $devLoaderContent; Bytes = (Get-PublishBytes $devLoaderContent) })
 $publishSet.Add([pscustomobject]@{ BlobName = $BootstrapBlob; Text = $sourceContent;    Bytes = $sourceBytes })
 $publishSet.Add([pscustomobject]@{ BlobName = $DevBlob;       Text = $devContent;       Bytes = (Get-PublishBytes $devContent) })
+$publishSet.Add([pscustomobject]@{ BlobName = $LoaderBlob;    Text = $loaderContent;    Bytes = (Get-PublishBytes $loaderContent) })
+$publishSet.Add([pscustomobject]@{ BlobName = $LoaderDevBlob; Text = $devLoaderContent; Bytes = (Get-PublishBytes $devLoaderContent) })
+if ($Channel -eq 'dev') {
+    $publishSet = [System.Collections.Generic.List[object]]@($publishSet | Where-Object { $_.BlobName -in @($DevBlob, $LoaderDevBlob) })
+    $extraSources = @()
+    Write-Host "Channel dev: publishing $DevBlob and $LoaderDevBlob only"
+}
 foreach ($extra in $extraSources) {
     $extraPath = Join-Path $RepoRoot $extra.Path
     if (-not (Test-Path $extraPath)) {
@@ -387,13 +425,18 @@ if ($SigningEnabled) {
     Write-Host '::warning::No signing token supplied -- dry run continues with unsigned scripts.'
 }
 
+# ------------------------------------------------------------------ 6. loader check
+foreach ($item in @($publishSet | Where-Object { $_.BlobName -in @($BootstrapBlob, $DevBlob) })) {
+    Assert-LoaderAcceptsInstaller -Item $item -WorkDir (Join-Path ([System.IO.Path]::GetTempPath()) "apm-publish-check-$PID")
+}
+
 $legacySas = if ($LegacySasToken) { $LegacySasToken.TrimStart('?') } else { '' }
 
 # Acquired lazily: a dry run must stay runnable without any Azure login -- the PR gate
 # (bootstrap-script-gates.yml) executes this script with -DryRun and never logs in.
 $authHeaders = if ($DryRun) { $null } else { & (Join-Path $PSScriptRoot 'Get-StorageAuthHeaders.ps1') }
 
-# ------------------------------------------------------------------ 6. upload
+# ------------------------------------------------------------------ 7. upload
 foreach ($item in $publishSet) {
     # Explicit type, not a convenience: an Object[] body is uploaded as space-separated
     # decimals rather than raw bytes, and every hash check still passes because [byte[]]
@@ -460,11 +503,12 @@ foreach ($item in $publishSet) {
     }
 }
 
-# ------------------------------------------------------------------ 7. version oracles
+# ------------------------------------------------------------------ 8. version oracles
 # version.json is the agent manifest; only bootstrapVersion belongs to us. Read from the
 # blob (not the alias) for an authoritative ETag, write back under If-Match so a concurrent
-# agent release cannot lose its version/sha256 fields.
-if (-not $DryRun) {
+# agent release cannot lose its version/sha256 fields. They describe the release scripts, so
+# a dev publish leaves them alone.
+if (-not $DryRun -and $Channel -eq 'release') {
     try {
         $manifestResp = Invoke-WebRequest -Uri "$ContainerUrl/version.json" -Method Get -UseBasicParsing
         $manifestRaw = if ($manifestResp.Content -is [byte[]]) {
@@ -508,7 +552,9 @@ if (-not $DryRun) {
     }
 }
 
-if ($DryRun) {
+if ($Channel -ne 'release') {
+    Write-Host "Channel dev: version.json and AdminConfiguration.LatestBootstrapV2ScriptVersion stay as they are"
+} elseif ($DryRun) {
     Write-Host "  [dry-run] would set AdminConfiguration.LatestBootstrapV2ScriptVersion = $scriptVersion"
 } else {
     $tableHeaders = @{
@@ -521,7 +567,7 @@ if ($DryRun) {
     Write-Host "AdminConfiguration.LatestBootstrapV2ScriptVersion = $scriptVersion"
 }
 
-# ------------------------------------------------------------------ 8. verify via alias
+# ------------------------------------------------------------------ 9. verify via alias
 if (-not $DryRun) {
     $pending = [System.Collections.ArrayList]::new()
     $publishSet | ForEach-Object { [void]$pending.Add($_) }
@@ -551,7 +597,7 @@ if (-not $DryRun) {
 if ($env:GITHUB_STEP_SUMMARY) {
     $mode = if ($DryRun) { 'DRY RUN -- nothing uploaded' } else { 'published + verified via the download alias' }
     $summary = @(
-        "### Bootstrap scripts: $mode",
+        "### Bootstrap scripts: $mode (channel $Channel)",
         '',
         "Loader script version: **$loaderVersion** | Bootstrap script version: **$scriptVersion**",
         "Signed: **$(if ($SigningEnabled) { "yes, certificate '$CertificateName'" } else { 'NO (unsigned dry run)' })**",

.github/scripts/Test-BootstrapAttacker.ps1

@@ -0,0 +1,176 @@
+<#
+.SYNOPSIS
+    Checks the bootstrap's folders against a real standard user.
+
+.DESCRIPTION
+    Creates a temporary local standard user and, with that user's token, tries what any local user
+    on an enrolling device could try against the folders the loader and the installer create:
+    write, change, rename and delete files, add entries, move or delete the folder. Every attempt
+    must be denied. Folders the user creates first, or entries the user plants in an unprotected
+    agent folder of an older installer, must make the installer stop instead of installing into
+    them. A control attempt proves the user can write where users may.
+
+    The folders come from the installer's own functions, in a scratch copy of ProgramData that
+    carries the real ProgramData permissions.
+
+    CI only (bootstrap-script-gates.yml): it needs an elevated runner, and it creates a local
+    account and removes it again.
+#>
+[CmdletBinding()]
+param(
+    [string]$RepoRoot = (Resolve-Path (Join-Path $PSScriptRoot '../..')).Path
+)
+
+$ErrorActionPreference = 'Stop'
+
+# The user's token, for impersonation in this process (a CI helper; customer scripts never
+# compile code).
+Add-Type -Namespace ApmCi -Name Native -MemberDefinition @'
+[DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
+public static extern bool LogonUser(string user, string domain, string password, int logonType, int logonProvider, out Microsoft.Win32.SafeHandles.SafeAccessTokenHandle token);
+'@
+
+. (Join-Path $RepoRoot 'scripts\Bootstrap\Install-AutopilotMonitor.ps1')
+
+$results = New-Object System.Collections.Generic.List[object]
+
+function Invoke-AsUser {
+    param([scriptblock]$Action)
+    [System.Security.Principal.WindowsIdentity]::RunImpersonated($script:token, [Action]$Action)
+}
+
+# An attempt the user must not get through: it has to fail with "access denied", not with
+# any other error that would only hide a broken test.
+function Assert-Denied {
+    param([string]$Name, [scriptblock]$Attempt)
+    $outcome = 'allowed'
+    try {
+        Invoke-AsUser $Attempt
+    } catch {
+        $base = $_.Exception.GetBaseException()
+        $outcome = if ($base -is [System.UnauthorizedAccessException] -or $base.HResult -eq -2147024891) { 'denied' } else { "error: $($base.Message)" }
+    }
+    $results.Add([pscustomobject]@{ Check = $Name; Expected = 'denied'; Actual = $outcome })
+}
+
+function Assert-That {
+    param([string]$Name, [bool]$Condition, [string]$Detail = '')
+    $results.Add([pscustomobject]@{ Check = $Name; Expected = 'true'; Actual = $(if ($Condition) { 'true' } else { "false $Detail".Trim() }) })
+}
+
+# What a bootstrap running as SYSTEM leaves as owner; the default for other admin-created
+# entries differs between Windows editions.
+function Set-AdministratorsOwner {
+    param([string]$Path)
+    $security = (Get-Item -LiteralPath $Path -Force).GetAccessControl('Owner')
+    $security.SetOwner((New-Object System.Security.Principal.SecurityIdentifier('S-1-5-32-544')))
+    (Get-Item -LiteralPath $Path -Force).SetAccessControl($security)
+}
+
+$name = 'apm-ci-' + [guid]::NewGuid().ToString('N').Substring(0, 8)
+$password = [guid]::NewGuid().ToString('N') + 'Aa1!'
+$root = Join-Path $env:SystemDrive ('apm-ci-' + [guid]::NewGuid().ToString('N').Substring(0, 8))
+$pd = Join-Path $root 'ProgramData'
+
+New-LocalUser -Name $name -Password (ConvertTo-SecureString $password -AsPlainText -Force) -AccountNeverExpires -PasswordNeverExpires | Out-Null
+try {
+    try { Add-LocalGroupMember -SID 'S-1-5-32-545' -Member $name } catch { if ($_.FullyQualifiedErrorId -notlike 'MemberExists*') { throw } }
+    $token = $null
+    # Interactive logon first (what a local user has); network logon where a server allows no
+    # local logon for Users.
+    if (-not [ApmCi.Native]::LogonUser($name, '.', $password, 2, 0, [ref]$token) -and
+        -not [ApmCi.Native]::LogonUser($name, '.', $password, 3, 0, [ref]$token)) {
+        throw "LogonUser failed with Win32 error $([System.Runtime.InteropServices.Marshal]::GetLastWin32Error())."
+    }
+    $script:token = $token
+    $userSid = (New-Object System.Security.Principal.NTAccount($name)).Translate([System.Security.Principal.SecurityIdentifier])
+    $script:probe = $null
+    Invoke-AsUser { $script:probe = [System.Security.Principal.WindowsIdentity]::GetCurrent() }
+    Assert-That 'impersonation runs as the test user' ($script:probe.User -eq $userSid) "$($script:probe.User)"
+    Assert-That 'the test user is no administrator' (-not (New-Object System.Security.Principal.WindowsPrincipal($script:probe)).IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator))
+
+    # A scratch ProgramData with the real one's permissions.
+    New-Item -ItemType Directory -Path $pd -Force | Out-Null
+    $security = New-Object System.Security.AccessControl.DirectorySecurity
+    $security.SetSecurityDescriptorSddlForm((Get-Acl -LiteralPath $env:ProgramData).GetSecurityDescriptorSddlForm('Access'), 'Access')
+    # Nothing from the drive root, whose default lets authenticated users change subfolders.
+    $security.SetAccessRuleProtection($true, $false)
+    (Get-Item -LiteralPath $pd).SetAccessControl($security)
+
+    # Control: the user may create in ProgramData, so every denial below is the folders' doing.
+    $control = Join-Path $pd 'user-may-create-here'
+    Invoke-AsUser { [System.IO.Directory]::CreateDirectory($control) | Out-Null; [System.IO.File]::WriteAllText((Join-Path $control 'x.txt'), 'x') }
+    Assert-That 'control: the user can create in ProgramData' (Test-Path -LiteralPath (Join-Path $control 'x.txt'))
+
+    # The loader's run folder with a downloaded installer in it.
+    $run = New-RunFolder -Parent $pd -Prefix 'AutopilotMonitor-Loader-'
+    $download = Join-Path $run 'Install-AutopilotMonitor.ps1'
+    [System.IO.File]::WriteAllText($download, 'verified installer')
+    Assert-Denied 'run folder: add a file' { [System.IO.File]::WriteAllText((Join-Path $run 'planted.ps1'), 'x') }
+    Assert-Denied 'run folder: add a folder or link' { [System.IO.Directory]::CreateDirectory((Join-Path $run 'planted')) | Out-Null }
+    Assert-Denied 'run folder: change the download' { [System.IO.File]::AppendAllText($download, 'tampered') }
+    Assert-Denied 'run folder: replace the download' { [System.IO.File]::WriteAllText($download, 'replaced') }
+    Assert-Denied 'run folder: rename the download' { [System.IO.File]::Move($download, $download + '.old') }
+    Assert-Denied 'run folder: delete the download' { [System.IO.File]::Delete($download) }
+    Assert-Denied 'run folder: rename the folder' { [System.IO.Directory]::Move($run, $run + '-moved') }
+    Assert-Denied 'run folder: delete the folder' { [System.IO.Directory]::Delete($run, $true) }
+    Assert-That 'run folder: the download is unchanged' ([System.IO.File]::ReadAllText($download) -eq 'verified installer')
+
+    # The agent folder an install prepares.
+    $base = Join-Path $pd 'AutopilotMonitor'
+    Initialize-AgentBase -Path $base
+    $logs = [System.IO.Directory]::CreateDirectory((Join-Path $base 'Logs')).FullName
+    [System.IO.File]::WriteAllText((Join-Path $logs 'bootstrap-script.log'), 'log')
+    Assert-Denied 'agent folder: add a file' { [System.IO.File]::WriteAllText((Join-Path $base 'planted.dll'), 'x') }
+    Assert-Denied 'agent folder: add a folder or link' { [System.IO.Directory]::CreateDirectory((Join-Path $base 'Agent')) | Out-Null }
+    Assert-Denied 'agent folder: change a log' { [System.IO.File]::AppendAllText((Join-Path $logs 'bootstrap-script.log'), 'x') }
+    Assert-Denied 'agent folder: delete a log' { [System.IO.File]::Delete((Join-Path $logs 'bootstrap-script.log')) }
+    Assert-Denied 'agent folder: rename the folder' { [System.IO.Directory]::Move($base, $base + '-moved') }
+    $owner = (Get-Item -LiteralPath $base).GetAccessControl('Owner').GetOwner([System.Security.Principal.SecurityIdentifier]).Value
+    Assert-That 'agent folder: owned by Administrators' ($owner -eq 'S-1-5-32-544') $owner
+    [System.IO.Directory]::Delete($base, $true)
+
+    # The user creates the agent folder first: the installer must neither install into it nor
+    # remove it.
+    Invoke-AsUser { [System.IO.Directory]::CreateDirectory($base) | Out-Null; [System.IO.File]::WriteAllText((Join-Path $base 'planted.dll'), 'x') }
+    Assert-That 'squatted agent folder: seen as another account''s' ((Get-FolderState $base) -eq 'Foreign')
+    $refused = $false
+    try { Initialize-AgentBase -Path $base } catch { $refused = $_.Exception.Message -like '*(Foreign); not installing into it.' }
+    Assert-That 'squatted agent folder: the install refuses it' $refused
+    Assert-That 'squatted agent folder: a skip leaves it' ((Remove-AgentBaseOnSkip -Path $base) -like '*left as it is (Foreign).')
+    Assert-That 'squatted agent folder: the planted file stays' (Test-Path -LiteralPath (Join-Path $base 'planted.dll'))
+    [System.IO.Directory]::Delete($base, $true)
+
+    # An agent folder an older installer created without protection: the user plants a file,
+    # the install protects the folder and stops at the planted file.
+    [System.IO.Directory]::CreateDirectory($base) | Out-Null
+    [System.IO.File]::WriteAllText((Join-Path $base 'old-installer.log'), 'old')
+    Set-AdministratorsOwner $base
+    Set-AdministratorsOwner (Join-Path $base 'old-installer.log')
+    Invoke-AsUser { [System.IO.File]::WriteAllText((Join-Path $base 'planted.dll'), 'x') }
+    $refused = $false
+    try { Initialize-AgentBase -Path $base } catch { $refused = $_.Exception.Message -like '*holds entries another account created*' }
+    Assert-That 'planted entry: the install stops' $refused
+    Assert-That 'planted entry: own leftovers are gone, the planted file stays' ((-not (Test-Path -LiteralPath (Join-Path $base 'old-installer.log'))) -and (Test-Path -LiteralPath (Join-Path $base 'planted.dll')))
+    Assert-Denied 'planted entry: the protected folder takes no more' { [System.IO.File]::WriteAllText((Join-Path $base 'second.dll'), 'x') }
+    [System.IO.Directory]::Delete($base, $true)
+
+    # The user creates a run folder name first: it is never used.
+    $squatted = Join-Path $pd 'AutopilotMonitor-Loader-00000000'
+    Invoke-AsUser { [System.IO.Directory]::CreateDirectory($squatted) | Out-Null }
+    $script:names = [System.Collections.Generic.Queue[string]]::new([string[]]@('00000000', '11111111'))
+    function New-RunFolderName { return $script:names.Dequeue() }
+    $fresh = New-RunFolder -Parent $pd -Prefix 'AutopilotMonitor-Loader-'
+    Assert-That 'squatted run folder: a new name is drawn' ($fresh -eq (Join-Path $pd 'AutopilotMonitor-Loader-11111111')) $fresh
+    $squattedOwner = (Get-Item -LiteralPath $squatted).GetAccessControl('Owner').GetOwner([System.Security.Principal.SecurityIdentifier])
+    Assert-That 'squatted run folder: still the user''s, untouched' ($squattedOwner -eq $userSid)
+} finally {
+    if ($script:token) { $script:token.Dispose() }
+    Remove-LocalUser -Name $name -ErrorAction SilentlyContinue
+    if (Test-Path -LiteralPath $root) { Remove-Item -LiteralPath $root -Recurse -Force -ErrorAction SilentlyContinue }
+}
+
+$results | Format-Table -AutoSize | Out-String -Width 200 | Write-Host
+$failed = @($results | Where-Object { $_.Actual -ne $_.Expected })
+if ($failed.Count -gt 0) { throw "Attacker test: $($failed.Count) of $($results.Count) checks failed." }
+Write-Host "Attacker test: all $($results.Count) checks passed."

.github/workflows/action-pins.yml

@@ -1,12 +1,15 @@
 name: Workflow gates
 
-# Two checks over the workflow files themselves:
+# Three checks over the workflow files and their helper scripts:
 #   * verify-pins -- every third-party action is referenced by a full commit SHA plus a
 #                    version comment (stricter than zizmor's unpinned-uses audit).
 #   * zizmor      -- static analysis of every workflow (permissions, credential
 #                    persistence, template injection, ...). Configuration and the
 #                    reasoned ignores live in zizmor.yml at the repository root; the
 #                    same run is expected locally before a workflow change is committed.
+#   * hosts       -- no workflow or .github/scripts helper spells out a host; every one
+#                    comes from .github/scripts/Get-Endpoints.ps1, CI's member of the URL
+#                    registry (the C#, web and MCP registries have guard tests of their own).
 #
 # Every third-party action must be referenced by a full commit SHA, never by a tag.
 # Tags are mutable: whoever controls an action repository can repoint v4 at new code,
@@ -34,10 +37,10 @@ name: Workflow gates
 on:
   push:
     branches: [main]
-    paths: ['.github/workflows/**', '.github/dependabot.yml', 'zizmor.yml']
+    paths: ['.github/workflows/**', '.github/scripts/**', '.github/dependabot.yml', 'zizmor.yml']
   pull_request:
     branches: [main]
-    paths: ['.github/workflows/**', '.github/dependabot.yml', 'zizmor.yml']
+    paths: ['.github/workflows/**', '.github/scripts/**', '.github/dependabot.yml', 'zizmor.yml']
   workflow_dispatch:
 
 permissions:
@@ -106,3 +109,17 @@ jobs:
         with:
           version: 1.30.1
           min-severity: low
+
+  hosts:
+    name: Hosts only from the endpoint registry
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      # The enforced host list is derived from the registry itself, plus every Azure storage,
+      # App Service and autopilotmonitor.com host, so it cannot fall behind a new entry.
+      - name: No host literal outside .github/scripts/Get-Endpoints.ps1
+        shell: pwsh
+        run: ./.github/scripts/Assert-HostsFromRegistry.ps1

.github/workflows/bootstrap-script-gates.yml

@@ -15,21 +15,28 @@ permissions:
 
 jobs:
   gates:
-    name: Bootstrap guard tests (PS 5.1)
-    runs-on: windows-latest
+    name: Bootstrap guard tests (PS 5.1, ${{ matrix.os }})
+    strategy:
+      fail-fast: false
+      matrix:
+        # Folder permissions and Windows PowerShell 5.1 come with the OS, so both server images.
+        os: [windows-2022, windows-2025]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
 
+      # For all users: the SYSTEM pass below runs Pester as SYSTEM.
       - name: Install Pester 5+
         shell: powershell
         run: |
-          Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force -Scope CurrentUser | Out-Null
-          Install-Module Pester -Scope CurrentUser -Force -SkipPublisherCheck -MinimumVersion 5.5.0
+          Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force -Scope AllUsers | Out-Null
+          Install-Module Pester -Scope AllUsers -Force -SkipPublisherCheck -MinimumVersion 5.5.0
 
       # Windows PowerShell 5.1 on purpose: that is the runtime IME uses to execute
       # platform scripts, so guard/relax logic is verified without resetting a device.
+      # The runner is elevated, so the integration tests use the real folder permissions.
       - name: Run Pester
         shell: powershell
         run: |
@@ -40,11 +47,20 @@ jobs:
           $c.Output.Verbosity = 'Detailed'
           Invoke-Pester -Configuration $c
 
+      # On a device the bootstrap runs as SYSTEM: the integration tests once more as SYSTEM.
+      - name: Integration tests as SYSTEM
+        shell: powershell
+        run: ./.github/scripts/Invoke-BootstrapSystemPass.ps1
+
+      - name: Folder permissions against a real standard user
+        shell: powershell
+        run: ./.github/scripts/Test-BootstrapAttacker.ps1
+
       - name: Guard scripts stay pure ASCII
         shell: powershell
         run: |
           $failed = $false
-          Get-ChildItem 'scripts/Bootstrap' -Filter '*.ps1' | ForEach-Object {
+          Get-ChildItem 'scripts/Bootstrap' -Filter '*.ps1' -Recurse | ForEach-Object {
             $bytes = [System.IO.File]::ReadAllBytes($_.FullName)
             for ($i = 0; $i -lt $bytes.Length; $i++) {
               if ($bytes[$i] -gt 127) {
@@ -57,6 +73,15 @@ jobs:
           if ($failed) { exit 1 }
           Write-Host 'All bootstrap scripts are pure ASCII.'
 
+      - uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
+        with:
+          dotnet-version: '10.0.x'
+
+      # The names and log lines the scripts share with the agent, checked against the agent's
+      # own code.
+      - name: Script contracts with the agent
+        run: dotnet test src/Agent/AutopilotMonitor.Agent.V2.Core.Tests --configuration Release --filter "Category=BootstrapContract" --logger "console;verbosity=normal"
+
       # The publish chain renders the -Dev variant by literal substitution and refuses to
       # ship when an anchor moved. Running it dry here surfaces that (and any drift against
       # the alias) on the PR instead of on the push that would have published.

.github/workflows/build-agent.yml

@@ -7,6 +7,14 @@ on:
         description: 'Build number override (leave empty to auto-increment from buildcounter.txt)'
         required: false
         type: string
+      channel:
+        description: 'release = versioned line (+ stable on cutover). dev = lab channel only (Agent-v2-dev.zip, version-v2-dev.json, Agent-dev.zip, version-dev.json); needs publish_as_stable=false and create_release=false'
+        required: true
+        type: choice
+        options:
+          - release
+          - dev
+        default: release
       upload_blob:
         description: 'Upload to versioned namespace (Agent-v2.zip + version-v2.json)'
         required: true
@@ -32,10 +40,11 @@ on:
         required: false
         type: string
 
+# Every job states its own permissions. This default is what the build job runs with: it
+# executes third-party code (MSBuild targets, analyzers, test frameworks) and must never hold
+# more than a read-only token.
 permissions:
-  contents: write
-  id-token: write      # keyless Sigstore signing (artifact attestation)
-  attestations: write  # store the provenance attestation
+  contents: read
 
 # Shared with publish-scripts.yml: both write version.json (this workflow the agent fields,
 # the script publisher bootstrapVersion under If-Match). Serialising them keeps a script push
@@ -48,7 +57,9 @@ env:
   LINE_MAJOR: 2
   AGENT_PROJECT: src/Agent/AutopilotMonitor.Agent.V2/AutopilotMonitor.Agent.V2.csproj
   DIALOG_PROJECT: src/Agent/AutopilotMonitor.SummaryDialog/AutopilotMonitor.SummaryDialog.csproj
-  TEST_PROJECT: src/Agent/AutopilotMonitor.DecisionCore.Tests/AutopilotMonitor.DecisionCore.Tests.csproj
+  DECISIONCORE_TEST_PROJECT: src/Agent/AutopilotMonitor.DecisionCore.Tests/AutopilotMonitor.DecisionCore.Tests.csproj
+  CORE_TEST_PROJECT: src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/AutopilotMonitor.Agent.V2.Core.Tests.csproj
+  DIALOG_TEST_PROJECT: src/Agent/AutopilotMonitor.SummaryDialog.Tests/AutopilotMonitor.SummaryDialog.Tests.csproj
   CSPROJ_PATH: src/Agent/AutopilotMonitor.Agent.V2/AutopilotMonitor.Agent.V2.csproj
   BOOTSTRAP_SOURCE: scripts/Bootstrap/Install-AutopilotMonitor.ps1
   AGENT_OUTPUT: src/Agent/AutopilotMonitor.Agent.V2/bin/Release/net48
@@ -57,18 +68,37 @@ env:
   VERSIONED_ZIP: AutopilotMonitor-Agent-v2.zip
   STABLE_ZIP: AutopilotMonitor-Agent.zip
   STABLE_MANIFEST: version.json
-  # Authenticode via Azure Key Vault; identity and vault come from repository variables.
+  # Lab channel (channel=dev): the names the dev renders of the bootstrap scripts read.
+  CHANNEL: ${{ inputs.channel }}
+  DEV_VERSIONED_ZIP: AutopilotMonitor-Agent-v2-dev.zip
+  DEV_MANIFEST: version-v2-dev.json
+  DEV_STABLE_ZIP: AutopilotMonitor-Agent-dev.zip
+  DEV_STABLE_MANIFEST: version-dev.json
+  # Signed catalog over every other file of the payload. Must equal
+  # Constants.AgentPayloadCatalogFileName; CodeSigningParityTests keeps them in step.
+  PAYLOAD_CATALOG: AutopilotMonitor.Agent.cat
+  # Authenticode via Azure Key Vault; identity and vault come from repository variables, the
+  # timestamp server (CODE_SIGN_TIMESTAMP_URL) from the endpoint registry like every host here.
   # CODE_SIGN_EXPECTED_SUBJECT is optional and pins the publisher in the verify step.
   CODE_SIGN_CLIENT_ID: ${{ vars.CODE_SIGN_CLIENT_ID }}
   CODE_SIGN_CERTIFICATE_NAME: ${{ vars.CODE_SIGN_CERTIFICATE_NAME }}
   CODE_SIGN_KEY_VAULT_URL: ${{ vars.CODE_SIGN_KEY_VAULT_URL }}
   CODE_SIGN_EXPECTED_SUBJECT: ${{ vars.CODE_SIGN_EXPECTED_SUBJECT }}
-  CODE_SIGN_TIMESTAMP_URL: http://timestamp.acs.microsoft.com
 
 jobs:
-  build:
-    runs-on: windows-latest
-    name: Build Agent
+  # Runs only this repository's scripts. The deploy identity trusts the `production`
+  # environment, which admits main only.
+  reserve:
+    name: Reserve build number
+    runs-on: ubuntu-latest
+    environment: production
+    permissions:
+      contents: read
+      id-token: write   # OIDC federated login for the counter write
+    outputs:
+      build_number: ${{ steps.version.outputs.build_number }}
+      version: ${{ steps.version.outputs.version }}
+      tag: ${{ steps.version.outputs.tag }}
 
     steps:
       - name: Checkout repository
@@ -76,6 +106,11 @@ jobs:
         with:
           persist-credentials: false
 
+      # Every host in this workflow comes from the one endpoint registry.
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
       # Every released build is signed; a missing variable stops the run before a build
       # number is burnt.
       - name: Check code-signing configuration
@@ -88,33 +123,22 @@ jobs:
           }
           Write-Host "Code-signing configuration present (certificate '$env:CODE_SIGN_CERTIFICATE_NAME')"
 
-      # Logs in FIRST and only to fetch the Key Vault token: azure/login sets the default az
-      # account, so the storage login below has to be the last one. Both federated credentials
-      # are bound to the ref, so this job must never be given an `environment:` -- that would
-      # change the OIDC subject claim and break both logins.
-      - name: Login to Azure (code-signing identity)
-        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
-        with:
-          client-id: ${{ env.CODE_SIGN_CLIENT_ID }}
-          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
-          allow-no-subscriptions: true
-
-      - name: Acquire Key Vault token for signing
+      # The dev channel is a lab channel: it never touches stable, AdminConfiguration, the
+      # bootstrap scripts or a GitHub Release. Refused here, before a build number is burnt.
+      - name: Check channel inputs
         shell: pwsh
+        env:
+          PUBLISH_AS_STABLE: ${{ inputs.publish_as_stable }}
+          CREATE_RELEASE: ${{ inputs.create_release }}
         run: |
-          $ErrorActionPreference = 'Stop'
-          $token = az account get-access-token --scope https://vault.azure.net/.default --query accessToken --output tsv
-          if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($token)) {
-            throw "Could not acquire a Key Vault token for the code-signing identity."
+          if ($env:CHANNEL -notin @('release', 'dev')) {
+            throw "Unknown channel '$($env:CHANNEL)'."
           }
-          Write-Host "::add-mask::$token"
-          "CODE_SIGN_AKV_ACCESS_TOKEN=$token" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          if ($env:CHANNEL -eq 'dev' -and ($env:PUBLISH_AS_STABLE -eq 'true' -or $env:CREATE_RELEASE -eq 'true')) {
+            throw "channel=dev publishes the lab channel only: run it with publish_as_stable=false and create_release=false."
+          }
+          Write-Host "Channel: $env:CHANNEL"
 
-      # Every storage write below (counter blob, agent ZIP, manifests, AdminConfiguration)
-      # is authorized by this federated identity -- no SAS secret. One login covers the whole
-      # job: the federated credential is bound to the ref, and a release run takes ~2 minutes,
-      # well inside the token lifetime. Only the legacy mirror still needs a SAS: that account
-      # lives in the pre-migration tenant, where this principal has no identity.
       - name: Login to Azure (OIDC)
         uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
         with:
@@ -122,18 +146,6 @@ jobs:
           tenant-id: ${{ secrets.AZURE_TENANT_ID }}
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
-      # SDK 10 = single build toolchain (parity with local build.ps1 / global.json).
-      - name: Setup .NET
-        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
-        with:
-          dotnet-version: '10.0.x'
-
-      # Version pinned; roll-forward because the tool targets an older runtime than the SDK above.
-      - name: Install AzureSignTool
-        env:
-          DOTNET_ROLL_FORWARD: LatestMajor
-        run: dotnet tool install --no-cache --global AzureSignTool --version 7.0.1
-
       # Build numbers come from the shared counter blob -- one counter and one
       # implementation for CI and the local build (.github/scripts/Request-BuildNumber.ps1).
       # Reserve-before-build with ETag-CAS: concurrent builds can never mint the same
@@ -155,7 +167,7 @@ jobs:
             $override = [int]$env:BUILD_NUMBER_OVERRIDE
           }
 
-          $counterUrl = "https://autopilotmonitoreu.blob.core.windows.net/agent/buildcounter-v$($env:LINE_MAJOR).txt"
+          $counterUrl = "$env:AGENT_CONTAINER_URL/buildcounter-v$($env:LINE_MAJOR).txt"
           $buildNumber = & ./.github/scripts/Request-BuildNumber.ps1 -CounterUrl $counterUrl -Override $override
 
           $csproj = Get-Content $env:CSPROJ_PATH -Raw
@@ -172,22 +184,169 @@ jobs:
           "version=$version" >> $env:GITHUB_OUTPUT
           "tag=v$version" >> $env:GITHUB_OUTPUT
 
+  # Build zone: no login, no secret, no id-token. Its only output is the artifact; the
+  # release job treats that as data and never builds.
+  build:
+    name: Build and test
+    needs: reserve
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      # SDK 10 = single build toolchain (parity with local build.ps1 / global.json).
+      - name: Setup .NET
+        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
+        with:
+          dotnet-version: '10.0.x'
+
       - name: Restore dependencies
         run: |
           dotnet restore ${{ env.AGENT_PROJECT }}
           dotnet restore ${{ env.DIALOG_PROJECT }}
-          dotnet restore ${{ env.TEST_PROJECT }}
+          dotnet restore ${{ env.DECISIONCORE_TEST_PROJECT }}
+          dotnet restore ${{ env.CORE_TEST_PROJECT }}
+          dotnet restore ${{ env.DIALOG_TEST_PROJECT }}
+
+      # Every agent suite runs before the release build. ORDER AND BUILD_NUMBER ARE LOAD-BEARING:
+      # Agent.V2.Core.Tests references the agent exe, so the test build compiles it. With the
+      # reserved number it stamps the release version and the Build Agent step is up to date; run
+      # after that step or without the number, it would rewrite the binaries with another version.
+      - name: Run agent tests (all suites)
+        shell: pwsh
+        env:
+          BUILD_NUMBER: ${{ needs.reserve.outputs.build_number }}
+        run: |
+          foreach ($project in @($env:DECISIONCORE_TEST_PROJECT, $env:CORE_TEST_PROJECT, $env:DIALOG_TEST_PROJECT)) {
+            dotnet test $project --configuration Release --no-restore --verbosity quiet
+            if ($LASTEXITCODE -ne 0) { throw "Tests failed: $project" }
+          }
 
       - name: Build Agent
         run: dotnet build ${{ env.AGENT_PROJECT }} --configuration Release --no-restore
         env:
-          BUILD_NUMBER: ${{ steps.version.outputs.build_number }}
+          BUILD_NUMBER: ${{ needs.reserve.outputs.build_number }}
 
       - name: Build SummaryDialog
         run: dotnet build ${{ env.DIALOG_PROJECT }} --configuration Release --no-restore
 
-      - name: Run Agent unit tests
-        run: dotnet test ${{ env.TEST_PROJECT }} --configuration Release --no-restore --verbosity quiet
+      # One archive per output folder, unsigned. ZipFile rather than Compress-Archive, which
+      # skips hidden files.
+      - name: Package build output
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          Add-Type -AssemblyName System.IO.Compression.FileSystem
+          $outDir = Join-Path $env:RUNNER_TEMP 'agent-unsigned'
+          New-Item -Path $outDir -ItemType Directory -Force | Out-Null
+          [System.IO.Compression.ZipFile]::CreateFromDirectory((Join-Path $env:GITHUB_WORKSPACE $env:AGENT_OUTPUT), (Join-Path $outDir 'agent.zip'))
+          [System.IO.Compression.ZipFile]::CreateFromDirectory((Join-Path $env:GITHUB_WORKSPACE $env:DIALOG_OUTPUT), (Join-Path $outDir 'dialog.zip'))
+          Get-ChildItem $outDir | ForEach-Object { Write-Host "$($_.Name): $([math]::Round($_.Length / 1MB, 2)) MB" }
+
+      - name: Upload unsigned build output
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: agent-unsigned
+          path: ${{ runner.temp }}/agent-unsigned
+          if-no-files-found: error
+          retention-days: 1
+
+  # Trust zone: only this repository's scripts, pinned actions and the pinned signing tool
+  # run here -- never a restore or build. The build output arrives as data. The runner
+  # image's Windows SDK signtool is used read-only, to verify third-party signatures.
+  #
+  # Runs in the `release` environment: both identities trust its subject, and it admits main
+  # only. No federated credential trusts the ref, so a job without an environment can neither
+  # sign nor write storage, whatever its permissions say.
+  release:
+    name: Sign and publish
+    needs: [reserve, build]
+    runs-on: windows-latest
+    environment: release
+    permissions:
+      contents: write      # tag + GitHub Release
+      id-token: write      # code-signing and storage logins, keyless Sigstore signing
+      attestations: write  # store the provenance attestation
+    env:
+      AGENT_VERSION: ${{ needs.reserve.outputs.version }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      # Storage, legacy mirror, docs link, timestamp server: all from the endpoint registry.
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
+      - name: Download unsigned build output
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: agent-unsigned
+          path: ${{ runner.temp }}/agent-unsigned
+
+      # Only the two expected archives, each into its own fresh output folder; the .NET
+      # extractor refuses entries that would land outside it. Never unpack into the checkout
+      # root: an archive could otherwise replace the scripts this job runs below.
+      - name: Unpack build output
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          Add-Type -AssemblyName System.IO.Compression.FileSystem
+          foreach ($pair in @(@('agent.zip', $env:AGENT_OUTPUT), @('dialog.zip', $env:DIALOG_OUTPUT))) {
+            $archive = Join-Path $env:RUNNER_TEMP "agent-unsigned/$($pair[0])"
+            $target = Join-Path $env:GITHUB_WORKSPACE $pair[1]
+            if (Test-Path $target) { throw "$($pair[1]) already exists -- refusing to unpack over it." }
+            [System.IO.Compression.ZipFile]::ExtractToDirectory($archive, $target)
+            Write-Host "Unpacked $($pair[0]) into $($pair[1])"
+          }
+
+      # Logs in FIRST and only to fetch the Key Vault token: azure/login sets the default az
+      # account, so the storage login below has to be the last one.
+      - name: Login to Azure (code-signing identity)
+        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
+        with:
+          client-id: ${{ env.CODE_SIGN_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          allow-no-subscriptions: true
+
+      - name: Acquire Key Vault token for signing
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $token = az account get-access-token --scope https://vault.azure.net/.default --query accessToken --output tsv
+          if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($token)) {
+            throw "Could not acquire a Key Vault token for the code-signing identity."
+          }
+          Write-Host "::add-mask::$token"
+          "CODE_SIGN_AKV_ACCESS_TOKEN=$token" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+
+      # Every storage write below (agent ZIP, manifests, AdminConfiguration) is authorized by
+      # this federated identity -- no SAS secret. Only the legacy mirror still needs a SAS:
+      # that account lives in the pre-migration tenant, where this principal has no identity.
+      - name: Login to Azure (OIDC)
+        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
+        with:
+          client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+
+      # Runtime for AzureSignTool only; nothing is built in this job.
+      - name: Setup .NET
+        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
+        with:
+          dotnet-version: '10.0.x'
+
+      # Version pinned; roll-forward because the tool targets an older runtime than the SDK above.
+      - name: Install AzureSignTool
+        env:
+          DOTNET_ROLL_FORWARD: LatestMajor
+        run: dotnet tool install --no-cache --global AzureSignTool --version 7.0.1
 
       # Authenticode over everything we author; third-party assemblies keep their own signature.
       #
@@ -223,18 +382,17 @@ jobs:
             --timestamp-rfc3161 "$env:CODE_SIGN_TIMESTAMP_URL" `
             --file-digest sha256 `
             --description "Autopilot Monitor Agent" `
-            --description-url "https://www.autopilotmonitor.com" `
+            --description-url "$env:WWW_BASE_URL" `
             ($targets | ForEach-Object { $_.FullName })
 
           if ($LASTEXITCODE -ne 0) {
             throw "azuresigntool failed with exit code $LASTEXITCODE -- aborting before anything is published."
           }
 
-      - name: Create release artifact
-        id: artifact
+      - name: Stage release payload
         shell: pwsh
         run: |
-          $version = "${{ steps.version.outputs.version }}"
+          $version = $env:AGENT_VERSION
           $stagingDir = "staging/agent"
 
           if (-not (Test-Path "$env:AGENT_OUTPUT/AutopilotMonitor.Agent.exe")) {
@@ -276,6 +434,98 @@ jobs:
           }
           Write-Host "Version check passed: EXE = manifest = reserved = $version"
 
+      # Third-party code enters the payload only with its vendor's own signature: every PE that
+      # is not ours needs a valid EMBEDDED Authenticode signature from an allowed vendor. Embedded
+      # only (signtool verify /pa, no /a): Get-AuthenticodeSignature prefers the runner's Windows
+      # catalogs and reports "Microsoft Windows" for files Windows happens to ship as well. An
+      # unsigned file or a new vendor stops the release until a person decides. This guards the
+      # bytes we did not write; a build that alters our own code is D-346's remaining risk.
+      - name: Check third-party signatures
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $allowedVendors = @('Microsoft Corporation', 'Json.NET (.NET Foundation)')
+
+          $signtool = Get-ChildItem "${env:ProgramFiles(x86)}\Windows Kits\10\bin\*\x64\signtool.exe" -ErrorAction SilentlyContinue |
+            Where-Object { $_.Directory.Parent.Name -match '^\d+(\.\d+){1,3}$' } |
+            Sort-Object { [version]$_.Directory.Parent.Name } -Descending |
+            Select-Object -First 1
+          if (-not $signtool) { throw "signtool.exe not found in the runner image's Windows SDK." }
+          Write-Host "Using $($signtool.FullName)"
+
+          $failed = $false
+          $checked = 0
+          foreach ($file in Get-ChildItem -Path 'staging/agent' -Recurse -File) {
+            # A PE by content (MZ header), not by extension.
+            $head = [byte[]]::new(2)
+            $stream = [System.IO.File]::OpenRead($file.FullName)
+            try { $read = $stream.Read($head, 0, 2) } finally { $stream.Dispose() }
+            if ($read -lt 2 -or $head[0] -ne 0x4D -or $head[1] -ne 0x5A) { continue }
+            if ($file.Name -like 'AutopilotMonitor.*') { continue }   # ours: the verify step pins them
+
+            $checked++
+            $output = & $signtool.FullName verify /pa $file.FullName 2>&1
+            if ($LASTEXITCODE -ne 0) {
+              Write-Host "::error file=$($file.Name)::No valid embedded vendor signature. $(($output | Out-String).Trim())"
+              $failed = $true
+              continue
+            }
+            $subject = [System.Security.Cryptography.X509Certificates.X509Certificate]::CreateFromSignedFile($file.FullName).Subject
+            $vendor = if ($subject -match '(?:^|,\s*)O=("[^"]*"|[^,]*)') { $Matches[1].Trim('"') } else { '' }
+            if ($vendor -notin $allowedVendors) {
+              Write-Host "::error file=$($file.Name)::Signed by '$subject' -- vendor '$vendor' is not on the allowlist."
+              $failed = $true
+              continue
+            }
+            Write-Host "$($file.Name): embedded signature valid, vendor $vendor"
+          }
+
+          if ($failed) { throw "Third-party signature check failed. Nothing was published." }
+          Write-Host "All $checked third-party PE files carry a valid signature from an allowed vendor."
+
+      # The payload contract: one catalog, signed like our binaries, holding the SHA-256 of every
+      # other file in the ZIP. Installer, OOBE script and self-updater accept a payload only when
+      # this catalog is ours and matches the extracted files exactly. Created AFTER signing and
+      # BEFORE the ZIP -- the same load-bearing position as the signing step above.
+      - name: Create and sign payload catalog
+        shell: pwsh
+        env:
+          DOTNET_ROLL_FORWARD: LatestMajor
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $stagingDir = 'staging/agent'
+          $catalog = Join-Path $env:RUNNER_TEMP $env:PAYLOAD_CATALOG
+          if (Test-Path (Join-Path $stagingDir $env:PAYLOAD_CATALOG)) {
+            throw "$stagingDir already contains $env:PAYLOAD_CATALOG."
+          }
+
+          New-FileCatalog -Path $stagingDir -CatalogFilePath $catalog -CatalogVersion 2.0 | Out-Null
+
+          & azuresigntool.exe sign --verbose `
+            --azure-key-vault-url "$env:CODE_SIGN_KEY_VAULT_URL" `
+            --azure-key-vault-accesstoken "$env:CODE_SIGN_AKV_ACCESS_TOKEN" `
+            --azure-key-vault-certificate "$env:CODE_SIGN_CERTIFICATE_NAME" `
+            --timestamp-rfc3161 "$env:CODE_SIGN_TIMESTAMP_URL" `
+            --file-digest sha256 `
+            --description "Autopilot Monitor Agent" `
+            --description-url "$env:WWW_BASE_URL" `
+            $catalog
+          if ($LASTEXITCODE -ne 0) {
+            throw "azuresigntool failed on the payload catalog with exit code $LASTEXITCODE -- aborting before anything is published."
+          }
+
+          Copy-Item -Path $catalog -Destination $stagingDir
+          $count = (Test-FileCatalog -Path $stagingDir -CatalogFilePath $catalog -FilesToSkip $env:PAYLOAD_CATALOG -Detailed).CatalogItems.Count
+          Write-Host "Payload catalog signed: $count files"
+
+      - name: Create release artifact
+        id: artifact
+        shell: pwsh
+        run: |
+          $version = $env:AGENT_VERSION
+          $stagingDir = "staging/agent"
+          $manifest = Get-Content "$env:AGENT_OUTPUT/$env:MANIFEST_NAME" -Raw | ConvertFrom-Json
+
           $versionedZip = "AutopilotMonitor-Agent-v$version.zip"
           Compress-Archive -Path "$stagingDir/*" -DestinationPath $versionedZip
           Write-Host "Created GitHub-Release artifact: $versionedZip"
@@ -365,17 +615,66 @@ jobs:
           }
           Write-Host "All $($files.Count) binaries signed with certificate $($thumbprints.Keys -join ', ')"
 
