diff --git a/scripts/build-unity-package.ps1 b/scripts/build-unity-package.ps1
index 329cedb..f5fcacc 100644
--- a/scripts/build-unity-package.ps1
+++ b/scripts/build-unity-package.ps1
@@ -41,11 +41,13 @@ foreach ($path in @($freshAssembly, $freshSymbols)) {
 
 $requiredTemplateFiles = @(
   "LICENSE.md",
+  "LICENSE.md.meta",
   "README.md",
+  "README.md.meta",
   "THIRD-PARTY-NOTICES.md",
+  "THIRD-PARTY-NOTICES.md.meta",
   "package.json",
-  "Runtime\CultMath.asmdef",
-  "Runtime\CultMath.asmdef.meta",
+  "package.json.meta",
   "Runtime\Plugins\CultMath.dll",
   "Runtime\Plugins\CultMath.dll.meta",
   "Runtime\Plugins\CultMath.pdb",
@@ -72,6 +74,14 @@ if ($missingAssetMetas.Count -ne 0 -or $missingDirectoryMetas.Count -ne 0) {
 }
 
 $manifest = Get-Content -LiteralPath (Join-Path $templateRoot "package.json") -Raw | ConvertFrom-Json
+$pluginMeta = Get-Content -LiteralPath ($trackedAssembly + ".meta") -Raw
+if ($pluginMeta -notmatch '(?m)^\s*isExplicitlyReferenced:\s*0\s*$') {
+  throw "CultMath.dll must be auto-referenced; explicit-only plugins do not reach dependent Unity asmdefs"
+}
+$facadeDefinitions = @(Get-ChildItem -LiteralPath $templateRoot -Recurse -File -Filter "*.asmdef")
+if ($facadeDefinitions.Count -ne 0) {
+  throw "CultMath's precompiled DLL is the Unity assembly authority; empty asmdef facades are forbidden"
+}
 $expectedFileVersion = "$($manifest.version).0"
 $trackedFileVersion = [Diagnostics.FileVersionInfo]::GetVersionInfo($trackedAssembly).FileVersion
 $freshFileVersion = [Diagnostics.FileVersionInfo]::GetVersionInfo($freshAssembly).FileVersion
@@ -97,11 +107,13 @@ Copy-Item -Path (Join-Path $templateRoot "*") -Destination $outputRoot -Recurse
 
 $stagedAssemblies = @(Get-ChildItem -LiteralPath (Join-Path $outputRoot "Runtime\Plugins") -Filter "*.dll")
 $stagedSources = @(Get-ChildItem -LiteralPath $outputRoot -Recurse -File -Filter "*.cs")
-if ($stagedAssemblies.Count -ne 1 -or $stagedAssemblies[0].Name -ne "CultMath.dll" -or $stagedSources.Count -ne 0) {
-  throw "CultMath package must contain one owned DLL and no C# source files"
+$stagedFacades = @(Get-ChildItem -LiteralPath $outputRoot -Recurse -File -Filter "*.asmdef")
+if ($stagedAssemblies.Count -ne 1 -or $stagedAssemblies[0].Name -ne "CultMath.dll" -or $stagedSources.Count -ne 0 -or $stagedFacades.Count -ne 0) {
+  throw "CultMath package must contain one owned auto-referenced DLL, no C# source files, and no asmdef facade"
 }
 
 Write-Host "CultMath Unity package: $outputRoot"
 Write-Host "Package: $($manifest.name)@$($manifest.version)"
 Write-Host "Managed assemblies: $($stagedAssemblies.Count)"
 Write-Host "C# source files: $($stagedSources.Count)"
+Write-Host "Asmdef facades: $($stagedFacades.Count)"
diff --git a/unity/org.gamecult.cultmath/LICENSE.md.meta b/unity/org.gamecult.cultmath/LICENSE.md.meta
new file mode 100644
index 0000000..c234cd2
--- /dev/null
+++ b/unity/org.gamecult.cultmath/LICENSE.md.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 7172bce28532878409e57f5fbbb12719
\ No newline at end of file
diff --git a/unity/org.gamecult.cultmath/README.md b/unity/org.gamecult.cultmath/README.md
index 1802ae9..223e16c 100644
--- a/unity/org.gamecult.cultmath/README.md
+++ b/unity/org.gamecult.cultmath/README.md
@@ -6,8 +6,8 @@ precompiled `CultMath.dll`, portable symbols, and the numeric
 
 Unity does not compile CultMath's repository source tree. That source uses the
 current C# language and remains owned by the normal .NET project. The package
-facade references only the tracked precompiled assembly, so consumers do not
-need `csc.rsp` language overrides.
+imports only the tracked auto-referenced precompiled assembly, so consumers do
+not need `csc.rsp` language overrides or an asmdef propagation shim.
 
 Build and inspect the package from the repository root:
 
diff --git a/unity/org.gamecult.cultmath/README.md.meta b/unity/org.gamecult.cultmath/README.md.meta
new file mode 100644
index 0000000..0ea270c
--- /dev/null
+++ b/unity/org.gamecult.cultmath/README.md.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: b7429934026d747489a3876fd15576e5
\ No newline at end of file
diff --git a/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef b/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef
deleted file mode 100644
index 72c968e..0000000
--- a/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "name": "CultMath",
-  "rootNamespace": "CultMath",
-  "references": [],
-  "includePlatforms": [],
-  "excludePlatforms": [],
-  "allowUnsafeCode": true,
-  "overrideReferences": true,
-  "precompiledReferences": [
-    "CultMath.dll"
-  ],
-  "autoReferenced": true,
-  "defineConstraints": [],
-  "versionDefines": [],
-  "noEngineReferences": true
-}
diff --git a/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef.meta b/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef.meta
deleted file mode 100644
index 0ec09c2..0000000
--- a/unity/org.gamecult.cultmath/Runtime/CultMath.asmdef.meta
+++ /dev/null
@@ -1,7 +0,0 @@
-fileFormatVersion: 2
-guid: 4b5c49d478124399a5310d7a9d8ed166
-AssemblyDefinitionImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll
index 8cdb670..91b51d8 100644
Binary files a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll and b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll differ
diff --git a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll.meta b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll.meta
index d9935b3..917e384 100644
--- a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll.meta
+++ b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.dll.meta
@@ -8,7 +8,7 @@ PluginImporter:
   defineConstraints: []
   isPreloaded: 0
   isOverridable: 0
-  isExplicitlyReferenced: 1
+  isExplicitlyReferenced: 0
   validateReferences: 1
   platformData:
   - first:
diff --git a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.pdb b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.pdb
index ed00f36..711cf76 100644
Binary files a/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.pdb and b/unity/org.gamecult.cultmath/Runtime/Plugins/CultMath.pdb differ
diff --git a/unity/org.gamecult.cultmath/THIRD-PARTY-NOTICES.md.meta b/unity/org.gamecult.cultmath/THIRD-PARTY-NOTICES.md.meta
new file mode 100644
index 0000000..a53f08d
--- /dev/null
+++ b/unity/org.gamecult.cultmath/THIRD-PARTY-NOTICES.md.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 0c88669e4d1db604588be2a726b7d231
\ No newline at end of file
diff --git a/unity/org.gamecult.cultmath/package.json.meta b/unity/org.gamecult.cultmath/package.json.meta
new file mode 100644
index 0000000..337ba71
--- /dev/null
+++ b/unity/org.gamecult.cultmath/package.json.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 33d8d4af49bf0f946ad00a375f26b1d1
\ No newline at end of file