diff --git a/docs/modernization/build-inventory.md b/docs/modernization/build-inventory.md
index 327df87..e901c82 100644
--- a/docs/modernization/build-inventory.md
+++ b/docs/modernization/build-inventory.md
@@ -65,6 +65,7 @@ powershell -ExecutionPolicy Bypass -File scripts\automation\test.ps1 -Preset des
 powershell -ExecutionPolicy Bypass -File scripts\automation\build.ps1 -Preset windows-msvc-default -Configuration Debug -Target pano_cli
 cmake --preset android-arm64
 powershell -ExecutionPolicy Bypass -File scripts\automation\platform-build.ps1 -Presets android-arm64
+powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug
 ```
 
 Known local toolchain state:
diff --git a/docs/modernization/debt.md b/docs/modernization/debt.md
index 9ef1b01..05b3328 100644
--- a/docs/modernization/debt.md
+++ b/docs/modernization/debt.md
@@ -29,6 +29,7 @@ agent or engineer to remove them without reconstructing context from chat.
 | DEBT-0008 | Open | Modernization | `windows-msvc-default` preset is used for local validation because the VS 2026 generator is not installed here | The target VS 2026 preset must remain, but this machine configures with Visual Studio 17 2022 | `cmake --preset windows-msvc-default`; `ctest --preset desktop-fast --build-config Debug` | Validate `windows-vs2026-x64` on a machine with Visual Studio 2026 installed and make it the default Windows validation preset |
 | DEBT-0009 | Open | Modernization | Android root CMake validation currently builds headless targets only, not APK/package variants | Platform app entrypoints still live in legacy Gradle/CMake projects and need Phase 6 alignment | `powershell -ExecutionPolicy Bypass -File scripts\automation\platform-build.ps1 -Presets android-arm64` | Android standard, Quest, and Focus/Wave package targets consume shared component targets and have package smoke commands |
 | DEBT-0010 | Open | Modernization | `pp_document` is a pure layer/document model but is not yet wired to legacy `Canvas`, PPI load/save, animation frames, or undo/redo | Keep extraction incremental while preserving app behavior | `ctest --preset desktop-fast --build-config Debug`; `pano_cli create-document --width 64 --height 32 --layers 2` | Legacy document behavior is represented by `pp_document` tests and the app consumes it through a boundary/facade |
+| DEBT-0011 | Open | Modernization | `package-smoke` validates the Windows CMake app artifact only, not AppX/APK/Apple/WebGL package outputs | Platform package targets are not migrated to root CMake yet | `powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug` | Package-smoke covers Windows AppX, Android APK variants, Apple bundles, and WebGL output where local toolchains are present |
 
 ## Closed Debt
 
diff --git a/docs/modernization/roadmap.md b/docs/modernization/roadmap.md
index b9e41a8..30b71fe 100644
--- a/docs/modernization/roadmap.md
+++ b/docs/modernization/roadmap.md
@@ -242,10 +242,11 @@ Gate:
 Goal: make each component reachable by automated tools and future agents.
 
 Status: in progress. `tests/` exists, `desktop-fast` runs headlessly, and
-PowerShell/bash wrappers exist for configure/build/test/analyze/platform-build.
-`pano_cli` exists with JSON automation commands for creating a `pp_document`
-model and inspecting image signatures; full document/app integration is
-debt-tracked as DEBT-0010.
+PowerShell/bash wrappers exist for
+configure/build/test/analyze/platform-build/package-smoke. `pano_cli` exists
+with JSON automation commands for creating a `pp_document` model and
+inspecting image signatures; full document/app integration is debt-tracked as
+DEBT-0010.
 
 Implementation tasks:
 
@@ -520,6 +521,7 @@ powershell -ExecutionPolicy Bypass -File scripts\automation\test.ps1 -Preset des
 powershell -ExecutionPolicy Bypass -File scripts\automation\build.ps1 -Preset windows-msvc-default -Configuration Debug -Target pano_cli
 cmake --preset android-arm64
 powershell -ExecutionPolicy Bypass -File scripts\automation\platform-build.ps1 -Presets android-arm64
+powershell -ExecutionPolicy Bypass -File scripts\automation\package-smoke.ps1 -Preset windows-msvc-default -Configuration Debug
 ```
 
 Results:
@@ -539,6 +541,8 @@ Results:
   `out/build/windows-msvc-default/Debug/PanoPainter.exe`.