+      # The devices' check, run on the FINAL ZIP rather than the staging folder: whatever the
+      # archiver did (Compress-Archive skips hidden files) fails here instead of on a device.
+      # Windows PowerShell 5.1 and the installer's own functions (dot-sourced; its entry guard
+      # keeps that side-effect free) -- the very code the installer and the OOBE go-script run.
+      - name: Verify payload catalog (device check)
+        shell: powershell
+        env:
+          RELEASE_ZIP: ${{ steps.artifact.outputs.versioned_zip_release }}
+        run: |
+          $ErrorActionPreference = 'Stop'
+          Add-Type -AssemblyName System.IO.Compression.FileSystem
+
+          $payload = Join-Path $env:RUNNER_TEMP 'verify-payload'
+          if (Test-Path $payload) { throw "$payload already exists." }
+          [System.IO.Compression.ZipFile]::ExtractToDirectory((Resolve-Path $env:RELEASE_ZIP).Path, $payload)
+
+          . (Resolve-Path $env:BOOTSTRAP_SOURCE).Path
+          if (-not [string]::IsNullOrWhiteSpace($env:CODE_SIGN_EXPECTED_SUBJECT) -and $ExpectedPublisher -ne $env:CODE_SIGN_EXPECTED_SUBJECT) {
+            throw "Installer pin '$ExpectedPublisher' differs from CODE_SIGN_EXPECTED_SUBJECT '$env:CODE_SIGN_EXPECTED_SUBJECT'."
+          }
+          if ($AgentCatalogName -ne $env:PAYLOAD_CATALOG) {
+            throw "Installer catalog name '$AgentCatalogName' differs from PAYLOAD_CATALOG '$env:PAYLOAD_CATALOG'."
+          }
+
+          # Assign first, then flatten: the function returns its list as ONE object (comma
+          # operator), so @(Get-AgentPayloadRejections ...) would nest it inside another array.
+          $problems = Get-AgentPayloadRejections -Path $payload -ExpectedPublisher $ExpectedPublisher -CatalogName $AgentCatalogName
+          $problems = @($problems)
+
+          # Release-only checks a device need not repeat: a timestamp (without it the signature
+          # dies with the certificate) and the same certificate as the binaries.
+          $signature = Get-AuthenticodeSignature (Join-Path $payload $AgentCatalogName)
+          if (-not $signature.TimeStamperCertificate) {
+            $problems += 'catalog signature carries no RFC-3161 timestamp -- it would expire with the certificate'
+          }
+          $exeSigner = (Get-AuthenticodeSignature (Join-Path $payload 'AutopilotMonitor.Agent.exe')).SignerCertificate
+          if ($signature.SignerCertificate -and $exeSigner -and $signature.SignerCertificate.Thumbprint -ne $exeSigner.Thumbprint) {
+            $problems += 'catalog and agent exe carry different signing certificates'
+          }
+
+          if ($problems.Count -gt 0) {
+            $problems | ForEach-Object { Write-Host "::error::$_" }
+            throw "Payload catalog verification failed. Nothing was published."
+          }
+          Write-Host "Payload catalog verified on the final ZIP with the installer's own check, signer $($signature.SignerCertificate.Subject)"
+
       - name: Upload to Azure Blob Storage
         if: inputs.upload_blob
         shell: pwsh
+        env:
+          ZIP_SHA256: ${{ steps.artifact.outputs.sha256 }}
+          EXE_SHA256: ${{ steps.artifact.outputs.exe_sha256 }}
         run: |
-          $containerUrl = "https://autopilotmonitoreu.blob.core.windows.net/agent"
+          $containerUrl = $env:AGENT_CONTAINER_URL
           $authHeaders = & ./.github/scripts/Get-StorageAuthHeaders.ps1
           # Legacy mirror (transition until customers moved to the download.-alias):
           # blobs are ALSO pushed to the old account so the bootstrap URL baked into
           # customers' Intune scripts keeps serving current bits. Fail-soft -- a
           # legacy hiccup must never fail a release. Counter lives ONLY on eu.
-          $legacyContainerUrl = "https://autopilotmonitor.blob.core.windows.net/agent"
+          $legacyContainerUrl = $env:LEGACY_AGENT_CONTAINER_URL
           $legacySasToken = "${{ secrets.AZURE_BLOB_AGENT_LEGACY_SAS_TOKEN }}".TrimStart('?')
 
           function Send-Blob {
@@ -405,6 +704,18 @@ jobs:
             }
           }
 
+          # Dev channel: lab blobs only, under the names the dev renders of the bootstrap scripts
+          # read. Nothing else is touched -- no versioned or stable line, no AdminConfiguration, no
+          # scripts; the channel check in `reserve` already refused publish_as_stable/create_release.
+          if ($env:CHANNEL -eq 'dev') {
+            Send-Blob -Local $env:VERSIONED_ZIP -BlobName $env:DEV_VERSIONED_ZIP -ContentType "application/zip"
+            Send-Blob -Local $env:MANIFEST_NAME -BlobName $env:DEV_MANIFEST -ContentType "application/json"
+            Send-Blob -Local $env:VERSIONED_ZIP -BlobName $env:DEV_STABLE_ZIP -ContentType "application/zip"
+            Send-Blob -Local $env:MANIFEST_NAME -BlobName $env:DEV_STABLE_MANIFEST -ContentType "application/json"
+            Write-Host "DEV CHANNEL: lab blobs written, nothing else touched."
+            exit 0
+          }
+
           # Versioned namespace (always)
           Send-Blob -Local $env:VERSIONED_ZIP -BlobName $env:VERSIONED_ZIP -ContentType "application/zip"
           Send-Blob -Local $env:MANIFEST_NAME -BlobName $env:MANIFEST_NAME -ContentType "application/json"
@@ -426,7 +737,6 @@ jobs:
               -SigningToken $env:CODE_SIGN_AKV_ACCESS_TOKEN `
               -KeyVaultUrl $env:CODE_SIGN_KEY_VAULT_URL `
               -CertificateName $env:CODE_SIGN_CERTIFICATE_NAME `
-              -TimestampUrl $env:CODE_SIGN_TIMESTAMP_URL `
               -ExpectedPublisher $env:CODE_SIGN_EXPECTED_SUBJECT
           }
 
@@ -437,10 +747,10 @@ jobs:
           if ('${{ inputs.publish_as_stable }}' -ne 'true') {
             Write-Host "SKIPPED: AdminConfiguration update (versioned-only run -- stable namespace unchanged)"
           } else {
-            $sha256 = "${{ steps.artifact.outputs.sha256 }}"
-            $exeSha256 = "${{ steps.artifact.outputs.exe_sha256 }}"
-            $agentVersion = "${{ steps.version.outputs.version }}"
-            $tableUrl = "https://autopilotmonitoreu.table.core.windows.net/AdminConfiguration(PartitionKey='GlobalConfig',RowKey='config')"
+            $sha256 = $env:ZIP_SHA256
+            $exeSha256 = $env:EXE_SHA256
+            $agentVersion = $env:AGENT_VERSION
+            $tableUrl = $env:ADMIN_CONFIG_URL
             $tableBody = @{
               LatestAgentV2Version    = $agentVersion
               LatestAgentV2Sha256     = $sha256
@@ -474,7 +784,7 @@ jobs:
       - name: Upload build artifact
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
-          name: AutopilotMonitor-Agent-v${{ steps.version.outputs.version }}
+          name: AutopilotMonitor-Agent-v${{ needs.reserve.outputs.version }}
           path: ${{ steps.artifact.outputs.versioned_zip_release }}
 
       - name: Upload version metadata
@@ -497,30 +807,30 @@ jobs:
         shell: pwsh
         env:
           GH_TOKEN: ${{ github.token }}
-          RELEASE_TAG: ${{ steps.version.outputs.tag }}
-          RELEASE_NAME: Autopilot Monitor Agent ${{ steps.version.outputs.version }}
+          RELEASE_TAG: ${{ needs.reserve.outputs.tag }}
+          RELEASE_NAME: Autopilot Monitor Agent ${{ needs.reserve.outputs.version }}
           RELEASE_PRERELEASE: ${{ inputs.prerelease }}
           RELEASE_ZIP: ${{ steps.artifact.outputs.versioned_zip_release }}
           RELEASE_NOTES: ${{ inputs.release_notes }}
           RELEASE_BODY_TAIL: |
             ### Version Info
-            - **Version:** ${{ steps.version.outputs.version }}
-            - **Build Number:** ${{ steps.version.outputs.build_number }}
+            - **Version:** ${{ needs.reserve.outputs.version }}
+            - **Build Number:** ${{ needs.reserve.outputs.build_number }}
             - **SHA-256:** `${{ steps.artifact.outputs.sha256 }}`
             - **Built from:** ${{ github.sha }}
             - **Published as stable:** ${{ inputs.publish_as_stable }}
 
             ### Provenance
-            The executables are Authenticode-signed and timestamped. The ZIP and both executables carry a [GitHub Artifact Attestation](https://github.com/okieselbach/AutopilotMonitor/attestations) (Sigstore keyless). Verify:
+            The executables are Authenticode-signed and timestamped. Every file in the ZIP is listed in `AutopilotMonitor.Agent.cat`, a catalog signed with the same certificate, and third-party libraries carry their vendor's signature. The ZIP and both executables carry a [GitHub Artifact Attestation](https://github.com/okieselbach/AutopilotMonitor/attestations) (Sigstore keyless). Verify:
             ```
-            gh attestation verify AutopilotMonitor-Agent-v${{ steps.version.outputs.version }}.zip --repo okieselbach/AutopilotMonitor
+            gh attestation verify AutopilotMonitor-Agent-v${{ needs.reserve.outputs.version }}.zip --repo okieselbach/AutopilotMonitor
             ```
         run: |
           $ErrorActionPreference = 'Stop'
 
           $notes = "$env:RELEASE_NOTES".Trim()
           if ($notes -eq '') {
-            $notes = "Minor enhancements and bug fixes. See the [Agent Changelog](https://docs.autopilotmonitor.com/changelog/agent-changelog) for details.`n<!-- release-notes: none -->"
+            $notes = "Minor enhancements and bug fixes. See the [Agent Changelog]($env:DOCS_BASE_URL/changelog/agent-changelog) for details.`n<!-- release-notes: none -->"
           }
 
           # Previous release for the compare link. Fail-soft: the first release has none,

.github/workflows/build-msi.yml

@@ -11,32 +11,42 @@ on:
   workflow_dispatch:
     inputs:
       upload_blob:
-        description: 'Upload to blob (customer-facing via download.autopilotmonitor.com/agent/)'
+        description: 'Upload to blob (customer-facing through the download alias)'
         required: true
         type: boolean
         default: true
 
+# Every job states its own permissions. This default is what the build job runs with: wix is
+# third-party code and must never hold more than a read-only token.
 permissions:
   contents: read
-  id-token: write      # keyless Sigstore signing (artifact attestation)
-  attestations: write  # store the provenance attestation
 
 env:
   MSI_PROJECT_DIR: src/Agent/AutopilotMonitor.BootstrapMsi
   RUNNER_SCRIPT: scripts/Bootstrap/Start-AutopilotMonitor.ps1
   STABLE_MSI: AutopilotMonitor-Bootstrap.msi
-  # Authenticode via Azure Key Vault; identity and vault come from repository variables.
+  # Authenticode via Azure Key Vault; identity and vault come from repository variables, the
+  # timestamp server (CODE_SIGN_TIMESTAMP_URL) from the endpoint registry like every host here.
   # CODE_SIGN_EXPECTED_SUBJECT is optional and pins the publisher in the verify steps.
   CODE_SIGN_CLIENT_ID: ${{ vars.CODE_SIGN_CLIENT_ID }}
   CODE_SIGN_CERTIFICATE_NAME: ${{ vars.CODE_SIGN_CERTIFICATE_NAME }}
   CODE_SIGN_KEY_VAULT_URL: ${{ vars.CODE_SIGN_KEY_VAULT_URL }}
   CODE_SIGN_EXPECTED_SUBJECT: ${{ vars.CODE_SIGN_EXPECTED_SUBJECT }}
-  CODE_SIGN_TIMESTAMP_URL: http://timestamp.acs.microsoft.com
 
 jobs:
-  build:
+  # Signs the loader BEFORE the build: wix embeds the file as it finds it, so a loader signed
+  # afterwards would leave the copy inside the MSI unsigned. Devices under an AllSigned policy
+  # need the embedded loader to carry a signature of its own.
+  #
+  # Trust zone: only this repository's scripts, pinned actions and the pinned signing tool run
+  # here. The `release` environment is the only subject the code-signing identity trusts.
+  sign-loader:
+    name: Sign bootstrap loader
     runs-on: windows-latest
-    name: Build Bootstrap MSI
+    environment: release
+    permissions:
+      contents: read
+      id-token: write   # code-signing login
 
     steps:
       - name: Checkout repository
@@ -44,6 +54,11 @@ jobs:
         with:
           persist-credentials: false
 
+      # Every host in this workflow comes from the one endpoint registry.
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
       # The loader executes as SYSTEM on every enrolling device — a parse error or
       # non-ASCII mojibake (PS 5.1 codepage roulette) must fail the build, not the fleet.
       # bootstrap-script-gates.yml runs the same checks plus Pester on pushes; this job
@@ -60,6 +75,236 @@ jobs:
           }
           Write-Host "Runner script parse + ASCII check passed"
 
+      # Every published MSI is signed; a missing variable stops the run before the build.
+      - name: Check code-signing configuration
+        shell: pwsh
+        run: |
+          foreach ($name in 'CODE_SIGN_CLIENT_ID', 'CODE_SIGN_CERTIFICATE_NAME', 'CODE_SIGN_KEY_VAULT_URL') {
+            if ([string]::IsNullOrWhiteSpace([Environment]::GetEnvironmentVariable($name))) {
+              throw "Repository variable $name is not set. Every published MSI must be Authenticode-signed."
+            }
+          }
+
+      - name: Login to Azure (code-signing identity)
+        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
+        with:
+          client-id: ${{ env.CODE_SIGN_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          allow-no-subscriptions: true
+
+      - name: Acquire Key Vault token for signing
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $token = az account get-access-token --scope https://vault.azure.net/.default --query accessToken --output tsv
+          if ($LASTEXITCODE -ne 0 -or [string]::IsNullOrWhiteSpace($token)) {
+            throw "Could not acquire a Key Vault token for the code-signing identity."
+          }
+          Write-Host "::add-mask::$token"
+          "CODE_SIGN_AKV_ACCESS_TOKEN=$token" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+
+      # Version pinned; roll-forward because the tool targets an older runtime than the SDK.
+      - name: Install AzureSignTool
+        env:
+          DOTNET_ROLL_FORWARD: LatestMajor
+        run: dotnet tool install --no-cache --global AzureSignTool --version 7.0.1
+
+      # A missing timestamp fails the run: without it the signature dies with the certificate.
+      - name: Sign bootstrap loader (Authenticode)
+        shell: pwsh
+        env:
+          DOTNET_ROLL_FORWARD: LatestMajor
+        run: |
+          $ErrorActionPreference = 'Stop'
+          & azuresigntool.exe sign --verbose `
+            --azure-key-vault-url "$env:CODE_SIGN_KEY_VAULT_URL" `
+            --azure-key-vault-accesstoken "$env:CODE_SIGN_AKV_ACCESS_TOKEN" `
+            --azure-key-vault-certificate "$env:CODE_SIGN_CERTIFICATE_NAME" `
+            --timestamp-rfc3161 "$env:CODE_SIGN_TIMESTAMP_URL" `
+            --file-digest sha256 `
+            --description 'Autopilot Monitor bootstrap runner' `
+            --description-url $env:WWW_BASE_URL `
+            $env:RUNNER_SCRIPT
+          if ($LASTEXITCODE -ne 0) { throw "azuresigntool failed with exit code $LASTEXITCODE" }
+
+          $sig = Get-AuthenticodeSignature -FilePath $env:RUNNER_SCRIPT
+          if ($sig.Status -ne 'Valid') { throw "Signature on $env:RUNNER_SCRIPT is '$($sig.Status)', expected 'Valid'." }
+          if (-not $sig.TimeStamperCertificate) { throw "Signature on $env:RUNNER_SCRIPT carries no timestamp." }
+          if ($env:CODE_SIGN_EXPECTED_SUBJECT -and $sig.SignerCertificate.Subject -notlike $env:CODE_SIGN_EXPECTED_SUBJECT) {
+            throw "$env:RUNNER_SCRIPT was signed by '$($sig.SignerCertificate.Subject)', expected '$env:CODE_SIGN_EXPECTED_SUBJECT'."
+          }
+          Write-Host "$env:RUNNER_SCRIPT : Valid, timestamped, signer $($sig.SignerCertificate.Subject.Split(',')[0])"
+
+      - name: Upload signed loader
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: bootstrap-loader-signed
+          path: ${{ env.RUNNER_SCRIPT }}
+          if-no-files-found: error
+          retention-days: 1
+
+  # Build zone: no login, no secret, no id-token. Its only output is the artifact; the
+  # release job treats that as data and never builds.
+  build:
+    name: Build MSI
+    needs: sign-loader
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Download signed loader
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: bootstrap-loader-signed
+          path: ${{ runner.temp }}/loader
+
+      # The signed copy replaces the checkout's unsigned one before wix embeds it.
+      - name: Put the signed loader in place
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          Copy-Item -Path (Join-Path $env:RUNNER_TEMP 'loader/Start-AutopilotMonitor.ps1') -Destination $env:RUNNER_SCRIPT -Force
+          $sig = Get-AuthenticodeSignature -FilePath $env:RUNNER_SCRIPT
+          if ($sig.Status -ne 'Valid') { throw "Loader to embed is '$($sig.Status)', expected 'Valid'." }
+          Write-Host "Embedding the signed loader ($((Get-Item $env:RUNNER_SCRIPT).Length) bytes)"
+
+      # Exact version, not a "5.*" range: wix writes the bytes of the MSI that customers
+      # install, so a compromised or simply broken point release must not flow into a build
+      # unnoticed. Bumping is a reviewed commit.
+      - name: Install WiX toolset
+        run: dotnet tool install --global wix --version 5.0.2
+
+      - name: Build MSI
+        shell: pwsh
+        run: |
+          # The MSI's action runs only the exact bytes the package embeds: the hash of the
+          # signed loader goes into the command here, so no other signed script of ours runs
+          # in its place on a device.
+          $loaderSha256 = (Get-FileHash -LiteralPath $env:RUNNER_SCRIPT -Algorithm SHA256).Hash.ToLowerInvariant()
+          Write-Host "Embedded loader SHA-256: $loaderSha256"
+          # wix resolves File/@Source relative to the working directory, not the wxs —
+          # build from inside the project dir (same as the local build documented in the wxs).
+          $out = Join-Path (Get-Location) $env:STABLE_MSI
+          Push-Location $env:MSI_PROJECT_DIR
+          wix build Package.wxs -arch x64 -d LoaderSha256=$loaderSha256 -o $out
+          Pop-Location
+          if (-not (Test-Path $env:STABLE_MSI)) { Write-Error "wix build produced no MSI"; exit 1 }
+          Write-Host "Built $env:STABLE_MSI ($([math]::Round((Get-Item $env:STABLE_MSI).Length / 1KB)) KB)"
+
+      - name: Upload unsigned MSI
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: bootstrap-msi-unsigned
+          path: ${{ env.STABLE_MSI }}
+          if-no-files-found: error
+          retention-days: 1
+
+  # The real chain on a runner, before anything is signed or published: msiexec installs the
+  # MSI from the build, its action checks the loader copy and runs it, the loader fetches the
+  # published installer, which finds the deployment marker set here and removes the copy. The
+  # marker is the installer's first guard, so no agent is ever installed on the runner. Needs
+  # the published installer to be 2.9 or later, which removes the copy in every outcome.
+  smoke:
+    name: Install on a runner (${{ matrix.os }})
+    needs: build
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-2022, windows-2025]
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Download unsigned MSI
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: bootstrap-msi-unsigned
+          path: ${{ runner.temp }}/msi
+
+      - name: Install with the deployment marker set, check the footprint, uninstall
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $msi = Join-Path $env:RUNNER_TEMP "msi/$env:STABLE_MSI"
+          $wxs = Get-Content "$env:MSI_PROJECT_DIR/Package.wxs" -Raw
+          if ($wxs -notmatch 'Version="(\d+\.\d+\.\d+)"') { throw 'Could not parse Version from Package.wxs' }
+          $version = $Matches[1]
+
+          New-Item -Path 'HKLM:\SOFTWARE\AutopilotMonitor' -Force | Out-Null
+          Set-ItemProperty -Path 'HKLM:\SOFTWARE\AutopilotMonitor' -Name 'Deployed' -Value ((Get-Date).ToUniversalTime().ToString('o'))
+
+          function Invoke-Msiexec {
+            param([string]$Verb, [string]$Log)
+            $p = Start-Process -FilePath msiexec.exe -ArgumentList "/$Verb `"$msi`" /qn /l*v `"$Log`"" -Wait -PassThru
+            if ($p.ExitCode -ne 0) { Get-Content $Log | Select-Object -Last 60; throw "msiexec /$Verb exited with $($p.ExitCode)" }
+          }
+          function Get-Registration {
+            Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall' | Get-ItemProperty | Where-Object { $_.DisplayName -eq 'Autopilot Monitor Bootstrap' }
+          }
+          function Show-Tree {
+            param([string]$Path)
+            Get-ChildItem -LiteralPath $Path -Recurse -Force | ForEach-Object { Write-Host "  $($_.FullName)" }
+          }
+
+          $installLog = Join-Path $env:RUNNER_TEMP 'msi-install.log'
+          Invoke-Msiexec -Verb i -Log $installLog
+          $registered = Get-Registration
+          if (-not $registered) { throw 'The product is not registered after the install.' }
+          if ($registered.DisplayVersion -ne $version) { throw "Registered version $($registered.DisplayVersion), Package.wxs says $version." }
+          if ((Get-Content $installLog -Raw) -notmatch 'RunBootstrap') { throw 'The install log does not show the action.' }
+          Write-Host "Registered: $($registered.DisplayName) $($registered.DisplayVersion)"
+
+          # Only the installer removes the copy the MSI put under ProgramData: its absence
+          # proves the action ran the loader and the loader ran the installer.
+          foreach ($path in @("$env:ProgramW6432\AutopilotMonitor", "$env:ProgramData\AutopilotMonitor")) {
+            if (Test-Path -LiteralPath $path) { Show-Tree $path; throw "$path exists after the run." }
+          }
+          $runFolders = @(Get-ChildItem -LiteralPath $env:ProgramData -Directory -Filter 'AutopilotMonitor-Loader-*' -Force)
+          if ($runFolders.Count -ne 0) {
+            foreach ($folder in $runFolders) {
+              Show-Tree $folder.FullName
+              Get-ChildItem -LiteralPath $folder.FullName -Filter '*.log' | ForEach-Object { Get-Content -LiteralPath $_.FullName }
+            }
+            throw 'A loader run folder stays: the loader did not end with exit 0.'
+          }
+          Write-Host 'After the install: nothing under ProgramData or Program Files.'
+
+          Invoke-Msiexec -Verb x -Log (Join-Path $env:RUNNER_TEMP 'msi-uninstall.log')
+          if (Get-Registration) { throw 'The product is still registered after the uninstall.' }
+          Remove-Item -Path 'HKLM:\SOFTWARE\AutopilotMonitor' -Recurse -Force
+          Write-Host 'Uninstalled; the registration is gone.'
+
+  # Trust zone: signs, verifies and publishes the MSI as data; never builds. Environment
+  # `release`, like sign-loader.
+  release:
+    name: Sign and publish MSI
+    needs: smoke
+    runs-on: windows-latest
+    environment: release
+    permissions:
+      contents: read
+      id-token: write      # code-signing and storage logins, keyless Sigstore signing
+      attestations: write  # store the provenance attestation
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
+      # Read from this job's own checkout, never handed over by the build job.
       - name: Read MSI version from Package.wxs
         id: version
         shell: pwsh
@@ -73,20 +318,19 @@ jobs:
           Write-Host "MSI version (from Package.wxs): $version"
           "version=$version" >> $env:GITHUB_OUTPUT
 
-      # Every published MSI is signed; a missing variable stops the run before the build.
-      - name: Check code-signing configuration
+      - name: Download unsigned MSI
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: bootstrap-msi-unsigned
+          path: ${{ runner.temp }}/msi
+
+      # Only the expected file leaves the download folder.
+      - name: Take the MSI from the build
         shell: pwsh
-        run: |
-          foreach ($name in 'CODE_SIGN_CLIENT_ID', 'CODE_SIGN_CERTIFICATE_NAME', 'CODE_SIGN_KEY_VAULT_URL') {
-            if ([string]::IsNullOrWhiteSpace([Environment]::GetEnvironmentVariable($name))) {
-              throw "Repository variable $name is not set. Every published MSI must be Authenticode-signed."
-            }
-          }
+        run: Copy-Item -Path (Join-Path $env:RUNNER_TEMP "msi/$env:STABLE_MSI") -Destination $env:STABLE_MSI -ErrorAction Stop
 
       # Logs in FIRST and only to fetch the Key Vault token: azure/login sets the default az
-      # account, so the storage login below has to be the last one. Both federated credentials
-      # are bound to the ref, so this job must never be given an `environment:` -- that would
-      # change the OIDC subject claim and break both logins.
+      # account, so the storage login below has to be the last one.
       - name: Login to Azure (code-signing identity)
         uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
         with:
@@ -113,50 +357,12 @@ jobs:
           tenant-id: ${{ secrets.AZURE_TENANT_ID }}
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
-      # Exact version, not a "5.*" range: wix writes the bytes of the MSI that customers
-      # install, so a compromised or simply broken point release must not flow into a build
-      # unnoticed. Bumping is a reviewed commit.
-      - name: Install WiX toolset
-        run: dotnet tool install --global wix --version 5.0.2
-
       # Version pinned; roll-forward because the tool targets an older runtime than the SDK.
       - name: Install AzureSignTool
         env:
           DOTNET_ROLL_FORWARD: LatestMajor
         run: dotnet tool install --no-cache --global AzureSignTool --version 7.0.1
 
-      # BEFORE the build: wix embeds the file as it finds it, so a loader signed afterwards
-      # would leave the copy inside the MSI unsigned. Devices under an AllSigned policy need
-      # the embedded loader to carry a signature of its own.
-      - name: Sign bootstrap loader (Authenticode)
-        shell: pwsh
-        env:
-          DOTNET_ROLL_FORWARD: LatestMajor
-        run: |
-          $ErrorActionPreference = 'Stop'
-          & azuresigntool.exe sign --verbose `
-            --azure-key-vault-url "$env:CODE_SIGN_KEY_VAULT_URL" `
-            --azure-key-vault-accesstoken "$env:CODE_SIGN_AKV_ACCESS_TOKEN" `
-            --azure-key-vault-certificate "$env:CODE_SIGN_CERTIFICATE_NAME" `
-            --timestamp-rfc3161 "$env:CODE_SIGN_TIMESTAMP_URL" `
-            --file-digest sha256 `
-            --description 'Autopilot Monitor bootstrap runner' `
-            --description-url 'https://www.autopilotmonitor.com' `
-            $env:RUNNER_SCRIPT
-          if ($LASTEXITCODE -ne 0) { throw "azuresigntool failed with exit code $LASTEXITCODE" }
-
-      - name: Build MSI
-        shell: pwsh
-        run: |
-          # wix resolves File/@Source relative to the working directory, not the wxs —
-          # build from inside the project dir (same as the local build documented in the wxs).
-          $out = Join-Path (Get-Location) $env:STABLE_MSI
-          Push-Location $env:MSI_PROJECT_DIR
-          wix build Package.wxs -arch x64 -o $out
-          Pop-Location
-          if (-not (Test-Path $env:STABLE_MSI)) { Write-Error "wix build produced no MSI"; exit 1 }
-          Write-Host "Built $env:STABLE_MSI ($([math]::Round((Get-Item $env:STABLE_MSI).Length / 1KB)) KB)"
-
       # Signing rewrites the MSI, so it runs before the hash and the upload. A missing
       # timestamp fails the run: without it the signature dies with the certificate.
       - name: Sign MSI (Authenticode)
@@ -172,30 +378,30 @@ jobs:
             --timestamp-rfc3161 "$env:CODE_SIGN_TIMESTAMP_URL" `
             --file-digest sha256 `
             --description 'Autopilot Monitor Bootstrap' `
-            --description-url 'https://www.autopilotmonitor.com' `
+            --description-url $env:WWW_BASE_URL `
             $env:STABLE_MSI
           if ($LASTEXITCODE -ne 0) { throw "azuresigntool failed with exit code $LASTEXITCODE" }
 
-          # The MSI and the loader it carries -- verified here, before anything is published.
-          foreach ($file in @($env:STABLE_MSI, $env:RUNNER_SCRIPT)) {
-            $sig = Get-AuthenticodeSignature -FilePath $file
-            if ($sig.Status -ne 'Valid') { throw "Signature on $file is '$($sig.Status)', expected 'Valid'." }
-            if (-not $sig.TimeStamperCertificate) { throw "Signature on $file carries no timestamp." }
-            if ($env:CODE_SIGN_EXPECTED_SUBJECT -and $sig.SignerCertificate.Subject -notlike $env:CODE_SIGN_EXPECTED_SUBJECT) {
-              throw "$file was signed by '$($sig.SignerCertificate.Subject)', expected '$env:CODE_SIGN_EXPECTED_SUBJECT'."
-            }
-            Write-Host "$file : Valid, timestamped, signer $($sig.SignerCertificate.Subject.Split(',')[0])"
+          # The loader was verified in sign-loader; here the MSI, before anything is published.
+          $sig = Get-AuthenticodeSignature -FilePath $env:STABLE_MSI
+          if ($sig.Status -ne 'Valid') { throw "Signature on $env:STABLE_MSI is '$($sig.Status)', expected 'Valid'." }
+          if (-not $sig.TimeStamperCertificate) { throw "Signature on $env:STABLE_MSI carries no timestamp." }
+          if ($env:CODE_SIGN_EXPECTED_SUBJECT -and $sig.SignerCertificate.Subject -notlike $env:CODE_SIGN_EXPECTED_SUBJECT) {
+            throw "$env:STABLE_MSI was signed by '$($sig.SignerCertificate.Subject)', expected '$env:CODE_SIGN_EXPECTED_SUBJECT'."
           }
+          Write-Host "$env:STABLE_MSI : Valid, timestamped, signer $($sig.SignerCertificate.Subject.Split(',')[0])"
 
           Write-Host "SHA-256: $((Get-FileHash $env:STABLE_MSI -Algorithm SHA256).Hash.ToLowerInvariant())"
 
       - name: Upload to Azure Blob Storage
         if: inputs.upload_blob
         shell: pwsh
+        env:
+          MSI_VERSION: ${{ steps.version.outputs.version }}
         run: |
-          $containerUrl = "https://autopilotmonitoreu.blob.core.windows.net/agent"
+          $containerUrl = $env:AGENT_CONTAINER_URL
           $authHeaders = & ./.github/scripts/Get-StorageAuthHeaders.ps1
-          $version = "${{ steps.version.outputs.version }}"
+          $version = $env:MSI_VERSION
 
           # Same Send-Blob contract as build-agent.yml: no-cache on every blob because the
           # stable name rotates in place behind the download alias. No legacy mirror — the
@@ -226,14 +432,14 @@ jobs:
         shell: pwsh
         run: |
           $localSize = (Get-Item $env:STABLE_MSI).Length
-          $resp = Invoke-WebRequest -Uri "https://download.autopilotmonitor.com/agent/$env:STABLE_MSI" -Method Head -UseBasicParsing
+          $resp = Invoke-WebRequest -Uri "$env:DOWNLOAD_ALIAS_URL/$env:STABLE_MSI" -Method Head -UseBasicParsing
           if ($resp.StatusCode -ne 200) { Write-Error "Alias HEAD returned $($resp.StatusCode)"; exit 1 }
           $remoteSize = [long]$resp.Headers['Content-Length'][0]
           if ($remoteSize -ne $localSize) {
             Write-Error "Size mismatch: alias serves $remoteSize bytes, local MSI is $localSize bytes"
             exit 1
           }
-          Write-Host "Alias verified: https://download.autopilotmonitor.com/agent/$env:STABLE_MSI ($remoteSize bytes)"
+          Write-Host "Alias verified: $env:DOWNLOAD_ALIAS_URL/$env:STABLE_MSI ($remoteSize bytes)"
 
       # Sigstore keyless provenance, same as the agent ZIP; covers the signed bytes. Skipped
       # on runs that publish nothing -- no log entry for bytes nobody receives. Verify:

.github/workflows/ci.yml

@@ -46,7 +46,6 @@ on:
       - '.github/workflows/deploy-mcp.yml'
       - '.github/workflows/deploy-web.yml'
       - '.github/workflows/indexnow-notify.yml'
-      - '.github/workflows/oidc-login-test.yml'
       - '.github/workflows/pester.yml'
       - '.github/workflows/publish-scripts.yml'
   pull_request:
@@ -80,7 +79,6 @@ on:
       - '.github/workflows/deploy-mcp.yml'
       - '.github/workflows/deploy-web.yml'
       - '.github/workflows/indexnow-notify.yml'
-      - '.github/workflows/oidc-login-test.yml'
       - '.github/workflows/pester.yml'
       - '.github/workflows/publish-scripts.yml'
   workflow_dispatch:

.github/workflows/codeql.yml

@@ -28,6 +28,7 @@ on:
       # Every other workflow: none of them changes the C# or TypeScript CodeQL analyzes.
       # paths-ignore cannot negate, so they are listed one by one; codeql.yml itself and
       # .github/codeql/ stay out of the list. A new workflow file is opt-in — add it here too.
+      - '.github/workflows/action-pins.yml'
       - '.github/workflows/bootstrap-script-gates.yml'
       - '.github/workflows/build-agent.yml'
       - '.github/workflows/build-msi.yml'
@@ -37,7 +38,6 @@ on:
       - '.github/workflows/deploy-mcp.yml'
       - '.github/workflows/deploy-web.yml'
       - '.github/workflows/indexnow-notify.yml'
-      - '.github/workflows/oidc-login-test.yml'
       - '.github/workflows/pester.yml'
       - '.github/workflows/publish-scripts.yml'
   pull_request:
@@ -60,6 +60,7 @@ on:
       # Every other workflow: none of them changes the C# or TypeScript CodeQL analyzes.
       # paths-ignore cannot negate, so they are listed one by one; codeql.yml itself and
       # .github/codeql/ stay out of the list. A new workflow file is opt-in — add it here too.
+      - '.github/workflows/action-pins.yml'
       - '.github/workflows/bootstrap-script-gates.yml'
       - '.github/workflows/build-agent.yml'
       - '.github/workflows/build-msi.yml'
@@ -69,7 +70,6 @@ on:
       - '.github/workflows/deploy-mcp.yml'
       - '.github/workflows/deploy-web.yml'
       - '.github/workflows/indexnow-notify.yml'
-      - '.github/workflows/oidc-login-test.yml'
       - '.github/workflows/pester.yml'
       - '.github/workflows/publish-scripts.yml'
   schedule:

.github/workflows/combine-rules.yml

@@ -1,7 +1,7 @@
 name: Validate & Combine Rules
 on:
   push:
-    branches: [main, dev]
+    branches: [main]
     paths:
       - 'rules/gather/**'
       - 'rules/analyze/**'
@@ -9,6 +9,7 @@ on:
       - 'rules/schema/**'
       - 'rules/scripts/**'
       - 'rules/guardrails.json'
+      - '.github/workflows/combine-rules.yml'
   pull_request:
     paths:
       - 'rules/gather/**'
@@ -17,24 +18,27 @@ on:
       - 'rules/schema/**'
       - 'rules/scripts/**'
       - 'rules/guardrails.json'
+      - '.github/workflows/combine-rules.yml'
+
+permissions:
+  contents: read
 
 jobs:
-  validate-and-combine:
+  # Pull requests and pushes alike; read-only, because the validator is third-party code.
+  validate:
     runs-on: ubuntu-latest
-    permissions:
-      contents: write
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
 
       - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with:
           node-version: '22'
 
-      # Lockfile and no lifecycle scripts: this job holds contents:write and pushes to
-      # main, so an install-time script from a hijacked package would run with a token that
-      # can rewrite the repository. rules/scripts/package-lock.json pins ajv, ajv-formats
-      # and every transitive package (Dependabot keeps it current); ajv is pure JS and
-      # needs no install hooks.
+      # Lockfile and no lifecycle scripts: rules/scripts/package-lock.json pins ajv,
+      # ajv-formats and every transitive package (Dependabot keeps it current); ajv is pure
+      # JS and needs no install hooks.
       - name: Install the rules validator from the lockfile
         working-directory: rules/scripts
         run: npm ci --ignore-scripts
@@ -48,13 +52,31 @@ jobs:
       - name: Combine rules into dist/
         run: node rules/scripts/combine.js
 
-      # Plain git instead of a third-party action: this step runs with contents:write on
-      # main, so no code we do not control gets to push. Checkout leaves the job's
-      # GITHUB_TOKEN in the remote credential helper, which is all `git push` needs.
+  # The one job that can push to main, and it installs nothing: combine.js needs only node's
+  # built-ins, so no package code ever runs next to the write token. Keep it that way -- a
+  # dependency in combine.js would need its own job.
+  publish:
+    needs: validate
+    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      # Checkout leaves the job's GITHUB_TOKEN in the remote credential helper, which is all
+      # `git push` needs.
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+
+      - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
+        with:
+          node-version: '22'
+
+      - name: Combine rules into dist/
+        run: node rules/scripts/combine.js
+
+      # Plain git instead of a third-party action, so no code we do not control gets to push.
       # NOTE: combine.js writes THREE outputs; committing only dist/ would silently discard
       # the two generated TS modules and leave the guardrails-in-sync CI check red.
       - name: Commit generated outputs
-        if: github.ref == 'refs/heads/main' && github.event_name == 'push'
         run: |
           set -euo pipefail
           git config user.name "github-actions[bot]"

.github/workflows/deploy-backend.yml

@@ -3,26 +3,41 @@ name: Deploy Backend (Azure Functions)
 on:
   workflow_dispatch:
 
+# Every job states its own permissions. This default is what the build job runs with: restore
+# and build execute third-party code (NuGet MSBuild targets, the Functions worker SDK) and must
+# never hold more than a read-only token.
 permissions:
-  id-token: write   # OIDC federated login (secret-less)
   contents: read
 
+# Hosts (API, versions container) come from .github/scripts/Get-Endpoints.ps1.
 env:
   FUNCTION_APP: autopilotmonitor-api-eu
-  HEALTH_URL: https://autopilotmonitor-api-eu.azurewebsites.net/api/health
-  VERSIONS_CONTAINER: https://autopilotmonitoreu.blob.core.windows.net/versions
   CSPROJ_PATH: src/Backend/AutopilotMonitor.Functions/AutopilotMonitor.Functions.csproj
 
 jobs:
-  build-and-deploy:
+  # Runs only this repository's scripts. The deploy identity trusts the `production`
+  # environment, which admits main only.
+  reserve:
+    name: Reserve build number
     runs-on: ubuntu-latest
-    name: Build and Deploy Backend
+    environment: production
+    permissions:
+      contents: read
+      id-token: write   # OIDC federated login (secret-less)
+    outputs:
+      build_number: ${{ steps.version.outputs.build_number }}
+      version: ${{ steps.version.outputs.version }}
+      build_utc: ${{ steps.version.outputs.build_utc }}
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
 
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
       - name: Login to Azure (OIDC)
         uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
         with:
@@ -30,11 +45,6 @@ jobs:
           tenant-id: ${{ secrets.AZURE_TENANT_ID }}
           subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
-      - name: Setup .NET 10
-        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
-        with:
-          dotnet-version: '10.0.x'
-
       # Same counter mechanism as the agent line: reserve-before-build with ETag-CAS
       # against a per-component counter blob. BuildTimestampUtc is pinned here rather
       # than left to MSBuild's default so the published manifest and the value baked
@@ -43,7 +53,7 @@ jobs:
         id: version
         shell: pwsh
         run: |
-          $buildNumber = & ./.github/scripts/Request-BuildNumber.ps1 -CounterUrl "${{ env.VERSIONS_CONTAINER }}/backend.txt"
+          $buildNumber = & ./.github/scripts/Request-BuildNumber.ps1 -CounterUrl "$env:VERSIONS_CONTAINER_URL/backend.txt"
 
           $csproj = Get-Content ${{ env.CSPROJ_PATH }} -Raw
           if ($csproj -notmatch '<VersionPrefix>(\d+\.\d+)</VersionPrefix>') {
@@ -57,20 +67,90 @@ jobs:
           "version=$version" >> $env:GITHUB_OUTPUT
           "build_utc=$buildUtc" >> $env:GITHUB_OUTPUT
 
