diff --git a/Header.ps1 b/Header.ps1
index d2f4a39..add4b85 100644
--- a/Header.ps1
+++ b/Header.ps1
@@ -3,7 +3,7 @@
     RackStack - All-in-one Windows Server setup utility (Monolithic Build).
 
 .DESCRIPTION
-    This is the MONOLITHIC BUILD -- all 78 modules combined into a single file.
+    This is the MONOLITHIC BUILD -- all 81 modules combined into a single file.
     Generated by sync-to-monolithic.ps1 from the modular source in Modules/.
     The .exe is compiled from this file via ps2exe.
 
diff --git a/README.md b/README.md
index 680db49..fcba1e0 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@
   <a href="https://www.bestpractices.dev/projects/12921"><img alt="OpenSSF Best Practices" src="https://www.bestpractices.dev/projects/12921/badge"></a>
   <a href="https://codecov.io/gh/TheAbider/RackStack"><img alt="codecov" src="https://codecov.io/gh/TheAbider/RackStack/branch/master/graph/badge.svg"></a>
   <img alt="PSScriptAnalyzer 0 errors" src="https://img.shields.io/badge/PSScriptAnalyzer-0%20errors-brightgreen">
-  <img alt="5493 structural tests" src="https://img.shields.io/badge/structural%20tests-5493-brightgreen">
+  <img alt="5495 structural tests" src="https://img.shields.io/badge/structural%20tests-5495-brightgreen">
   <img alt="Pester 312 tests" src="https://img.shields.io/badge/Pester-312%20tests-brightgreen">
   <img alt="SLSA Level 3" src="https://slsa.dev/images/gh-badge-level3.svg">
 </p>
diff --git a/Tests/Run-Tests.ps1 b/Tests/Run-Tests.ps1
index ff9c59a..77d3ac5 100644
--- a/Tests/Run-Tests.ps1
+++ b/Tests/Run-Tests.ps1
@@ -10651,6 +10651,24 @@ try {
 
     # README test badge label is the specific 'structural tests' (distinct from the Pester badge).
     Write-TestResult "DocFreshness: README test badge uses a specific label" ($readmeRaw -match 'structural%20tests|structural tests')
+
+    # Header.ps1's .DESCRIPTION states the module count, and it is the text that
+    # lands at the top of the shipped monolithic and therefore inside the EXE.
+    # It was NOT covered here and rotted to "all 78 modules" against a live 81.
+    #
+    # Scope matters: everything from the first .CHANGELOG onward is version
+    # history, where "64 modules, 1873 tests" is a true statement about v1.20.4.
+    # Asserting over the whole file would demand falsifying that history, so only
+    # the current-tense preamble is checked.
+    $headerRaw = Get-Content (Join-Path $script:ModuleRoot 'Header.ps1') -Raw
+    $firstChangelog = $headerRaw.IndexOf('.CHANGELOG')
+    $headerPreamble = if ($firstChangelog -gt 0) { $headerRaw.Substring(0, $firstChangelog) } else { $headerRaw }
+    Write-TestResult "DocFreshness: Header.ps1 preamble is separable from its changelog" `
+        ($firstChangelog -gt 0) "no .CHANGELOG found — the check below would scan version history"
+    $hdrMod = @([regex]::Matches($headerPreamble, '(\d{2,4})\s+modules\b'))
+    $hdrStale = @($hdrMod | Where-Object { [int]$_.Groups[1].Value -ne $liveModuleCount })
+    Write-TestResult "DocFreshness: Header.ps1 module count == $liveModuleCount" `
+        ($hdrStale.Count -eq 0) $(if ($hdrStale.Count) { "stale: $(($hdrStale | ForEach-Object { $_.Value }) -join ', ')" } else { "" })
 }
 catch {
     Write-TestResult "Documentation Freshness Tests" $false $_.Exception.Message