 - PowerShell build/test automation wrappers return JSON summaries and passed
   local smoke checks.
+- PowerShell package-smoke wrapper validates the Windows CMake app executable
+  and runtime `data/` copy.
 - Android arm64 configured with NDK 29.0.14206865 through the platform-build
   wrapper and compiled headless foundation/tool/test targets.
 - Known remaining warnings: legacy project/vendor diagnostics, Visual Studio
diff --git a/scripts/automation/package-smoke.ps1 b/scripts/automation/package-smoke.ps1
new file mode 100644
index 0000000..95317f7
--- /dev/null
+++ b/scripts/automation/package-smoke.ps1
@@ -0,0 +1,48 @@
+[CmdletBinding()]
+param(
+    [string]$Preset = "windows-msvc-default",
+    [string]$Configuration = "Debug",
+    [string]$Target = "PanoPainter"
+)
+
+$ErrorActionPreference = "Stop"
+$started = Get-Date
+
+& cmake --build --preset $Preset --config $Configuration --target $Target
+$buildExitCode = $LASTEXITCODE
+if ($buildExitCode -ne 0) {
+    $elapsed = [int]((Get-Date) - $started).TotalMilliseconds
+    [ordered]@{
+        command = "package-smoke"
+        preset = $Preset
+        configuration = $Configuration
+        target = $Target
+        stage = "build"
+        exitCode = $buildExitCode
+        elapsedMs = $elapsed
+    } | ConvertTo-Json -Compress
+    exit $buildExitCode
+}
+
+$binaryDir = Join-Path (Join-Path (Join-Path (Get-Location) "out/build/$Preset") $Configuration) "$Target.exe"
+$dataDir = Join-Path (Join-Path (Join-Path (Get-Location) "out/build/$Preset") $Configuration) "data"
+$checks = @(
+    [ordered]@{ name = "executable"; path = $binaryDir; exists = Test-Path -LiteralPath $binaryDir -PathType Leaf },
+    [ordered]@{ name = "data"; path = $dataDir; exists = Test-Path -LiteralPath $dataDir -PathType Container }
+)
+
+$failed = @($checks | Where-Object { -not $_.exists })
+$exitCode = if ($failed.Count -eq 0) { 0 } else { 2 }
+$elapsedMs = [int]((Get-Date) - $started).TotalMilliseconds
+
+[ordered]@{
+    command = "package-smoke"
+    preset = $Preset
+    configuration = $Configuration
+    target = $Target
+    exitCode = $exitCode
+    elapsedMs = $elapsedMs
+    checks = $checks
+} | ConvertTo-Json -Compress -Depth 5
+
+exit $exitCode
diff --git a/scripts/automation/package-smoke.sh b/scripts/automation/package-smoke.sh
new file mode 100644
index 0000000..551eec4
--- /dev/null
+++ b/scripts/automation/package-smoke.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env sh
+set -u
+
+preset="${1:-linux-clang}"
+configuration="${2:-Debug}"
+target="${3:-PanoPainter}"
+artifact="${4:-out/build/$preset/$target}"
+start="$(date +%s)"
+
+cmake --build --preset "$preset" --config "$configuration" --target "$target"
+build_exit="$?"
+if [ "$build_exit" -ne 0 ]; then
+    end="$(date +%s)"
+    elapsed_ms="$(( (end - start) * 1000 ))"
+    printf '{"command":"package-smoke","preset":"%s","configuration":"%s","target":"%s","stage":"build","exitCode":%s,"elapsedMs":%s}\n' "$preset" "$configuration" "$target" "$build_exit" "$elapsed_ms"
+    exit "$build_exit"
+fi
+
+if [ -e "$artifact" ]; then
+    exit_code=0
+else
+    exit_code=2
+fi
+
+end="$(date +%s)"
+elapsed_ms="$(( (end - start) * 1000 ))"
+printf '{"command":"package-smoke","preset":"%s","configuration":"%s","target":"%s","artifact":"%s","exists":%s,"exitCode":%s,"elapsedMs":%s}\n' "$preset" "$configuration" "$target" "$artifact" "$([ "$exit_code" -eq 0 ] && printf true || printf false)" "$exit_code" "$elapsed_ms"
+exit "$exit_code"