+  # Build zone: no login, no secret, no id-token. Its only output is the artifact; the
+  # deploy job treats that as data and never builds.
+  build:
+    name: Build
+    needs: reserve
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Setup .NET 10
+        uses: actions/setup-dotnet@a98b56852c35b8e3190ac28c8c2271da59106c68 # v6.0.0
+        with:
+          dotnet-version: '10.0.x'
+
       - name: Restore dependencies
         run: dotnet restore ${{ env.CSPROJ_PATH }}
 
       - name: Build
-        run: dotnet build ${{ env.CSPROJ_PATH }} --configuration Release --no-restore -p:SourceRevisionId=${{ github.sha }} -p:BuildNumber=${{ steps.version.outputs.build_number }} -p:BuildTimestampUtc=${{ steps.version.outputs.build_utc }}
+        run: dotnet build ${{ env.CSPROJ_PATH }} --configuration Release --no-restore -p:SourceRevisionId=${{ github.sha }} -p:BuildNumber=${{ needs.reserve.outputs.build_number }} -p:BuildTimestampUtc=${{ needs.reserve.outputs.build_utc }}
 
       - name: Publish
-        run: dotnet publish ${{ env.CSPROJ_PATH }} --configuration Release --output ./publish --no-build -p:SourceRevisionId=${{ github.sha }} -p:BuildNumber=${{ steps.version.outputs.build_number }} -p:BuildTimestampUtc=${{ steps.version.outputs.build_utc }}
+        run: dotnet publish ${{ env.CSPROJ_PATH }} --configuration Release --output ./publish --no-build -p:SourceRevisionId=${{ github.sha }} -p:BuildNumber=${{ needs.reserve.outputs.build_number }} -p:BuildTimestampUtc=${{ needs.reserve.outputs.build_utc }}
+
+      # One archive, not a folder upload: upload-artifact skips hidden files, and the
+      # isolated worker cannot start without the publish output's .azurefunctions/ folder.
+      - name: Package publish output
+        run: tar -czf "$RUNNER_TEMP/backend-publish.tgz" -C publish .
+
+      - name: Upload publish output
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: backend-publish
+          path: ${{ runner.temp }}/backend-publish.tgz
+          if-no-files-found: error
+          retention-days: 1
+
+  # Trust zone: only this repository's scripts and pinned actions run here, never a restore
+  # or build. The package is unpacked outside the checkout, so nothing in it can replace the
+  # scripts this job runs.
+  deploy:
+    name: Deploy and verify
+    needs: [reserve, build]
+    runs-on: ubuntu-latest
+    environment: production
+    permissions:
+      contents: read
+      id-token: write   # OIDC federated login (secret-less)
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
+      - name: Download publish output
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: backend-publish
+          path: ${{ runner.temp }}/backend-artifact
+
+      # GNU tar refuses members with '..' and strips leading '/'.
+      - name: Unpack publish output
+        run: |
+          mkdir "$RUNNER_TEMP/publish"
+          tar -xzf "$RUNNER_TEMP/backend-artifact/backend-publish.tgz" -C "$RUNNER_TEMP/publish"
+
+      - name: Login to Azure (OIDC)
+        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
+        with:
+          client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
 
       - name: Deploy to Azure Functions
         uses: Azure/functions-action@c5060b3b8bb1ebbcb531abd00c822ecbaa8ea656 # v1.5.7
         with:
           app-name: ${{ env.FUNCTION_APP }}
-          package: ./publish
+          package: ${{ runner.temp }}/publish
 
       # A green deploy step only means the package was accepted. This gate makes the
       # workflow assert what is actually being served, so the manifest published below
@@ -78,16 +158,18 @@ jobs:
       # /api/health is IP rate-limited at 30/min; one poll per 10s stays well under.
       - name: Verify deployed build is live
         shell: pwsh
+        env:
+          EXPECTED_VERSION: ${{ needs.reserve.outputs.version }}
         run: |
           $expectedCommit = '${{ github.sha }}'.Substring(0, 7)
-          $expectedVersion = '${{ steps.version.outputs.version }}'
+          $expectedVersion = $env:EXPECTED_VERSION
           $deadline = [DateTime]::UtcNow.AddMinutes(3)
           $attempt = 0
 
           while ([DateTime]::UtcNow -lt $deadline) {
             $attempt++
             try {
-              $health = Invoke-RestMethod -Uri '${{ env.HEALTH_URL }}' -Method Get -TimeoutSec 30
+              $health = Invoke-RestMethod -Uri "$env:API_BASE_URL/api/health" -Method Get -TimeoutSec 30
               if ($health.commitHash -eq $expectedCommit -and $health.version -eq $expectedVersion) {
                 Write-Host "Live after $attempt attempt(s): $($health.version) @ $($health.commitHash), built $($health.buildUtc)"
                 exit 0
@@ -107,18 +189,21 @@ jobs:
       # (rollback, stale instance) rather than a half-finished pipeline.
       - name: Publish version manifest
         shell: pwsh
+        env:
+          BACKEND_VERSION: ${{ needs.reserve.outputs.version }}
+          BACKEND_BUILD_UTC: ${{ needs.reserve.outputs.build_utc }}
         run: |
           $manifest = [ordered]@{
             component   = 'backend'
-            version     = '${{ steps.version.outputs.version }}'
+            version     = $env:BACKEND_VERSION
             commit      = '${{ github.sha }}'.Substring(0, 7)
-            buildUtc    = '${{ steps.version.outputs.build_utc }}'
+            buildUtc    = $env:BACKEND_BUILD_UTC
             deployedUtc = [DateTime]::UtcNow.ToString('o')
             runId       = '${{ github.run_id }}'
           } | ConvertTo-Json
 
           $authHeaders = & ./.github/scripts/Get-StorageAuthHeaders.ps1
-          $url = "${{ env.VERSIONS_CONTAINER }}/backend.json"
+          $url = "$env:VERSIONS_CONTAINER_URL/backend.json"
           # no-cache: rotating pointer, must never be served stale by any fronting cache.
           Invoke-RestMethod -Uri $url -Method Put -Headers ($authHeaders + @{ 'x-ms-blob-type' = 'BlockBlob'; 'x-ms-blob-cache-control' = 'no-cache' }) -Body $manifest -ContentType 'application/json' | Out-Null
           Write-Host "Published versions/backend.json"

.github/workflows/deploy-mcp.yml

@@ -16,20 +16,29 @@ env:
   # reference — with a sha-only tag `az containerapp update` saw the same image
   # and silently created no revision (2026-08-28).
   IMAGE_TAG: ${{ github.sha }}-${{ github.run_number }}
-  HEALTH_URL: https://mcp.autopilotmonitor.com/health
-  VERSIONS_CONTAINER: https://autopilotmonitoreu.blob.core.windows.net/versions
   PACKAGE_JSON: src/McpServer/autopilot-monitor-mcp/package.json
+  # Hosts (MCP, versions container) come from .github/scripts/Get-Endpoints.ps1.
 
 jobs:
+  # One job on purpose, unlike the other deploys: all third-party code (npm ci, the build, the
+  # embedding precompute) runs inside `docker build`, whose containers see neither the az
+  # login nor the registry credentials nor this job's OIDC request token. That container is
+  # the boundary -- never move npm onto the runner here, or the build gets the job's
+  # credentials. The deploy identity trusts the `production` environment, which admits main only.
   build-and-deploy:
     runs-on: ubuntu-latest
     name: Build and Deploy MCP Server
+    environment: production
 
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           persist-credentials: false
 
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
       # The published customer documentation lives in its own PUBLIC repo and is
       # baked into the image as the search_docs corpus (see the Dockerfile). No
       # token is needed. Checking it out here rather than vendoring it keeps the
@@ -62,7 +71,7 @@ jobs:
         id: version
         shell: pwsh
         run: |
-          $buildNumber = & ./.github/scripts/Request-BuildNumber.ps1 -CounterUrl "${{ env.VERSIONS_CONTAINER }}/mcp.txt"
+          $buildNumber = & ./.github/scripts/Request-BuildNumber.ps1 -CounterUrl "$env:VERSIONS_CONTAINER_URL/mcp.txt"
 
           $pkgVersion = (Get-Content ${{ env.PACKAGE_JSON }} -Raw | ConvertFrom-Json).version
           $prefix = ($pkgVersion -split '\.')[0..1] -join '.'
@@ -117,7 +126,7 @@ jobs:
           while ([DateTime]::UtcNow -lt $deadline) {
             $attempt++
             try {
-              $health = Invoke-RestMethod -Uri '${{ env.HEALTH_URL }}' -Method Get -TimeoutSec 60
+              $health = Invoke-RestMethod -Uri "$env:MCP_BASE_URL/health" -Method Get -TimeoutSec 60
               if ($health.commit -eq $expectedCommit -and $health.version -eq $expectedVersion) {
                 Write-Host "Live after $attempt attempt(s): $($health.version) @ $($health.commit), docs $($health.docs.commit) ($($health.docs.chunks) chunks)"
                 exit 0
@@ -148,7 +157,7 @@ jobs:
           } | ConvertTo-Json
 
           $authHeaders = & ./.github/scripts/Get-StorageAuthHeaders.ps1
-          $url = "${{ env.VERSIONS_CONTAINER }}/mcp.json"
+          $url = "$env:VERSIONS_CONTAINER_URL/mcp.json"
           # no-cache: rotating pointer, must never be served stale by any fronting cache.
           Invoke-RestMethod -Uri $url -Method Put -Headers ($authHeaders + @{ 'x-ms-blob-type' = 'BlockBlob'; 'x-ms-blob-cache-control' = 'no-cache' }) -Body $manifest -ContentType 'application/json' | Out-Null
           Write-Host "Published versions/mcp.json"

.github/workflows/deploy-web.yml

@@ -5,6 +5,11 @@ name: Deploy Web (Static Web App)
 # path ci.yml tests (setup-node 22 + npm ci + next build) instead of Oryx guessing inside the
 # action's container, and the exported site is attested like the agent ZIP and the MSI.
 #
+# Three jobs, each holding only what it needs: build runs all third-party code without any
+# credential, deploy holds the SWA token alone, record attests, verifies and writes the
+# manifest. A failed record job is re-run on its own; it writes only once the live site
+# serves this commit.
+#
 # PR preview environments were dropped with the action: their per-PR URLs are never
 # registered as redirect URIs, so nobody could log in on them anyway.
 
@@ -17,23 +22,29 @@ on:
       - '.github/workflows/deploy-web.yml'
   workflow_dispatch:
 
+# Every job states its own permissions. This default is what the build job runs with: npm ci
+# (install scripts included) and next build execute third-party code and must never hold more
+# than a read-only token.
 permissions:
   contents: read
-  id-token: write      # keyless Sigstore signing (artifact attestation)
-  attestations: write  # store the provenance attestation
 
+# Hosts (API, portal, storage) come from .github/scripts/Get-Endpoints.ps1, never from a
+# repository variable.
 env:
-  PORTAL_VERSION_URL: https://portal.autopilotmonitor.com/version.json
-  VERSIONS_CONTAINER: https://autopilotmonitoreu.blob.core.windows.net/versions
   WEB_DIR: src/Web/autopilot-monitor-web
   # Exact version: `npx --package` resolves from the registry at run time, so the pin is the
   # only thing that keeps the deploy step's code fixed. Bump deliberately.
   SWA_CLI_VERSION: 2.0.10
 
 jobs:
-  build_and_deploy_job:
+  # Build zone: no login, no id-token. The one secret here is the Application Insights
+  # connection string, which ships inside the public bundle anyway.
+  build:
+    name: Build
     runs-on: ubuntu-latest
-    name: Build and Deploy Job
+    outputs:
+      docs_sha: ${{ steps.docs.outputs.sha }}
+
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
@@ -41,14 +52,9 @@ jobs:
           lfs: false
           fetch-depth: 0  # Full history needed for git-based sitemap lastmod dates
 
-      # Only the version manifest at the very end needs Azure; logging in here rather than
-      # next to that step keeps a credential problem from surfacing after a live deploy.
-      - name: Login to Azure (OIDC)
-        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
-        with:
-          client-id: ${{ secrets.AZURE_CLIENT_ID }}
-          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
-          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
 
       # The customer docs repo is the single source of the "What's new" panel: the prebuild
       # step (scripts/whats-new/build-whats-new.js) turns changelog/*.md into
@@ -105,12 +111,6 @@ jobs:
           # and the default app for browsers without a stored selection (legacy|primary).
           NEXT_PUBLIC_ENTRA_LEGACY_CLIENT_ID: ${{ vars.NEXT_PUBLIC_ENTRA_LEGACY_CLIENT_ID }}
           NEXT_PUBLIC_ENTRA_DEFAULT_APP: ${{ vars.NEXT_PUBLIC_ENTRA_DEFAULT_APP }}
-          NEXT_PUBLIC_ENTRA_REDIRECT_URI: ${{ vars.NEXT_PUBLIC_ENTRA_REDIRECT_URI }}
-          NEXT_PUBLIC_ENTRA_POST_LOGOUT_REDIRECT_URI: ${{ vars.NEXT_PUBLIC_ENTRA_POST_LOGOUT_REDIRECT_URI }}
-          NEXT_PUBLIC_API_BASE_URL: ${{ vars.NEXT_PUBLIC_API_BASE_URL }}
-          # Browsers load the live stats through it, and the build reads it once to bake the
-          # numbers of this moment into the landing page's static HTML (lib/platformStats.ts).
-          NEXT_PUBLIC_PLATFORM_STATS_MANIFEST_URL: ${{ vars.NEXT_PUBLIC_PLATFORM_STATS_MANIFEST_URL }}
           NEXT_PUBLIC_APPINSIGHTS_CONNECTION_STRING: ${{ secrets.NEXT_PUBLIC_APPINSIGHTS_CONNECTION_STRING }}
           # Build stamp for public/version.json (scripts/generate-version.js in prebuild);
           # the verify step below polls the deployed file for exactly this commit.
@@ -120,6 +120,18 @@ jobs:
           # Star counter from the step above; empty when the lookup failed.
           NEXT_PUBLIC_GITHUB_STARS: ${{ steps.stars.outputs.count }}
         run: |
+          # All from the endpoint registry (Load endpoints). Empty, the portal would silently call
+          # localhost:7071. The stats manifest is what browsers load the live numbers from, and the
+          # build reads it once to bake the numbers of this moment into the landing page's static
+          # HTML (lib/platformStats.ts). The redirect URIs are only the fallback for the static
+          # render; in the browser lib/msalConfig.ts uses window.location.origin.
+          export NEXT_PUBLIC_API_BASE_URL="$API_BASE_URL"
+          export NEXT_PUBLIC_PLATFORM_STATS_MANIFEST_URL="$STATS_CONTAINER_URL"
+          export NEXT_PUBLIC_ENTRA_REDIRECT_URI="$WWW_BASE_URL"
+          export NEXT_PUBLIC_ENTRA_POST_LOGOUT_REDIRECT_URI="$WWW_BASE_URL"
+          test -n "$NEXT_PUBLIC_API_BASE_URL" || { echo "::error::API_BASE_URL is empty - the portal would call localhost"; exit 1; }
+          test -n "$NEXT_PUBLIC_PLATFORM_STATS_MANIFEST_URL" || { echo "::error::STATS_CONTAINER_URL is empty"; exit 1; }
+          test -n "$NEXT_PUBLIC_ENTRA_REDIRECT_URI" || { echo "::error::WWW_BASE_URL is empty"; exit 1; }
           npm run build
           test -f out/version.json || { echo "out/version.json missing - export did not run"; exit 1; }
           test -f out/whats-new.json || { echo "out/whats-new.json missing - whats-new prebuild did not run"; exit 1; }
@@ -136,19 +148,37 @@ jobs:
           echo "archive=$archive" >> "$GITHUB_OUTPUT"
           sha256sum "$archive"
 
-      # Sigstore keyless provenance: binds the export digest to this workflow run (repo, ref,
-      # commit, workflow file) in a public transparency log.
-      # Verify: gh attestation verify portal-<sha>.tar.gz --repo okieselbach/AutopilotMonitor
-      - name: Attest build provenance (portal export)
-        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4.2.2
-        with:
-          subject-path: ${{ steps.package.outputs.archive }}
-
       - name: Upload build artifact
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
         with:
           name: portal-${{ github.sha }}
           path: ${{ steps.package.outputs.archive }}
+          if-no-files-found: error
+
+  # Holds the SWA deployment token and nothing else -- deliberately no id-token: the SWA CLI
+  # is third-party npm code whose dependencies resolve at run time.
+  deploy:
+    name: Deploy to Static Web App
+    needs: build
+    runs-on: ubuntu-latest
+    environment: production
+
+    steps:
+      # For staticwebapp.config.json only.
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Download build artifact
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: portal-${{ github.sha }}
+          path: ${{ runner.temp }}/portal
+
+      - name: Unpack export
+        run: |
+          mkdir "$WEB_DIR/out"
+          tar -xzf "$RUNNER_TEMP/portal/portal-${GITHUB_SHA::7}.tar.gz" -C "$WEB_DIR/out"
 
       # Upload only -- out/ is already built. --swa-config-location points at the app root,
       # where staticwebapp.config.json lives (next export does not copy it into out/).
@@ -163,6 +193,48 @@ jobs:
             --env production \
             --no-use-keychain
 
+  # Trust zone: only this repository's scripts and pinned actions run here. The deploy
+  # identity trusts the `production` environment, which admits main only.
+  record:
+    name: Attest, verify and record
+    needs: [build, deploy]
+    runs-on: ubuntu-latest
+    environment: production
+    permissions:
+      contents: read
+      id-token: write      # keyless Sigstore signing, OIDC login for the manifest
+      attestations: write  # store the provenance attestation
+
+    steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
+      - name: Download build artifact
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        with:
+          name: portal-${{ github.sha }}
+          path: ${{ runner.temp }}/portal
+
+      - name: Locate the export archive
+        id: archive
+        run: |
+          path="$RUNNER_TEMP/portal/portal-${GITHUB_SHA::7}.tar.gz"
+          test -f "$path" || { echo "::error::Export archive for this commit is missing"; exit 1; }
+          echo "path=$path" >> "$GITHUB_OUTPUT"
+
+      # Sigstore keyless provenance: binds the export digest to this workflow run (repo, ref,
+      # commit, workflow file) in a public transparency log.
+      # Verify: gh attestation verify portal-<sha>.tar.gz --repo okieselbach/AutopilotMonitor
+      - name: Attest build provenance (portal export)
+        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4.2.2
+        with:
+          subject-path: ${{ steps.archive.outputs.path }}
+
       # The CLI reporting success proves the upload, not that the production host serves the
       # new build -- verify against the live /version.json (Cache-Control: no-store via
       # staticwebapp.config.json) before publishing the version manifest.
@@ -176,7 +248,7 @@ jobs:
           while ([DateTime]::UtcNow -lt $deadline) {
             $attempt++
             try {
-              $v = Invoke-RestMethod -Uri '${{ env.PORTAL_VERSION_URL }}' -Method Get -TimeoutSec 30 -Headers @{ 'Cache-Control' = 'no-cache' }
+              $v = Invoke-RestMethod -Uri "$env:PORTAL_BASE_URL/version.json" -Method Get -TimeoutSec 30 -Headers @{ 'Cache-Control' = 'no-cache' }
               if ($v.commit -eq $expectedCommit) {
                 Write-Host "Live after $attempt attempt(s): web @ $($v.commit), built $($v.buildUtc)"
                 exit 0
@@ -190,22 +262,36 @@ jobs:
 
           throw "Portal did not serve commit $expectedCommit within 5 minutes -- deployment not verified, version manifest NOT published"
 
+      - name: Login to Azure (OIDC)
+        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
+        with:
+          client-id: ${{ secrets.AZURE_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
+
       # Cross-component deploy record, written last and only on a verified deploy --
       # same contract as versions/backend.json and versions/mcp.json. docsCommit says which
       # docs revision the live What's new panel was generated from (as for the MCP corpus).
+      # The docs commit comes from the build job, so it arrives as data and is checked
+      # against the shape of a commit id before it is used.
       - name: Publish version manifest
         shell: pwsh
+        env:
+          DOCS_SHA: ${{ needs.build.outputs.docs_sha }}
         run: |
+          if ($env:DOCS_SHA -notmatch '^[0-9a-f]{40}$') {
+            throw "The build job handed over no valid docs commit -- version manifest NOT published."
+          }
           $manifest = [ordered]@{
             component   = 'web'
             commit      = '${{ github.sha }}'.Substring(0, 7)
             deployedUtc = [DateTime]::UtcNow.ToString('o')
             runId       = '${{ github.run_id }}'
-            docsCommit  = '${{ steps.docs.outputs.sha }}'.Substring(0, 7)
+            docsCommit  = $env:DOCS_SHA.Substring(0, 7)
           } | ConvertTo-Json
 
           $authHeaders = & ./.github/scripts/Get-StorageAuthHeaders.ps1
-          $url = "${{ env.VERSIONS_CONTAINER }}/web.json"
+          $url = "$env:VERSIONS_CONTAINER_URL/web.json"
           # no-cache: rotating pointer, must never be served stale by any fronting cache.
           Invoke-RestMethod -Uri $url -Method Put -Headers ($authHeaders + @{ 'x-ms-blob-type' = 'BlockBlob'; 'x-ms-blob-cache-control' = 'no-cache' }) -Body $manifest -ContentType 'application/json' | Out-Null
           Write-Host "Published versions/web.json"

.github/workflows/indexnow-notify.yml

@@ -3,24 +3,34 @@ name: IndexNow Notify (Bing/Yandex)
 on:
   workflow_dispatch:
 
-# The job only talks to public endpoints; it never needs a repository token.
-permissions: {}
+# Read-only, for the checkout of the endpoint registry; beyond that the job only talks to
+# public endpoints.
+permissions:
+  contents: read
 
 jobs:
   notify:
     runs-on: ubuntu-latest
     name: Submit URLs to IndexNow
     steps:
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Load endpoints
+        shell: pwsh
+        run: ./.github/scripts/Get-Endpoints.ps1 -ExportToGitHubEnv
+
       - name: Notify IndexNow
         run: |
-          URLS=$(curl -s https://www.autopilotmonitor.com/sitemap.xml | grep -oP '<loc>\K[^<]+')
+          URLS=$(curl -s "$WWW_BASE_URL/sitemap.xml" | grep -oP '<loc>\K[^<]+')
           URL_JSON=$(echo "$URLS" | jq -R -s 'split("\n") | map(select(length > 0))')
           RESPONSE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "https://api.indexnow.org/indexnow" \
             -H "Content-Type: application/json" \
             -d "{
-              \"host\": \"www.autopilotmonitor.com\",
+              \"host\": \"${WWW_BASE_URL#https://}\",
               \"key\": \"8f1710b5-f14b-477e-938b-6c01ef851661\",
-              \"keyLocation\": \"https://www.autopilotmonitor.com/IndexNow.txt\",
+              \"keyLocation\": \"$WWW_BASE_URL/IndexNow.txt\",
               \"urlList\": $URL_JSON
             }")
           echo "IndexNow response: HTTP $RESPONSE"

.github/workflows/oidc-login-test.yml

@@ -1,28 +0,0 @@
-# TEMPORARY: proves the secret-less OIDC federated login works end-to-end.
-# Delete after the cross-tenant migration is verified (or keep as a cheap smoke test).
-name: OIDC Login Test
-
-on:
-  workflow_dispatch:
-
-permissions:
-  id-token: write
-  contents: read
-
-jobs:
-  login-test:
-    runs-on: ubuntu-latest
-    name: Federated login + read check
-    steps:
-      - name: Login to Azure (OIDC)
-        uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
-        with:
-          client-id: ${{ secrets.AZURE_CLIENT_ID }}
-          tenant-id: ${{ secrets.AZURE_TENANT_ID }}
-          subscription-id: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
-
-      - name: Prove identity and RBAC scope
-        run: |
-          az account show --query "{subscription:name, subscriptionId:id, tenantId:tenantId, user:user.name}" -o json
-          echo "--- function app visible with Contributor scope? ---"
-          az functionapp list --query "[].name" -o json

.github/workflows/pester.yml

@@ -14,7 +14,12 @@ on:
       - 'scripts/Bootstrap/**'
       - 'scripts/CustomerSetup/**'
       - '.github/scripts/Publish-BootstrapScripts.ps1'
+      - '.github/scripts/Invoke-BootstrapSystemPass.ps1'
+      - '.github/scripts/Test-BootstrapAttacker.ps1'
       - '.github/workflows/bootstrap-script-gates.yml'
+      # The integration tests run the generated OOBE script and the MSI's command line.
+      - 'src/Backend/AutopilotMonitor.Functions.Tests/TestData/oobe-bootstrap-golden.ps1'
+      - 'src/Agent/AutopilotMonitor.BootstrapMsi/Package.wxs'
   workflow_dispatch:
 
 permissions:

.github/workflows/publish-scripts.yml

@@ -23,6 +23,14 @@ on:
         required: true
         type: boolean
         default: false
+      channel:
+        description: 'release: every script. dev: only the two -Dev scripts, to try a change on dev devices first'
+        required: true
+        type: choice
+        options:
+          - release
+          - dev
+        default: release
 
 permissions:
   contents: read
@@ -36,13 +44,13 @@ concurrency:
 
 # Authenticode for the customer scripts. Same identity and same repository variables as
 # build-agent.yml -- the loader on every device pins this publisher, so the two must not
-# drift apart.
+# drift apart. The publisher takes every host, the timestamp server included, from
+# .github/scripts/Get-Endpoints.ps1.
 env:
   CODE_SIGN_CLIENT_ID: ${{ vars.CODE_SIGN_CLIENT_ID }}
   CODE_SIGN_CERTIFICATE_NAME: ${{ vars.CODE_SIGN_CERTIFICATE_NAME }}
   CODE_SIGN_KEY_VAULT_URL: ${{ vars.CODE_SIGN_KEY_VAULT_URL }}
   CODE_SIGN_EXPECTED_SUBJECT: ${{ vars.CODE_SIGN_EXPECTED_SUBJECT }}
-  CODE_SIGN_TIMESTAMP_URL: http://timestamp.acs.microsoft.com
 
 jobs:
   # $/ is the self-repository form: this repository at the running commit, never a
@@ -54,6 +62,8 @@ jobs:
     name: Publish to the download alias
     needs: gates
     runs-on: windows-latest
+    # Both identities trust only the `release` environment, which admits main only.
+    environment: release
     # Job-scoped: only the publish job federates to Azure, the gates job never holds an
     # OIDC token it does not need.
     permissions:
@@ -74,9 +84,7 @@ jobs:
           }
 
       # First, and only to fetch the Key Vault token: azure/login sets the default az
-      # account and the storage login below has to be the one that stays. See D-223 --
-      # both federated credentials are bound to the ref, so this job must never carry a
-      # GitHub `environment:`.
+      # account and the storage login below has to be the one that stays.
       - name: Login to Azure (code-signing identity)
         uses: azure/login@a641126d1b8aa4d1fa005f4f92df94a3a4c4c906 # v3.1.0
         with:
@@ -113,18 +121,20 @@ jobs:
           DOTNET_ROLL_FORWARD: LatestMajor
         run: dotnet tool install --no-cache --global AzureSignTool --version 7.0.1
 
+      # A push publishes the release channel; only a dispatch can choose dev.
       - name: Publish bootstrap + customer scripts
         shell: pwsh
         env:
           DOTNET_ROLL_FORWARD: LatestMajor
+          PUBLISH_CHANNEL: ${{ inputs.channel || 'release' }}
         run: |
           $dryRun = '${{ inputs.dry_run }}' -eq 'true'
           ./.github/scripts/Publish-BootstrapScripts.ps1 `
+            -Channel $env:PUBLISH_CHANNEL `
             -LegacySasToken '${{ secrets.AZURE_BLOB_AGENT_LEGACY_SAS_TOKEN }}' `
             -SigningToken $env:CODE_SIGN_AKV_ACCESS_TOKEN `
             -KeyVaultUrl $env:CODE_SIGN_KEY_VAULT_URL `
             -CertificateName $env:CODE_SIGN_CERTIFICATE_NAME `
-            -TimestampUrl $env:CODE_SIGN_TIMESTAMP_URL `
             -ExpectedPublisher $env:CODE_SIGN_EXPECTED_SUBJECT `
             -SignedOutputDir "$env:RUNNER_TEMP/signed-scripts" `
             -DryRun:$dryRun

rules/analyze/ANALYZE-APP-001.json

@@ -5,7 +5,7 @@
   "description": "Detects when a Win32 app detection script fails or returns unexpected results.",
   "severity": "warning",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -38,6 +38,26 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{detection_failure.appName}} was not detected after its install",
+    "subject": {
+      "kind": "app",
+      "key": "{{detection_failure.appId}}",
+      "name": "{{detection_failure.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Detection",
+        "value": "{{detection_failure.value}}"
+      },
+      {
+        "label": "Error",
+        "value": "{{detection_failure.errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "detection",

rules/analyze/ANALYZE-APP-002.json

@@ -5,7 +5,7 @@
   "description": "Detects app installation failures with specific exit codes or HRESULT error codes and suggests fixes.",
   "severity": "high",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -41,6 +41,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{install_error.appName}} failed to install",
+    "subject": {
+      "kind": "app",
+      "key": "{{install_error.appId}}",
+      "name": "{{install_error.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Exit code",
+        "value": "{{install_error.exitCode}}",
+        "format": "code"
+      },
+      {
+        "label": "Error",
+        "value": "{{install_error.errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "msi",

rules/analyze/ANALYZE-APP-003.json

@@ -33,9 +33,25 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{dependency_failure.appName}} failed because a dependency did not install",
+    "subject": {
+      "kind": "app",
+      "key": "{{dependency_failure.appId}}",
+      "name": "{{dependency_failure.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Error",
+        "value": "{{dependency_failure.errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "dependency"
   ],
-  "version": "1.1.0"
+  "version": "1.2.0"
 }

rules/analyze/ANALYZE-APP-004.json

@@ -5,7 +5,7 @@
   "description": "Detects when disk space is critically low during enrollment, which can cause app installation failures. Confidence increases when app installations actually failed while disk space was low.",
   "severity": "critical",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -71,6 +71,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "Free disk space dropped to {{low_disk.value}} GB",
+    "subject": {
+      "kind": "device",
+      "key": "disk",
+      "name": "Disk space"
+    },
+    "facts": [
+      {
+        "label": "Free space (GB)",
+        "value": "{{low_disk.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Measured",
+        "value": "{{low_disk.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "disk-space",

rules/analyze/ANALYZE-APP-005.json

@@ -33,10 +33,26 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "The content download of {{download_timeout.appName}} timed out or failed",
+    "subject": {
+      "kind": "app",
+      "key": "{{download_timeout.appId}}",
+      "name": "{{download_timeout.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Error",
+        "value": "{{download_timeout.errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "download",
     "timeout"
   ],
-  "version": "1.1.0"
+  "version": "1.2.0"
 }

rules/analyze/ANALYZE-APP-006.json

@@ -5,7 +5,7 @@
   "description": "Detects when the same app installation is attempted 3 or more times during one enrollment — a retry loop caused by unhonored reboot requests, repeated failures, or detection mismatches.",
   "severity": "high",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -35,6 +35,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{install_retry_loop.appName}} was started {{install_retry_loop.count}} times",
+    "subject": {
+      "kind": "app",
+      "key": "{{install_retry_loop.groupKey}}",
+      "name": "{{install_retry_loop.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Install starts",
+        "value": "{{install_retry_loop.count}}",
+        "format": "number"
+      },
+      {
+        "label": "First start",
+        "value": "{{install_retry_loop.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "reboot",

rules/analyze/ANALYZE-APP-007.json

@@ -5,7 +5,7 @@
   "description": "Detects when the app tracking summary reports multiple failed app installations.",
   "severity": "high",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -50,6 +50,17 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{summary_errors.value}} app installations failed",
+    "facts": [
+      {
+        "label": "Failed apps",
+        "value": "{{summary_errors.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "summary",

rules/analyze/ANALYZE-APP-008.json

@@ -32,11 +32,32 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{slow_app_install.appName}} took {{slow_app_install.durationFormatted}} to install",
+    "subject": {
+      "kind": "app",
+      "key": "{{slow_app_install.appId}}",
+      "name": "{{slow_app_install.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Install time",
+        "value": "{{slow_app_install.durationSeconds}}",
+        "format": "duration"
+      },
+      {
+        "label": "Started",
+        "value": "{{slow_app_install.startTimestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "performance",
     "slow-install",
     "warning"
   ],
-  "version": "1.1.0"
+  "version": "1.2.0"
 }

rules/analyze/ANALYZE-APP-010.json

@@ -1,6 +1,7 @@
 {
   "$schema": "../schema/analyze-rule.schema.json",
   "ruleId": "ANALYZE-APP-010",
+  "version": "1.1.0",
   "title": "App Reverted to Error After Successful Install",
   "description": "Detects when a specific app (matched by appId) was first reported as successfully installed but subsequently reported an IME enforcement error — while enrollment completed successfully. The app may be broken post-enrollment.",
   "severity": "warning",
@@ -56,5 +57,31 @@
     { "title": "Troubleshoot Win32 app installations", "url": "https://learn.microsoft.com/en-us/troubleshoot/mem/intune/app-management/troubleshoot-win32-app-install" },
     { "title": "Intune Management Extension logs", "url": "https://learn.microsoft.com/en-us/mem/intune/apps/intune-management-extension" }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{app_regression.eventA_appName}} installed, then reported an error",
+    "subject": {
+      "kind": "app",
+      "key": "{{app_regression.joinValue}}",
+      "name": "{{app_regression.eventA_appName}}"
+    },
+    "facts": [
+      {
+        "label": "Installed",
+        "value": "{{app_regression.eventA_timestamp}}",
+        "format": "timestamp"
+      },
+      {
+        "label": "Error after",
+        "value": "{{app_regression.timeDeltaSeconds}}",
+        "format": "duration"
+      },
+      {
+        "label": "Error",
+        "value": "{{app_regression.eventB_errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": ["apps", "win32", "enforcement", "post-install", "correlation"]
 }

rules/analyze/ANALYZE-APP-012.json

@@ -43,6 +43,32 @@
       "url": "https://learn.microsoft.com/en-us/mem/intune/apps/apps-win32-app-management#step-4-return-codes"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "{{enforcement_error_resolved.eventA_appName}} reported an install error but was detected as installed",
+    "subject": {
+      "kind": "app",
+      "key": "{{enforcement_error_resolved.joinValue}}",
+      "name": "{{enforcement_error_resolved.eventA_appName}}"
+    },
+    "facts": [
+      {
+        "label": "Exit code",
+        "value": "{{enforcement_error_resolved.eventA_exitCode}}",
+        "format": "code"
+      },
+      {
+        "label": "Error",
+        "value": "{{enforcement_error_resolved.eventA_errorCode}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Detected installed after",
+        "value": "{{enforcement_error_resolved.timeDeltaSeconds}}",
+        "format": "duration"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "enforcement",
@@ -50,5 +76,5 @@
     "unmapped",
     "resolved"
   ],
-  "version": "1.1.0"
+  "version": "1.2.0"
 }

rules/analyze/ANALYZE-APP-013.json

@@ -5,7 +5,7 @@
   "description": "Detects when the Enrollment Status Page failed because Intune could not verify an app was installed (HRESULT 0x87D1041C). The installer ran but the detection rule did not match afterwards.",
   "severity": "critical",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -82,6 +82,26 @@
       "url": "https://learn.microsoft.com/en-us/mem/intune/apps/apps-win32-add#step-4-detection-rules"
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{app_with_detection_failure.appName}} installed, but its detection rule did not find it",
+    "subject": {
+      "kind": "app",
+      "key": "{{app_with_detection_failure.appId}}",
+      "name": "{{app_with_detection_failure.appName}}"
+    },
+    "facts": [
+      {
+        "label": "ESP error",
+        "value": "{{esp_failure_errorcode.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Detection",
+        "value": "{{app_with_detection_failure.value}}"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "detection",

rules/analyze/ANALYZE-APP-014.json

@@ -5,7 +5,7 @@
   "description": "Detects when the Enrollment Status Page failed on the Apps subcategory and the agent's AppX deployment log scan identified a suspected MSIX/Store package. Store/MSIX apps install outside the Win32 pipeline, so the regular per-app tracking sees nothing — this correlation names the likely culprit.",
   "severity": "warning",
   "category": "apps",
-  "version": "1.2.1",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -123,6 +123,36 @@
       "url": "https://learn.microsoft.com/en-us/mem/intune/apps/store-apps-microsoft"
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "A Store or MSIX app failed during the ESP: {{appx_candidate.value}}",
+    "subject": {
+      "kind": "app",
+      "key": "{{appx_candidate.value}}",
+      "name": "{{appx_candidate.value}}"
+    },
+    "facts": [
+      {
+        "label": "ESP error",
+        "value": "{{appx_esp_errorcode.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "ESP phase",
+        "value": "{{appx_esp_category.value}}"
+      },
+      {
+        "label": "Package",
+        "value": "{{appx_top_candidate_package.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Candidates",
+        "value": "{{appx_candidate_count.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "appx",

rules/analyze/ANALYZE-APP-015.json

@@ -5,7 +5,7 @@
   "description": "The IME reported its user-session completion line, but at least one required app stayed pending — without ever failing or even starting to install — so the agent kept deferring the enrollment completion signal. Typically an assignment/requirement problem (requirement rules never met, dependency never satisfied, or the app needs a context that is not available during ESP, e.g. a VPN client waiting for user sign-in to a portal).",
   "severity": "high",
   "category": "apps",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "trigger": "correlation",
@@ -76,5 +76,20 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "Completion waited on {{apps_pending.value}} pending app(s)",
+    "facts": [
+      {
+        "label": "Pending apps",
+        "value": "{{apps_pending.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Apps",
+        "value": "{{pending_app_names.value}}"
+      }
+    ]
+  },
   "tags": ["apps", "esp", "completion", "assignment", "pending"]
 }

rules/analyze/ANALYZE-APP-016.json

@@ -5,7 +5,7 @@
   "description": "One or more required user-ESP apps never started installing while the ESP AccountSetup apps gate waited on them — the agent observed the ESP page exit with those apps still in a non-terminal, never-started state. Unlike ANALYZE-APP-015 (which reports that completion was DEFERRED because of a pending app, and stays silent once the session reaches a terminal verdict) this rule reports the delivery gap itself and fires regardless of the final outcome: an enrollment that Windows called done while required apps never ran is a successful enrollment with missing software, and the operator must see it.",
   "severity": "warning",
   "category": "apps",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -102,6 +102,26 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "Required apps never started installing; first: {{appName.value}}",
+    "subject": {
+      "kind": "app",
+      "key": "{{appName.appId}}",
+      "name": "{{appName.value}}"
+    },
+    "facts": [
+      {
+        "label": "First app",
+        "value": "{{appName.value}}"
+      },
+      {
+        "label": "State",
+        "value": "{{state.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "esp",

rules/analyze/ANALYZE-APP-017.json

@@ -5,7 +5,7 @@
   "description": "Detects Win32 app installs that failed because the Windows Installer was busy with another installation (HRESULT 0x80070652 / MSI exit code 1618, ERROR_INSTALL_ALREADY_RUNNING). The IME retries on a fixed budget (~15-17 minutes across several attempts) and then reports the app as failed; when the app is ESP-blocking, the Device Setup Apps subcategory terminates with it.",
   "severity": "high",
   "category": "apps",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "baseConfidence": 70,
@@ -81,6 +81,27 @@
       "url": "https://learn.microsoft.com/en-us/troubleshoot/mem/intune/app-management/troubleshoot-win32-app-install"
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "{{mutex_blocked_install.appName}} was blocked by another installation",
+    "subject": {
+      "kind": "app",
+      "key": "{{mutex_blocked_install.appId}}",
+      "name": "{{mutex_blocked_install.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Exit code",
+        "value": "{{installer_exit_1618.value}}",
+        "format": "code"
+      },
+      {
+        "label": "ESP error",
+        "value": "{{esp_failed_with_mutex_code.value}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "msiexec",

rules/analyze/ANALYZE-APP-018.json

@@ -5,7 +5,7 @@
   "description": "Detects Win32 apps whose installer exit code maps to Soft reboot or Hard reboot in the app's Intune return-code table (the '[Win32App] lpExitCode is defined as ...' line). Hard reboot stops app processing and restarts the device in Device Setup - the mid-enrollment restart and second sign-in; Soft reboot leaves the app pending until the next restart while the ESP moves on. Confidence rises for Hard reboot and when a reboot was actually observed in the session.",
   "severity": "warning",
   "category": "apps",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -86,6 +86,31 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "{{reboot_return_code.appName}} asked for a restart",
+    "subject": {
+      "kind": "app",
+      "key": "{{reboot_return_code.appId}}",
+      "name": "{{reboot_return_code.appName}}"
+    },
+    "facts": [
+      {
+        "label": "Return code",
+        "value": "{{reboot_return_code.exitCode}}",
+        "format": "code"
+      },
+      {
+        "label": "Return code class",
+        "value": "{{reboot_return_code.value}}"
+      },
+      {
+        "label": "Restarts",
+        "value": "{{reboot_observed.count}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "reboot",

rules/analyze/ANALYZE-CORR-003.json

@@ -5,7 +5,7 @@
   "description": "Correlates an active proxy configuration with app content download failures (Delivery Optimization timeout or download error), suggesting the proxy is blocking or throttling Intune content delivery.",
   "severity": "high",
   "category": "apps",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -67,6 +67,30 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "App downloads failed while a {{proxy_active.value}} proxy was configured",
+    "subject": {
+      "kind": "network",
+      "key": "proxy",
+      "name": "Proxy"
+    },
+    "facts": [
+      {
+        "label": "Proxy type",
+        "value": "{{proxy_active.value}}"
+      },
+      {
+        "label": "Failed app",
+        "value": "{{download_failure.appName}}"
+      },
+      {
+        "label": "Error",
+        "value": "{{download_failure.errorCode}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "correlation",
     "apps",

rules/analyze/ANALYZE-DEV-001.json

@@ -5,7 +5,7 @@
   "description": "Detects when Windows Hello for Business provisioning did not start within the expected timeframe after ESP completion.",
   "severity": "warning",
   "category": "device",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "baseConfidence": 60,
   "conditions": [
@@ -30,5 +30,21 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "Windows Hello provisioning did not start in time",
+    "subject": {
+      "kind": "device",
+      "key": "windows-hello",
+      "name": "Windows Hello"
+    },
+    "facts": [
+      {
+        "label": "Timed out",
+        "value": "{{hello_timeout.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": ["device", "hello", "timeout"]
 }

rules/analyze/ANALYZE-DEV-002.json

@@ -5,7 +5,7 @@
   "description": "Detects when memory usage stays above 90% across at least 3 performance snapshots during enrollment, indicating sustained memory pressure that can cause app installation failures or system instability.",
   "severity": "warning",
   "category": "device",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -65,6 +65,22 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "context",
+    "summary": "Memory use was above 90% in {{sustained_high_memory.count}} snapshots",
+    "subject": {
+      "kind": "device",
+      "key": "memory",
+      "name": "Memory"
+    },
+    "facts": [
+      {
+        "label": "Snapshots above 90%",
+        "value": "{{sustained_high_memory.count}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "device",
     "memory",

rules/analyze/ANALYZE-DEV-003.json

@@ -5,7 +5,7 @@
   "description": "Detects devices enrolling with an OS build that has reached end of support: Windows 11 22H2 (build 22621) or older, which includes every Windows 10 build. Maintenance note: raise the build cutoff to 22631 after Windows 11 23H2 reaches end of support on 2026-11-10.",
   "severity": "warning",
   "category": "device",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -56,6 +56,26 @@
       "url": "https://learn.microsoft.com/en-us/lifecycle/products/windows-11-home-and-pro"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Windows build {{old_build.value}} is out of support",
+    "subject": {
+      "kind": "device",
+      "key": "os",
+      "name": "Windows version"
+    },
+    "facts": [
+      {
+        "label": "OS",
+        "value": "{{os_version.value}}"
+      },
+      {
+        "label": "Build",
+        "value": "{{old_build.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "device",
     "os-version",

rules/analyze/ANALYZE-DEV-004.json

@@ -5,7 +5,7 @@
   "description": "Detects a Windows quality/cumulative update that FAILED to install or download during the OOBE / ESP enrollment window (WindowsUpdateClient EventID 20 from the System log, 31 from the Operational channel). A cumulative update failing mid-OOBE is a known cause of enrollment errors and is otherwise invisible in the Intune console.",
   "severity": "high",
   "category": "device",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -113,6 +113,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "A Windows update failed during setup: {{wu_update_title.value}}",
+    "subject": {
+      "kind": "device",
+      "key": "windows-update",
+      "name": "Windows Update"
+    },
+    "facts": [
+      {
+        "label": "Error",
+        "value": "{{wu_hresult.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Symbol",
+        "value": "{{wu_hresult_symbol.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-DEV-005.json

