# Modernization Debt Log

Status: live
Last updated: 2026-05-31

Every shortcut, temporary adapter, retained vendored dependency, skipped
platform gate, compatibility shim, or incomplete automation path must be
recorded here before it lands. Entries must be specific enough for a future
agent or engineer to remove them without reconstructing context from chat.

## Entry Rules

- Add an entry before merging the shortcut.
- Reference the debt id in code comments, TODOs, ADRs, or roadmap notes.
- Include an owner, reason, validation command, and removal condition.
- Do not close an entry until the removal condition is met and validated.
- Prefer deleting shortcuts over expanding this log.

## Open Debt

| ID | Status | Owner | Item | Reason | Validation | Removal Condition |
| --- | --- | --- | --- | --- | --- | --- |
| DEBT-0001 | Open | Modernization | Existing platform build files remain alongside new CMake | Required for incremental migration without losing platform coverage | Existing platform builds plus new CMake configure | Remove after all platform builds consume shared CMake targets |
| DEBT-0002 | Open | Modernization | Vendored SDK and patched libraries retained initially | Some dependencies are SDK-only, patched, or have platform-specific binaries | Dependency inventory and platform build smoke tests | Replace with vcpkg packages or document permanent vendored status after triplet evaluation |
| DEBT-0003 | Open | Modernization | Existing singletons remain during initial split | Avoid behavior changes while introducing component boundaries | App launch and component tests | Replace singleton reaches with context/service injection at component boundaries |
| DEBT-0004 | Open | Modernization | Android, Linux, WebGL, Apple, and AppX build files remain platform-specific until root CMake alignment reaches them | Prevent platform regressions during incremental migration; raw Windows `.sln/.vcxproj` files were removed on 2026-05-31 by user decision | `cmake --preset windows-msvc-default`; platform-specific configure/build smoke checks as each platform is migrated | Root CMake owns every platform source list and package path |
| DEBT-0005 | Open | Modernization | Temporary local CTest harness is used before Catch2 is wired through vcpkg | `vcpkg` is not currently on PATH, but headless tests need to run now | `ctest --preset desktop-fast --build-config Debug` | Replace `tests/test_harness.h` tests with Catch2 tests once vcpkg toolchain/presets are validated |
| DEBT-0007 | Open | Modernization | `vcpkg.json` exists but CMake is not yet using a validated vcpkg toolchain on this machine | `vcpkg` is not available on PATH and Visual Studio reports manifest mode is disabled | `cmake --preset windows-msvc-default` currently configures with vendored dependencies | Add validated vcpkg toolchain/preset integration for desktop, Android, and Apple triplets |
| 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 |

## Closed Debt

| ID | Status | Owner | Item | Reason | Validation | Removal Condition |
| --- | --- | --- | --- | --- | --- | --- |
| DEBT-0006 | Closed | Modernization | `pano_cli create-document` validates and emits JSON command contracts but does not yet invoke the legacy document/app model | The document model had not been extracted from `Canvas`/`App` yet | `ctest --preset desktop-fast --build-config Debug`; `pano_cli_create_document_smoke` | Closed on 2026-05-31: command now constructs a real `pp_document::CanvasDocument` |