@@ -5,7 +5,7 @@
   "description": "Informational: a Windows quality/cumulative update installed during the OOBE / ESP enrollment window (WindowsUpdateClient EventID 19). Surfaces updates applied mid-enrollment — useful context when correlating enrollment duration, reboots, or later issues with a specific KB.",
   "severity": "info",
   "category": "device",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -61,6 +61,22 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "A Windows update installed during setup: {{wu_update_title.value}}",
+    "subject": {
+      "kind": "device",
+      "key": "windows-update",
+      "name": "Windows Update"
+    },
+    "facts": [
+      {
+        "label": "Installed",
+        "value": "{{wu_installed.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-DEV-006.json

@@ -5,7 +5,7 @@
   "description": "Informational: the OS build (CurrentBuild.UBR) changed across a reboot during enrollment — an update was installed, regardless of which servicing path delivered it. Deterministic corroboration that works even when the Windows Update event channel shows nothing (registry comparison across restart cannot be lost to timing or logging-path differences).",
   "severity": "info",
   "category": "device",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -69,6 +69,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "Windows was updated from build {{previous_build.value}} to {{current_build.value}}",
+    "subject": {
+      "kind": "device",
+      "key": "os",
+      "name": "Windows version"
+    },
+    "facts": [
+      {
+        "label": "Build before",
+        "value": "{{previous_build.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Build after",
+        "value": "{{current_build.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-DEV-007.json

@@ -5,7 +5,7 @@
   "description": "The device's real-time clock deviates from NTP by more than two minutes. Microsoft documents that a clock off by several minutes causes TPM attestation errors (self-deploying/pre-provisioning) and ESP timeouts.",
   "severity": "warning",
   "category": "device",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -59,6 +59,26 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "subject": {
+      "kind": "device",
+      "key": "clock",
+      "name": "System clock"
+    },
+    "facts": [
+      {
+        "label": "Clock offset (s)",
+        "value": "{{clock_behind.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Clock offset (s)",
+        "value": "{{clock_ahead.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "device",
     "ntp",

rules/analyze/ANALYZE-DEV-008.json

@@ -5,7 +5,7 @@
   "description": "The device's clock changed by five or more minutes mid-session (clock jump) or ran five or more minutes off server time for the whole session (sustained offset), measured against the server receive frame of every uploaded event. Complements ANALYZE-DEV-007, which is a one-shot NTP check at agent startup and misses devices where NTP was unreachable or the clock changed later. IME-log-derived events are excluded from the measurement.",
   "severity": "warning",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -57,6 +57,26 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "subject": {
+      "kind": "device",
+      "key": "clock",
+      "name": "System clock"
+    },
+    "facts": [
+      {
+        "label": "Clock jump (min)",
+        "value": "{{clock_jump.jumpMinutes}}",
+        "format": "number"
+      },
+      {
+        "label": "Clock offset (min)",
+        "value": "{{sustained_offset.offsetMinutes}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "device",
     "clock-skew",

rules/analyze/ANALYZE-DEV-009.json

@@ -5,7 +5,7 @@
   "description": "Detects that the device's battery dropped to 15% or less while enrolling on battery power (power_state_change threshold event from the agent's live power watcher). A device dying mid-enrollment leaves a half-provisioned state that typically needs a full reset; this rule surfaces the risk while there is still time to plug the device in. Uses a single required condition on the agent-stamped thresholdPercent field (the data field 'transition' on the event is unrelated to this rule's 'trigger' property).",
   "severity": "high",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -39,6 +39,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "The battery fell below {{battery_threshold_15.value}}% during setup",
+    "subject": {
+      "kind": "device",
+      "key": "power",
+      "name": "Power"
+    },
+    "facts": [
+      {
+        "label": "Battery below (%)",
+        "value": "{{battery_threshold_15.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Reported",
+        "value": "{{battery_threshold_15.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "device",
     "power",

rules/analyze/ANALYZE-DEV-010.json

@@ -5,7 +5,7 @@
   "description": "Detects that the device lost AC power and switched to battery while the enrollment was running (power_state_change event with transition ac_to_battery from the agent's live power watcher). Uses a single required condition so the match is pinned to one event instance; the event payload carries the battery percentage at the moment of the switch. The agent debounces power flapping (5s) so a brief unplug/replug does not produce this event.",
   "severity": "warning",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -39,6 +39,22 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "The device switched from AC to battery power during setup",
+    "subject": {
+      "kind": "device",
+      "key": "power",
+      "name": "Power"
+    },
+    "facts": [
+      {
+        "label": "Switched",
+        "value": "{{switched_to_battery.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "device",
     "power",

rules/analyze/ANALYZE-DEV-012.json

@@ -5,7 +5,7 @@
   "description": "Detects that the device completed a sleep, hibernate or Modern Standby episode of at least 5 minutes while the enrollment was running (system_sleep_episode event from the agent's system timeline watcher, recorded retroactively at wake from the Windows event log). The watcher also backfills pre-agent episodes from the last 24 h for timeline context (backfilled=true); those ended before the enrollment started and are excluded via the same-event filter backfilled equals false — a separate condition could not do that, because each condition scans all events on its own and a pre-session hibernate would still satisfy the duration test. A single required condition keeps the match pinned to one event instance so the interpolated duration is the matched value. Short Modern Standby screen-off scenarios (under 60 s of real sleep) never emit the event, and this rule adds a 5-minute floor so brief lid-close moments do not fire it.",
   "severity": "info",
   "category": "device",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -42,6 +42,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "The device went to sleep during setup",
+    "subject": {
+      "kind": "device",
+      "key": "power",
+      "name": "Power"
+    },
+    "facts": [
+      {
+        "label": "Asleep for",
+        "value": "{{slept_during_enrollment.value}}",
+        "format": "duration"
+      },
+      {
+        "label": "Recorded",
+        "value": "{{slept_during_enrollment.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "device",
     "power",

rules/analyze/ANALYZE-DEV-013.json

@@ -5,7 +5,7 @@
   "description": "Detects that the Windows quality update page at the end of OOBE (Enrollment Status Page setting \"Install Windows quality updates\") reported a failed download or install and recorded no successful install afterwards — the page's own failure names on the oobe_update_page events. Setup usually continues, so the failure is otherwise invisible: the device finishes OOBE without the monthly security update. An OS build change across a restart (os_build_changed) vetoes the finding, and so does the agent's names_capped marker — once the page's event names were capped, a missing success name proves nothing. A downloadInstallFailureHelper entry alone is no failure: updates that installed fine log it too.",
   "severity": "warning",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end"
@@ -109,6 +109,22 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "The Windows quality update at the end of OOBE failed",
+    "subject": {
+      "kind": "device",
+      "key": "oobe-update",
+      "name": "OOBE quality update"
+    },
+    "facts": [
+      {
+        "label": "Failed step",
+        "value": "{{update_failure.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-DEV-014.json

@@ -5,7 +5,7 @@
   "description": "Detects that the Windows quality update page at the end of OOBE found no update to install although the device is out of date, on a device whose update page counts an earlier failed download or install (oobe_update_page: NDUPDownloadInstallPreviousFailureCount above 0, osUpdatesWithNDUPPI false, getDaysOutOfDateSucceeded above 0). No failure and no install success are recorded in this session — a failure in this session is ANALYZE-DEV-013 — and the agent's names_capped marker vetoes the finding, because a missing name proves nothing once the page's names were capped. The device finishes OOBE without the monthly security update.",
   "severity": "warning",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end"
@@ -110,6 +110,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "No quality update was offered although the device is {{days_out_of_date.value}} days out of date",
+    "subject": {
+      "kind": "device",
+      "key": "oobe-update",
+      "name": "OOBE quality update"
+    },
+    "facts": [
+      {
+        "label": "Days out of date",
+        "value": "{{days_out_of_date.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Earlier update failures",
+        "value": "{{previous_failures.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-DEV-015.json

@@ -5,7 +5,7 @@
   "description": "Detects that the Windows quality update page at the end of OOBE started its Windows Update scan but ended without a scan result (oobe_update_page: startWUScanStartedSuccedded, an OobeNDUP stop and no ExpeditedUpdate_getUpdateResults name), on a device that is out of date and allowed to update. In the observed sessions the page ended two minutes after the scan started, on devices more than a year behind. The device finishes OOBE without the monthly security update. The agent's names_capped marker vetoes the finding: once the page's event names were capped, a missing scan result proves nothing.",
   "severity": "warning",
   "category": "device",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end"
@@ -108,6 +108,22 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "The OOBE update check ended without a result",
+    "subject": {
+      "kind": "device",
+      "key": "oobe-update",
+      "name": "OOBE quality update"
+    },
+    "facts": [
+      {
+        "label": "Days out of date",
+        "value": "{{days_out_of_date.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "device",
     "windows-update",

rules/analyze/ANALYZE-ENRL-001.json

@@ -5,7 +5,7 @@
   "description": "Detects when the Autopilot enrollment has explicitly failed.",
   "severity": "critical",
   "category": "enrollment",
-  "version": "1.1.2",
+  "version": "1.2.0",
   "enabled": true,
   "baseConfidence": 95,
   "conditions": [
@@ -57,19 +57,40 @@
   "confidenceFactors": [
     { "signal": "failed_app", "condition": "exists", "weight": 5 }
   ],
-  "explanation": "The Autopilot enrollment has explicitly failed.\n\n**Key facts extracted from this session's events:**\n\n- **Failure reason:** `{{reason}}`\n- **First failed app:** `{{appName}}`\n- **ESP failed subcategory:** `{{failedSubcategory}}`\n- **ESP HRESULT:** `{{errorCode}}`\n\nWhen an ESP Apps-subcategory failure is paired with HRESULT `0x87D1041C`, the device-side install most likely completed but the Intune detection rule did not match afterwards — see the **App Detection Failure During ESP** rule (ANALYZE-APP-013) in this same analysis for the actionable root cause and remediation steps. Any field still shown as a literal `{{…}}` placeholder was simply not recorded for this session — for example, a non-ESP failure path has no ESP failed-subcategory or HRESULT.",
+  "explanation": "The Autopilot enrollment has explicitly failed.\n\n**Key facts from this session's events:**\n\n- **Failure reason:** `{{reason}}`\n- **First failed app:** `{{appName}}`\n- **ESP step that failed:** `{{failedSubcategory}}`\n- **ESP error code:** `{{errorCode}}`\n\nA more specific finding in this analysis usually names the cause, such as an app, ESP or timeout finding.",
   "remediation": [
     {
-      "title": "Investigate enrollment failure",
+      "title": "Find the cause",
       "steps": [
-        "Start with the more specific ANALYZE-APP-* / ANALYZE-ESP-* rules that fired alongside this one — they correlate specific HRESULTs to actionable causes (e.g. 0x87D1041C → detection rule mismatch in ANALYZE-APP-013)",
-        "Read the `reason` field on the enrollment_failed event for the immediate trigger (e.g. esp_terminal_failure, hello_timeout, max_lifetime)",
-        "If a HRESULT is present, look it up against the ESP error catalog (Microsoft Learn: Autopilot ESP error codes)",
-        "Review other analyze rule results for correlated issues (disk space, network, app failures)",
-        "Check the device event timeline for the sequence of events leading to failure",
-        "Verify the Autopilot profile and ESP configuration in Intune"
+        "Open the finding in this analysis that names the cause (an app, ESP or timeout finding) and follow its steps",
+        "If no other finding fired, look up the ESP error code and check the failed ESP step in the session timeline",
+        "Verify the Autopilot profile and the ESP settings in Intune"
       ]
     }
   ],
+  "presentation": {
+    "role": "outcome",
+    "summary": "The enrollment failed at the ESP step {{esp_failure_subcategory.value}} with {{esp_failure_errorcode.value}}",
+    "facts": [
+      {
+        "label": "Reason",
+        "value": "{{enrollment_failed_reason.value}}",
+        "format": "code"
+      },
+      {
+        "label": "ESP step",
+        "value": "{{esp_failure_subcategory.value}}"
+      },
+      {
+        "label": "ESP error",
+        "value": "{{esp_failure_errorcode.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "First failed app",
+        "value": "{{failed_app.appName}}"
+      }
+    ]
+  },
   "tags": ["enrollment", "failed", "critical"]
 }

rules/analyze/ANALYZE-ENRL-002.json

@@ -2,10 +2,10 @@
   "$schema": "../schema/analyze-rule.schema.json",
   "ruleId": "ANALYZE-ENRL-002",
   "title": "Session Timed Out",
-  "description": "Detects when the enrollment session was force-failed by the server-side inactivity timeout (no agent telemetry for the configured SessionTimeoutHours window) without ever completing or explicitly failing.",
+  "description": "Detects when the server-side inactivity timeout closed the enrollment session (no agent telemetry for the configured SessionTimeoutHours window) before it ever completed or explicitly failed.",
   "severity": "high",
   "category": "enrollment",
-  "version": "1.2.0",
+  "version": "1.4.0",
   "enabled": true,
   "baseConfidence": 80,
   "preconditions": [
@@ -20,6 +20,12 @@
       "eventType": "enrollment_failed",
       "operator": "not_exists",
       "description": "Suppress when an explicit enrollment_failed exists — that path is already covered by ANALYZE-ENRL-001; avoid double-reporting the same session."
+    },
+    {
+      "source": "event_data",
+      "eventType": "device_blocked",
+      "operator": "not_exists",
+      "description": "Suppress when the platform blocked the session's device: the silence is the refused uploads, which ANALYZE-ENRL-006 explains — 'the agent died or the device went offline' would be wrong."
     }
   ],
   "conditions": [
@@ -58,7 +64,7 @@
       "required": false
     }
   ],
-  "explanation": "The enrollment session was force-failed by the server-side maintenance sweep after `{{timeoutHours}}` hour(s) of agent inactivity — the device stopped sending telemetry and never reported completion or an explicit failure.\n\nThis usually means the agent process died or the device went offline mid-enrollment (power off, network loss, bluescreen, reimage) rather than a clean enrollment failure. Because there is no terminal `enrollment_failed` event, the more specific app/ESP rules cannot pinpoint a cause — the evidence simply stops at the last event before the gap.\n\n**If the evidence shows the user desktop was reached and all tracked apps completed**, the device most likely got all its content but the ESP never signaled completion — on hybrid-joined devices the usual culprit is the user session never establishing Entra affinity (Account Setup re-running on every logon). Check whether the hybrid user-affinity finding also fired for this session.",
+  "explanation": "The server-side maintenance sweep closed this session after `{{timeoutHours}}` hour(s) of agent inactivity — the device stopped sending telemetry and never reported completion or an explicit failure.\n\nThis usually means the agent process died or the device went offline mid-enrollment (power off, network loss, bluescreen, reimage) rather than a clean enrollment failure. Because there is no terminal `enrollment_failed` event, the more specific app/ESP rules cannot pinpoint a cause — the evidence simply stops at the last event before the gap.\n\n**If the evidence shows the user desktop was reached and all tracked apps completed**, the device most likely got all its content but the ESP never signaled completion — on hybrid-joined devices the usual culprit is the user session never establishing Entra affinity (Account Setup re-running on every logon). Check whether the hybrid user-affinity finding also fired for this session.",
   "remediation": [
     {
       "title": "Investigate the silent session",
@@ -78,5 +84,21 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "outcome",
+    "summary": "No completion or failure arrived within {{timeoutHours.value}} hours",
+    "facts": [
+      {
+        "label": "Timeout (hours)",
+        "value": "{{timeoutHours.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Desktop reached",
+        "value": "{{desktop_was_reached.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": ["enrollment", "timeout", "stalled"]
 }

rules/analyze/ANALYZE-ENRL-003.json

@@ -5,7 +5,7 @@
   "description": "A TPM-attestation-related error code documented in the Microsoft Autopilot known-issues list was observed (0x800705B4, 0x801C03EA, 0x81039001, 0x81039023, 0x81039024, 0x80070490). These block self-deploying and pre-provisioning deployments during 'Securing your hardware'. Observability: attestation precedes MDM enrollment, so in the normal deployment model (agent installed via IME after enrollment) these codes are rarely visible — the rule primarily serves bootstrap-token deployments.",
   "severity": "high",
   "category": "enrollment",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -80,6 +80,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "TPM attestation failed with a known Autopilot error code",
+    "subject": {
+      "kind": "device",
+      "key": "tpm",
+      "name": "TPM attestation"
+    },
+    "facts": [
+      {
+        "label": "Error code",
+        "value": "{{tpm_hresult_esp_failure.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Error code",
+        "value": "{{tpm_hresult_esp_advisory.value}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "enrollment",
     "tpm",

rules/analyze/ANALYZE-ENRL-004.json

@@ -5,7 +5,7 @@
   "description": "An enrollment-blocking error code documented in the Microsoft Autopilot known-issues/troubleshooting pages was observed (0x80180014, 0x80180018, 0xC1036501, 0x801C03F3, 0x80070774). Each has a specific, documented cause and fix. Observability: a blocked MDM enrollment normally means no agent gets installed at all (IME install happens after enrollment) — this rule can realistically only fire for bootstrap-token deployments (pre-MDM reporting) or mixed retry scenarios.",
   "severity": "high",
   "category": "enrollment",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -78,6 +78,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "MDM enrollment was blocked with a known Autopilot error code",
+    "subject": {
+      "kind": "device",
+      "key": "mdm-enrollment",
+      "name": "MDM enrollment"
+    },
+    "facts": [
+      {
+        "label": "Error code",
+        "value": "{{enrl_hresult_esp_failure.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Error code",
+        "value": "{{enrl_hresult_esp_advisory.value}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "enrollment",
     "mdm",

rules/analyze/ANALYZE-ENRL-005.json

@@ -5,7 +5,7 @@
   "description": "A Microsoft Entra hybrid join Autopilot deployment hit error 0x80004005 — a documented build-dependent known issue, resolved by KB5065789 (25H2, build >= 26200.6725), KB5065426 (24H2, build >= 26100.6584), and KB5070312 (23H2, build >= 22631.6276).",
   "severity": "high",
   "category": "enrollment",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -103,6 +103,27 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "Hybrid join hit 0x80004005, a known timeout fixed by Windows updates",
+    "subject": {
+      "kind": "device",
+      "key": "hybrid-join",
+      "name": "Hybrid join"
+    },
+    "facts": [
+      {
+        "label": "Error code",
+        "value": "{{e_fail_esp_failure.value}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "Error code",
+        "value": "{{e_fail_esp_advisory.value}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "enrollment",
     "hybrid-join",

rules/analyze/ANALYZE-ENRL-006.json

@@ -0,0 +1,107 @@
+{
+  "$schema": "../schema/analyze-rule.schema.json",
+  "ruleId": "ANALYZE-ENRL-006",
+  "title": "Monitoring Paused by a Protective Limit",
+  "description": "Detects when the platform blocked the session's device — automatically after an unusually high event volume, or by the platform operator — so the session's telemetry stopped reaching Autopilot Monitor.",
+  "severity": "warning",
+  "category": "enrollment",
+  "version": "1.0.0",
+  "author": "Autopilot Monitor",
+  "enabled": true,
+  "evaluateOn": [
+    "enrollment_end",
+    "on_event:device_blocked"
+  ],
+  "trigger": "single",
+  "baseConfidence": 90,
+  "confidenceThreshold": 50,
+  "conditions": [
+    {
+      "signal": "device_blocked",
+      "source": "event_type",
+      "eventType": "device_blocked",
+      "operator": "exists",
+      "value": "",
+      "required": true
+    },
+    {
+      "signal": "event_count",
+      "source": "event_data",
+      "eventType": "device_blocked",
+      "dataField": "eventCount",
+      "operator": "exists",
+      "value": "",
+      "required": false
+    },
+    {
+      "signal": "event_limit",
+      "source": "event_data",
+      "eventType": "device_blocked",
+      "dataField": "threshold",
+      "operator": "exists",
+      "value": "",
+      "required": false
+    },
+    {
+      "signal": "blocked_until",
+      "source": "event_data",
+      "eventType": "device_blocked",
+      "dataField": "blockedUntil",
+      "operator": "exists",
+      "value": "",
+      "required": false
+    }
+  ],
+  "explanation": "Autopilot Monitor stopped accepting telemetry from this session. A protective limit keeps a single device that sends far more events than an enrollment normally does from distorting your fleet data or overloading the platform. When a session crosses it, the device's uploads are paused for a limited time; in severe cases the agent ends monitoring and removes itself. The platform operator can apply the same pause by hand.\n\nA pause does not affect the enrollment itself: the agent keeps running and only holds back its uploads, so Windows Autopilot and Intune carry on as usual. While the pause lasts, no events from this session reach Autopilot Monitor, so the timeline and the final status reflect the last state the agent reported before it. A paused session does not affect the device's next enrollment, which starts unblocked. When the agent ended monitoring, the device stays unmonitored until the end time shown on the session page, new enrollments included.",
+  "remediation": [
+    {
+      "title": "Find what made the session so busy",
+      "steps": [
+        "Open the event timeline and look at which event type repeats most often before the pause — for example a network connection that drops and reconnects every few minutes, or a download that reports progress continuously",
+        "Fix the underlying condition (for example a loose dock, cable or Wi-Fi), then re-enroll the device if you need a complete record of the enrollment",
+        "If no event type stands out, report the session from its page so it can be looked at"
+      ]
+    },
+    {
+      "title": "What happens next",
+      "steps": [
+        "A pause ends on its own at the time shown on the session page; an agent that is still running then resumes uploading",
+        "After a pause, a new enrollment on this device starts unblocked",
+        "After the agent ended monitoring, wait for the end time shown on the session page before re-enrolling if you want the new enrollment monitored"
+      ]
+    }
+  ],
+  "relatedDocs": [
+    {
+      "title": "Autopilot Monitor: Protective Limits",
+      "url": "https://docs.autopilotmonitor.com/concepts/protective-limits"
+    }
+  ],
+  "presentation": {
+    "role": "outcome",
+    "summary": "Monitoring was paused by a protective limit",
+    "facts": [
+      {
+        "label": "Paused at",
+        "value": "{{device_blocked.timestamp}}",
+        "format": "timestamp"
+      },
+      {
+        "label": "Events in this session",
+        "value": "{{event_count.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Event limit",
+        "value": "{{event_limit.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Paused until",
+        "value": "{{blocked_until.value}}",
+        "format": "timestamp"
+      }
+    ]
+  },
+  "tags": ["enrollment", "protective-limit", "blocked"]
+}

rules/analyze/ANALYZE-ESP-001.json

@@ -5,7 +5,7 @@
   "description": "Detects when the DeviceSetup phase of the ESP took longer than 30 minutes, indicating a stuck or very slow blocking app. Confidence increases when the phase exceeds 60 minutes.",
   "severity": "high",
   "category": "esp",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -47,6 +47,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "Device setup took {{esp_stalled.durationFormatted}}",
+    "subject": {
+      "kind": "esp",
+      "key": "{{esp_stalled.phase}}",
+      "name": "Device setup"
+    },
+    "facts": [
+      {
+        "label": "Duration",
+        "value": "{{esp_stalled.durationSeconds}}",
+        "format": "duration"
+      },
+      {
+        "label": "Started",
+        "value": "{{esp_stalled.phaseStartTimestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "esp",
     "blocking",

rules/analyze/ANALYZE-ESP-002.json

@@ -5,7 +5,7 @@
   "description": "Detects when the Certificates subcategory of the Enrollment Status Page reported a failure, even if the enrollment later appears to have succeeded. Users can click 'Continue anyway' on an ESP error, which masks the underlying certificate provisioning failure — this rule surfaces the transition so it stays visible.",
   "severity": "high",
   "category": "esp",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -58,6 +58,22 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "The ESP certificates step failed",
+    "subject": {
+      "kind": "esp",
+      "key": "Certificates",
+      "name": "Certificates"
+    },
+    "facts": [
+      {
+        "label": "Failed at",
+        "value": "{{certificates_subcategory_failed.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": [
     "esp",
     "certificates",

rules/analyze/ANALYZE-ESP-004.json

@@ -5,7 +5,7 @@
   "description": "Detects an ESP terminal failure where the ESP gave up while a blocking app was still installing (the agent's own esp_apps_timeout verdict — no per-app HRESULT was reported) on a profile that allows 'Continue anyway'. The enrollment is reported as failed, but the user most likely dismissed the error screen and reached the desktop — a soft failure rather than an unusable device. An ESP failure that carries a specific error code (a failed installer, a detection mismatch) is a different case and stays with the rule that explains that code.",
   "severity": "warning",
   "category": "esp",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "baseConfidence": 80,
   "conditions": [
@@ -81,5 +81,30 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "The ESP gave up while {{appName.value}} was still installing ('Continue anyway' allowed)",
+    "subject": {
+      "kind": "app",
+      "key": "{{appName.appId}}",
+      "name": "{{appName.value}}"
+    },
+    "facts": [
+      {
+        "label": "ESP error",
+        "value": "{{enrollment_failed.errorCode}}",
+        "format": "errorCode"
+      },
+      {
+        "label": "ESP time limit (min)",
+        "value": "{{espSyncFailureTimeoutMinutes.value}}",
+        "format": "number"
+      },
+      {
+        "label": "ESP step",
+        "value": "{{failedSubcategory.value}}"
+      }
+    ]
+  },
   "tags": ["esp", "timeout", "continue-anyway", "soft-failure", "enrollment"]
 }

rules/analyze/ANALYZE-ESP-005.json

@@ -5,7 +5,7 @@
   "description": "Attributes an observed enrollment reboot to device-assigned MDM policies that Windows flagged as reboot-required. Fires ONLY when both facts are present in the session: at least one actually-observed reboot (system_reboot_detected) AND reboot-required policy flags (mdm_policy_reboot_required). Policy flags alone — e.g. from a user-policy sync during AccountSetup — force no reboot and stay advisory-silent.",
   "severity": "warning",
   "category": "esp",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -94,6 +94,31 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "context",
+    "summary": "A device policy forced a restart during setup: {{reboot_forcing_policy_uri.value}}",
+    "subject": {
+      "kind": "policy",
+      "key": "{{reboot_forcing_policy_uri.value}}"
+    },
+    "facts": [
+      {
+        "label": "First policy",
+        "value": "{{reboot_forcing_policy_uri.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Policies",
+        "value": "{{multiple_reboot_uris.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Restarts",
+        "value": "{{reboot_observed.count}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "esp",
     "reboot",

rules/analyze/ANALYZE-ESP-006.json

@@ -5,7 +5,7 @@
   "description": "Detects the recovery story: the ESP reported a terminal failure (typically DeviceSetup/Apps), the user most likely pressed 'Try again' on the failure page, the failed step re-ran and completed successfully. The earlier failure did not stick — the enrollment continued past it.",
   "severity": "info",
   "category": "esp",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -98,6 +98,34 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "context",
+    "summary": "The ESP failed in the {{category.value}} phase, then recovered",
+    "subject": {
+      "kind": "esp",
+      "key": "{{failedSubcategory.value}}",
+      "name": "{{failedSubcategory.value}}"
+    },
+    "facts": [
+      {
+        "label": "ESP phase",
+        "value": "{{category.value}}"
+      },
+      {
+        "label": "ESP step",
+        "value": "{{failedSubcategory.value}}"
+      },
+      {
+        "label": "Likely apps",
+        "value": "{{likelyCulpritApps.value}}"
+      },
+      {
+        "label": "Recovered after (min)",
+        "value": "{{minutesSinceFailure.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "esp",
     "recovery",

rules/analyze/ANALYZE-ID-001.json

@@ -12,7 +12,7 @@
     "enrollment_end",
     "whiteglove_sealed"
   ],
-  "version": "1.3.0",
+  "version": "1.4.0",
   "baseConfidence": 75,
   "conditions": [
     {
@@ -55,6 +55,15 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "The expected machine certificate was not found",
+    "subject": {
+      "kind": "device",
+      "key": "machine-certificate",
+      "name": "Machine certificate"
+    }
+  },
   "tags": [
     "identity",
     "certificates",

rules/analyze/ANALYZE-ID-002.json

@@ -5,7 +5,7 @@
   "description": "Detects when the LocalAdminAnalyzer flags unexpected local user accounts or profile directories on the device. This is a known Autopilot bypass technique where admin accounts are created before or during enrollment to gain persistent local admin access.",
   "severity": "high",
   "category": "identity",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -41,6 +41,30 @@
       "operator": "equals",
       "value": "error",
       "required": false
+    },
+    {
+      "signal": "unexpected_accounts",
+      "source": "event_data",
+      "eventType": "local_admin_analysis",
+      "dataField": "checks.unexpected_accounts",
+      "operator": "not_equals",
+      "value": "",
+      "filterField": "finding",
+      "filterOperator": "equals",
+      "filterValue": "unexpected_local_admins_detected",
+      "required": false
+    },
+    {
+      "signal": "unexpected_admin_members",
+      "source": "event_data",
+      "eventType": "local_admin_analysis",
+      "dataField": "checks.unexpected_admin_members",
+      "operator": "not_equals",
+      "value": "",
+      "filterField": "finding",
+      "filterOperator": "equals",
+      "filterValue": "unexpected_local_admins_detected",
+      "required": false
     }
   ],
   "confidenceFactors": [
@@ -85,6 +109,26 @@
     }
   ],
   "relatedDocs": [],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Unexpected local accounts: {{unexpected_accounts.value}}",
+    "subject": {
+      "kind": "account",
+      "key": "{{unexpected_accounts.value}}"
+    },
+    "facts": [
+      {
+        "label": "Unexpected accounts",
+        "value": "{{unexpected_accounts.value}}",
+        "format": "code"
+      },
+      {
+        "label": "In Administrators",
+        "value": "{{unexpected_admin_members.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "identity",
     "security",

rules/analyze/ANALYZE-ID-003.json

@@ -5,7 +5,7 @@
   "description": "Fires when the vulnerability correlation finds critical-severity CVEs or CISA KEV entries in installed software. This indicates the device has software with known, actively exploited vulnerabilities.",
   "severity": "critical",
   "category": "security",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -72,6 +72,27 @@
       "url": "https://nvd.nist.gov/"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Installed software has {{critical_vulnerabilities.value}} critical vulnerabilities",
+    "subject": {
+      "kind": "device",
+      "key": "vulnerabilities",
+      "name": "Installed software"
+    },
+    "facts": [
+      {
+        "label": "Critical CVEs",
+        "value": "{{critical_vulnerabilities.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Known exploited",
+        "value": "{{kev_matches.value}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "vulnerability",
     "cve",

rules/analyze/ANALYZE-ID-004.json

@@ -5,7 +5,7 @@
   "description": "On a hybrid-joined device the real user reached the desktop, but the Intune Management Extension never acquired a Microsoft Entra user token for that user within the wait window — repeatedly across reboots when the warning recurs. Without a user token the signed-in user has no Entra user affinity: user-targeted apps and policies cannot apply, Windows Hello for Business cannot provision, and with a user ESP the Account Setup page re-runs on every logon.",
   "severity": "high",
   "category": "identity",
-  "version": "2.0.0",
+  "version": "2.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "trigger": "correlation",
@@ -44,6 +44,24 @@
       "operator": "not_exists",
       "value": "",
       "required": true
+    },
+    {
+      "signal": "token_failure_count",
+      "source": "event_data",
+      "eventType": "entra_user_affinity_pending",
+      "dataField": "tokenFailureCount",
+      "operator": "exists",
+      "value": "",
+      "required": false
+    },
+    {
+      "signal": "token_failure_codes",
+      "source": "event_data",
+      "eventType": "entra_user_affinity_pending",
+      "dataField": "tokenFailureCodes",
+      "operator": "not_equals",
+      "value": "",
+      "required": false
     }
   ],
   "confidenceFactors": [
@@ -96,5 +114,36 @@
     }
   ],
   "markSessionAsFailedDefault": false,
+  "presentation": {
+    "role": "cause",
+    "summary": "The user reached the desktop, but Entra user affinity never formed",
+    "subject": {
+      "kind": "account",
+      "key": "entra-user-affinity",
+      "name": "Entra user affinity"
+    },
+    "facts": [
+      {
+        "label": "Token failures",
+        "value": "{{token_failure_count.value}}",
+        "format": "number"
+      },
+      {
+        "label": "Token error codes",
+        "value": "{{token_failure_codes.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Reported in agent runs",
+        "value": "{{user_affinity_pending.count}}",
+        "format": "number"
+      },
+      {
+        "label": "Desktop reached",
+        "value": "{{user_desktop_reached.timestamp}}",
+        "format": "timestamp"
+      }
+    ]
+  },
   "tags": ["identity", "hybrid-join", "entra-id", "user-affinity", "esp"]
 }

rules/analyze/ANALYZE-NET-001.json

@@ -5,7 +5,7 @@
   "description": "Detects diagnostics package uploads that were answered by a security appliance's HTML block page instead of the Autopilot Monitor backend. A forward proxy / secure web gateway (SWG) with SSL inspection is intercepting the upload endpoint, so exactly the sessions where diagnostics matter most (OnFailure uploads) are the ones losing them.",
   "severity": "warning",
   "category": "network",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "baseConfidence": 75,
@@ -71,6 +71,15 @@
       "url": "https://learn.microsoft.com/en-us/autopilot/networking-requirements"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "A web security gateway blocked the diagnostics upload",
+    "subject": {
+      "kind": "network",
+      "key": "security-gateway",
+      "name": "Web security gateway"
+    }
+  },
   "tags": [
     "network",
     "proxy",

rules/analyze/ANALYZE-OFFICE-001.json

@@ -5,7 +5,7 @@
   "description": "Detects when the Microsoft 365 Apps (Office Click-to-Run) install failed. The V2 OfficeInstallDetector watches the C2R client directly (registry, Delivery Optimization, process) and emits office_install_failed when the C2R INSTALL scenario records an error code. Completion is proven by the core Office binaries on disk; an install window that closes without that proof ends silently, never as a failure. This catches Office failures the deployment status hides: the Intune built-in app type is marked done once the configuration is delivered, and a Win32 or RealmJoin package once its installer exits, while C2R keeps installing in the background.",
   "severity": "warning",
   "category": "apps",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -52,6 +52,22 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "cause",
+    "summary": "Microsoft 365 Apps failed to install",
+    "subject": {
+      "kind": "app",
+      "key": "office-c2r",
+      "name": "Microsoft 365 Apps"
+    },
+    "facts": [
+      {
+        "label": "Error",
+        "value": "{{error_code_present.value}}",
+        "format": "errorCode"
+      }
+    ]
+  },
   "tags": [
     "apps",
     "office",

rules/analyze/ANALYZE-SEC-001.json

@@ -5,7 +5,7 @@
   "description": "Detects devices where the Windows UEFI CA 2023 certificate has not been deployed to the Secure Boot DB. The 2011 certificates expired in June 2026 — affected devices no longer receive Secure Boot security updates until the 2023 certificate is deployed. Since v3 the agent reads the firmware db/KEK variables directly: when the firmware itself confirms the 2023 certificate, the rule is suppressed even if the Windows servicing status has not caught up yet.",
   "severity": "warning",
   "category": "security",
-  "version": "3.1.0",
+  "version": "3.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -132,6 +132,35 @@
       "url": "https://support.microsoft.com/en-us/topic/kb5036210"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "The Windows UEFI CA 2023 certificate is not deployed",
+    "subject": {
+      "kind": "device",
+      "key": "secure-boot",
+      "name": "Secure Boot"
+    },
+    "facts": [
+      {
+        "label": "CA 2023 status",
+        "value": "{{ca2023_not_updated.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Error",
+        "value": "{{ca2023_error.value}}",
+        "format": "code"
+      },
+      {
+        "label": "CA 2023 in firmware DB",
+        "value": "{{db_ca2023_firmware_missing.value}}"
+      },
+      {
+        "label": "KEK 2023 in firmware",
+        "value": "{{kek_2023_missing.value}}"
+      }
+    ]
+  },
   "tags": [
     "security",
     "secureboot",

rules/analyze/ANALYZE-SEC-003.json

@@ -5,7 +5,7 @@
   "description": "Fires when the AutoLogon analyzer reports a DefaultPassword value present in Winlogon. A plaintext AutoLogon password stored in the registry is readable by any local administrator and is a credential exposure — more severe than AutoLogon alone (the Sysinternals Autologon tool deliberately avoids this by storing the secret in the LSA instead).",
   "severity": "high",
   "category": "security",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -49,6 +49,15 @@
       "url": "https://learn.microsoft.com/en-us/sysinternals/downloads/autologon"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "A plaintext AutoLogon password is stored in the registry",
+    "subject": {
+      "kind": "device",
+      "key": "autologon",
+      "name": "AutoLogon"
+    }
+  },
   "tags": [
     "security",
     "autologon",

rules/analyze/ANALYZE-SEC-004.json

@@ -5,7 +5,7 @@
   "description": "Optional kiosk allow-list for AutoLogon. Fires when AutoLogon is enabled for a default user that is NOT on your configured list of approved kiosk / shared-device accounts. Disabled until configured because a normal Autopilot enrollment leaves Windows' own ESP auto-logon for the enrolling user (AutoLogon enabled, a default user, no plaintext password) — so AutoLogon-enabled alone is not graded by default; only a plaintext DefaultPassword on disk (ANALYZE-SEC-003) is. Enable this rule with your expected kiosk account name(s) if you want to surface AutoLogon configured for any other user.",
   "severity": "warning",
   "category": "security",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": false,
   "evaluateOn": [
     "enrollment_end",
@@ -59,6 +59,21 @@
       "url": "https://learn.microsoft.com/en-us/troubleshoot/windows-server/user-profiles-and-logon/turn-on-automatic-logon"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "AutoLogon is enabled for an unexpected user: {{unexpected_autologon_user.value}}",
+    "subject": {
+      "kind": "account",
+      "key": "{{unexpected_autologon_user.value}}"
+    },
+    "facts": [
+      {
+        "label": "AutoLogon user",
+        "value": "{{unexpected_autologon_user.value}}",
+        "format": "code"
+      }
+    ]
+  },
   "tags": [
     "security",
     "autologon",

rules/analyze/ANALYZE-SEC-005.json

@@ -5,7 +5,7 @@
   "description": "Detects provisioning packages (PPKG) that are not on the built-in allow-list. The agent emits one or more provisioning_package_scan events whose artifacts[] arrays list every PPKG (registry package, .ppkg file, or Recovery\\Customizations residue; a large set is split across several events). This rule iterates that array across all of them and fires for any artifact whose identity does not match the allow-list regex. The default allow-list covers the Windows OS-inbox packages (Cosa, Power.EnergyEstimationEngine, Power.Settings, SecureStart) plus common OEM factory-preload families (Intel PPM power profiles, AMD Power profiles, Lenovo ThinkPad power/battery packages, Microsoft Surface defaults and carrier packages) so clean factory devices stay quiet. OEM imaging leftovers (e.g. USMT.PPKG, InstallOrder.ini) and generically named packages deliberately still alert — on a pure-Autopilot device they are worth a look. To allow your own vendor/recovery packages, enable the template rule ANALYZE-SEC-006, extend its allow-list, then disable this rule.",
   "severity": "warning",
   "category": "security",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -38,6 +38,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Provisioning package not on the allow list: {{ppkg_not_allowlisted.value}}",
+    "subject": {
+      "kind": "device",
+      "key": "provisioning-packages",
+      "name": "Provisioning packages"
+    },
+    "facts": [
+      {
+        "label": "Package",
+        "value": "{{ppkg_not_allowlisted.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Unexpected packages",
+        "value": "{{ppkg_not_allowlisted.matchCount}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "security",
     "provisioning-package",

rules/analyze/ANALYZE-SEC-006.json

@@ -5,7 +5,7 @@
   "description": "Template version of ANALYZE-SEC-005 with a customizable allow-list. Iterates the provisioning_package_scan artifacts[] array and fires for any PPKG whose identity is not on YOUR allow-list regex. The placeholder ships with the same OS-inbox defaults as ANALYZE-SEC-005 — extend it with your own vendor/recovery packages. This rule is OFF by default: enable it, set your allow-list, then disable ANALYZE-SEC-005 so only packages outside your list alert.",
   "severity": "warning",
   "category": "security",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "enabled": false,
   "evaluateOn": [
     "enrollment_end",
@@ -45,6 +45,27 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Provisioning package not on the allow list: {{ppkg_not_allowlisted.value}}",
+    "subject": {
+      "kind": "device",
+      "key": "provisioning-packages",
+      "name": "Provisioning packages"
+    },
+    "facts": [
+      {
+        "label": "Package",
+        "value": "{{ppkg_not_allowlisted.value}}",
+        "format": "code"
+      },
+      {
+        "label": "Unexpected packages",
+        "value": "{{ppkg_not_allowlisted.matchCount}}",
+        "format": "number"
+      }
+    ]
+  },
   "tags": [
     "security",
     "provisioning-package",

rules/analyze/ANALYZE-SEC-007.json

@@ -5,7 +5,7 @@
   "description": "Fires when the provisioning-package scan hit a per-source collection cap (too many .ppkg files, registry packages, or Recovery\\Customizations residue files to capture them all). When that happens the allow-list rules (ANALYZE-SEC-005/006) could not evaluate every package, so a non-allow-listed package may have gone unseen. A device with that many provisioning packages is itself unusual and worth a manual look.",
   "severity": "warning",
   "category": "security",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "enabled": true,
   "evaluateOn": [
     "enrollment_end",
@@ -36,6 +36,15 @@
       ]
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "The provisioning package scan hit its capture limit",
+    "subject": {
+      "kind": "device",
+      "key": "provisioning-packages",
+      "name": "Provisioning packages"
+    }
+  },
   "tags": [
     "security",
     "provisioning-package",

rules/analyze/ANALYZE-SEC-008.json

@@ -5,7 +5,7 @@
   "description": "Detects devices enrolling with Secure Boot turned off. Secure Boot is a firmware-level protection against boot-time malware and is a prerequisite for several Windows security features (VBS/Credential Guard, device health attestation) and common Intune compliance policies. Devices that support Secure Boot but have it disabled should be flagged during enrollment. Legacy BIOS devices (no Secure Boot capability) are excluded — the agent marks those with a note field when the SecureBoot registry state key is absent.",
   "severity": "warning",
   "category": "security",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "author": "Autopilot Monitor",
   "enabled": true,
   "evaluateOn": [
@@ -82,6 +82,15 @@
       "url": "https://learn.microsoft.com/en-us/windows-hardware/manufacture/desktop/disabling-secure-boot"
     }
   ],
+  "presentation": {
+    "role": "advisory",
+    "summary": "Secure Boot is disabled",
+    "subject": {
+      "kind": "device",
+      "key": "secure-boot",
+      "name": "Secure Boot"
+    }
+  },
   "tags": [
     "security",
     "secureboot",

rules/schema/analyze-rule.schema.json

@@ -133,6 +133,7 @@
           "items": { "$ref": "#/$defs/relatedDoc" },
           "default": []
         },
+        "presentation": { "$ref": "#/$defs/rulePresentation" },
         "tags": {
           "type": "array",
           "description": "Tags for filtering and categorization.",
@@ -352,6 +353,83 @@
       "required": ["title", "url"],
       "additionalProperties": false
     },
+    "rulePresentation": {
+      "type": "object",
+      "description": "How a finding of this rule is shown: its role, a one-line summary, what it is about and its key facts. Every string is a {{token}} template resolved from the finding's evidence when it is rendered; a fact whose value was not recorded is left out.",
+      "properties": {
+        "role": {
+          "type": "string",
+          "enum": ["outcome", "cause", "context", "advisory"],
+          "description": "outcome: restates the session outcome (shown in the verdict, not as a finding row). cause: can explain why a session failed or is stuck. context: a circumstance such as standby, a restart or battery power. advisory: hygiene or security without bearing on the outcome."
+        },
+        "summary": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 160,
+          "description": "One line for the finding row, for example \"{{install_retry_loop.appName}} was started {{install_retry_loop.count}} times\". When a token was not recorded, the first sentence of the explanation is shown instead."
+        },
+        "subject": { "$ref": "#/$defs/ruleSubject" },
+        "facts": {
+          "type": "array",
+          "description": "Key facts shown as label/value pairs, in this order.",
+          "maxItems": 6,
+          "items": { "$ref": "#/$defs/ruleFact" }
+        }
+      },
+      "required": ["role"],
+      "additionalProperties": false
+    },
+    "ruleSubject": {
+      "type": "object",
+      "description": "What the finding is about. Findings with the same kind and resolved key are grouped, for example every finding about one app. Use qualified tokens of one signal for key and name, such as {{failed_app.appId}} and {{failed_app.appName}}, so both come from the same event.",
+      "properties": {
+        "kind": {
+          "type": "string",
+          "enum": ["app", "policy", "account", "script", "device", "network", "esp", "session"],
+          "description": "The kind of thing the key identifies."
+        },
+        "key": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 200,
+          "description": "Template of the grouping key."
+        },
+        "name": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 200,
+          "description": "Template of the display name; the key is shown when it is missing."
+        }
+      },
+      "required": ["kind", "key"],
+      "additionalProperties": false
+    },
+    "ruleFact": {
+      "type": "object",
+      "description": "One key fact of a finding.",
+      "properties": {
+        "label": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 40,
+          "description": "Short label, for example \"Install starts\"."
+        },
+        "value": {
+          "type": "string",
+          "minLength": 1,
+          "maxLength": 200,
+          "description": "Template of the value, for example {{install_retry_loop.count}}."
+        },
+        "format": {
+          "type": "string",
+          "enum": ["text", "code", "errorCode", "duration", "number", "timestamp"],
+          "description": "How the value is shown. errorCode adds the error-code catalog meaning, duration reads seconds, timestamp an ISO 8601 time.",
+          "default": "text"
+        }
+      },
+      "required": ["label", "value"],
+      "additionalProperties": false
+    },
     "templateVariable": {
       "type": "object",
       "description": "A variable in a rule condition that must be customized per-tenant before the rule can be used.",

scripts/Bootstrap/Bootstrap.Integration.Tests.ps1

@@ -0,0 +1,991 @@
+# Integration tests (Pester 5+) for the bootstrap chain: the real loader and installer, each
+# started the way Intune and the bootstrap MSI start them -- powershell.exe -File, in a process
+# of its own -- against a scratch ProgramData and TEMP. Loader 1.2 and the MSI 1.0.x runner run
+# from TestData, frozen from git: devices keep running them until customers replace them.
+#
+# What these tests do not cover is swapped out by global aliases, which win over cmdlets and
+# over functions a script defines: downloads (served from a scratch folder), signatures, the
+# catalog check, the guard decision, the deployment marker, the agent task, the agent's
+# --install (a real program start from PowerShell's location, with the agent's work left out)
+# and sleeps. Every swap writes a trace line, and the tests check the lines they rely on, so a
+# swap that stops working turns a test red instead of reaching the real machine.
+#
+# Run elevated (CI also runs it as SYSTEM), the folder permissions are the real ones. Without
+# elevation the test account may not make Administrators the owner, so the protected DACL is
+# swapped for one without that owner change, and folders the account owns count as ours.
+# Entries whose name starts with "foreign" count as another account's.
+#
+# This file MUST remain pure ASCII (PS 5.1 reads BOM-less files as ANSI).
+
+BeforeAll {
+    $script:repoRoot = (Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path
+    $script:loaderPath = Join-Path $PSScriptRoot 'Start-AutopilotMonitor.ps1'
+    $script:installerPath = Join-Path $PSScriptRoot 'Install-AutopilotMonitor.ps1'
+    $script:loader12Path = Join-Path $PSScriptRoot 'TestData\Start-AutopilotMonitor-1.2.ps1'
+    $script:msiRunnerPath = Join-Path $PSScriptRoot 'TestData\Invoke-BootstrapDownload-1.0.ps1'
+    # The backend's pin of the generated OOBE script, test values filled in.
+    $script:oobeScriptPath = Join-Path $script:repoRoot 'src\Backend\AutopilotMonitor.Functions.Tests\TestData\oobe-bootstrap-golden.ps1'
+    $script:powershell = Join-Path $env:SystemRoot 'System32\WindowsPowerShell\v1.0\powershell.exe'
+    $script:isElevated = (New-Object System.Security.Principal.WindowsPrincipal([System.Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator)
+    $script:payloadFiles = @('AutopilotMonitor.Agent.Core.dll', 'AutopilotMonitor.Agent.cat', 'AutopilotMonitor.Agent.exe', 'AutopilotMonitor.Agent.exe.config')
+
+    # The agent package: text files under the agent's names. --install is swapped out, so
+    # nothing in it ever runs.
+    $payload = Join-Path $TestDrive 'payload'
+    New-Item -ItemType Directory -Path $payload | Out-Null
+    foreach ($name in $script:payloadFiles) { Set-Content -LiteralPath (Join-Path $payload $name) -Value "stub $name" }
+    $script:agentZip = Join-Path $TestDrive 'AutopilotMonitor-Agent.zip'
+    Compress-Archive -Path (Join-Path $payload '*') -DestinationPath $script:agentZip
+    $script:agentZipSha256 = (Get-FileHash -LiteralPath $script:agentZip -Algorithm SHA256).Hash.ToLowerInvariant()
+
+    $script:wrapperText = @'
+$global:HarnessDir = $PSScriptRoot
+$global:HarnessOptions = [System.IO.File]::ReadAllText((Join-Path $PSScriptRoot 'options.json')) | ConvertFrom-Json
+
+function global:Write-HarnessTrace {
+    param([string]$Name, [string]$Detail)
+    [System.IO.File]::AppendAllText((Join-Path $global:HarnessDir 'trace.txt'), "$Name|$Detail`r`n")
+}
+
+function global:Get-HarnessServerFile {
+    param([string]$Uri)
+    $source = Join-Path $global:HarnessOptions.Server ($Uri.Substring($Uri.LastIndexOf('/') + 1))
+    if (-not [System.IO.File]::Exists($source)) { throw "The remote server returned an error: (404) Not Found. ($Uri)" }
+    return $source
+}
+
+function global:HarnessInvokeWebRequest {
+    [CmdletBinding()]
+    param([string]$Uri, [string]$OutFile, [switch]$UseBasicParsing, [int]$TimeoutSec, [string]$Method)
+    Write-HarnessTrace 'Invoke-WebRequest' $Uri
+    [System.IO.File]::Copy((Get-HarnessServerFile $Uri), $OutFile, $true)
+}
+
+function global:HarnessInvokeRestMethod {
+    [CmdletBinding()]
+    param([string]$Uri, [switch]$UseBasicParsing, [int]$TimeoutSec)
+    Write-HarnessTrace 'Invoke-RestMethod' $Uri
+    return ([System.IO.File]::ReadAllText((Get-HarnessServerFile $Uri)) | ConvertFrom-Json)
+}
+
+function global:HarnessGetAuthenticodeSignature {
+    [CmdletBinding()]
+    param([string]$FilePath, [byte[]]$Content, [string[]]$SourcePathOrExtension)
+    Write-HarnessTrace 'Get-AuthenticodeSignature' $(if ($Content) { "content:$($Content.Length)" } else { $FilePath })
+    return [pscustomobject]@{
+        Status            = $global:HarnessOptions.SignatureStatus
+        SignerCertificate = [pscustomobject]@{ Subject = $global:HarnessOptions.SignerSubject; Thumbprint = 'HARNESS' }
+    }
+}
+
+function global:HarnessTestFileCatalog {
+    [CmdletBinding()]
+    param([string]$Path, [string]$CatalogFilePath, [string[]]$FilesToSkip, [switch]$Detailed)
+    Write-HarnessTrace 'Test-FileCatalog' $Path
+    return [pscustomobject]@{
+        Status       = $(if ($global:HarnessOptions.CatalogValid) { 'Valid' } else { 'ValidationFailed' })
+        Signature    = [pscustomobject]@{ Status = 'Valid'; SignerCertificate = [pscustomobject]@{ Subject = 'CN=glueckkanja AG, O=glueckkanja AG, C=DE' } }
+        CatalogItems = @{}
+        PathItems    = @{}
+    }
+}
+
+function global:HarnessGetBootstrapDecision {
+    param([int]$MaxBootstrapWindowHours, [int]$OobeProfileMaxAgeMinutes)
+    Write-HarnessTrace 'Get-BootstrapDecision' "MaxBootstrapWindowHours=$MaxBootstrapWindowHours"
+    $install = [bool]$global:HarnessOptions.Install
+    return [pscustomobject]@{ Install = $install; ReasonCode = $(if ($install) { $null } else { 'ProfilesFound' }); RelaxActive = $false }
+}
+
+function global:HarnessGetRegistryValue64 {
+    param([string]$SubKey, [string]$Name)
+    Write-HarnessTrace 'Get-RegistryValue64' "$SubKey\$Name"
+    if ($SubKey -eq 'SOFTWARE\AutopilotMonitor' -and $Name -eq 'Deployed') { return $global:HarnessOptions.Marker }
+    return $null
+}
+
+function global:HarnessGetScheduledTask {
+    [CmdletBinding()]
+    param([string]$TaskName)
+    Write-HarnessTrace 'Get-ScheduledTask' $TaskName
+    if ($global:HarnessOptions.TaskPresent) { return [pscustomobject]@{ TaskName = $TaskName } }
+    throw (New-Object System.Management.Automation.ErrorRecord((New-Object System.Exception "No MSFT_ScheduledTask objects found with property 'TaskName' equal to '$TaskName'."), 'CmdletizationQuery_NotFound_TaskName,Get-ScheduledTask', [System.Management.Automation.ErrorCategory]::ObjectNotFound, $TaskName))
+}
+
+function global:HarnessInvokeAgentInstallMode {
+    param([string]$ExePath, [string[]]$Arguments = @('--install'))
+    Write-HarnessTrace 'Invoke-AgentInstallMode' ('{0} {1} exists={2}' -f $ExePath, ($Arguments -join ' '), [System.IO.File]::Exists($ExePath))
+    # A real program start from PowerShell's own location, as the agent start is: a location
+    # that no longer exists fails here with error 267, as it did on the MSI channel. With
+    # AgentStartFails the stub payload itself is started, a text file that never runs.
+    if ($global:HarnessOptions.AgentStartFails) {
+        & $ExePath @Arguments | Out-Host
+        return $LASTEXITCODE
+    }
+    & "$env:SystemRoot\System32\cmd.exe" /c "exit $([int]$global:HarnessOptions.InstallExitCode)" | Out-Host
+    return $LASTEXITCODE
+}
+
+function global:HarnessGetProcess {
+    [CmdletBinding()]
+    param([string[]]$Name)
+    if ($Name -contains 'AutopilotMonitor.Agent') {
+        Write-HarnessTrace 'Get-Process' 'AutopilotMonitor.Agent'
+        return [pscustomobject]@{ Id = 4242; StartTime = Get-Date }
+    }
+    return Microsoft.PowerShell.Management\Get-Process @PSBoundParameters
+}
+
+function global:HarnessStartSleep {
+    [CmdletBinding()]
+    param([int]$Seconds, [int]$Milliseconds)
+    Write-HarnessTrace 'Start-Sleep' "$Seconds s $Milliseconds ms"
+}
+
+function global:HarnessTestIsElevated {
+    Write-HarnessTrace 'Test-IsElevated' "$($global:HarnessOptions.Elevated)"
+    return [bool]$global:HarnessOptions.Elevated
+}
+
+# The protected DACL without the owner change a standard account may not make.
+function global:HarnessNewProtectedDirectorySecurity {
+    $security = New-Object System.Security.AccessControl.DirectorySecurity
+    $security.SetAccessRuleProtection($true, $false)
+    $inherit = [System.Security.AccessControl.InheritanceFlags]'ContainerInherit, ObjectInherit'
+    $propagation = [System.Security.AccessControl.PropagationFlags]::None
+    foreach ($sid in @([System.Security.Principal.WindowsIdentity]::GetCurrent().User, (New-Object System.Security.Principal.SecurityIdentifier('S-1-5-18')))) {
+        $security.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule($sid, 'FullControl', $inherit, $propagation, 'Allow')))
+    }
+    $security.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule((New-Object System.Security.Principal.SecurityIdentifier('S-1-5-32-545')), 'ReadAndExecute', $inherit, $propagation, 'Allow')))
+    return $security
+}
+
+function global:HarnessTestIsOwnedByUs {
+    param([string]$Path)
+    if ([System.IO.Path]::GetFileName($Path) -like 'foreign*') { return $false }
+    try {
+        $owner = (Get-Item -LiteralPath $Path -Force -ErrorAction Stop).GetAccessControl([System.Security.AccessControl.AccessControlSections]::Owner).GetOwner([System.Security.Principal.SecurityIdentifier])
+        return ($owner.Value -eq 'S-1-5-18' -or $owner.Value -eq 'S-1-5-32-544' -or $owner -eq [System.Security.Principal.WindowsIdentity]::GetCurrent().User)
+    } catch {
+        return $false
+    }
+}
+
+$swaps = @{
+    'Invoke-WebRequest'         = 'HarnessInvokeWebRequest'
+    'Invoke-RestMethod'         = 'HarnessInvokeRestMethod'
+    'Get-AuthenticodeSignature' = 'HarnessGetAuthenticodeSignature'
+    'Test-FileCatalog'          = 'HarnessTestFileCatalog'
+    'Get-BootstrapDecision'     = 'HarnessGetBootstrapDecision'
+    'Get-RegistryValue64'       = 'HarnessGetRegistryValue64'
+    'Get-ScheduledTask'         = 'HarnessGetScheduledTask'
+    'Invoke-AgentInstallMode'   = 'HarnessInvokeAgentInstallMode'
+    'Get-Process'               = 'HarnessGetProcess'
+    'Start-Sleep'               = 'HarnessStartSleep'
+    'Test-IsOwnedByUs'          = 'HarnessTestIsOwnedByUs'
+}
+if ($global:HarnessOptions.SwapElevation) { $swaps['Test-IsElevated'] = 'HarnessTestIsElevated' }
+if ($global:HarnessOptions.SwapDacl) { $swaps['New-ProtectedDirectorySecurity'] = 'HarnessNewProtectedDirectorySecurity' }
+foreach ($name in $swaps.Keys) { Set-Alias -Name $name -Value $swaps[$name] -Scope Global -Force }
+
+# The bootstrap MSI's action is a -Command line; the OOBE script arrives as irm | iex, which
+# ignores #Requires.
+if ($global:HarnessOptions.CommandText) {
+    Invoke-Expression $global:HarnessOptions.CommandText
+} elseif ($global:HarnessOptions.Iex) {
+    Invoke-Expression ([System.IO.File]::ReadAllText($global:HarnessOptions.Script))
+} else {
+    & $global:HarnessOptions.Script @args
+}
+exit $LASTEXITCODE
+'@
+
+    # A ZIP with exactly these entry names.
+    function New-ZipWithEntries {
+        param([string]$Path, [string[]]$Names)
+        Add-Type -AssemblyName System.IO.Compression
+        Add-Type -AssemblyName System.IO.Compression.FileSystem
+        $archive = [System.IO.Compression.ZipFile]::Open($Path, [System.IO.Compression.ZipArchiveMode]::Create)
+        try {
+            foreach ($name in $Names) {
+                $writer = New-Object System.IO.StreamWriter($archive.CreateEntry($name).Open())
+                try { $writer.Write("content of $name") } finally { $writer.Dispose() }
+            }
+        } finally { $archive.Dispose() }
+    }
+
+    # Serves a package with one entry that points outside the payload folder, with the
+    # matching manifest hash, under the stable names.
+    function Set-EscapingPackage {
+        param($Scenario)
+        $zip = Join-Path $Scenario.Server 'AutopilotMonitor-Agent.zip'
+        Remove-Item -LiteralPath $zip
+        New-ZipWithEntries -Path $zip -Names @('AutopilotMonitor.Agent.exe', 'AutopilotMonitor.Agent.cat', '../../../outside.txt')
+        $sha = (Get-FileHash -LiteralPath $zip -Algorithm SHA256).Hash.ToLowerInvariant()
+        Set-Content -LiteralPath (Join-Path $Scenario.Server 'version.json') -Value ('{"version":"2.0.9999","sha256":"' + $sha + '"}')
+    }
+
+    function New-Scenario {
+        $root = Join-Path $TestDrive ('s' + [guid]::NewGuid().ToString('N').Substring(0, 7))
+        $scenario = [pscustomobject]@{
+            Root        = $root
+            ProgramData = Join-Path $root 'ProgramData'
+            Base        = Join-Path $root 'ProgramData\AutopilotMonitor'
+            ProgramFiles = Join-Path $root 'ProgramFiles'
+            Temp        = Join-Path $root 'Temp'
+            Server      = Join-Path $root 'Server'
+            Outside     = Join-Path $root 'Outside'
+            Ime         = Join-Path $root 'Ime'
+        }
+        foreach ($dir in @($scenario.ProgramData, $scenario.Temp, $scenario.Server, $scenario.Outside, $scenario.Ime)) {
+            New-Item -ItemType Directory -Path $dir -Force | Out-Null
+        }
+        Copy-Item -LiteralPath $script:installerPath -Destination (Join-Path $scenario.Server 'Install-AutopilotMonitor.ps1')
+        Copy-Item -LiteralPath $script:agentZip -Destination (Join-Path $scenario.Server 'AutopilotMonitor-Agent.zip')
+        Set-Content -LiteralPath (Join-Path $scenario.Server 'version.json') -Value ('{"version":"2.0.9999","sha256":"' + $script:agentZipSha256 + '"}')
+        return $scenario
+    }
+
+    function Invoke-Scenario {
+        param(
+            $Scenario,
+            [string]$Script,
+            [string[]]$Arguments = @(),
+            [string]$WorkingDirectory,
+            [hashtable]$Options = @{}
+        )
+        $settings = @{
+            Script          = $Script
+            Server          = $Scenario.Server
+            Install         = $true
+            Marker          = $null
+            TaskPresent     = $false
+            InstallExitCode = 0
+            SignatureStatus = 'Valid'
+            SignerSubject   = 'CN=glueckkanja AG, O=glueckkanja AG, C=DE'
+            CatalogValid    = $true
+            Elevated        = $true
+            Iex             = $false
+            CommandText     = $null
+            AgentStartFails = $false
+        }
+        foreach ($key in $Options.Keys) { $settings[$key] = $Options[$key] }
+        $script:promiseScenario = $Scenario
+        $settings.SwapElevation = ([bool]$settings.Elevated -ne $script:isElevated)
+        $settings.SwapDacl = -not $script:isElevated
+
+        $harness = Join-Path $Scenario.Root 'Harness'
+        New-Item -ItemType Directory -Path $harness -Force | Out-Null
+        $tracePath = Join-Path $harness 'trace.txt'
+        if (Test-Path -LiteralPath $tracePath) { Remove-Item -LiteralPath $tracePath }
+        [System.IO.File]::WriteAllText((Join-Path $harness 'options.json'), ($settings | ConvertTo-Json))
+        [System.IO.File]::WriteAllText((Join-Path $harness 'run.ps1'), $script:wrapperText)
+
+        $psi = New-Object System.Diagnostics.ProcessStartInfo
+        $psi.FileName = $script:powershell
+        $quoted = @($Arguments | ForEach-Object { if ($_ -match '\s') { '"' + $_ + '"' } else { $_ } })
+        $psi.Arguments = ('-NoProfile -ExecutionPolicy Bypass -File "{0}" {1}' -f (Join-Path $harness 'run.ps1'), ($quoted -join ' ')).Trim()
+        $psi.WorkingDirectory = $(if ($WorkingDirectory) { $WorkingDirectory } else { $Scenario.Root })
+        $psi.UseShellExecute = $false
+        $psi.RedirectStandardOutput = $true
+        $psi.RedirectStandardError = $true
+        $psi.EnvironmentVariables['ProgramData'] = $Scenario.ProgramData
+        $psi.EnvironmentVariables['ALLUSERSPROFILE'] = $Scenario.ProgramData
+        $psi.EnvironmentVariables['TEMP'] = $Scenario.Temp
+        $psi.EnvironmentVariables['TMP'] = $Scenario.Temp
+        $psi.EnvironmentVariables['ProgramW6432'] = $Scenario.ProgramFiles
+        $process = [System.Diagnostics.Process]::Start($psi)
+        $stdout = $process.StandardOutput.ReadToEndAsync()
+        $stderr = $process.StandardError.ReadToEndAsync()
+        if (-not $process.WaitForExit(300000)) { $process.Kill(); throw 'The harness run did not end within five minutes.' }
+        $process.WaitForExit()
+
+        return [pscustomobject]@{
+            ExitCode = $process.ExitCode
+            StdOut   = $stdout.Result
+            StdErr   = $stderr.Result
+            Trace    = @(if (Test-Path -LiteralPath $tracePath) { Get-Content -LiteralPath $tracePath })
+        }
+    }
+
+    # Every entry below $Root, links as links and never followed; run-folder ids as <id>.
+    # -Content adds a hash per file, for "exactly as it was".
+    function Get-Tree {
+        param([string]$Root, [switch]$Content)
+        $entries = New-Object System.Collections.Generic.List[string]
+        $walk = {
+            param([string]$Folder)
+            foreach ($entry in [System.IO.Directory]::GetFileSystemEntries($Folder)) {
+                $relative = $entry.Substring($Root.Length + 1) -replace '-[0-9a-f]{8}(?=\\|$)', '-<id>'
+                $attributes = [System.IO.File]::GetAttributes($entry)
+                if (($attributes -band [System.IO.FileAttributes]::ReparsePoint) -ne 0) { $entries.Add("$relative -> link"); continue }
+                if (($attributes -band [System.IO.FileAttributes]::Directory) -ne 0) { $entries.Add("$relative\"); & $walk $entry; continue }
+                if ($Content) { $relative += ' ' + (Get-FileHash -LiteralPath $entry -Algorithm SHA256).Hash.Substring(0, 16) }
+                $entries.Add($relative)
+            }
+        }
+        if ([System.IO.Directory]::Exists($Root)) { & $walk $Root }
+        return (Join-Tree $entries)
+    }
+
+    function Join-Tree {
+        param([string[]]$Entries)
+        $sorted = [string[]]@($Entries | Where-Object { $_ })
+        [System.Array]::Sort($sorted, [System.StringComparer]::Ordinal)
+        return ($sorted -join "`n")
+    }
+
+    # The promise every run keeps, whatever the scenario asserts about ProgramData: nothing of
+    # ours anywhere else. The scenario's own fixture folders are the only other entries.
+    function Assert-NothingOutsideProgramData {
+        param($Scenario)
+        $fixtures = @('ProgramData', 'ProgramFiles', 'Temp', 'Server', 'Outside', 'Ime', 'Harness')
+        $others = @([System.IO.Directory]::GetFileSystemEntries($Scenario.Root) | ForEach-Object { [System.IO.Path]::GetFileName($_) } | Where-Object { $_ -notin $fixtures })
+        $others | Should -BeNullOrEmpty -Because 'the scripts write nowhere but ProgramData'
+        Get-Tree $Scenario.ProgramFiles | Should -BeNullOrEmpty -Because 'nothing of ours stays under Program Files'
+        Get-Tree $Scenario.Temp | Should -BeNullOrEmpty -Because 'the scripts never stage in the shared temp folder'
+    }
+
+    # Every Describe runs this after each test: the last run of the test kept the promise.
+    function Assert-PromiseOfLastRun {
+        if (-not $script:promiseScenario) { return }
+        $scenario = $script:promiseScenario
+        $script:promiseScenario = $null
+        Assert-NothingOutsideProgramData $scenario
+    }
+
+    function Get-StdErrLines {
+        param($Run)
+        return @($Run.StdErr -split "`r?`n" | Where-Object { $_ })
+    }
+
+    function New-Junction {
+        param([string]$Link, [string]$Target)
+        cmd.exe /c mklink /J "$Link" "$Target" | Out-Null
+    }
+
+    function Add-File {
+        param([string]$Path, [string]$Value = 'x')
+        New-Item -ItemType Directory -Path (Split-Path $Path) -Force | Out-Null
+        Set-Content -LiteralPath $Path -Value $Value
+    }
+
+    # A base with what earlier bootstrap versions and agents could leave behind, plus a file
+    # no version knows yet and a junction out of it.
+    function Add-Leftovers {
+        param($Scenario)
+        Add-File (Join-Path $Scenario.Base 'Install-AutopilotMonitor.ps1')
+        Add-File (Join-Path $Scenario.Base 'Logs\bootstrap-loader.log')
+        Add-File (Join-Path $Scenario.Base 'Logs\bootstrap-script.log')
+        Add-File (Join-Path $Scenario.Base 'Agent-Install\Agent\AutopilotMonitor.Agent.Core.dll')
+        Add-File (Join-Path $Scenario.Base 'future-version-file.bin')
+        Add-File (Join-Path $Scenario.Outside 'target\sentinel.txt') 'must survive'
+        New-Junction -Link (Join-Path $Scenario.Base 'linked') -Target (Join-Path $Scenario.Outside 'target')
+    }
+
+    $script:installedTree = @(
+        'AutopilotMonitor\'
+        'AutopilotMonitor\Agent\'
+        'AutopilotMonitor\Agent\AutopilotMonitor.Agent.Core.dll'
+        'AutopilotMonitor\Agent\AutopilotMonitor.Agent.cat'
+        'AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe'
+        'AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe.config'
+        'AutopilotMonitor\Logs\'
+    )
+}
+
+Describe 'loader 1.4' {
+    AfterEach { Assert-PromiseOfLastRun }
+    It 'installs and leaves only the agent folder, with its log carried over' {
+        $s = New-Scenario
+        $run = Invoke-Scenario $s -Script $script:loaderPath -Arguments @('-MaxBootstrapWindowHours', '24')
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-loader.log' + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+        Get-Tree $s.Temp | Should -BeNullOrEmpty
+        $run.Trace | Should -Contain 'Get-BootstrapDecision|MaxBootstrapWindowHours=24'
+        $run.Trace | Should -Contain 'Invoke-WebRequest|https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor.ps1'
+        $run.Trace | Should -Contain 'Invoke-WebRequest|https://download.autopilotmonitor.com/agent/AutopilotMonitor-Agent.zip'
+        $run.Trace | Should -Contain 'Invoke-RestMethod|https://download.autopilotmonitor.com/agent/version.json'
+        @($run.Trace | Where-Object { $_ -like 'Test-FileCatalog|*' }).Count | Should -Be 1
+        @($run.Trace | Where-Object { $_ -like 'Invoke-AgentInstallMode|*\AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe --install exists=True' }).Count | Should -Be 1
+        $run.StdOut | Should -Match 'Bootstrap Completed Successfully'
+        Get-Content -LiteralPath (Join-Path $s.Base 'Logs\bootstrap-loader.log') -Raw | Should -Match '=== Autopilot Monitor bootstrap loader v1\.4 started'
+        if ($script:isElevated) {
+            (Get-Item -LiteralPath $s.Base).GetAccessControl('Owner').GetOwner([System.Security.Principal.SecurityIdentifier]).Value | Should -Be 'S-1-5-32-544'
+        }
+    }
+
+    It 'skips and leaves nothing behind, also what older versions left and files no version knows' {
+        $s = New-Scenario
+        Add-Leftovers $s
+        $run = Invoke-Scenario $s -Script $script:loaderPath -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        Get-Content -LiteralPath (Join-Path $s.Outside 'target\sentinel.txt') | Should -Be 'must survive'
+        $run.StdOut | Should -Match 'No agent on this device: .* removed\.'
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*Agent.zip' }).Count | Should -Be 0
+    }
+
+    It 'leaves the folder of an agent exactly as it is, self-update leftovers included' {
+        $s = New-Scenario
+        Add-File (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.exe') 'running agent'
+        Add-File (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.Core.dll.old') 'previous version'
+        Add-File (Join-Path $s.Base 'Updates\AutopilotMonitor-Agent-Update.zip') 'update'
+        Add-File (Join-Path $s.Base 'Agent-Update\AutopilotMonitor.Agent.Core.dll') 'staged'
+        Add-File (Join-Path $s.Base 'Logs\agent.log') 'agent log'
+        Add-File (Join-Path $s.Base 'State\session.id') 'session'
+        $before = Get-Tree $s.ProgramData -Content
+        $run = Invoke-Scenario $s -Script $script:loaderPath
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData -Content | Should -Be $before
+        $run.StdOut | Should -Match 'Agent present \(agent executable\)'
+        @($run.Trace | Where-Object { $_ -like 'Invoke-AgentInstallMode|*' }).Count | Should -Be 0
+    }
+
+    It 'leaves the folder alone when only the deployment marker <Case>' -TestCases @(
+        @{ Case = 'is there (logs kept after enrollment)'; Options = @{ Marker = '2026-10-01T08:00:00Z' } }
+        @{ Case = 'is missing but the agent task exists'; Options = @{ TaskPresent = $true } }
+    ) {
+        $s = New-Scenario
+        Add-File (Join-Path $s.Base 'Logs\agent.log') 'kept log'
+        $before = Get-Tree $s.ProgramData -Content
+        $run = Invoke-Scenario $s -Script $script:loaderPath -Options $Options
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData -Content | Should -Be $before
+    }
+
+    It 'keeps its log when the installer fails; a later run removes it, a run within the hour leaves it' {
+        $s = New-Scenario
+        Remove-Item -LiteralPath (Join-Path $s.Server 'version.json')
+        $failed = Invoke-Scenario $s -Script $script:loaderPath
+
+        $failed.ExitCode | Should -Be 0
+        @(Get-StdErrLines $failed).Count | Should -Be 1
+        $failed.StdErr | Should -Match '^AutopilotMonitor bootstrap failed: No SHA-256 hash available'
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @(
+            'AutopilotMonitor-Loader-<id>\'
+            'AutopilotMonitor-Loader-<id>\bootstrap-loader.log'
+            'AutopilotMonitor\'
+            'AutopilotMonitor\Logs\'
+            'AutopilotMonitor\Logs\bootstrap-loader.log'
+            'AutopilotMonitor\Logs\bootstrap-script.log'
+        ))
+
+        Set-Content -LiteralPath (Join-Path $s.Server 'version.json') -Value ('{"version":"2.0.9999","sha256":"' + $script:agentZipSha256 + '"}')
+        $kept = (Get-ChildItem -LiteralPath $s.ProgramData -Directory -Filter 'AutopilotMonitor-Loader-*').FullName
+
+        # Minutes later the folder may still belong to a running loader: it stays.
+        $soon = Invoke-Scenario $s -Script $script:loaderPath
+        $soon.ExitCode | Should -Be 0
+        $soon.StdErr | Should -BeNullOrEmpty
+        Test-Path -LiteralPath $kept | Should -BeTrue
+        Get-Tree $s.Base | Should -Be (Join-Tree ((@($script:installedTree) | ForEach-Object { $_ -replace '^AutopilotMonitor\\', '' } | Where-Object { $_ }) + 'Logs\bootstrap-loader.log' + 'Logs\bootstrap-script.log'))
+
+        [System.IO.Directory]::SetCreationTimeUtc($kept, [System.DateTime]::UtcNow.AddHours(-2))
+        $later = Invoke-Scenario $s -Script $script:loaderPath -Options @{ Install = $false }
+        $later.ExitCode | Should -Be 0
+        Test-Path -LiteralPath $kept | Should -BeFalse
+    }
+
+    It 'runs nothing it cannot verify: <Case>' -TestCases @(
+        @{ Case = 'unsigned'; Options = @{ SignatureStatus = 'NotSigned' }; Edit = $null }
+        @{ Case = 'another publisher'; Options = @{ SignerSubject = 'CN=Somebody Else, O=Somebody Else Ltd, C=US' }; Edit = $null }
+        @{ Case = 'an installer below 2.8'; Options = @{}; Edit = @('$ScriptVersion = "2.9"', '$ScriptVersion = "2.7"') }
+        @{ Case = 'not the installer'; Options = @{}; Edit = @('$ScriptRole = "AutopilotMonitor-Installer"', '$ScriptRole = "AutopilotMonitor-Other"') }
+    ) {
+        $s = New-Scenario
+        if ($Edit) {
+            $served = Join-Path $s.Server 'Install-AutopilotMonitor.ps1'
+            $text = [System.IO.File]::ReadAllText($served)
+            $text.Contains($Edit[0]) | Should -BeTrue
+            [System.IO.File]::WriteAllText($served, $text.Replace($Edit[0], $Edit[1]))
+        }
+        $run = Invoke-Scenario $s -Script $script:loaderPath -Options $Options
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*Install-AutopilotMonitor.ps1' }).Count | Should -Be 3
+        @($run.Trace | Where-Object { $_ -like 'Get-BootstrapDecision|*' }).Count | Should -Be 0
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor-Loader-<id>\', 'AutopilotMonitor-Loader-<id>\bootstrap-loader.log'))
+    }
+
+    It 'refuses to run without SYSTEM or administrator rights and creates nothing' {
+        $s = New-Scenario
+        $run = Invoke-Scenario $s -Script $script:loaderPath -Options @{ Elevated = $false }
+
+        $run.ExitCode | Should -Be 0
+        @(Get-StdErrLines $run) | Should -Be 'AutopilotMonitor loader: not running as SYSTEM or administrator; nothing was downloaded or changed.'
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*' }).Count | Should -Be 0
+    }
+}
+
+Describe 'installer assigned directly' {
+    AfterEach { Assert-PromiseOfLastRun }
+    BeforeEach {
+        $s = New-Scenario
+        $imeCopy = Join-Path $s.Ime '0f1e2d3c-4b5a-6978-8796-a5b4c3d2e1f0.ps1'
+        Copy-Item -LiteralPath $script:installerPath -Destination $imeCopy
+    }
+
+    It 'installs, and the copy IME runs stays where IME put it' {
+        $run = Invoke-Scenario $s -Script $imeCopy
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+        Test-Path -LiteralPath $imeCopy | Should -BeTrue
+        Get-Tree $s.Temp | Should -BeNullOrEmpty
+    }
+
+    It 'skips and leaves nothing behind' {
+        Add-Leftovers $s
+        $run = Invoke-Scenario $s -Script $imeCopy -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        Get-Content -LiteralPath (Join-Path $s.Outside 'target\sentinel.txt') | Should -Be 'must survive'
+    }
+
+    # An agent that ran owns its folder, even after a failed --install; one that never started
+    # leaves only payload, which a later run would take for an agent.
+    It 'fails with exit code 1 and exactly one line on stderr: <Case>' -TestCases @(
+        @{ Case = 'the download fails'; Missing = 'AutopilotMonitor-Agent.zip'; Options = @{}; Message = 'AutopilotMonitor bootstrap failed: The remote server returned an error: (404) Not Found.*'; AgentFolder = 'gone' }
+        @{ Case = 'the payload fails its catalog'; Missing = $null; Options = @{ CatalogValid = $false }; Message = 'AutopilotMonitor bootstrap failed: Payload verification FAILED*'; AgentFolder = 'gone' }
+        @{ Case = 'the agent install fails'; Missing = $null; Options = @{ InstallExitCode = 7 }; Message = 'AutopilotMonitor bootstrap failed: Agent install failed with exit code 7'; AgentFolder = 'stays' }
+        @{ Case = 'the agent does not start'; Missing = $null; Options = @{ AgentStartFails = $true }; Message = "AutopilotMonitor bootstrap failed: Program 'AutopilotMonitor.Agent.exe' failed to run*"; AgentFolder = 'gone' }
+    ) {
+        if ($Missing) { Remove-Item -LiteralPath (Join-Path $s.Server $Missing) }
+        $run = Invoke-Scenario $s -Script $imeCopy -Options $Options
+
+        $run.ExitCode | Should -Be 1
+        @(Get-StdErrLines $run).Count | Should -Be 1
+        @(Get-StdErrLines $run)[0] | Should -BeLike $Message
+        Get-Tree $s.ProgramData | Should -Not -Match 'Agent-Install'
+        Test-Path -LiteralPath (Join-Path $s.Base 'Agent') | Should -Be ($AgentFolder -eq 'stays')
+        Test-Path -LiteralPath (Join-Path $s.Base 'Logs\bootstrap-script.log') | Should -BeTrue
+    }
+
+    It 'refuses an agent package with an entry outside the payload folder and writes nothing outside' {
+        Set-EscapingPackage $s
+        $run = Invoke-Scenario $s -Script $imeCopy
+
+        $run.ExitCode | Should -Be 1
+        @(Get-StdErrLines $run).Count | Should -Be 1
+        @(Get-StdErrLines $run)[0] | Should -BeLike 'AutopilotMonitor bootstrap failed: The agent package has an entry that would be written outside the payload folder*'
+        Get-Tree $s.Root | Should -Not -Match 'outside\.txt'
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor\', 'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\bootstrap-script.log'))
+    }
+
+    It 'refuses to run without SYSTEM or administrator rights and changes nothing' {
+        Add-File (Join-Path $s.Base 'Logs\bootstrap-script.log') 'earlier run'
+        $before = Get-Tree $s.ProgramData -Content
+        $run = Invoke-Scenario $s -Script $imeCopy -Options @{ Elevated = $false }
+
+        $run.ExitCode | Should -Be 1
+        @(Get-StdErrLines $run) | Should -Be 'AutopilotMonitor bootstrap: not running as SYSTEM or administrator; nothing was changed.'
+        Get-Tree $s.ProgramData -Content | Should -Be $before
+    }
+
+    It 'does not install into a folder that holds another account''s entries, and leaves them' {
+        Add-File (Join-Path $s.Base 'foreign-planted.dll') 'planted'
+        Add-File (Join-Path $s.Base 'Logs\bootstrap-script.log') 'earlier run'
+        $run = Invoke-Scenario $s -Script $imeCopy
+
+        $run.ExitCode | Should -Be 1
+        @(Get-StdErrLines $run).Count | Should -Be 1
+        $run.StdErr | Should -Match 'holds entries another account created'
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor\', 'AutopilotMonitor\foreign-planted.dll'))
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*' }).Count | Should -Be 0
+    }
+
+    It 'leaves another account''s entries and their folder when it skips' {
+        Add-File (Join-Path $s.Base 'foreign-planted.dll') 'planted'
+        Add-File (Join-Path $s.Base 'Logs\bootstrap-script.log') 'earlier run'
+        $run = Invoke-Scenario $s -Script $imeCopy -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor\', 'AutopilotMonitor\foreign-planted.dll'))
+    }
+
+    It 'never follows an agent folder that is a link: <Case>' -TestCases @(
+        @{ Case = 'install'; Install = $true; ExitCode = 1 }
+        @{ Case = 'skip'; Install = $false; ExitCode = 0 }
+    ) {
+        Add-File (Join-Path $s.Outside 'target\sentinel.txt') 'must survive'
+        New-Junction -Link $s.Base -Target (Join-Path $s.Outside 'target')
+        $run = Invoke-Scenario $s -Script $imeCopy -Options @{ Install = $Install }
+
+        $run.ExitCode | Should -Be $ExitCode
+        Get-Tree $s.ProgramData | Should -Be 'AutopilotMonitor -> link'
+        Get-Tree (Join-Path $s.Outside 'target') | Should -Be 'sentinel.txt'
+    }
+}
+
+Describe 'loader 1.2, frozen' {
+    AfterEach { Assert-PromiseOfLastRun }
+    It 'installs with the current installer, which removes its copy and keeps the loader start line' {
+        $s = New-Scenario
+        $run = Invoke-Scenario $s -Script $script:loader12Path
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-loader.log' + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+        $log = @(Get-Content -LiteralPath (Join-Path $s.Base 'Logs\bootstrap-loader.log'))
+        $log[0] | Should -Match '^\[\d{4}-\d\d-\d\d \d\d:\d\d:\d\d\] === Autopilot Monitor bootstrap loader v1\.2 started \(carried over by the bootstrapper\) ===$'
+    }
+
+    It 'leaves the folder of an agent as it is, but not the copy the old loader saved there' {
+        $s = New-Scenario
+        Add-File (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.exe') 'running agent'
+        Add-File (Join-Path $s.Base 'Logs\agent.log') 'agent log'
+        $run = Invoke-Scenario $s -Script $script:loader12Path
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @(
+            'AutopilotMonitor\', 'AutopilotMonitor\Agent\', 'AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe'
+            'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\agent.log', 'AutopilotMonitor\Logs\bootstrap-loader.log'
+        ))
+        Get-Content -LiteralPath (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.exe') | Should -Be 'running agent'
+    }
+
+    It 'skips with the current installer and leaves nothing behind' {
+        $s = New-Scenario
+        Add-Leftovers $s
+        $run = Invoke-Scenario $s -Script $script:loader12Path -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        Get-Content -LiteralPath (Join-Path $s.Outside 'target\sentinel.txt') | Should -Be 'must survive'
+    }
+}
+
+Describe 'bootstrap MSI layouts, started in the folder the MSI installed' {
+    AfterEach { Assert-PromiseOfLastRun }
+    It '<Name> skips and leaves <Left>' -TestCases @(
+        @{ Name = 'MSI 1.3 (loader in Program Files)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader'; Location = 'program-files'; Arguments = @('-LogFileName', 'bootstrap-msi.log'); Left = 'nothing'; Tree = @() }
+        @{ Name = 'MSI 1.2 (loader 1.3)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader'; Arguments = @('-LogFileName', 'bootstrap-msi.log'); Left = 'nothing'; Tree = @() }
+        @{ Name = 'MSI 1.1 (loader 1.2)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader12'; Arguments = @('-LogFileName', 'bootstrap-msi.log'); Left = 'nothing'; Tree = @() }
+        @{ Name = 'MSI 1.0 (own runner)'; File = 'Invoke-BootstrapDownload.ps1'; Source = 'msiRunner'; Arguments = @(); Left = 'only the log the runner holds open'; Tree = @('AutopilotMonitor\', 'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\bootstrap-msi.log') }
+    ) {
+        $s = New-Scenario
+        $msi = if ($Location -eq 'program-files') { Join-Path $s.Root 'ProgramFiles\AutopilotMonitor\Bootstrap' } else { Join-Path $s.Base 'Msi' }
+        New-Item -ItemType Directory -Path $msi -Force | Out-Null
+        $sourcePath = @{ loader = $script:loaderPath; loader12 = $script:loader12Path; msiRunner = $script:msiRunnerPath }[$Source]
+        Copy-Item -LiteralPath $sourcePath -Destination (Join-Path $msi $File)
+        $run = Invoke-Scenario $s -Script (Join-Path $msi $File) -Arguments $Arguments -WorkingDirectory $msi -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree $Tree)
+        if ($Location -eq 'program-files') { $run.StdOut | Should -Match 'Bootstrap removed, and with it the empty' }
+    }
+
+    # MSI 1.3 installed its loader under Program Files, where nothing of ours belongs; the
+    # installer takes it away in every outcome, also when an agent is present.
+    It 'MSI 1.3 leaves nothing under Program Files when an agent is present' {
+        $s = New-Scenario
+        $msi = Join-Path $s.ProgramFiles 'AutopilotMonitor\Bootstrap'
+        New-Item -ItemType Directory -Path $msi -Force | Out-Null
+        Copy-Item -LiteralPath $script:loaderPath -Destination (Join-Path $msi 'Start-AutopilotMonitor.ps1')
+        Add-File (Join-Path $s.Base 'Logs\agent.log') 'kept log'
+        $before = Get-Tree $s.ProgramData -Content
+        $run = Invoke-Scenario $s -Script (Join-Path $msi 'Start-AutopilotMonitor.ps1') -Arguments @('-LogFileName', 'bootstrap-msi.log') -WorkingDirectory $msi -Options @{ Marker = '2026-10-01T08:00:00Z' }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData -Content | Should -Be $before
+        Test-Path -LiteralPath (Join-Path $s.ProgramFiles 'AutopilotMonitor') | Should -BeFalse
+        $run.StdOut | Should -Match 'Agent present \(deployment marker\): .* is left as it is\.'
+        $run.StdOut | Should -Match 'Bootstrap removed, and with it the empty'
+    }
+
+    It '<Name> installs' -TestCases @(
+        @{ Name = 'MSI 1.3 (loader in Program Files)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader'; Location = 'program-files'; Arguments = @('-LogFileName', 'bootstrap-msi.log') }
+        @{ Name = 'MSI 1.2 (loader 1.3)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader'; Arguments = @('-LogFileName', 'bootstrap-msi.log') }
+        @{ Name = 'MSI 1.1 (loader 1.2)'; File = 'Start-AutopilotMonitor.ps1'; Source = 'loader12'; Arguments = @('-LogFileName', 'bootstrap-msi.log') }
+        @{ Name = 'MSI 1.0 (own runner)'; File = 'Invoke-BootstrapDownload.ps1'; Source = 'msiRunner'; Arguments = @() }
+    ) {
+        $s = New-Scenario
+        $msi = if ($Location -eq 'program-files') { Join-Path $s.Root 'ProgramFiles\AutopilotMonitor\Bootstrap' } else { Join-Path $s.Base 'Msi' }
+        New-Item -ItemType Directory -Path $msi -Force | Out-Null
+        $sourcePath = @{ loader = $script:loaderPath; loader12 = $script:loader12Path; msiRunner = $script:msiRunnerPath }[$Source]
+        Copy-Item -LiteralPath $sourcePath -Destination (Join-Path $msi $File)
+        $run = Invoke-Scenario $s -Script (Join-Path $msi $File) -Arguments $Arguments -WorkingDirectory $msi
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-msi.log' + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+        if ($Location -eq 'program-files') { $run.StdOut | Should -Match 'Bootstrap removed, and with it the empty' }
+    }
+}
+
+# MSI 1.4 installs the loader copy under <base>\Msi and runs this command as SYSTEM from
+# System32: read the copy once, check our signature on those bytes, run those bytes. The
+# command is taken from Package.wxs and formatted as Windows Installer formats it (measured
+# on the built MSI, 2026-10-23); the wrapper runs it where the stubs apply.
+Describe 'bootstrap MSI 1.4: the action checks the loader copy and runs what it read' {
+    AfterEach { Assert-PromiseOfLastRun }
+    BeforeAll {
+        $wxs = [xml][System.IO.File]::ReadAllText((Join-Path $script:repoRoot 'src\Agent\AutopilotMonitor.BootstrapMsi\Package.wxs'))
+        $action = @($wxs.Wix.Package.CustomAction) | Where-Object { $_.Id -eq 'RunBootstrap' }
+        if ($action.ExeCommand -notmatch ' -Command "(.*)"$') { throw 'Package.wxs: the action has no -Command argument.' }
+        $script:actionCommand = $Matches[1]
+        # What the build bakes in: the hash of the loader the package embeds, here the one served.
+        $script:loaderSha256 = (Get-FileHash -LiteralPath $script:loaderPath -Algorithm SHA256).Hash.ToLowerInvariant()
+
+        function Format-MsiAction {
+            param([string]$Text, [string]$InstallFolder)
+            return $Text.Replace('$(var.LoaderSha256)', $script:loaderSha256).Replace('[\[]', '[').Replace('[\]]', ']').Replace('[\{]', '{').Replace('[\}]', '}').Replace('[INSTALLFOLDER]', $InstallFolder)
+        }
+
+        function Add-MsiCopy {
+            param($Scenario)
+            $msi = Join-Path $Scenario.Base 'Msi'
+            New-Item -ItemType Directory -Path $msi -Force | Out-Null
+            Copy-Item -LiteralPath $script:loaderPath -Destination (Join-Path $msi 'Start-AutopilotMonitor.ps1')
+        }
+
+        function Invoke-MsiAction {
+            param($Scenario, [hashtable]$Options = @{})
+            $command = Format-MsiAction -Text $script:actionCommand -InstallFolder ((Join-Path $Scenario.Base 'Msi') + '\')
+            return Invoke-Scenario $Scenario -WorkingDirectory "$env:SystemRoot\System32" -Options ($Options + @{ CommandText = $command })
+        }
+
+        $script:copyOnlyTree = @('AutopilotMonitor\', 'AutopilotMonitor\Msi\', 'AutopilotMonitor\Msi\Start-AutopilotMonitor.ps1')
+    }
+
+    It 'is PowerShell that parses, with every bracket and brace escaped for Windows Installer' {
+        # Without the [\x] escapes, the only bracket left is the one property reference.
+        ($script:actionCommand -replace '\[\\.\]', '').Replace('[INSTALLFOLDER]', '') | Should -Not -Match '[{}\[\]]'
+        @([regex]::Matches($script:actionCommand, '\[[A-Za-z0-9_.]+\]') | ForEach-Object { $_.Value } | Sort-Object -Unique) | Should -Be @('[INSTALLFOLDER]')
+        $errors = $null
+        [System.Management.Automation.Language.Parser]::ParseInput((Format-MsiAction -Text $script:actionCommand -InstallFolder 'C:\ProgramData\AutopilotMonitor\Msi\'), [ref]$null, [ref]$errors) | Out-Null
+        @($errors) | Should -BeNullOrEmpty
+    }
+
+    It 'installs, and the copy goes with the emptied agent folder' {
+        $s = New-Scenario
+        Add-MsiCopy $s
+        $run = Invoke-MsiAction $s
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-msi.log' + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+        @($run.Trace | Where-Object { $_ -like 'Get-AuthenticodeSignature|content:*' }).Count | Should -Be 1
+        @($run.Trace | Where-Object { $_ -like 'Get-BootstrapDecision|*' }).Count | Should -Be 1
+        $run.StdOut | Should -Match 'Bootstrap Completed Successfully'
+        Get-Content -LiteralPath (Join-Path $s.Base 'Logs\bootstrap-msi.log') -Raw | Should -Match '=== Autopilot Monitor bootstrap loader v1\.4 started'
+    }
+
+    It 'skips and leaves nothing behind' {
+        $s = New-Scenario
+        Add-MsiCopy $s
+        $run = Invoke-MsiAction $s -Options @{ Install = $false }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        $run.StdOut | Should -Match 'No agent on this device: .* removed\.'
+    }
+
+    It 'leaves nothing behind when only the deployment marker is there' {
+        $s = New-Scenario
+        Add-MsiCopy $s
+        $run = Invoke-MsiAction $s -Options @{ Marker = '2026-10-01T08:00:00Z' }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+        $run.StdOut | Should -Match 'Agent present \(deployment marker\): .*\\Msi removed, and with it the empty'
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*Agent.zip' }).Count | Should -Be 0
+    }
+
+    It 'removes the copy and leaves the folder of an agent as it is' {
+        $s = New-Scenario
+        Add-File (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.exe') 'running agent'
+        Add-File (Join-Path $s.Base 'Logs\agent.log') 'agent log'
+        Add-MsiCopy $s
+        $run = Invoke-MsiAction $s
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor\', 'AutopilotMonitor\Agent\', 'AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe', 'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\agent.log'))
+        $run.StdOut | Should -Match 'Agent present \(agent executable\): .*\\Msi removed\.'
+        @($run.Trace | Where-Object { $_ -like 'Invoke-AgentInstallMode|*' }).Count | Should -Be 0
+    }
+
+    It 'runs nothing it cannot verify: <Case>' -TestCases @(
+        @{ Case = 'unsigned'; Options = @{ SignatureStatus = 'NotSigned' }; Append = $null }
+        @{ Case = 'changed after signing'; Options = @{ SignatureStatus = 'HashMismatch' }; Append = $null }
+        @{ Case = 'another publisher'; Options = @{ SignerSubject = 'CN=Somebody Else, O=Somebody Else Ltd, C=US' }; Append = $null }
+        @{ Case = 'not the loader the package embeds, however validly signed'; Options = @{}; Append = "`r`n# one more line" }
+    ) {
+        $s = New-Scenario
+        Add-MsiCopy $s
+        if ($Append) { [System.IO.File]::AppendAllText((Join-Path $s.Base 'Msi\Start-AutopilotMonitor.ps1'), $Append) }
+        $run = Invoke-MsiAction $s -Options $Options
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree $script:copyOnlyTree)
+        @($run.Trace | Where-Object { $_ -like 'Get-AuthenticodeSignature|content:*' }).Count | Should -Be 1
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*' }).Count | Should -Be 0
+        @($run.Trace | Where-Object { $_ -like 'Get-BootstrapDecision|*' }).Count | Should -Be 0
+    }
+}
+
+Describe 'OOBE script, as the backend generates it' {
+    AfterEach { Assert-PromiseOfLastRun }
+    It 'installs the agent with the bootstrap token and leaves only the agent folder' {
+        $s = New-Scenario
+        Add-Leftovers $s
+        $run = Invoke-Scenario $s -Script $script:oobeScriptPath -Options @{ Iex = $true }
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\oobe_bootstrap.log'))
+        Get-Tree $s.Temp | Should -BeNullOrEmpty
+        Get-Content -LiteralPath (Join-Path $s.Outside 'target\sentinel.txt') | Should -Be 'must survive'
+        $run.Trace | Should -Contain ('Invoke-AgentInstallMode|' + $s.Base + '\Agent\AutopilotMonitor.Agent.exe --install --no-auth --bootstrap-token 22222222-2222-2222-2222-222222222222 --tenant-id 11111111-1111-1111-1111-111111111111 exists=True')
+        @($run.Trace | Where-Object { $_ -like 'Test-FileCatalog|*' }).Count | Should -Be 1
+    }
+
+    It 'only runs --install again when the agent is there' {
+        $s = New-Scenario
+        Add-File (Join-Path $s.Base 'Agent\AutopilotMonitor.Agent.exe') 'running agent'
+        Add-File (Join-Path $s.Base 'State\session.id') 'session'
+        $run = Invoke-Scenario $s -Script $script:oobeScriptPath -Options @{ Iex = $true }
+
+        $run.ExitCode | Should -Be 0
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @(
+            'AutopilotMonitor\', 'AutopilotMonitor\Agent\', 'AutopilotMonitor\Agent\AutopilotMonitor.Agent.exe'
+            'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\oobe_bootstrap.log', 'AutopilotMonitor\State\', 'AutopilotMonitor\State\session.id'
+        ))
+        @($run.Trace | Where-Object { $_ -like 'Invoke-WebRequest|*' }).Count | Should -Be 0
+        @($run.Trace | Where-Object { $_ -like 'Invoke-AgentInstallMode|*' }).Count | Should -Be 1
+    }
+
+    It 'refuses an agent package with an entry outside the payload folder and writes nothing outside' {
+        $s = New-Scenario
+        Set-EscapingPackage $s
+        $run = Invoke-Scenario $s -Script $script:oobeScriptPath -Options @{ Iex = $true }
+
+        $run.ExitCode | Should -Be 1
+        $run.StdOut | Should -Match 'The agent package has an entry that would be written outside the payload folder'
+        Get-Tree $s.Root | Should -Not -Match 'outside\.txt'
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree @('AutopilotMonitor\', 'AutopilotMonitor\Logs\', 'AutopilotMonitor\Logs\oobe_bootstrap.log'))
+    }
+
+    It 'refuses to run without SYSTEM or administrator rights and creates nothing' {
+        $s = New-Scenario
+        $run = Invoke-Scenario $s -Script $script:oobeScriptPath -Options @{ Iex = $true; Elevated = $false }
+
+        $run.ExitCode | Should -Be 1
+        $run.StdOut | Should -Match 'Run this script from PowerShell as SYSTEM or administrator\. Nothing was changed\.'
+        Get-Tree $s.ProgramData | Should -BeNullOrEmpty
+    }
+}
+
+Describe 'publish pipeline and dev channel' {
+    AfterEach { Assert-PromiseOfLastRun }
+    BeforeAll {
+        $script:rendered = Join-Path $TestDrive 'rendered'
+        $script:pwsh = (Get-Command pwsh -CommandType Application -ErrorAction Stop | Select-Object -First 1).Source
+        $script:publish = Join-Path $script:repoRoot '.github\scripts\Publish-BootstrapScripts.ps1'
+
+        # Output read as text from a process of its own: a stderr line must not become an error
+        # record, which ends the test under the 'Stop' preference CI runs with.
+        function Invoke-Publish {
+            param([string[]]$Arguments)
+            $psi = New-Object System.Diagnostics.ProcessStartInfo
+            $psi.FileName = $script:pwsh
+            $psi.Arguments = ('-NoProfile -File "{0}" {1}' -f $script:publish, ($Arguments -join ' ')).Trim()
+            $psi.UseShellExecute = $false
+            $psi.RedirectStandardOutput = $true
+            $psi.RedirectStandardError = $true
+            $process = [System.Diagnostics.Process]::Start($psi)
+            $stdout = $process.StandardOutput.ReadToEndAsync()
+            $stderr = $process.StandardError.ReadToEndAsync()
+            $process.WaitForExit()
+            return [pscustomobject]@{ ExitCode = $process.ExitCode; Output = @(($stdout.Result + "`n" + $stderr.Result) -split "`r?`n") }
+        }
+
+        $dryRun = Invoke-Publish @('-DryRun', '-SignedOutputDir', ('"' + $script:rendered + '"'))
+        if ($dryRun.ExitCode -ne 0) { throw "Publish dry run failed: $($dryRun.Output -join [Environment]::NewLine)" }
+        $script:publishOutput = $dryRun.Output
+    }
+
+    # A loader that went live first would refuse the installer still being served.
+    It 'puts both installers before both loaders' {
+        $order = @($script:publishOutput | Where-Object { $_ -match '\[dry-run\] (\S+\.ps1) ' } | ForEach-Object { $Matches[1] })
+        $order[0..3] | Should -Be @('Install-AutopilotMonitor.ps1', 'Install-AutopilotMonitor-Dev.ps1', 'Start-AutopilotMonitor.ps1', 'Start-AutopilotMonitor-Dev.ps1')
+        @($script:publishOutput | Where-Object { $_ -like '*Installer accepted: AutopilotMonitor-Installer v*' }).Count | Should -Be 2
+    }
+
+    It 'refuses to publish an installer the loader would refuse: <Case>' -TestCases @(
+        @{ Case = 'below the minimum version'; Old = '$ScriptVersion = "2.9"'; New = '$ScriptVersion = "2.7"' }
+        @{ Case = 'without its role line'; Old = '$ScriptRole = "AutopilotMonitor-Installer"'; New = '# no role' }
+        @{ Case = 'with a second version line'; Old = '$ScriptVersion = "2.9"'; New = "`$ScriptVersion = `"2.9`"`n`$ScriptVersion = `"3.0`"" }
+    ) {
+        $root = Join-Path $TestDrive ('repo' + [guid]::NewGuid().ToString('N').Substring(0, 6))
+        New-Item -ItemType Directory -Path (Join-Path $root 'scripts\Bootstrap') -Force | Out-Null
+        Copy-Item -LiteralPath $script:loaderPath -Destination (Join-Path $root 'scripts\Bootstrap')
+        $text = [System.IO.File]::ReadAllText($script:installerPath)
+        $text.Contains($Old) | Should -BeTrue
+        [System.IO.File]::WriteAllText((Join-Path $root 'scripts\Bootstrap\Install-AutopilotMonitor.ps1'), $text.Replace($Old, $New))
+
+        $refused = Invoke-Publish @('-DryRun', '-Channel', 'dev', '-RepoRoot', ('"' + $root + '"'))
+
+        $refused.ExitCode | Should -Not -Be 0
+        ($refused.Output -join "`n") | Should -Match 'The loader would refuse Install-AutopilotMonitor-Dev\.ps1'
+        ($refused.Output -join "`n") | Should -Not -Match '\[dry-run\]'
+    }
+
+    It 'the dev loader fetches the dev installer, which installs the dev agent' {
+        $s = New-Scenario
+        Copy-Item -LiteralPath (Join-Path $script:rendered 'Install-AutopilotMonitor-Dev.ps1') -Destination $s.Server
+        Copy-Item -LiteralPath $script:agentZip -Destination (Join-Path $s.Server 'AutopilotMonitor-Agent-dev.zip')
+        Set-Content -LiteralPath (Join-Path $s.Server 'version-dev.json') -Value ('{"version":"2.0.9999","sha256":"' + $script:agentZipSha256 + '"}')
+        Remove-Item -LiteralPath (Join-Path $s.Server 'Install-AutopilotMonitor.ps1'), (Join-Path $s.Server 'AutopilotMonitor-Agent.zip'), (Join-Path $s.Server 'version.json')
+        $devLoader = Join-Path $s.Ime 'Start-AutopilotMonitor-Dev.ps1'
+        Copy-Item -LiteralPath (Join-Path $script:rendered 'Start-AutopilotMonitor-Dev.ps1') -Destination $devLoader
+        $run = Invoke-Scenario $s -Script $devLoader
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        @($run.Trace | Where-Object { $_ -like 'Invoke-*' }) | Should -Be @(
+            'Invoke-WebRequest|https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor-Dev.ps1'
+            'Invoke-RestMethod|https://download.autopilotmonitor.com/agent/version-dev.json'
+            'Invoke-WebRequest|https://download.autopilotmonitor.com/agent/AutopilotMonitor-Agent-dev.zip'
+            ('Invoke-AgentInstallMode|' + $s.Base + '\Agent\AutopilotMonitor.Agent.exe --install exists=True')
+        )
+        Get-Tree $s.ProgramData | Should -Be (Join-Tree ($script:installedTree + 'AutopilotMonitor\Logs\bootstrap-loader.log' + 'AutopilotMonitor\Logs\bootstrap-script.log'))
+    }
+
+    It 'the stable loader in its published form runs the stable installer in its published form' {
+        $s = New-Scenario
+        Copy-Item -LiteralPath (Join-Path $script:rendered 'Install-AutopilotMonitor.ps1') -Destination $s.Server -Force
+        $loader = Join-Path $s.Ime 'Start-AutopilotMonitor.ps1'
+        Copy-Item -LiteralPath (Join-Path $script:rendered 'Start-AutopilotMonitor.ps1') -Destination $loader
+        [System.IO.File]::ReadAllText($loader).Contains("`r`n") | Should -BeTrue
+        $run = Invoke-Scenario $s -Script $loader
+
+        $run.ExitCode | Should -Be 0
+        $run.StdErr | Should -BeNullOrEmpty
+        $run.StdOut | Should -Match 'Installer accepted: AutopilotMonitor-Installer v2\.9'
+        $run.StdOut | Should -Match 'Bootstrap Completed Successfully'
+    }
+}

scripts/Bootstrap/Start-AutopilotMonitor.Tests.ps1

@@ -3,7 +3,7 @@
 # The script under test is dot-sourced; its entry guard prevents the loader from
 # executing, so loading it here is side-effect free. Network and signature checks
 # are mocked -- what is verified is the DECISION: what does the loader accept, what
-# does it refuse, and how often does it retry.
+# does it refuse, how often does it retry, and what does it leave behind.
 #
 # Run under Windows PowerShell 5.1 to match the IME runtime:
 #   powershell.exe -NoProfile -Command "& { $c = New-PesterConfiguration; $c.Run.Path = 'scripts\Bootstrap'; $c.Output.Verbosity = 'Detailed'; Invoke-Pester -Configuration $c }"
@@ -20,6 +20,20 @@ BeforeAll {
         } else { $null }
         return [pscustomobject]@{ Status = $Status; SignerCertificate = $cert }
     }
+
+    # Arguments as PowerShell hands them to a script, names marked as names; an array of
+    # plain strings would bind by position instead.
+    function ConvertTo-ScriptArguments { return , $args }
+
+    function Get-ScriptAst {
+        param([string]$Path)
+        $tokens = $null; $errors = $null
+        $ast = [System.Management.Automation.Language.Parser]::ParseFile($Path, [ref]$tokens, [ref]$errors)
+        return [pscustomobject]@{ Ast = $ast; Tokens = $tokens; Errors = $errors }
+    }
+
+    $script:loaderPath = Join-Path $PSScriptRoot 'Start-AutopilotMonitor.ps1'
+    $script:installerPath = Join-Path $PSScriptRoot 'Install-AutopilotMonitor.ps1'
 }
 
 Describe 'Test-BootstrapSignature' {
@@ -69,22 +83,110 @@ Describe 'Test-BootstrapSignature' {
     }
 }
 
+Describe 'Get-InstallerIdentity' {
+    BeforeAll {
+        $script:roleLine = '$ScriptRole = "AutopilotMonitor-Installer"'
+    }
+
+    It 'reads the role and the version of LF text' {
+        $id = Get-InstallerIdentity -Text ("param()`n`$ScriptVersion = `"2.7`"`n" + $script:roleLine + "`n")
+        $id.Role | Should -BeExactly 'AutopilotMonitor-Installer'
+        $id.Version | Should -Be ([version]'2.7')
+    }
+
+    It 'reads CRLF text that ends in an Authenticode signature block' {
+        $text = (@('$ScriptVersion = "2.7"', $script:roleLine, '# SIG # Begin signature block', '# MIIFxwYJKoZIhvcNAQcCoIIFuDCCBbQCAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB', '# SIG # End signature block') -join "`r`n") + "`r`n"
+        (Get-InstallerIdentity -Text $text).Version | Should -Be ([version]'2.7')
+    }
+
+    It 'compares versions as numbers, so 2.10 is above 2.7' {
+        $id = Get-InstallerIdentity -Text ("`$ScriptVersion = `"2.10`"`n" + $script:roleLine + "`n")
+        $id.Version -gt [version]'2.7' | Should -BeTrue
+    }
+
+    It 'returns nothing for <Case>' -TestCases @(
+        @{ Case = 'a missing role line'; Lines = @('$ScriptVersion = "2.7"') }
+        @{ Case = 'a missing version line'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"') }
+        @{ Case = 'a role line in a comment'; Lines = @('# $ScriptRole = "AutopilotMonitor-Installer"', '$ScriptVersion = "2.7"') }
+        @{ Case = 'an indented version line'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"', '    $ScriptVersion = "2.7"') }
+        @{ Case = 'a second version line'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"', '$ScriptVersion = "2.7"', '$ScriptVersion = "9.9"') }
+        @{ Case = 'a second role line'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"', '$ScriptRole = "Other"', '$ScriptVersion = "2.7"') }
+        @{ Case = 'a pre-release version'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"', '$ScriptVersion = "2.7-beta"') }
+        @{ Case = 'a version line with more code'; Lines = @('$ScriptRole = "AutopilotMonitor-Installer"', '$ScriptVersion = "2.7"; $x = 1') }
+    ) {
+        Get-InstallerIdentity -Text (($Lines -join "`n") + "`n") | Should -BeNullOrEmpty
+    }
+
+    # The pair the loader and the installer in this repository must keep: the published
+    # installer has to pass the loader that ships with it.
+    It 'accepts the installer in this repository' {
+        $id = Get-InstallerIdentity -Text ([System.IO.File]::ReadAllText($script:installerPath))
+        $id.Role | Should -BeExactly $ExpectedInstallerRole
+        $id.Version -ge $MinimumInstallerVersion | Should -BeTrue
+    }
+}
+
+Describe 'Test-InstallerIdentity' {
+    BeforeEach {
+        Mock Write-Log { }
+        $script:candidate = Join-Path $TestDrive ("installer-" + [guid]::NewGuid().ToString('N') + '.ps1')
+    }
+
+    It 'accepts version <Version>' -TestCases @(@{ Version = '2.8' }, @{ Version = '2.10' }, @{ Version = '3.0.1' }) {
+        [System.IO.File]::WriteAllText($script:candidate, "`$ScriptVersion = `"$Version`"`n`$ScriptRole = `"AutopilotMonitor-Installer`"`n")
+        Test-InstallerIdentity -Path $script:candidate | Should -BeTrue
+    }
+
+    # Every installer the publisher ever signed keeps a valid signature; the minimum keeps the
+    # older ones from running.
+    It 'refuses an installer below the minimum version' {
+        [System.IO.File]::WriteAllText($script:candidate, "`$ScriptVersion = `"2.7`"`n`$ScriptRole = `"AutopilotMonitor-Installer`"`n")
+        Test-InstallerIdentity -Path $script:candidate | Should -BeFalse
+        Should -Invoke Write-Log -ParameterFilter { $Message -like '*below the minimum 2.8*' }
+    }
+
+    # The publisher signs other scripts too.
+    It 'refuses another role' {
+        [System.IO.File]::WriteAllText($script:candidate, "`$ScriptVersion = `"2.8`"`n`$ScriptRole = `"AutopilotMonitor-Uninstaller`"`n")
+        Test-InstallerIdentity -Path $script:candidate | Should -BeFalse
+    }
+
+    It 'refuses a script without the identity lines' {
+        [System.IO.File]::WriteAllText($script:candidate, "Write-Host 'signed, but not the installer'`n")
+        Test-InstallerIdentity -Path $script:candidate | Should -BeFalse
+    }
+
+    It 'refuses a file it cannot read' {
+        Test-InstallerIdentity -Path (Join-Path $TestDrive 'missing.ps1') | Should -BeFalse
+    }
+}
+
 Describe 'Get-VerifiedBootstrapScript' {
     BeforeEach {
         Mock Write-Log { }
         Mock Start-Sleep { }
-        Mock Invoke-WebRequest { }
+        Mock Invoke-WebRequest { [System.IO.File]::WriteAllText($OutFile, 'downloaded') }
+        Mock Test-InstallerIdentity { $true }
+        # The test account owns the folder; the loader asks for SYSTEM or Administrators.
+        Mock Test-IsOwnedByUs { $true }
+        $script:run = Join-Path $TestDrive ('run-' + [guid]::NewGuid().ToString('N').Substring(0, 8))
+        New-Item -ItemType Directory -Path $script:run | Out-Null
+        $script:dest = Join-Path $script:run 'Install-AutopilotMonitor.ps1'
+        $RunState = [pscustomobject]@{ LogFile = $null; Installer = $null }
+    }
+    AfterEach {
+        if ($RunState.Installer) { $RunState.Installer.Dispose() }
     }
 
     It 'returns after the first attempt when the download verifies' {
         Mock Test-BootstrapSignature { $true }
-        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination 'TestDrive:\s.ps1' | Should -BeTrue
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeTrue
         Should -Invoke Invoke-WebRequest -Times 1 -Exactly
     }
 
     It 'gives up after three attempts when verification keeps failing' {
         Mock Test-BootstrapSignature { $false }
-        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination 'TestDrive:\s.ps1' | Should -BeFalse
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeFalse
         Should -Invoke Invoke-WebRequest -Times 3 -Exactly
     }
 
@@ -93,27 +195,247 @@ Describe 'Get-VerifiedBootstrapScript' {
     It 'retries a failed verification and accepts a later attempt' {
         $script:calls = 0
         Mock Test-BootstrapSignature { $script:calls++; return ($script:calls -ge 2) }
-        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination 'TestDrive:\s.ps1' | Should -BeTrue
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeTrue
         Should -Invoke Invoke-WebRequest -Times 2 -Exactly
     }
 
     It 'retries a transport failure' {
         $script:downloads = 0
-        Mock Invoke-WebRequest { $script:downloads++; if ($script:downloads -eq 1) { throw 'connection reset' } }
+        Mock Invoke-WebRequest { $script:downloads++; if ($script:downloads -eq 1) { throw 'connection reset' }; [System.IO.File]::WriteAllText($OutFile, 'downloaded') }
         Mock Test-BootstrapSignature { $true }
-        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination 'TestDrive:\s.ps1' | Should -BeTrue
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeTrue
         Should -Invoke Invoke-WebRequest -Times 2 -Exactly
     }
 
-    It 'never executes anything when no attempt verifies' {
+    It 'refuses a validly signed script that is not the current installer' {
+        Mock Test-BootstrapSignature { $true }
+        Mock Test-InstallerIdentity { $false }
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeFalse
+        Should -Invoke Invoke-WebRequest -Times 3 -Exactly
+    }
+
+    # The identity lines count only once the signature proves they are the publisher's.
+    It 'reads the identity only after the signature passed' {
         Mock Test-BootstrapSignature { $false }
-        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination 'TestDrive:\s.ps1' | Should -BeFalse
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeFalse
+        Should -Invoke Test-InstallerIdentity -Times 0 -Exactly
+    }
+
+    It 'stops without downloading when the run folder is no longer a folder of ours' {
+        Mock Test-IsOwnedByUs { $false }
+        Mock Test-BootstrapSignature { $true }
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeFalse
+        Should -Invoke Invoke-WebRequest -Times 0 -Exactly
+    }
+
+    # The file that was checked is the file that runs: nobody can replace it in between.
+    It 'keeps the verified file open, so it cannot be replaced or deleted' {
+        Mock Test-BootstrapSignature { $true }
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeTrue
+        $RunState.Installer | Should -Not -BeNullOrEmpty
+        { [System.IO.File]::WriteAllText($script:dest, 'replaced') } | Should -Throw
+        { [System.IO.File]::Delete($script:dest) } | Should -Throw
+        [System.IO.File]::ReadAllText($script:dest) | Should -Be 'downloaded'
+    }
+
+    It 'holds nothing when no attempt verifies' {
+        Mock Test-BootstrapSignature { $false }
+        Get-VerifiedBootstrapScript -Url 'https://example.invalid/s.ps1' -Destination $script:dest -RunFolder $script:run | Should -BeFalse
+        $RunState.Installer | Should -BeNullOrEmpty
+        { [System.IO.File]::Delete($script:dest) } | Should -Not -Throw
+    }
+}
+
+Describe 'Get-DownloadSecurityProtocol' {
+    It 'keeps the system default, which includes TLS 1.3' {
+        Get-DownloadSecurityProtocol -Current ([Net.SecurityProtocolType]::SystemDefault) | Should -Be ([Net.SecurityProtocolType]::SystemDefault)
+    }
+
+    It 'adds TLS 1.2 to an explicit list' {
+        Get-DownloadSecurityProtocol -Current ([Net.SecurityProtocolType]'Ssl3, Tls') | Should -Be ([Net.SecurityProtocolType]'Ssl3, Tls, Tls12')
+    }
+}
+
+Describe 'Remove-LoaderRunFiles' {
+    BeforeEach {
+        Mock Write-Host { }
+        $run = Join-Path $TestDrive ("run-" + [guid]::NewGuid().ToString('N'))
+        New-Item -ItemType Directory -Path $run | Out-Null
+        $installer = Join-Path $run 'Install-AutopilotMonitor.ps1'
+        $log = Join-Path $run 'bootstrap-loader.log'
+        Set-Content -Path $installer -Value 'downloaded'
+        Set-Content -Path $log -Value 'log'
+        $RunState = [pscustomobject]@{ LogFile = $log; Installer = $null }
+    }
+
+    It 'removes the download, the log and the folder' {
+        Remove-LoaderRunFiles -RunFolder $run -InstallerPath $installer
+        Test-Path -LiteralPath $run | Should -BeFalse
+        $RunState.LogFile | Should -BeNullOrEmpty
+    }
+
+    It 'releases the held download before deleting it' {
+        $RunState.Installer = New-Object System.IO.FileStream($installer, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::Read)
+        Remove-LoaderRunFiles -RunFolder $run -InstallerPath $installer
+        Test-Path -LiteralPath $run | Should -BeFalse
+        $RunState.Installer | Should -BeNullOrEmpty
+    }
+
+    It 'keeps the log and the folder with -KeepLog, but never the download' {
+        Remove-LoaderRunFiles -RunFolder $run -InstallerPath $installer -KeepLog
+        @(Get-ChildItem -LiteralPath $run -Force | ForEach-Object Name) | Should -Be @('bootstrap-loader.log')
+    }
+
+    It 'leaves a folder that holds anything else, without throwing' {
+        Set-Content -Path (Join-Path $run 'other.txt') -Value 'other'
+        { Remove-LoaderRunFiles -RunFolder $run -InstallerPath $installer } | Should -Not -Throw
+        @(Get-ChildItem -LiteralPath $run -Force | ForEach-Object Name) | Should -Be @('other.txt')
+        Should -Invoke Write-Host -ParameterFilter { "$Object" -like 'INFO: run folder*' }
+    }
+}
+
+Describe 'Start-BootstrapLoader' {
+    BeforeEach {
+        $script:savedProgramData = $env:ProgramData
+        $env:ProgramData = Join-Path $TestDrive ("pd-" + [guid]::NewGuid().ToString('N'))
+        New-Item -ItemType Directory -Path $env:ProgramData | Out-Null
+        $script:runFolder = Join-Path $env:ProgramData 'AutopilotMonitor-Loader-0a1b2c3d'
+        $script:marker = Join-Path $TestDrive ("ran-" + [guid]::NewGuid().ToString('N') + '.txt')
+
+        $RunState = [pscustomobject]@{ LogFile = $null; Installer = $null }
+        $InstallerArguments = @()
+
+        Mock Write-Host { }
+        Mock Start-Sleep { }
+        Mock Test-IsElevated { $true }
+        # A standard user cannot make Administrators the owner, so the run folder is a plain
+        # one here; New-RunFolder itself is tested with the installer, which shares it.
+        Mock New-RunFolder { [System.IO.Directory]::CreateDirectory($script:runFolder) | Out-Null; return $script:runFolder }
+    }
+
+    AfterEach {
+        $env:ProgramData = $script:savedProgramData
+    }
+
+    It 'refuses to run without SYSTEM or administrator rights and creates nothing' {
+        Mock Test-IsElevated { $false }
+        $stderr = New-Object System.IO.StringWriter
+        $previous = [Console]::Error
+        [Console]::SetError($stderr)
+        try { Start-BootstrapLoader } finally { [Console]::SetError($previous) }
+        $stderr.ToString() | Should -Match 'not running as SYSTEM or administrator'
+        Should -Invoke New-RunFolder -Times 0 -Exactly
+        @(Get-ChildItem -LiteralPath $env:ProgramData -Force).Count | Should -Be 0
+    }
+
+    It 'runs nothing and keeps only its log when no download verifies' {
+        Mock Get-VerifiedBootstrapScript { [System.IO.File]::WriteAllText($Destination, "Set-Content -LiteralPath '$($script:marker)' -Value ran"); $false }
+        Start-BootstrapLoader
+        Test-Path -LiteralPath $script:marker | Should -BeFalse
+        @(Get-ChildItem -LiteralPath $script:runFolder -Force | ForEach-Object Name) | Should -Be @('bootstrap-loader.log')
+        Get-Content -LiteralPath (Join-Path $script:runFolder 'bootstrap-loader.log') -Raw | Should -Match 'Nothing was executed'
+    }
+
+    It 'runs the verified installer with the passed arguments by name and removes its folder after exit 0' {
+        $agentLog = Join-Path $env:ProgramData 'AutopilotMonitor\Logs\agent.log'
+        New-Item -ItemType Directory -Path (Split-Path $agentLog) -Force | Out-Null
+        Set-Content -Path $agentLog -Value 'agent'
+        Mock Get-VerifiedBootstrapScript {
+            [System.IO.File]::WriteAllText($Destination, "param([string]`$AgentDownloadUrl = 'default', [int]`$MaxBootstrapWindowHours = 12)`nSet-Content -LiteralPath '$($script:marker)' -Value `"`$AgentDownloadUrl `$MaxBootstrapWindowHours`"`nexit 0`n")
+            $true
+        }
+        $InstallerArguments = ConvertTo-ScriptArguments -MaxBootstrapWindowHours 24
+
+        Start-BootstrapLoader
+
+        Get-Content -LiteralPath $script:marker | Should -Be 'default 24'
+        Test-Path -LiteralPath $script:runFolder | Should -BeFalse
+        Get-Content -LiteralPath $agentLog | Should -Be 'agent'
+    }
+
+    It 'keeps its log but not the installer when the installer fails' {
+        Mock Get-VerifiedBootstrapScript { [System.IO.File]::WriteAllText($Destination, "exit 1`n"); $true }
+        Start-BootstrapLoader
+        @(Get-ChildItem -LiteralPath $script:runFolder -Force | ForEach-Object Name) | Should -Be @('bootstrap-loader.log')
+        Get-Content -LiteralPath (Join-Path $script:runFolder 'bootstrap-loader.log') -Raw | Should -Match 'Installer finished \(exit code 1\)'
+    }
+
+    It 'keeps its log when the installer throws' {
+        Mock Get-VerifiedBootstrapScript { [System.IO.File]::WriteAllText($Destination, "throw 'installer broke'`n"); $true }
+        Start-BootstrapLoader
+        Get-Content -LiteralPath (Join-Path $script:runFolder 'bootstrap-loader.log') -Raw | Should -Match 'Installer threw: installer broke'
+    }
+
+    # An installer that ends without an exit code must not inherit a 0 from earlier work.
+    It 'does not take an earlier exit code for the installer''s' {
+        Mock Get-VerifiedBootstrapScript { [System.IO.File]::WriteAllText($Destination, "Write-Output 'no exit code'`n"); $true }
+        $global:LASTEXITCODE = 0
+        Start-BootstrapLoader
+        Test-Path -LiteralPath (Join-Path $script:runFolder 'bootstrap-loader.log') | Should -BeTrue
+    }
+
+    It 'names its version first in its log, in the form the installer carries over' {
+        Mock Get-VerifiedBootstrapScript { $false }
+        Start-BootstrapLoader
+        $first = (Get-Content -LiteralPath (Join-Path $script:runFolder 'bootstrap-loader.log'))[0]
+        $first | Should -Match '^\[\d{4}-\d\d-\d\d \d\d:\d\d:\d\d\] === Autopilot Monitor bootstrap loader v\d+(\.\d+){0,3} started'
+    }
+}
+
+Describe 'loader contract' {
+    BeforeAll {
+        $script:loader = Get-ScriptAst $script:loaderPath
+    }
+
+    It 'parses without errors' {
+        $script:loader.Errors.Count | Should -Be 0
+    }
+
+    # Unbound arguments reach the installer only while the script is not an advanced one.
+    It 'stays a plain script, so unbound arguments are kept for the installer' {
+        $script:loader.Ast.ParamBlock.Attributes.Count | Should -Be 0
+        @($script:loader.Ast.ParamBlock.Parameters.Attributes | Where-Object { $_.TypeName.Name -eq 'Parameter' }) | Should -BeNullOrEmpty
+    }
+
+    # The six functions also run in the installer and, embedded, in the OOBE script.
+    It 'carries the shared functions word for word as the installer has them' {
+        $installer = Get-ScriptAst $script:installerPath
+        foreach ($name in @('Test-IsElevated', 'New-ProtectedDirectorySecurity', 'Test-IsReparsePoint', 'Test-IsOwnedByUs', 'New-RunFolderName', 'New-RunFolder')) {
+            $mine = $script:loader.Ast.Find({ param($a) $a -is [System.Management.Automation.Language.FunctionDefinitionAst] -and $a.Name -eq $name }, $true)
+            $theirs = $installer.Ast.Find({ param($a) $a -is [System.Management.Automation.Language.FunctionDefinitionAst] -and $a.Name -eq $name }, $true)
+            $mine | Should -Not -BeNullOrEmpty -Because $name
+            $mine.Extent.Text | Should -BeExactly $theirs.Extent.Text -Because $name
+        }
+    }
+
+    It 'calls no command beyond the few it needs' {
+        $own = @($script:loader.Ast.FindAll({ param($a) $a -is [System.Management.Automation.Language.FunctionDefinitionAst] }, $true) | ForEach-Object { $_.Name })
+        $allowed = $own + @('Add-Content', 'ForEach-Object', 'Get-AuthenticodeSignature', 'Get-Date', 'Get-Item', 'Invoke-WebRequest', 'Join-Path', 'New-Object', 'Out-Null', 'Start-Sleep', 'Test-Path', 'Write-Host')
+        $used = @($script:loader.Ast.FindAll({ param($a) $a -is [System.Management.Automation.Language.CommandAst] }, $true) | ForEach-Object { $_.GetCommandName() } | Where-Object { $_ } | Sort-Object -Unique)
+        @($used | Where-Object { $allowed -notcontains $_ }) | Should -BeNullOrEmpty
+    }
+
+    It 'deletes only the download, its log and its own empty folder' {
+        $deletes = @($script:loader.Ast.FindAll({ param($a) $a -is [System.Management.Automation.Language.InvokeMemberExpressionAst] -and $a.Member.Extent.Text -eq 'Delete' }, $true))
+        $deletes.Count | Should -Be 3
+        foreach ($delete in $deletes) {
+            if ($delete.Expression.Extent.Text -eq '[System.IO.Directory]') {
+                $delete.Arguments[1].Extent.Text | Should -Be '$false'
+            } else {
+                $delete.Expression.Extent.Text | Should -Be '[System.IO.File]'
+            }
+        }
+    }
+
+    It 'never names the agent folder' {
+        $strings = @($script:loader.Tokens | Where-Object { $_ -is [System.Management.Automation.Language.StringToken] } | ForEach-Object { $_.Value })
+        @($strings | Where-Object { $_ -match '(^|\\)AutopilotMonitor($|\\)' }) | Should -BeNullOrEmpty
     }
 }
 
 Describe 'publish contract' {
     BeforeAll {
-        $script:loaderText = Get-Content (Join-Path $PSScriptRoot 'Start-AutopilotMonitor.ps1') -Raw
+        $script:loaderText = Get-Content $script:loaderPath -Raw
     }
 
     # Publish-BootstrapScripts.ps1 renders the -Dev loader by substituting this exact
@@ -127,7 +449,7 @@ Describe 'publish contract' {
     # The publisher parses this to write version.json.loaderVersion and to run the
     # version-bump guard.
     It 'declares a parsable ScriptVersion' {
-        $script:loaderText -match '\$ScriptVersion\s*=\s*"([\d\.\-a-zA-Z]+)"' | Should -BeTrue
+        $script:loaderText -match '(?m)^\$ScriptVersion = "\d+(\.\d+){1,3}"\r?$' | Should -BeTrue
     }
 
     It 'pins the expected publisher by subject, not by thumbprint' {
@@ -144,4 +466,16 @@ Describe 'publish contract' {
         $wxs.Contains('[INSTALLFOLDER]Start-AutopilotMonitor.ps1') | Should -BeTrue
         $wxs.Contains('-LogFileName bootstrap-msi.log') | Should -BeTrue
     }
+
+    # Everything of ours lives under ProgramData, so the copy the MSI installs does too, where
+    # the installer removes it. A standard user could have created that folder first, so the
+    # action never runs the file as such: it checks the signature on the bytes it read and runs
+    # those bytes, from System32.
+    It 'is installed by the bootstrap MSI under ProgramData and run only after the check' {
+        $wxs = Get-Content (Join-Path $PSScriptRoot '..\..\src\Agent\AutopilotMonitor.BootstrapMsi\Package.wxs') -Raw
+        $wxs | Should -Match '<StandardDirectory Id="CommonAppDataFolder">'
+        $wxs | Should -Not -Match 'ProgramFiles'
+        $wxs.Contains('Get-AuthenticodeSignature -Content $b -SourcePathOrExtension ''.ps1''') | Should -BeTrue
+        $wxs.Contains('Directory="System64Folder"') | Should -BeTrue
+    }
 }

scripts/Bootstrap/Start-AutopilotMonitor.ps1

@@ -1,107 +1,174 @@
 <#
 .SYNOPSIS
-    Stage 1 of the Autopilot Monitor bootstrap: fetches the current installer and runs it.
+    Downloads the current Autopilot Monitor installer and runs it.
 
 .DESCRIPTION
-    This is the file an administrator assigns in Intune, and the same file the bootstrap MSI
-    installs and runs -- one implementation for both delivery channels; the MSI is only the
-    packaging. It carries no enrollment logic at all: it downloads the published
-    Install-AutopilotMonitor.ps1, proves that it was signed by Autopilot Monitor, and runs it
-    in this process.
+    Assign this script in Intune once; the bootstrap MSI runs the same script. It downloads
+    Install-AutopilotMonitor.ps1 from download.autopilotmonitor.com and runs it only when the
+    file carries a valid signature from glueckkanja AG and is installer version 2.7 or later.
+    Because the installer is fetched on every run, this script does not need replacing when
+    the installer changes.
 
-    Why two stages: the installer holds every guard, relax rule and download path, and those
-    change. Whoever assigns the installer directly has to replace their Intune copy each
-    time; whoever assigns this loader never does, because the part that changes lives on the
-    server. Assigning the installer directly stays supported and unchanged.
+    The download and the log go into %ProgramData%\AutopilotMonitor-Loader-<random>, which only
+    SYSTEM and administrators can change. The loader keeps the downloaded file open from the
+    check to the end of the run, so what it checked is what runs. After a successful run the
+    folder is removed; after a failure it keeps the log for diagnosis, and a later installer
+    run removes it.
 
-    This file is deliberately boring. It is the one piece that cannot be fixed remotely, so
-    it does the least it can: download, verify, invoke, log.
+    The exit code is always 0, so the loader never fails enrollment. Without SYSTEM or
+    administrator rights it stops with an error and changes nothing.
 
-    Verification is by Authenticode publisher, not by hash. A hash oracle would have to be
-    fetched from the same host as the script itself, so it could not survive a compromise of
-    that host, while the expected publisher below travels with this file. It pins the
-    certificate SUBJECT and not a thumbprint, so a certificate renewal does not brick a
-    loader that is already deployed on devices.
-
-    Fail-soft: the loader always exits 0 and never throws into the caller. A device that
-    cannot reach the download endpoint is a device without monitoring, never a failed
-    enrollment step. Verification failures are the same: nothing runs, and the reason is in
-    the log. Refusing to execute unverified code as SYSTEM is the point of this file.
-
-    This file MUST remain pure ASCII (PS 5.1 reads BOM-less files as ANSI).
+    Any other arguments are passed to the installer, for example -MaxBootstrapWindowHours 24.
 
 .PARAMETER BootstrapUrl
-    Installer URL. Defaults to the published stable installer; the -Dev variant of this
-    loader is rendered from that default at publish time.
+    Installer to download. Default: the published installer.
 
 .PARAMETER LogFileName
-    Log file inside the agent log directory. The MSI channel passes bootstrap-msi.log so the
-    delivery channel stays visible in a diagnostics package; the diag tooling keys on these
-    names, so do not rename them.
-
-.PARAMETER BootstrapArguments
-    Everything else is passed through to the installer unchanged, so any parameter the
-    installer accepts can be set here without this file knowing about it.
-
-.EXAMPLE
-    .\Start-AutopilotMonitor.ps1
-
-.EXAMPLE
-    .\Start-AutopilotMonitor.ps1 -MaxBootstrapWindowHours 24
+    Name of the log file. Default: bootstrap-loader.log.
 
 .NOTES
-    Author  : Oliver Kieselbach (autopilotmonitor.com)
-    Runtime : Windows PowerShell 5.1, SYSTEM context, during Autopilot enrollment
-
-.CHANGELOG
-    2026-09-08  v1.2  Log the signer CN instead of the full EV subject; the full subject is
-                      logged only when the publisher is why a script was rejected.
-    2026-09-08  v1.1  Also used by the bootstrap MSI, which replaced its own copy of this
-                      logic; -LogFileName keeps the channel visible in diagnostics.
-    2026-09-08  v1.0  Initial version: two-stage bootstrap, publisher-pinned verification.
+    Requires Windows PowerShell 5.1.
+    Changes: https://docs.autopilotmonitor.com/changelog/platform-changelog
 #>
 
-[CmdletBinding()]
 param(
-    [Parameter(Mandatory = $false)]
     [string]$BootstrapUrl = "https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor.ps1",
 
-    [Parameter(Mandatory = $false)]
     [ValidatePattern('^[A-Za-z0-9._-]+$')]
-    [string]$LogFileName = "bootstrap-loader.log",
-
-    [Parameter(Mandatory = $false, ValueFromRemainingArguments = $true)]
-    [string[]]$BootstrapArguments
+    [string]$LogFileName = "bootstrap-loader.log"
 )
 
-# Script version (bump on meaningful changes; see .CHANGELOG above)
-$ScriptVersion = "1.2"
+# Unbound arguments reach the installer by name. [CmdletBinding()] or a [Parameter()]
+# attribute would reject them instead.
+$InstallerArguments = $args
 
-# The publisher every downloaded stage-2 script must carry. A -like pattern on the subject,
-# NOT a thumbprint: certificates are renewed, deployed loaders are not.
+$ScriptVersion = "1.4"
+
+# A subject pattern, not a thumbprint, so a certificate renewal keeps deployed loaders working.
 $ExpectedPublisher = "*O=glueckkanja AG*"
 
-$LoaderBasePath = "$env:ProgramData\AutopilotMonitor"
-$LoaderLogPath  = "$LoaderBasePath\Logs"
-$LogFile        = "$LoaderLogPath\$LogFileName"
-$BootstrapPath  = "$LoaderBasePath\Install-AutopilotMonitor.ps1"
+$ExpectedInstallerRole = "AutopilotMonitor-Installer"
+$MinimumInstallerVersion = [version]"2.8"
+
+$RunFolderPrefix = "AutopilotMonitor-Loader-"
 
 $DownloadAttempts = 3
 $RetryDelaySeconds = 10
 
-# Write-Host as well as the file: the Intune script output is what an administrator sees in
-# the portal, the file is what a support case reads.
+# The log file, and the handle that keeps the verified installer unchanged until the run ends.
+$RunState = [pscustomobject]@{ LogFile = $null; Installer = $null }
+
 function Write-Log {
     param([string]$Message)
     $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
     $logMessage = "[$timestamp] $Message"
     Write-Host $logMessage
-    Add-Content -Path $LogFile -Value $logMessage -ErrorAction SilentlyContinue
+    if ($RunState.LogFile) {
+        Add-Content -Path $RunState.LogFile -Value $logMessage -ErrorAction SilentlyContinue
+    }
 }
 
-# True only when the file is signed, the signature validates against the machine's trust
-# chain, and the signer is us. Any error is a false -- an unreadable signature is an
-# unverified script.
+### Shared with Install-AutopilotMonitor.ps1, word for word.
+
+function Test-IsElevated {
+    $identity = [System.Security.Principal.WindowsIdentity]::GetCurrent()
+    return (New-Object System.Security.Principal.WindowsPrincipal($identity)).IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator)
+}
+
+function New-ProtectedDirectorySecurity {
+    $security = New-Object System.Security.AccessControl.DirectorySecurity
+    $security.SetAccessRuleProtection($true, $false)
+    $inherit = [System.Security.AccessControl.InheritanceFlags]'ContainerInherit, ObjectInherit'
+    $propagation = [System.Security.AccessControl.PropagationFlags]::None
+    $system = New-Object System.Security.Principal.SecurityIdentifier([System.Security.Principal.WellKnownSidType]::LocalSystemSid, $null)
+    $admins = New-Object System.Security.Principal.SecurityIdentifier([System.Security.Principal.WellKnownSidType]::BuiltinAdministratorsSid, $null)
+    $users = New-Object System.Security.Principal.SecurityIdentifier([System.Security.Principal.WellKnownSidType]::BuiltinUsersSid, $null)
+    $security.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule($system, 'FullControl', $inherit, $propagation, 'Allow')))
+    $security.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule($admins, 'FullControl', $inherit, $propagation, 'Allow')))
+    $security.AddAccessRule((New-Object System.Security.AccessControl.FileSystemAccessRule($users, 'ReadAndExecute', $inherit, $propagation, 'Allow')))
+    $security.SetOwner($admins)
+    return $security
+}
+
+function Test-IsReparsePoint {
+    param([string]$Path)
+    return (([System.IO.File]::GetAttributes($Path) -band [System.IO.FileAttributes]::ReparsePoint) -ne 0)
+}
+
+function Test-IsOwnedByUs {
+    param([string]$Path)
+    try {
+        $owner = (Get-Item -LiteralPath $Path -Force -ErrorAction Stop).GetAccessControl([System.Security.AccessControl.AccessControlSections]::Owner).GetOwner([System.Security.Principal.SecurityIdentifier])
+        return ($owner.IsWellKnown([System.Security.Principal.WellKnownSidType]::LocalSystemSid) -or
+                $owner.IsWellKnown([System.Security.Principal.WellKnownSidType]::BuiltinAdministratorsSid))
+    } catch {
+        return $false
+    }
+}
+
+function New-RunFolderName {
+    $bytes = New-Object byte[] 4
+    $generator = [System.Security.Cryptography.RandomNumberGenerator]::Create()
+    try { $generator.GetBytes($bytes) } finally { $generator.Dispose() }
+    return -join ($bytes | ForEach-Object { $_.ToString('x2') })
+}
+
+function New-RunFolder {
+    param([string]$Parent, [string]$Prefix)
+    for ($attempt = 1; $attempt -le 3; $attempt++) {
+        $path = Join-Path $Parent ($Prefix + (New-RunFolderName))
+        if (Test-Path -LiteralPath $path) { continue }
+        [System.IO.Directory]::CreateDirectory($path, (New-ProtectedDirectorySecurity)) | Out-Null
+        if (-not (Test-IsReparsePoint $path) -and (Test-IsOwnedByUs $path)) { return $path }
+    }
+    throw "Could not create a run folder under $Parent."
+}
+
+### End of the shared functions.
+
+# Keeps the system default (0, which includes TLS 1.3); otherwise adds TLS 1.2.
+function Get-DownloadSecurityProtocol {
+    param([Net.SecurityProtocolType]$Current)
+    if ([int]$Current -eq 0) { return $Current }
+    return ($Current -bor [Net.SecurityProtocolType]::Tls12)
+}
+
+# Exactly one role line and one version line, each at the start of a line; $null otherwise.
+function Get-InstallerIdentity {
+    param([string]$Text)
+    $roles = [regex]::Matches($Text, '(?m)^\$ScriptRole[ \t]*=[ \t]*"([A-Za-z0-9.-]+)"[ \t]*\r?$')
+    $versions = [regex]::Matches($Text, '(?m)^\$ScriptVersion[ \t]*=[ \t]*"(\d+(?:\.\d+){1,3})"[ \t]*\r?$')
+    if ($roles.Count -ne 1 -or $versions.Count -ne 1) { return $null }
+    return [pscustomobject]@{ Role = $roles[0].Groups[1].Value; Version = [version]$versions[0].Groups[1].Value }
+}
+
+# Runs after the signature check, so the lines it reads are signed.
+function Test-InstallerIdentity {
+    param([string]$Path)
+    try {
+        $identity = Get-InstallerIdentity -Text ([System.IO.File]::ReadAllText($Path))
+    }
+    catch {
+        Write-Log "Identity check failed to run: $($_.Exception.Message)"
+        return $false
+    }
+    if ($null -eq $identity) {
+        Write-Log "REJECTED: the script does not declare exactly one role line and one version line."
+        return $false
+    }
+    if ($identity.Role -ne $ExpectedInstallerRole) {
+        Write-Log "REJECTED: role '$($identity.Role)' is not '$ExpectedInstallerRole'."
+        return $false
+    }
+    if ($identity.Version -lt $MinimumInstallerVersion) {
+        Write-Log "REJECTED: installer version $($identity.Version) is below the minimum $MinimumInstallerVersion."
+        return $false
+    }
+    Write-Log "Installer accepted: $($identity.Role) v$($identity.Version)."
+    return $true
+}
+
+# A valid signature from the expected publisher; any error counts as unverified.
 function Test-BootstrapSignature {
     param([string]$Path)
 
@@ -118,9 +185,7 @@ function Test-BootstrapSignature {
         return $false
     }
 
-    # The full subject of an EV certificate is a line of street address and registration
-    # numbers. The CN answers the only question the log has to answer; the full subject is
-    # logged when it is the reason for a rejection.
+    # The CN is enough for the log; the full subject is logged when it causes a rejection.
     $subject = if ($sig.SignerCertificate) { $sig.SignerCertificate.Subject } else { "<unsigned>" }
     $signer = if ($subject -match 'CN=([^,]+)') { $Matches[1] } else { $subject }
     Write-Log "Signature status: $($sig.Status). Signer: $signer"
@@ -138,20 +203,28 @@ function Test-BootstrapSignature {
     return $true
 }
 
-# Downloads the installer and returns $true once a downloaded copy passes verification.
-# Verification lives inside the retry loop on purpose: a truncated or proxy-mangled body
-# fails the signature check, and that is worth another attempt.
+# A download that fails verification, such as a truncated one, is retried too. The run folder
+# is checked before every attempt: one that is no longer a real folder of ours stops the run.
+# The downloaded file is opened for reading before it is checked and stays open until the run
+# ends, so no one can change or replace what was checked.
 function Get-VerifiedBootstrapScript {
-    param([string]$Url, [string]$Destination)
+    param([string]$Url, [string]$Destination, [string]$RunFolder)
 
     for ($attempt = 1; $attempt -le $DownloadAttempts; $attempt++) {
+        if ((Test-IsReparsePoint $RunFolder) -or -not (Test-IsOwnedByUs $RunFolder)) {
+            Write-Log "REJECTED: the run folder $RunFolder is no longer a folder of ours. Nothing was downloaded."
+            return $false
+        }
         try {
             Write-Log "Download attempt $attempt/$DownloadAttempts from $Url"
             Invoke-WebRequest -Uri $Url -OutFile $Destination -UseBasicParsing -TimeoutSec 60 -ErrorAction Stop
 
-            if (Test-BootstrapSignature -Path $Destination) {
+            $held = New-Object System.IO.FileStream($Destination, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::Read)
+            if ((Test-BootstrapSignature -Path $Destination) -and (Test-InstallerIdentity -Path $Destination)) {
+                $RunState.Installer = $held
                 return $true
             }
+            $held.Dispose()
         }
         catch {
             Write-Log "Download attempt $attempt failed: $($_.Exception.Message)"
@@ -165,51 +238,87 @@ function Get-VerifiedBootstrapScript {
     return $false
 }
 
-# Main flow. Only invoked when the script is run directly (see entry guard at the bottom),
-# so the Pester suite can dot-source this file without bootstrapping anything.
-function Start-BootstrapLoader {
-    New-Item -ItemType Directory -Force -Path $LoaderLogPath -ErrorAction SilentlyContinue | Out-Null
-
-    Write-Log "=== Autopilot Monitor bootstrap loader v$ScriptVersion started (user=$env:USERNAME, pid=$PID) ==="
-
-    # PS 5.1 on an OOBE device still defaults to TLS 1.0 for this process.
+# The download always goes. After an installer exit 0 the log and the folder go too;
+# otherwise they stay for diagnosis.
+function Remove-LoaderRunFiles {
+    param([string]$RunFolder, [string]$InstallerPath, [switch]$KeepLog)
+    if ($RunState.Installer) {
+        $RunState.Installer.Dispose()
+        $RunState.Installer = $null
+    }
     try {
-        [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+        if ([System.IO.File]::Exists($InstallerPath)) { [System.IO.File]::Delete($InstallerPath) }
+        if ($KeepLog) { return }
+        $logFile = $RunState.LogFile
+        $RunState.LogFile = $null
+        if ($logFile -and [System.IO.File]::Exists($logFile)) { [System.IO.File]::Delete($logFile) }
+        [System.IO.Directory]::Delete($RunFolder, $false)
     }
     catch {
-        Write-Log "INFO: could not raise the TLS protocol: $($_.Exception.Message)"
-    }
-
-    if (-not (Get-VerifiedBootstrapScript -Url $BootstrapUrl -Destination $BootstrapPath)) {
-        Write-Log "No verified installer available after $DownloadAttempts attempt(s). Nothing was executed."
-        return
-    }
-
-    Write-Log "Executing $BootstrapPath"
-
-    # Same process, so the execution policy this loader runs under applies to stage 2 as
-    # well and no second policy decision can strand the installer. Splatting an array of
-    # remaining arguments keeps this file free of any knowledge about the installer's
-    # parameters.
-    $arguments = @()
-    if ($BootstrapArguments) { $arguments = $BootstrapArguments }
-
-    try {
-        & $BootstrapPath @arguments
-        Write-Log "Installer finished (exit code $LASTEXITCODE)."
-    }
-    catch {
-        Write-Log "Installer threw: $($_.Exception.Message)"
+        Write-Host "INFO: run folder $RunFolder was not fully removed: $($_.Exception.Message)"
     }
 }
 
-# Entry guard: dot-sourcing (Pester) loads the functions without running the loader.
+function Start-BootstrapLoader {
+    if (-not (Test-IsElevated)) {
+        $message = "AutopilotMonitor loader: not running as SYSTEM or administrator; nothing was downloaded or changed."
+        Write-Host $message
+        [Console]::Error.WriteLine($message)
+        return
+    }
+
+    try {
+        [Net.ServicePointManager]::SecurityProtocol = Get-DownloadSecurityProtocol -Current ([Net.ServicePointManager]::SecurityProtocol)
+    }
+    catch {
+        Write-Host "INFO: could not adjust the TLS protocols: $($_.Exception.Message)"
+    }
+
+    try {
+        $runFolder = New-RunFolder -Parent $env:ProgramData -Prefix $RunFolderPrefix
+    }
+    catch {
+        Write-Host "AutopilotMonitor loader: no run folder ($($_.Exception.Message)). Nothing was downloaded or executed."
+        return
+    }
+
+    $RunState.LogFile = Join-Path $runFolder $LogFileName
+    Write-Log "=== Autopilot Monitor bootstrap loader v$ScriptVersion started (user=$env:USERNAME, pid=$PID) ==="
+    Write-Log ("PowerShell {0}, {1}, language mode {2}, run folder {3}" -f $PSVersionTable.PSVersion, $(if ([Environment]::Is64BitProcess) { '64-bit' } else { '32-bit' }), $ExecutionContext.SessionState.LanguageMode, $runFolder)
+
+    $installerPath = Join-Path $runFolder 'Install-AutopilotMonitor.ps1'
+    $succeeded = $false
+    try {
+        if (-not (Get-VerifiedBootstrapScript -Url $BootstrapUrl -Destination $installerPath -RunFolder $runFolder)) {
+            Write-Log "No verified installer available after $DownloadAttempts attempt(s). Nothing was executed."
+            return
+        }
+
+        Write-Log "Executing $installerPath"
+
+        # Same process, so the execution policy that admitted this script covers the installer.
+        # The exit code is reset so that an installer that throws cannot report an older one.
+        $global:LASTEXITCODE = $null
+        try {
+            & $installerPath @InstallerArguments
+            Write-Log "Installer finished (exit code $LASTEXITCODE)."
+            $succeeded = ($LASTEXITCODE -eq 0)
+        }
+        catch {
+            Write-Log "Installer threw: $($_.Exception.Message)"
+        }
+    }
+    finally {
+        Remove-LoaderRunFiles -RunFolder $runFolder -InstallerPath $installerPath -KeepLog:(-not $succeeded)
+    }
+}
+
+# Dot-sourcing (tests) loads the functions without running the loader.
 if ($MyInvocation.InvocationName -ne '.') {
     try {
         Start-BootstrapLoader
     }
     catch {
-        # Nothing above should throw; if it does, it must not become a failed Intune script.
         Write-Log "Loader failed: $($_.Exception.Message)"
     }
     exit 0

scripts/Bootstrap/Test-ShouldBootstrapAgent.ps1

@@ -1,9 +1,9 @@
 # Autopilot Monitor Bootstrap Guard Test
 # Dry-run only: does not exit, does not install, only reports what WOULD happen.
-# Mirrors Install-AutopilotMonitor.ps1 (v2.3) incl. the relax exemption for
+# Mirrors Install-AutopilotMonitor.ps1 (v2.7) incl. the relax exemption for
 # guards 2+3, triggered by "Windows Backup for Organizations" (OOBE InProgress)
-# or a positively identified Windows 365 Cloud PC, and the guard 4 (uptime)
-# exemption while the Cloud PC relax is active.
+# or a positively identified Windows 365 Cloud PC, the guard 4 (uptime)
+# exemption while the Cloud PC relax is active, and the agent check.
 
 param(
     [string]$AgentBinPath = 'C:\ProgramData\AutopilotMonitor\Agent',
@@ -29,20 +29,47 @@ function Write-Step {
     Write-Host "$prefix $Message"
 }
 
+# HKLM through the 64-bit view, as the installer reads it: a 32-bit host would read WOW6432Node.
 function Get-RegistryValueSafe {
     param(
-        [string]$Path,
+        [string]$SubKey,
         [string]$Name
     )
 
     try {
-        return (Get-ItemProperty -Path $Path -Name $Name -ErrorAction Stop).$Name
+        $hive = [Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine, [Microsoft.Win32.RegistryView]::Registry64)
+        try {
+            $key = $hive.OpenSubKey($SubKey)
+            if ($null -eq $key) { return $null }
+            try { return $key.GetValue($Name) } finally { $key.Close() }
+        } finally {
+            $hive.Close()
+        }
     }
     catch {
         return $null
     }
 }
 
+function Test-RegistryKeySafe {
+    param([string]$SubKey)
+
+    try {
+        $hive = [Microsoft.Win32.RegistryKey]::OpenBaseKey([Microsoft.Win32.RegistryHive]::LocalMachine, [Microsoft.Win32.RegistryView]::Registry64)
+        try {
+            $key = $hive.OpenSubKey($SubKey)
+            if ($null -eq $key) { return $false }
+            $key.Close()
+            return $true
+        } finally {
+            $hive.Close()
+        }
+    }
+    catch {
+        return $false
+    }
+}
+
 # Positive OOBE check via WinRT Windows.System.Profile.SystemSetupInfo.OutOfBoxExperienceState.
 # Requires Windows 10, version 1809 (10.0.17763.0). Older builds / errors -> $false (SKIP-safe).
 # Docs: https://learn.microsoft.com/en-us/uwp/api/windows.system.profile.systemsetupinfo
@@ -58,7 +85,7 @@ function Test-OobeInProgress {
 
 # Positive Windows 365 Cloud PC detection: two local markers, BOTH required (AND),
 # because each alone has look-alikes. Mirrors Test-IsCloudPc in the bootstrapper.
-$cloudPcRegMarker = Test-Path 'HKLM:\SOFTWARE\Microsoft\Windows365'
+$cloudPcRegMarker = Test-RegistryKeySafe -SubKey 'SOFTWARE\Microsoft\Windows365'
 $cloudPcSvcMarker = $null -ne (Get-Service -Name 'CloudManagedDesktopExtension' -ErrorAction SilentlyContinue)
 $isCloudPc = ($cloudPcRegMarker -and $cloudPcSvcMarker)
 
@@ -73,7 +100,7 @@ Write-Host '=== Autopilot Monitor Bootstrap Guard Test (Dry Run) ==='
 Write-Host ''
 
 # Guard 1: Agent was already deployed on this device (survives self-destruct)
-$deployed = Get-RegistryValueSafe -Path 'HKLM:\SOFTWARE\AutopilotMonitor' -Name 'Deployed'
+$deployed = Get-RegistryValueSafe -SubKey 'SOFTWARE\AutopilotMonitor' -Name 'Deployed'
 if ($deployed) {
     Write-Step -Status 'SKIP' -Message "Guard 1: Agent was previously deployed at '$deployed'."
     $wouldInstall = $false
@@ -146,7 +173,7 @@ if ($profilePaths.Count -gt 0 -and -not $oobeRelax) {
 }
 
 # Guard 3: LastLoggedOnUser (unless OOBE-relax holds)
-$lastLoggedOnUser = (Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI' -Name 'LastLoggedOnUser' -EA SilentlyContinue).LastLoggedOnUser
+$lastLoggedOnUser = Get-RegistryValueSafe -SubKey 'SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI' -Name 'LastLoggedOnUser'
 if ($lastLoggedOnUser -and $lastLoggedOnUser -notmatch 'defaultuser\d*' -and -not $oobeRelax) {
     Write-Step -Status 'SKIP' -Message "Guard 3: LastLoggedOnUser found ($lastLoggedOnUser). Device appears productive."
     $wouldInstall = $false
@@ -183,13 +210,19 @@ catch {
     Write-Step -Status 'WARN' -Message 'Guard 4: Could not determine LastBootUpTime / uptime.'
 }
 
-# Guard 5: Agent binary already present
+# Agent check: an installed agent (its executable or its task; the marker is guard 1) is
+# left as it is.
+$agentTask = Get-ScheduledTask -TaskName 'AutopilotMonitor-Agent' -ErrorAction SilentlyContinue
 if (Test-Path $AgentExePath) {
-    Write-Step -Status 'SKIP' -Message "Guard 5: Agent already installed at '$AgentExePath'."
+    Write-Step -Status 'SKIP' -Message "Agent check: Agent already installed at '$AgentExePath'."
     $wouldInstall = $false
     $reasons.Add("Agent binary already present: $AgentExePath")
+} elseif ($agentTask) {
+    Write-Step -Status 'SKIP' -Message "Agent check: Agent task 'AutopilotMonitor-Agent' exists."
+    $wouldInstall = $false
+    $reasons.Add("Agent task present: AutopilotMonitor-Agent")
 } else {
-    Write-Step -Status 'PASS' -Message "Guard 5: Agent binary not present at '$AgentExePath'."
+    Write-Step -Status 'PASS' -Message "Agent check: No agent binary at '$AgentExePath' and no agent task."
 }
 
 Write-Host ''

scripts/Bootstrap/TestData/Invoke-BootstrapDownload-1.0.ps1

@@ -0,0 +1,55 @@
+# Invoke-BootstrapDownload.ps1 - thin runner embedded in the Bootstrap MSI.
+#
+# The MSI is only a delivery vehicle (MDM LOB channel installs earlier than the IME
+# script/app batches during Autopilot Device Preparation). This runner downloads the
+# CURRENT Install-AutopilotMonitor.ps1 from the download endpoint and executes it, so
+# every piece of real bootstrap logic (guards, relax rules, agent download) stays
+# server-updatable without re-shipping the MSI.
+#
+# Fail-soft by design: the runner always exits 0 so a transient network failure never
+# marks the LOB install as failed; diagnostics go to bootstrap-msi.log.
+# ASCII only - no special characters in this file.
+
+$ErrorActionPreference = 'Stop'
+$baseDir = Join-Path $env:ProgramData 'AutopilotMonitor'
+$logDir  = Join-Path $baseDir 'Logs'
+New-Item -ItemType Directory -Force -Path $logDir | Out-Null
+$log = Join-Path $logDir 'bootstrap-msi.log'
+
+function Write-Log([string]$message) {
+    Add-Content -Path $log -Value ("[{0}] {1}" -f (Get-Date -Format 'yyyy-MM-dd HH:mm:ss'), $message)
+}
+
+try {
+    Write-Log "MSI bootstrap runner started (user=$env:USERNAME, pid=$PID)."
+
+    if (Test-Path 'HKLM:\SOFTWARE\AutopilotMonitor\Deployed') {
+        Write-Log 'Deployed marker present - skipping, another channel already installed the agent.'
+        exit 0
+    }
+
+    [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+    $url  = 'https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor.ps1'
+    $dest = Join-Path $baseDir 'Install-AutopilotMonitor.ps1'
+
+    for ($attempt = 1; $attempt -le 3; $attempt++) {
+        try {
+            Invoke-WebRequest -UseBasicParsing -Uri $url -OutFile $dest
+            break
+        } catch {
+            Write-Log "Download attempt $attempt failed: $_"
+            if ($attempt -eq 3) { throw }
+            Start-Sleep -Seconds 10
+        }
+    }
+
+    Write-Log "Bootstrap script downloaded to $dest - executing."
+    # PS 5.1 file redirection (*>>) writes UTF-16LE, which garbles a log otherwise
+    # written via Add-Content (ANSI). Route through Add-Content for one encoding.
+    & $dest *>&1 | ForEach-Object { $_.ToString() } | Add-Content -Path $log
+    Write-Log "Bootstrap script finished (exit code $LASTEXITCODE)."
+    exit 0
+} catch {
+    Write-Log ("MSI bootstrap runner failed: " + ($_ | Out-String))
+    exit 0
+}

scripts/Bootstrap/TestData/Start-AutopilotMonitor-1.2.ps1

@@ -0,0 +1,216 @@
+<#
+.SYNOPSIS
+    Stage 1 of the Autopilot Monitor bootstrap: fetches the current installer and runs it.
+
+.DESCRIPTION
+    This is the file an administrator assigns in Intune, and the same file the bootstrap MSI
+    installs and runs -- one implementation for both delivery channels; the MSI is only the
+    packaging. It carries no enrollment logic at all: it downloads the published
+    Install-AutopilotMonitor.ps1, proves that it was signed by Autopilot Monitor, and runs it
+    in this process.
+
+    Why two stages: the installer holds every guard, relax rule and download path, and those
+    change. Whoever assigns the installer directly has to replace their Intune copy each
+    time; whoever assigns this loader never does, because the part that changes lives on the
+    server. Assigning the installer directly stays supported and unchanged.
+
+    This file is deliberately boring. It is the one piece that cannot be fixed remotely, so
+    it does the least it can: download, verify, invoke, log.
+
+    Verification is by Authenticode publisher, not by hash. A hash oracle would have to be
+    fetched from the same host as the script itself, so it could not survive a compromise of
+    that host, while the expected publisher below travels with this file. It pins the
+    certificate SUBJECT and not a thumbprint, so a certificate renewal does not brick a
+    loader that is already deployed on devices.
+
+    Fail-soft: the loader always exits 0 and never throws into the caller. A device that
+    cannot reach the download endpoint is a device without monitoring, never a failed
+    enrollment step. Verification failures are the same: nothing runs, and the reason is in
+    the log. Refusing to execute unverified code as SYSTEM is the point of this file.
+
+    This file MUST remain pure ASCII (PS 5.1 reads BOM-less files as ANSI).
+
+.PARAMETER BootstrapUrl
+    Installer URL. Defaults to the published stable installer; the -Dev variant of this
+    loader is rendered from that default at publish time.
+
+.PARAMETER LogFileName
+    Log file inside the agent log directory. The MSI channel passes bootstrap-msi.log so the
+    delivery channel stays visible in a diagnostics package; the diag tooling keys on these
+    names, so do not rename them.
+
+.PARAMETER BootstrapArguments
+    Everything else is passed through to the installer unchanged, so any parameter the
+    installer accepts can be set here without this file knowing about it.
+
+.EXAMPLE
+    .\Start-AutopilotMonitor.ps1
+
+.EXAMPLE
+    .\Start-AutopilotMonitor.ps1 -MaxBootstrapWindowHours 24
+
+.NOTES
+    Author  : Oliver Kieselbach (autopilotmonitor.com)
+    Runtime : Windows PowerShell 5.1, SYSTEM context, during Autopilot enrollment
+
+.CHANGELOG
+    2026-09-08  v1.2  Log the signer CN instead of the full EV subject; the full subject is
+                      logged only when the publisher is why a script was rejected.
+    2026-09-08  v1.1  Also used by the bootstrap MSI, which replaced its own copy of this
+                      logic; -LogFileName keeps the channel visible in diagnostics.
+    2026-09-08  v1.0  Initial version: two-stage bootstrap, publisher-pinned verification.
+#>
+
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $false)]
+    [string]$BootstrapUrl = "https://download.autopilotmonitor.com/agent/Install-AutopilotMonitor.ps1",
+
+    [Parameter(Mandatory = $false)]
+    [ValidatePattern('^[A-Za-z0-9._-]+$')]
+    [string]$LogFileName = "bootstrap-loader.log",
+
+    [Parameter(Mandatory = $false, ValueFromRemainingArguments = $true)]
+    [string[]]$BootstrapArguments
+)
+
+# Script version (bump on meaningful changes; see .CHANGELOG above)
+$ScriptVersion = "1.2"
+
+# The publisher every downloaded stage-2 script must carry. A -like pattern on the subject,
+# NOT a thumbprint: certificates are renewed, deployed loaders are not.
+$ExpectedPublisher = "*O=glueckkanja AG*"
+
+$LoaderBasePath = "$env:ProgramData\AutopilotMonitor"
+$LoaderLogPath  = "$LoaderBasePath\Logs"
+$LogFile        = "$LoaderLogPath\$LogFileName"
+$BootstrapPath  = "$LoaderBasePath\Install-AutopilotMonitor.ps1"
+
+$DownloadAttempts = 3
+$RetryDelaySeconds = 10
+
+# Write-Host as well as the file: the Intune script output is what an administrator sees in
+# the portal, the file is what a support case reads.
+function Write-Log {
+    param([string]$Message)
+    $timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
+    $logMessage = "[$timestamp] $Message"
+    Write-Host $logMessage
+    Add-Content -Path $LogFile -Value $logMessage -ErrorAction SilentlyContinue
+}
+
+# True only when the file is signed, the signature validates against the machine's trust
+# chain, and the signer is us. Any error is a false -- an unreadable signature is an
+# unverified script.
+function Test-BootstrapSignature {
+    param([string]$Path)
+
+    try {
+        $sig = Get-AuthenticodeSignature -FilePath $Path -ErrorAction Stop
+    }
+    catch {
+        Write-Log "Signature check failed to run: $($_.Exception.Message)"
+        return $false
+    }
+
+    if ($null -eq $sig) {
+        Write-Log "Signature check returned nothing."
+        return $false
+    }
+
+    # The full subject of an EV certificate is a line of street address and registration
+    # numbers. The CN answers the only question the log has to answer; the full subject is
+    # logged when it is the reason for a rejection.
+    $subject = if ($sig.SignerCertificate) { $sig.SignerCertificate.Subject } else { "<unsigned>" }
+    $signer = if ($subject -match 'CN=([^,]+)') { $Matches[1] } else { $subject }
+    Write-Log "Signature status: $($sig.Status). Signer: $signer"
+
+    if ($sig.Status -ne 'Valid') {
+        Write-Log "REJECTED: expected signature status 'Valid'."
+        return $false
+    }
+    if ($subject -notlike $ExpectedPublisher) {
+        Write-Log "REJECTED: signer does not match the expected publisher. Full subject: $subject"
+        return $false
+    }
+
+    Write-Log "Signature accepted (thumbprint $($sig.SignerCertificate.Thumbprint))."
+    return $true
+}
+
+# Downloads the installer and returns $true once a downloaded copy passes verification.
+# Verification lives inside the retry loop on purpose: a truncated or proxy-mangled body
+# fails the signature check, and that is worth another attempt.
+function Get-VerifiedBootstrapScript {
+    param([string]$Url, [string]$Destination)
+
+    for ($attempt = 1; $attempt -le $DownloadAttempts; $attempt++) {
+        try {
+            Write-Log "Download attempt $attempt/$DownloadAttempts from $Url"
+            Invoke-WebRequest -Uri $Url -OutFile $Destination -UseBasicParsing -TimeoutSec 60 -ErrorAction Stop
+
+            if (Test-BootstrapSignature -Path $Destination) {
+                return $true
+            }
+        }
+        catch {
+            Write-Log "Download attempt $attempt failed: $($_.Exception.Message)"
+        }
+
+        if ($attempt -lt $DownloadAttempts) {
+            Start-Sleep -Seconds $RetryDelaySeconds
+        }
+    }
+
+    return $false
+}
+
+# Main flow. Only invoked when the script is run directly (see entry guard at the bottom),
+# so the Pester suite can dot-source this file without bootstrapping anything.
+function Start-BootstrapLoader {
+    New-Item -ItemType Directory -Force -Path $LoaderLogPath -ErrorAction SilentlyContinue | Out-Null
+
+    Write-Log "=== Autopilot Monitor bootstrap loader v$ScriptVersion started (user=$env:USERNAME, pid=$PID) ==="
+
+    # PS 5.1 on an OOBE device still defaults to TLS 1.0 for this process.
+    try {
+        [Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
+    }
+    catch {
+        Write-Log "INFO: could not raise the TLS protocol: $($_.Exception.Message)"
+    }
+
+    if (-not (Get-VerifiedBootstrapScript -Url $BootstrapUrl -Destination $BootstrapPath)) {
+        Write-Log "No verified installer available after $DownloadAttempts attempt(s). Nothing was executed."
+        return
+    }
+
+    Write-Log "Executing $BootstrapPath"
+
+    # Same process, so the execution policy this loader runs under applies to stage 2 as
+    # well and no second policy decision can strand the installer. Splatting an array of
+    # remaining arguments keeps this file free of any knowledge about the installer's
+    # parameters.
+    $arguments = @()
+    if ($BootstrapArguments) { $arguments = $BootstrapArguments }
+
+    try {
+        & $BootstrapPath @arguments
+        Write-Log "Installer finished (exit code $LASTEXITCODE)."
+    }
+    catch {
+        Write-Log "Installer threw: $($_.Exception.Message)"
+    }
+}
+
+# Entry guard: dot-sourcing (Pester) loads the functions without running the loader.
+if ($MyInvocation.InvocationName -ne '.') {
+    try {
+        Start-BootstrapLoader
+    }
+    catch {
+        # Nothing above should throw; if it does, it must not become a failed Intune script.
+        Write-Log "Loader failed: $($_.Exception.Message)"
+    }
+    exit 0
+}

scripts/Bootstrap/Uninstall-AutopilotMonitor.ps1

@@ -6,6 +6,7 @@
     This script removes all traces of the Autopilot Monitor agent:
     - Stops and removes the Scheduled Task
     - Deletes C:\ProgramData\AutopilotMonitor folder
+    - Deletes C:\ProgramData\AutopilotMonitor-Loader-* folders that a failed loader run kept
 
     Normally the agent self-destructs after enrollment completion.
     Use this script only for manual cleanup or troubleshooting.
@@ -16,7 +17,8 @@
 .NOTES
     - Requires Administrator privileges
     - Safe to run multiple times
-    - No Registry cleanup needed (agent doesn't use Registry)
+    - Keeps HKLM\SOFTWARE\AutopilotMonitor\Deployed: the bootstrap reads it and never
+      installs the agent on this device again
 #>
 
 [CmdletBinding()]
@@ -67,6 +69,17 @@ catch {
     Write-Host "  [INFO] You may need to manually delete: $AgentBasePath" -ForegroundColor Yellow
 }
 
+# Delete loader run folders kept by failed runs
+foreach ($runFolder in @(Get-ChildItem -Path $env:ProgramData -Directory -Filter 'AutopilotMonitor-Loader-*' -ErrorAction SilentlyContinue)) {
+    try {
+        Remove-Item -LiteralPath $runFolder.FullName -Recurse -Force -ErrorAction Stop
+        Write-Host "  [OK] Loader run folder deleted: $($runFolder.FullName)" -ForegroundColor Green
+    }
+    catch {
+        Write-Host "  [FAIL] Error deleting $($runFolder.FullName): $($_.Exception.Message)" -ForegroundColor Red
+    }
+}
+
 Write-Host ""
 Write-Host "===== Cleanup Completed =====" -ForegroundColor Cyan
 Write-Host "Autopilot Monitor agent has been removed from this device." -ForegroundColor Green

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Bootstrap/BootstrapContractTests.cs

@@ -0,0 +1,171 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Xml.Linq;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Runtime;
+using AutopilotMonitor.Agent.V2.Core.Security;
+using AutopilotMonitor.Agent.V2.Core.Tests.Harness;
+using AutopilotMonitor.Shared;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Bootstrap
+{
+    /// <summary>
+    /// What the bootstrap scripts and the agent must agree on: the names by which the installer
+    /// recognizes an installed agent, the folders and log files, and the log lines the agent reads
+    /// back as its provenance. Every script value is read from the script's own text, so a rename
+    /// on either side fails here. The bootstrap script gates run this class on every change to
+    /// the scripts.
+    /// </summary>
+    [Trait("Category", "BootstrapContract")]
+    public sealed class BootstrapContractTests : IDisposable
+    {
+        private static readonly string BootstrapDir = Path.Combine(RepoPaths.Root(), "scripts", "Bootstrap");
+        private static readonly string Installer = File.ReadAllText(Path.Combine(BootstrapDir, "Install-AutopilotMonitor.ps1"));
+        private static readonly string Loader = File.ReadAllText(Path.Combine(BootstrapDir, "Start-AutopilotMonitor.ps1"));
+        private static readonly string OobeScript = File.ReadAllText(Path.Combine(
+            RepoPaths.Root(), "src", "Backend", "AutopilotMonitor.Functions.Tests", "TestData", "oobe-bootstrap-golden.ps1"));
+        private static readonly string Wxs = File.ReadAllText(Path.Combine(
+            RepoPaths.Root(), "src", "Agent", "AutopilotMonitor.BootstrapMsi", "Package.wxs"));
+
+        private readonly string _logs = Path.Combine(Path.GetTempPath(), "apm-bootstrap-contract-" + Guid.NewGuid().ToString("N"));
+
+        public BootstrapContractTests() => Directory.CreateDirectory(_logs);
+
+        public void Dispose()
+        {
+            try { Directory.Delete(_logs, recursive: true); } catch { /* best effort */ }
+        }
+
+        /// <summary>The value of the one top-level <c>$Name = "value"</c> line of a script.</summary>
+        private static string Assignment(string script, string name)
+        {
+            var matches = Regex.Matches(script, @"(?m)^\$" + name + @"[ \t]*=[ \t]*""([^""]*)""[ \t]*\r?$");
+            Assert.True(matches.Count == 1, $"expected exactly one top-level ${name} line, found {matches.Count}");
+            return matches[0].Groups[1].Value;
+        }
+
+        private static string ScriptPath(string agentPath) => agentPath.Replace("%ProgramData%", "$env:ProgramData");
+
+        private static string AgentSubdirectory() =>
+            (string)typeof(AutopilotMonitor.Agent.V2.Program)
+                .GetField("DefaultAgentSubdirectory", BindingFlags.NonPublic | BindingFlags.Static)
+                .GetRawConstantValue();
+
+        private void WriteLog(string name, string line) =>
+            File.WriteAllText(Path.Combine(_logs, name), line + "\r\n", Encoding.ASCII);
+
+        [Fact]
+        public void The_installer_recognizes_an_agent_by_the_names_the_agent_uses()
+        {
+            Assert.Equal(DeploymentMarker.RegistryKeyPath, Assignment(Installer, "DeploymentMarkerKey"));
+            Assert.Equal(DeploymentMarker.RegistryValueName, Assignment(Installer, "DeploymentMarkerValue"));
+            Assert.Equal(Constants.ScheduledTaskName, Assignment(Installer, "AgentTaskName"));
+            Assert.Equal(typeof(AutopilotMonitor.Agent.V2.Program).Assembly.GetName().Name + ".exe", Assignment(Installer, "AgentExeName"));
+        }
+
+        [Fact]
+        public void The_installer_works_in_the_folders_the_agent_uses()
+        {
+            var basePath = Assignment(Installer, "AgentBasePath");
+
+            Assert.Equal(ScriptPath(Constants.AgentDataDirectory), basePath);
+            Assert.Equal(ScriptPath(Constants.LogDirectory), Assignment(Installer, "AgentLogPath").Replace("$AgentBasePath", basePath));
+            Assert.Equal(basePath + "\\" + AgentSubdirectory(), Assignment(Installer, "AgentBinPath").Replace("$AgentBasePath", basePath));
+        }
+
+        [Fact]
+        public void Every_bootstrap_logs_under_the_name_the_agent_reads()
+        {
+            Assert.Equal("$AgentLogPath\\" + BootstrapProvenanceReader.InstallerLogName, Assignment(Installer, "LogFile"));
+            Assert.Matches(@"\[string\]\$LogFileName = """ + Regex.Escape(BootstrapProvenanceReader.LoaderLogName) + @"""", Loader);
+            Assert.Contains("$LogFile          = \"$AgentLogPath\\" + BootstrapProvenanceReader.OobeLogName + "\"", OobeScript);
+
+            Assert.Contains("-LogFileName " + BootstrapProvenanceReader.MsiLoaderLogName, Wxs);
+        }
+
+        // The bootstrap MSI installs its loader copy where the installer removes it, starts
+        // PowerShell in System32, and runs only bytes it has checked against the publisher pin
+        // the loader applies to the installer. Windows Installer formats the command, so every
+        // bracket and brace is escaped and the only property references are the two paths.
+        [Fact]
+        public void The_msi_puts_the_loader_copy_where_the_installer_removes_it_and_runs_only_what_it_checked()
+        {
+            XNamespace ns = "http://wixtoolset.org/schemas/v4/wxs";
+            var package = XDocument.Parse(Wxs).Root.Element(ns + "Package");
+            Assert.Equal("1fbe5515-d346-445c-b8b8-14ee79f97522", (string)package.Attribute("UpgradeCode"));
+
+            var root = package.Elements(ns + "StandardDirectory").Single();
+            Assert.Equal("CommonAppDataFolder", (string)root.Attribute("Id"));
+            var chain = root.Descendants(ns + "Directory").Select(d => (string)d.Attribute("Name")).ToArray();
+            Assert.Equal("INSTALLFOLDER", (string)root.Descendants(ns + "Directory").Last().Attribute("Id"));
+            var transport = Assignment(Installer, "MsiTransportPath").Replace("$AgentBasePath", Assignment(Installer, "AgentBasePath"));
+            Assert.Equal("$env:ProgramData\\" + string.Join("\\", chain), transport);
+
+            var action = package.Elements(ns + "CustomAction").Single(a => (string)a.Attribute("Id") == "RunBootstrap");
+            Assert.Equal("System64Folder", (string)action.Attribute("Directory"));
+            Assert.Equal("deferred", (string)action.Attribute("Execute"));
+            Assert.Equal("no", (string)action.Attribute("Impersonate"));
+            Assert.Equal("ignore", (string)action.Attribute("Return"));
+
+            var exeCommand = (string)action.Attribute("ExeCommand");
+            var command = exeCommand.Substring(exeCommand.IndexOf(" -Command ", StringComparison.Ordinal));
+            Assert.Contains("-NonInteractive", exeCommand);
+            Assert.Contains("[\\[]System.IO.File[\\]]::ReadAllBytes('[INSTALLFOLDER]Start-AutopilotMonitor.ps1')", command);
+            Assert.Contains("Get-AuthenticodeSignature -Content $b -SourcePathOrExtension '.ps1'", command);
+            Assert.Contains("$h -eq '$(var.LoaderSha256)' -and $s.Status -eq 'Valid' -and $s.SignerCertificate.Subject -like '" + Assignment(Loader, "ExpectedPublisher") + "'", command);
+            // The hash is baked in by the build from the loader it embeds; a package built without it must not exist.
+            Assert.Contains("<?ifndef var.LoaderSha256 ?>", Wxs);
+            var workflow = File.ReadAllText(Path.Combine(RepoPaths.Root(), ".github", "workflows", "build-msi.yml"));
+            Assert.Contains("wix build Package.wxs -arch x64 -d LoaderSha256=$loaderSha256", workflow);
+            Assert.Contains("Get-FileHash -LiteralPath $env:RUNNER_SCRIPT -Algorithm SHA256", workflow);
+            Assert.Contains("[\\[]scriptblock[\\]]::Create([\\[]System.Text.Encoding[\\]]::UTF8.GetString($b))", command);
+            Assert.DoesNotContain("-File", command);
+            // Without the [\x] escapes, the only bracket left is the one property reference.
+            var unescaped = Regex.Replace(command, @"\[\\.\]", "");
+            Assert.DoesNotMatch(@"[{}\[\]]", unescaped.Replace("[INSTALLFOLDER]", ""));
+            Assert.Equal(new[] { "[INSTALLFOLDER]" }, Regex.Matches(command, @"\[[A-Za-z0-9_.]+\]").Cast<Match>().Select(m => m.Value).Distinct().ToArray());
+
+            var custom = package.Element(ns + "InstallExecuteSequence").Elements(ns + "Custom").Single();
+            Assert.Equal("RunBootstrap", (string)custom.Attribute("Action"));
+            Assert.Equal("NOT Installed", (string)custom.Attribute("Condition"));
+        }
+
+        [Fact]
+        public void The_agent_reads_the_versions_the_current_scripts_write()
+        {
+            var installerVersion = Assignment(Installer, "ScriptVersion");
+            var loaderVersion = Assignment(Loader, "ScriptVersion");
+            Assert.Contains("Write-Log \"Bootstrap script version: v$ScriptVersion\"", Installer);
+            Assert.Contains("Write-Log \"=== Autopilot Monitor bootstrap loader v$ScriptVersion started (user=$env:USERNAME, pid=$PID) ===\"", Loader);
+
+            WriteLog(BootstrapProvenanceReader.InstallerLogName, $"[2026-10-22 10:00:01] Bootstrap script version: v{installerVersion}");
+            WriteLog(BootstrapProvenanceReader.LoaderLogName, $"[2026-10-22 10:00:00] === Autopilot Monitor bootstrap loader v{loaderVersion} started (user=SYSTEM, pid=4242) ===");
+
+            var provenance = BootstrapProvenanceReader.Read(_logs);
+
+            Assert.Equal(installerVersion, provenance.ScriptVersion);
+            Assert.Equal("loader", provenance.LoaderLog);
+            Assert.Equal(loaderVersion, provenance.LoaderVersion);
+        }
+
+        // The installer carries only the start line over from loaders before 1.3, rebuilt from a
+        // pattern; the agent has to read that line as the loader's version.
+        [Fact]
+        public void The_agent_reads_the_start_line_the_installer_carries_over_from_an_older_loader()
+        {
+            const string suffix = " (carried over by the bootstrapper) ===`r`n";
+            Assert.Contains("$starts[$starts.Count - 1].Value + \"" + suffix + "\"", Installer);
+
+            WriteLog(BootstrapProvenanceReader.MsiLoaderLogName, "[2026-10-22 10:00:00] === Autopilot Monitor bootstrap loader v1.2 started (carried over by the bootstrapper) ===");
+
+            var provenance = BootstrapProvenanceReader.Read(_logs);
+
+            Assert.Equal("msi", provenance.LoaderLog);
+            Assert.Equal("1.2", provenance.LoaderVersion);
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Configuration/RemoteConfigMergerCompletenessTests.cs

@@ -50,6 +50,7 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             nameof(AgentConfigResponse.MaxBatchSize),
             nameof(AgentConfigResponse.MaxAuthFailures),
             nameof(AgentConfigResponse.AuthFailureTimeoutMinutes),
+            nameof(AgentConfigResponse.InterceptedRegistrationRetryBoots),
             // Merge reads two Collectors knobs (AgentMaxLifetimeMinutes, HelloWaitTimeoutSeconds);
             // the remaining CollectorConfiguration flags flow untouched to DefaultComponentFactory.
             nameof(AgentConfigResponse.Collectors),

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Configuration/RemoteConfigMergerTests.cs

@@ -55,6 +55,7 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             UnrestrictedMode = true,
             MaxAuthFailures = 7,
             AuthFailureTimeoutMinutes = 15,
+            InterceptedRegistrationRetryBoots = 2,
             EnableImeMatchLog = true,
             Collectors = new CollectorConfiguration
             {
@@ -98,6 +99,7 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             Assert.Equal(45, agent.HelloWaitTimeoutSeconds);
             Assert.Equal(7, agent.MaxAuthFailures);
             Assert.Equal(15, agent.AuthFailureTimeoutMinutes);
+            Assert.Equal(2, agent.InterceptedRegistrationRetryBoots);
 
             Assert.NotNull(result);
             Assert.True(result.UnrestrictedModeChanged);
@@ -468,6 +470,50 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             Assert.Equal(0, agent.AgentMaxLifetimeMinutes);
         }
 
+        // ============================================================= Intercepted-registration buffer
+
+        [Theory]
+        [InlineData(0)] // clean up at the first intercepted registration
+        [InlineData(3)]
+        public void Merge_copies_intercepted_registration_retry_boots(int remoteValue)
+        {
+            var agent = NewAgentConfig();
+            var remote = FullRemote();
+            remote.InterceptedRegistrationRetryBoots = remoteValue;
+
+            RemoteConfigMerger.Merge(agent, remote);
+
+            Assert.Equal(remoteValue, agent.InterceptedRegistrationRetryBoots);
+        }
+
+        [Fact]
+        public void Merge_keeps_the_agent_default_when_the_backend_sends_no_intercepted_registration_retry_boots()
+        {
+            var agent = NewAgentConfig();
+            var remote = FullRemote();
+            remote.InterceptedRegistrationRetryBoots = null; // backend that predates the field
+
+            RemoteConfigMerger.Merge(agent, remote);
+
+            Assert.Equal(1, agent.InterceptedRegistrationRetryBoots);
+        }
+
+        [Theory]
+        [InlineData(-1, 0)]
+        [InlineData(int.MinValue, 0)]
+        [InlineData(6, 5)]
+        [InlineData(int.MaxValue, 5)]
+        public void Merge_clamps_intercepted_registration_retry_boots_to_zero_through_five(int remoteValue, int expected)
+        {
+            var agent = NewAgentConfig();
+            var remote = FullRemote();
+            remote.InterceptedRegistrationRetryBoots = remoteValue;
+
+            RemoteConfigMerger.Merge(agent, remote);
+
+            Assert.Equal(expected, agent.InterceptedRegistrationRetryBoots);
+        }
+
         // ============================================================= Guard
 
         [Fact]

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Configuration/RemoteConfigServiceCacheHardeningTests.cs

@@ -214,6 +214,23 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             Assert.Null(loaded.LatestAgentSha256);
         }
 
+        [Theory]
+        [InlineData(0)]
+        [InlineData(3)]
+        [InlineData(null)] // backend that predates the field — the agent keeps its default
+        public void RoundTrip_preserves_intercepted_registration_retry_boots(int? value)
+        {
+            // An intercepted start gets no live config, so the registration buffer it decides on
+            // is the cached value: it must survive the write + read strip untouched.
+            var probe = NewProbe();
+
+            probe.DoCache(new AgentConfigResponse { InterceptedRegistrationRetryBoots = value });
+            var loaded = probe.DoLoad();
+
+            Assert.NotNull(loaded);
+            Assert.Equal(value, loaded.InterceptedRegistrationRetryBoots);
+        }
+
         // ── Helpers ─────────────────────────────────────────────────────────
 
         private CacheProbe NewProbe()

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Configuration/RemoteConfigServiceRetryTests.cs

@@ -7,6 +7,7 @@ using AutopilotMonitor.Agent.V2.Core.Logging;
 using AutopilotMonitor.Agent.V2.Core.Monitoring.Transport;
 using AutopilotMonitor.Agent.V2.Core.Security;
 using AutopilotMonitor.Agent.V2.Core.Tests.Harness;
+using AutopilotMonitor.Agent.V2.Core.Tests.Transport;
 using AutopilotMonitor.Shared.Models;
 using Xunit;
 
@@ -101,6 +102,28 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             Assert.Equal(401, svc.LastFetchAuthStatusCode);
         }
 
+        [Fact]
+        public async Task FetchConfig_InterceptedAnswer_FallsBack_WithoutCounting_AndReportsOnce()
+        {
+            // A 403 something on the network path answered (TLS inspection): same fallback as an
+            // auth failure, but the tracker does not count it — it sends ClientCertificateNotReceived.
+            var distress = new FakeDistressReporter();
+            var tracker = new AuthFailureTracker(maxFailures: 5, timeoutMinutes: 0,
+                AutopilotMonitor.DecisionCore.Engine.SystemClock.Instance, _logger, distress);
+            var svc = NewService(BackendBehaviour.AlwaysIntercepted403, tracker);
+
+            var result = await svc.FetchConfigAsync(retryOnTransientErrors: true);
+
+            Assert.NotNull(result);
+            Assert.Equal(RemoteConfigFetchOutcome.UsedDefaults, svc.LastFetchOutcome);
+            Assert.Equal(1, svc.LastFetchAttempts);
+            Assert.Equal(403, svc.LastFetchAuthStatusCode);
+            Assert.Equal(0, tracker.ConsecutiveFailures);
+            var call = Assert.Single(distress.Calls);
+            Assert.Equal(DistressErrorType.ClientCertificateNotReceived, call.ErrorType);
+            Assert.StartsWith("agent/config http 403 client_certificate_required", call.Message);
+        }
+
         [Fact]
         public async Task FetchConfig_RetryDisabled_OneAttemptOnly()
         {
@@ -252,10 +275,11 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             /// <summary>All 4 initial attempts fail; the NEXT call (the recovery fetch) succeeds.</summary>
             FailAllThenSucceed,
             AlwaysAuthFailure401,
+            AlwaysIntercepted403,
             AlwaysReturnNull,
         }
 
-        private FakeRemoteConfigService NewService(BackendBehaviour behaviour)
+        private FakeRemoteConfigService NewService(BackendBehaviour behaviour, AuthFailureTracker? tracker = null)
         {
             // Pass a throwaway BackendApiClient — the fake overrides CallBackendAsync
             // before it ever hits the wire.
@@ -269,7 +293,7 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
                 bootstrapToken: null,
                 agentVersion: "0.0.0",
                 logger: _logger);
-            return new FakeRemoteConfigService(apiClient, _logger, behaviour);
+            return new FakeRemoteConfigService(apiClient, _logger, behaviour, tracker);
         }
 
         private sealed class FakeRemoteConfigService : RemoteConfigService
@@ -277,8 +301,8 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
             private readonly BackendBehaviour _behaviour;
             private int _calls;
 
-            public FakeRemoteConfigService(BackendApiClient apiClient, AgentLogger logger, BackendBehaviour behaviour)
-                : base(apiClient, "00000000-0000-0000-0000-000000000001", logger)
+            public FakeRemoteConfigService(BackendApiClient apiClient, AgentLogger logger, BackendBehaviour behaviour, AuthFailureTracker? tracker)
+                : base(apiClient, "00000000-0000-0000-0000-000000000001", logger, authFailureTracker: tracker)
             {
                 _behaviour = behaviour;
             }
@@ -305,6 +329,9 @@ namespace AutopilotMonitor.Agent.V2.Core.Tests.Configuration
                         throw new HttpRequestException("simulated network failure");
                     case BackendBehaviour.AlwaysAuthFailure401:
                         throw new BackendAuthException("Unauthorized", 401);
+                    case BackendBehaviour.AlwaysIntercepted403:
+                        throw new BackendAuthException("The device certificate did not reach the backend.", 403,
+                            classification: InterceptionFixtures.CertificateRequired());
                     case BackendBehaviour.AlwaysReturnNull:
                         return Task.FromResult<AgentConfigResponse>(null!);
                     default:

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Harness/ElevatedFactAttribute.cs

@@ -0,0 +1,21 @@
+using System.Security.Principal;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Harness
+{
+    /// <summary>
+    /// A fact that needs an elevated process, such as making the Administrators group the owner
+    /// of a folder. Skipped in a non-elevated local run; the CI runners are elevated.
+    /// </summary>
+    public sealed class ElevatedFactAttribute : FactAttribute
+    {
+        public ElevatedFactAttribute()
+        {
+            using (var identity = WindowsIdentity.GetCurrent())
+            {
+                if (!new WindowsPrincipal(identity).IsInRole(WindowsBuiltInRole.Administrator))
+                    Skip = "needs an elevated process (assigning Administrators as the folder owner)";
+            }
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Harness/FakeDistressReporter.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Transport;
+using AutopilotMonitor.Shared.Models;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Harness
+{
+    /// <summary>
+    /// Records every distress dispatch instead of sending it. The real anti-flood rules of
+    /// <see cref="DistressReporter"/> are bypassed on purpose: tests assert what the caller dispatched.
+    /// </summary>
+    internal sealed class FakeDistressReporter : DistressReporter
+    {
+        public sealed class Call
+        {
+            public DistressErrorType ErrorType { get; set; }
+            public string Message { get; set; } = default!;
+            public int? HttpStatusCode { get; set; }
+            public string? TpmVersion { get; set; }
+            public DistressDeviceContext? Context { get; set; }
+        }
+
+        public List<Call> Calls { get; } = new List<Call>();
+
+        /// <summary>
+        /// The send each dispatch returns; null = already completed. Lets a test keep a send in
+        /// flight to prove a caller waits for it (or stops waiting at its bound).
+        /// </summary>
+        public Func<Task>? Send { get; set; }
+
+        public FakeDistressReporter()
+            : base(baseUrl: "https://example.test", tenantId: "t", manufacturer: "m", model: "d", serialNumber: "s", agentVersion: "0.0.0", logger: null!)
+        {
+        }
+
+        public override Task TrySendAsync(DistressErrorType errorType, string message, int? httpStatusCode = null, DistressDetail? detail = null)
+        {
+            Calls.Add(new Call { ErrorType = errorType, Message = message, HttpStatusCode = httpStatusCode, TpmVersion = detail?.TpmVersion, Context = detail?.Context });
+            return Send?.Invoke() ?? Task.CompletedTask;
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Monitoring/EspPhaseSnapshotTests.cs

@@ -0,0 +1,82 @@
+using System.Collections.Generic;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Enrollment.SystemSignals;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Monitoring
+{
+    /// <summary>
+    /// The ESP phase a report names, derived from the three ESP registry values. Both value shapes
+    /// Windows writes are covered: flat status texts (older builds) and nested subcategory objects.
+    /// </summary>
+    public sealed class EspPhaseSnapshotTests
+    {
+        private const string DoneFlag = "{\"categorySucceeded\":true}";
+        private const string FailedFlag = "{\"categorySucceeded\":false}";
+        private const string NestedRunning =
+            "{\"SecurityPoliciesSubcategory\":{\"subcategoryState\":\"succeeded\",\"subcategoryStatusText\":\"Complete\"}," +
+            "\"AppsSubcategory\":{\"subcategoryState\":\"inProgress\",\"subcategoryStatusText\":\"Installing (1 of 3)\"}}";
+        private const string NestedAllDoneNoFlag =
+            "{\"SecurityPoliciesSubcategory\":{\"subcategoryState\":\"succeeded\"},\"AppsSubcategory\":{\"subcategoryState\":\"notRequired\"}}";
+        private const string NestedFailedNoFlag =
+            "{\"SecurityPoliciesSubcategory\":{\"subcategoryState\":\"succeeded\"},\"AppsSubcategory\":{\"subcategoryState\":\"failed\"}}";
+        private const string FlatRunning = "{\"CertificatesSubcategory\":\"Certificates (0 of 1 applied)\",\"AppsSubcategory\":\"Identifying\"}";
+
+        private static string Derive(string? preparation, string? deviceSetup, string? accountSetup)
+            => EspPhaseSnapshot.Derive(new List<string> { preparation!, deviceSetup!, accountSetup! });
+
+        [Fact]
+        public void No_value_is_none()
+        {
+            Assert.Equal("none", Derive(null, null, null));
+        }
+
+        [Fact]
+        public void Running_category_names_its_phase()
+        {
+            Assert.Equal("device_preparation", Derive(NestedRunning, null, null));
+            Assert.Equal("device_setup", Derive(DoneFlag, NestedRunning, null));
+            Assert.Equal("account_setup", Derive(DoneFlag, DoneFlag, NestedRunning));
+        }
+
+        [Fact]
+        public void Flat_status_texts_are_read_too()
+        {
+            Assert.Equal("device_setup", Derive(DoneFlag, FlatRunning, null));
+        }
+
+        [Fact]
+        public void Done_categories_name_the_last_one_reached()
+        {
+            Assert.Equal("device_preparation_done", Derive(DoneFlag, null, null));
+            Assert.Equal("device_setup_done", Derive(DoneFlag, DoneFlag, null));
+            Assert.Equal("esp_done", Derive(DoneFlag, DoneFlag, DoneFlag));
+        }
+
+        [Fact]
+        public void All_subcategories_done_counts_as_done_without_the_flag()
+        {
+            // Some builds never set categorySucceeded although every subcategory finished.
+            Assert.Equal("esp_done", Derive(DoneFlag, NestedAllDoneNoFlag, NestedAllDoneNoFlag));
+        }
+
+        [Fact]
+        public void A_failure_wins_over_everything_after_it()
+        {
+            Assert.Equal("device_setup_failed", Derive(DoneFlag, FailedFlag, NestedRunning));
+            Assert.Equal("account_setup_failed", Derive(DoneFlag, DoneFlag, NestedFailedNoFlag));
+        }
+
+        [Fact]
+        public void Unparseable_value_counts_as_running()
+        {
+            Assert.Equal("device_setup", Derive(DoneFlag, "{not json", null));
+        }
+
+        [Fact]
+        public void Read_on_this_machine_returns_a_known_token()
+        {
+            var phase = EspPhaseSnapshot.Read();
+            Assert.Matches("^[a-z_]+$", phase);
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Monitoring/NetworkFingerprintTests.cs

@@ -0,0 +1,85 @@
+using System.Linq;
+using AutopilotMonitor.Agent.V2.Core.Monitoring;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Telemetry.Periodic;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Monitoring
+{
+    /// <summary>
+    /// The local network fingerprint a failed registration is stored with: SHA-256 over the
+    /// connection type and gateway <see cref="NetworkChangeDetector"/> captures, cut to 16 hex
+    /// characters; unknown (null) whenever either input is missing. Gateways are documentation
+    /// addresses (RFC 5737).
+    /// </summary>
+    public sealed class NetworkFingerprintTests
+    {
+        private static NetworkChangeDetector.NetworkStateSnapshot State(string? connectionType, string? gateway, bool hasNetwork = true) =>
+            new NetworkChangeDetector.NetworkStateSnapshot
+            {
+                HasNetwork = hasNetwork,
+                ConnectionType = connectionType,
+                Gateway = gateway,
+            };
+
+        [Fact]
+        public void Same_connection_type_and_gateway_give_the_same_short_hex_fingerprint()
+        {
+            var first = NetworkFingerprint.Of(State("WiFi", "192.0.2.1"));
+            var second = NetworkFingerprint.Of(State("WiFi", "192.0.2.1"));
+
+            Assert.Equal(first, second);
+            Assert.Equal(NetworkFingerprint.Length, first!.Length);
+            Assert.True(first.All(c => (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')), first);
+        }
+
+        [Theory]
+        [InlineData("WiFi", "198.51.100.1")] // another gateway
+        [InlineData("Ethernet", "192.0.2.1")] // another connection type
+        public void Another_gateway_or_connection_type_is_another_network(string connectionType, string gateway)
+        {
+            Assert.NotEqual(
+                NetworkFingerprint.Of(State("WiFi", "192.0.2.1")),
+                NetworkFingerprint.Of(State(connectionType, gateway)));
+        }
+
+        [Fact]
+        public void Unknown_network_has_no_fingerprint()
+        {
+            Assert.Null(NetworkFingerprint.Of(null));
+            Assert.Null(NetworkFingerprint.Of(State("WiFi", "192.0.2.1", hasNetwork: false)));
+            Assert.Null(NetworkFingerprint.Of(State("WiFi", null)));
+            Assert.Null(NetworkFingerprint.Of(State(null, "192.0.2.1")));
+        }
+
+        [Theory]
+        [InlineData("aaaa", "aaaa", false)]
+        [InlineData("aaaa", "bbbb", true)]
+        public void Differs_compares_known_fingerprints(string before, string after, bool expected)
+        {
+            Assert.Equal(expected, NetworkFingerprint.Differs(before, after));
+        }
+
+        [Theory]
+        [InlineData(null, "aaaa")]
+        [InlineData("aaaa", null)]
+        [InlineData(null, null)]
+        public void Differs_is_unknown_when_either_side_is(string? before, string? after)
+        {
+            Assert.Null(NetworkFingerprint.Differs(before, after));
+        }
+
+        [Fact]
+        public void TryCapture_reads_this_machine_without_throwing()
+        {
+            // Machine-dependent: either no active interface (null) or a well-formed fingerprint
+            // that matches the detector's own capture.
+            var captured = NetworkFingerprint.TryCapture();
+
+            if (captured != null)
+            {
+                Assert.Equal(NetworkFingerprint.Length, captured.Length);
+                Assert.Equal(NetworkFingerprint.Of(NetworkChangeDetector.CaptureInterfaceState()), captured);
+            }
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Monitoring/Runtime/BootstrapProvenanceReaderTests.cs

@@ -0,0 +1,199 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Runtime;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Monitoring.Runtime
+{
+    /// <summary>
+    /// The bootstrap provenance in <c>agent_started</c>. Fixture lines are the scripts' real
+    /// formats: installer <c>[ts] Bootstrap script version: vX.Y</c>
+    /// (Install-AutopilotMonitor.ps1), loader <c>[ts] === Autopilot Monitor bootstrap loader vX.Y
+    /// started (user=..., pid=...) ===</c> (Start-AutopilotMonitor.ps1), the MSI's downloader before
+    /// the loader <c>[ts] MSI bootstrap runner started (user=..., pid=...).</c>.
+    /// </summary>
+    public sealed class BootstrapProvenanceReaderTests : IDisposable
+    {
+        private readonly string _dir = Path.Combine(Path.GetTempPath(), "apm-provenance-" + Guid.NewGuid().ToString("N"));
+
+        public BootstrapProvenanceReaderTests() => Directory.CreateDirectory(_dir);
+
+        public void Dispose()
+        {
+            try { Directory.Delete(_dir, recursive: true); } catch { /* best effort */ }
+        }
+
+        private void Write(string name, params string[] lines) =>
+            File.WriteAllText(Path.Combine(_dir, name), string.Join("\r\n", lines) + "\r\n", Encoding.ASCII);
+
+        private static string InstallerRun(string version) => $"[2026-10-13 09:00:00] Bootstrap script version: v{version}";
+
+        private static string LoaderRun(string version) =>
+            $"[2026-10-13 08:59:58] === Autopilot Monitor bootstrap loader v{version} started (user=SECRETUSER, pid=4242) ===";
+
+        [Fact]
+        public void Loader_path_reports_installer_and_loader_versions()
+        {
+            Write(BootstrapProvenanceReader.LoaderLogName, LoaderRun("1.2"), "[2026-10-13 08:59:59] Installer signature verified");
+            Write(BootstrapProvenanceReader.InstallerLogName, "[2026-10-13 09:00:00] ===== Autopilot Monitor Bootstrap Started =====", InstallerRun("2.5"));
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.True(p.ScriptLogPresent);
+            Assert.Equal("2.5", p.ScriptVersion);
+            Assert.Equal("loader", p.LoaderLog);
+            Assert.Equal("1.2", p.LoaderVersion);
+            Assert.False(p.OobeLogPresent);
+        }
+
+        [Fact]
+        public void The_last_run_wins_when_the_log_grew_over_several_runs()
+        {
+            Write(BootstrapProvenanceReader.InstallerLogName, InstallerRun("2.3"), "x", InstallerRun("2.4"), "y", InstallerRun("2.5"), "z");
+
+            Assert.Equal("2.5", BootstrapProvenanceReader.Read(_dir).ScriptVersion);
+        }
+
+        [Fact]
+        public void A_directly_assigned_installer_has_no_loader_log()
+        {
+            Write(BootstrapProvenanceReader.InstallerLogName, InstallerRun("2.4"));
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.Equal("2.4", p.ScriptVersion);
+            Assert.Null(p.LoaderLog);
+            Assert.Null(p.LoaderVersion);
+        }
+
+        [Fact]
+        public void An_installer_from_before_the_version_line_is_present_but_without_version()
+        {
+            Write(BootstrapProvenanceReader.InstallerLogName, "[2026-03-01 09:00:00] ===== Autopilot Monitor Bootstrap Started =====");
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.True(p.ScriptLogPresent);
+            Assert.Null(p.ScriptVersion);
+        }
+
+        [Fact]
+        public void An_installer_from_before_the_log_rename_is_read_under_its_old_name()
+        {
+            Write(BootstrapProvenanceReader.LegacyInstallerLogName, InstallerRun("2.3"));
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.True(p.ScriptLogPresent);
+            Assert.Equal("2.3", p.ScriptVersion);
+        }
+
+        [Fact]
+        public void With_both_installer_logs_the_most_recently_written_one_counts()
+        {
+            Write(BootstrapProvenanceReader.InstallerLogName, InstallerRun("2.6"));
+            Write(BootstrapProvenanceReader.LegacyInstallerLogName, InstallerRun("2.3"));
+            File.SetLastWriteTimeUtc(Path.Combine(_dir, BootstrapProvenanceReader.InstallerLogName), DateTime.UtcNow.AddDays(-3));
+            File.SetLastWriteTimeUtc(Path.Combine(_dir, BootstrapProvenanceReader.LegacyInstallerLogName), DateTime.UtcNow.AddMinutes(-1));
+
+            Assert.Equal("2.3", BootstrapProvenanceReader.Read(_dir).ScriptVersion);
+        }
+
+        [Fact]
+        public void The_msi_downloader_from_before_the_loader_counts_as_msi_without_version()
+        {
+            Write(BootstrapProvenanceReader.LegacyMsiLoaderLogName, "[2026-08-01 09:00:00] MSI bootstrap runner started (user=SECRETUSER, pid=4242).");
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.Equal("msi", p.LoaderLog);
+            Assert.Null(p.LoaderVersion);
+        }
+
+        [Fact]
+        public void The_msi_loader_log_is_told_apart_from_the_intune_loader()
+        {
+            Write(BootstrapProvenanceReader.MsiLoaderLogName, LoaderRun("1.1"));
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.Equal("msi", p.LoaderLog);
+            Assert.Equal("1.1", p.LoaderVersion);
+        }
+
+        [Fact]
+        public void With_both_loader_logs_the_most_recently_written_one_counts()
+        {
+            Write(BootstrapProvenanceReader.LoaderLogName, LoaderRun("1.0"));
+            Write(BootstrapProvenanceReader.MsiLoaderLogName, LoaderRun("1.2"));
+            File.SetLastWriteTimeUtc(Path.Combine(_dir, BootstrapProvenanceReader.LoaderLogName), DateTime.UtcNow.AddDays(-3));
+            File.SetLastWriteTimeUtc(Path.Combine(_dir, BootstrapProvenanceReader.MsiLoaderLogName), DateTime.UtcNow.AddMinutes(-1));
+
+            var p = BootstrapProvenanceReader.Read(_dir);
+
+            Assert.Equal("msi", p.LoaderLog);
+            Assert.Equal("1.2", p.LoaderVersion);
+        }
+
+        [Fact]
+        public void The_oobe_go_script_is_recognised_by_its_log()
+        {
+            Write(BootstrapProvenanceReader.OobeLogName, "[2026-10-13 09:00:00] ===== Autopilot Monitor OOBE Bootstrap =====");
+
+            Assert.True(BootstrapProvenanceReader.Read(_dir).OobeLogPresent);
+        }
+
+        [Fact]
+        public void Only_the_tail_of_a_large_log_is_read()
+        {
+            var filler = Enumerable.Repeat(new string('.', 200), 600).ToArray();   // ~120 KB
+            var lines = new List<string> { InstallerRun("2.1") };
+            lines.AddRange(filler);
+            lines.Add(InstallerRun("2.5"));
+            Write(BootstrapProvenanceReader.InstallerLogName, lines.ToArray());
+
+            Assert.Equal("2.5", BootstrapProvenanceReader.Read(_dir).ScriptVersion);
+        }
+
+        [Fact]
+        public void A_missing_directory_reads_as_unknown_and_never_throws()
+        {
+            var p = BootstrapProvenanceReader.Read(Path.Combine(_dir, "does-not-exist"));
+
+            Assert.False(p.ScriptLogPresent);
+            Assert.Null(p.ScriptVersion);
+            Assert.Null(p.LoaderLog);
+            Assert.False(p.OobeLogPresent);
+        }
+
+        [Fact]
+        public void The_event_keys_carry_versions_only_never_the_account_name()
+        {
+            Write(BootstrapProvenanceReader.LoaderLogName, LoaderRun("1.2"));
+            Write(BootstrapProvenanceReader.InstallerLogName, InstallerRun("2.5"));
+            var data = new Dictionary<string, object>();
+
+            BootstrapProvenanceReader.Read(_dir).AddTo(data);
+
+            Assert.Equal(true, data["bootstrapScriptLogPresent"]);
+            Assert.Equal("2.5", data["bootstrapScriptVersion"]);
+            Assert.Equal("loader", data["bootstrapLoaderLog"]);
+            Assert.Equal("1.2", data["bootstrapLoaderVersion"]);
+            Assert.Equal(false, data["oobeBootstrapLogPresent"]);
+            Assert.DoesNotContain(data.Values, v => v is string s && s.Contains("SECRETUSER"));
+        }
+
+        [Fact]
+        public void Keys_that_were_not_found_are_left_out()
+        {
+            var data = new Dictionary<string, object>();
+
+            BootstrapProvenanceReader.Read(_dir).AddTo(data);
+
+            Assert.Equal(new[] { "bootstrapScriptLogPresent", "oobeBootstrapLogPresent" }, data.Keys.OrderBy(k => k).ToArray());
+        }
+    }
+}

src/Agent/AutopilotMonitor.Agent.V2.Core.Tests/Monitoring/Runtime/SelfUpdaterPayloadCatalogTests.cs

@@ -0,0 +1,101 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using AutopilotMonitor.Agent.V2.Core.Monitoring.Runtime;
+using AutopilotMonitor.Agent.V2.Core.Security;
+using Xunit;
+
+namespace AutopilotMonitor.Agent.V2.Core.Tests.Monitoring.Runtime
+{
+    /// <summary>
+    /// Step 5b of the self-update: the staged payload must match its signed catalog before a
+    /// single file is swapped in. The verifier is replaced through the static hook; each test
+    /// restores it, as in <see cref="SelfUpdaterGracefulShutdownTests"/>.
+    /// </summary>
+    public sealed class SelfUpdaterPayloadCatalogTests : IDisposable
+    {
+        private const string StagingDir = @"C:\ProgramData\AutopilotMonitor\Agent-Update";
+
+        private readonly Func<string, PayloadCatalogVerdict> _savedVerifier;
+        private readonly List<string> _log = new List<string>();
+
+        public SelfUpdaterPayloadCatalogTests()
+        {
+            _savedVerifier = SelfUpdater.VerifyPayloadCatalog;
+        }
+
+        public void Dispose() => SelfUpdater.VerifyPayloadCatalog = _savedVerifier;
+
+        [Fact]
+        public void Production_default_is_the_real_verifier()
+        {
+            Assert.Equal(typeof(PayloadCatalogVerifier), _savedVerifier.Method.DeclaringType);
+            Assert.Equal(nameof(PayloadCatalogVerifier.Verify), _savedVerifier.Method.Name);
+        }
+
+        [Fact]
+        public void Accepted_payload_lets_the_update_continue()
+        {
+            string? checkedDir = null;
+            SelfUpdater.VerifyPayloadCatalog = dir => { checkedDir = dir; return PayloadCatalogVerdict.Accept(); };
+
+            var ok = SelfUpdater.VerifyStagedPayload(StagingDir, _log.Add, out var reason);
+
+            Assert.True(ok);
+            Assert.Null(reason);
+            Assert.Equal(StagingDir, checkedDir);
+            Assert.Contains(_log, line => line.Contains("payload catalog verified"));
+        }
+
+        [Fact]
+        public void Rejected_payload_stops_the_update_and_hands_over_the_reason()
+        {
+            SelfUpdater.VerifyPayloadCatalog = _ =>
+                PayloadCatalogVerdict.Reject("payload differs from catalog (missing: none; extra: evil.dll; changed: none)");
+
+            var ok = SelfUpdater.VerifyStagedPayload(StagingDir, _log.Add, out var reason);
+
+            Assert.False(ok);
+            Assert.Contains("extra: evil.dll", reason);
+            Assert.Contains(_log, line => line.Contains("REJECTED"));
+        }
+
+        [Fact]
+        public void A_throwing_verifier_is_a_rejection_not_a_pass()
+        {
+            SelfUpdater.VerifyPayloadCatalog = _ => throw new InvalidOperationException("runspace broke");
+
+            var ok = SelfUpdater.VerifyStagedPayload(StagingDir, _log.Add, out var reason);
+
+            Assert.False(ok);
+            Assert.Contains("runspace broke", reason);
+        }
+
+        [Fact]
+        public void The_catalog_check_runs_before_any_file_is_swapped()
+        {
+            // Source-level pin: CheckAndApplyUpdateAsync has no seam for the download, so the
+            // ordering that makes the check meaningful is pinned on the source itself.
+            var source = File.ReadAllText(Path.Combine(FindRepoRoot(),
+                "src", "Agent", "AutopilotMonitor.Agent.V2.Core", "Monitoring", "Runtime", "SelfUpdater.cs"));
+
+            var check = source.IndexOf("if (!VerifyStagedPayload(stagingDir, log, out var catalogRejection))", StringComparison.Ordinal);
+            var swap = source.IndexOf("var swapOk = SwapFiles(agentDir, stagingDir, log);", StringComparison.Ordinal);
+
+            Assert.True(check > 0, "step 5b not found in SelfUpdater.cs");
+            Assert.True(swap > check, "SwapFiles must come after the catalog check");
+            Assert.Contains("WriteSkipMarker(\"catalog_rejected\"", source);
+        }
+
+        private static string FindRepoRoot()
+        {
+            var dir = new DirectoryInfo(AppContext.BaseDirectory);
+            while (dir != null && !File.Exists(Path.Combine(dir.FullName, "AutopilotMonitor.sln")))
+            {
+                dir = dir.Parent;
+            }
+            Assert.NotNull(dir);
+            return dir.FullName;
+        }
+    }
+}