Documentation Verification Report

This report records source-grounded documentation verification passes for the engine docs in this checkout. It is not a replacement for the backlog; it records what was checked and which limitations remain.

2026-05-18 — source-tree and runtime model slice

Scope:

• Docs/SourceTree.md
• Docs/EntityModel.md
• Docs/MapsMovementGeometry.md
• Docs/Persistence.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Applications/, Source/Client/, Source/Common/, Source/Server/, Source/Scripting/, Source/Tools/, Source/Frontend/, Source/Essentials/, and Source/Tests/ for the source-tree routing page.
• Source/Common/Entity.*, EntityProperties.*, EntityProtos.*, Properties.*, PropertiesSerializator.*, and ProtoManager.* for entity/property/prototype claims.
• Source/Common/Geometry.*, LineTracer.*, Movement.*, PathFinding.*, MapLoader.*, and Source/Tools/MapBaker.* for map/movement/geometry claims.
• Source/Server/DataBase.*, Source/Server/DataBase-*.cpp, and Source/Tests/Test_DataBase.cpp for persistence claims.

Results:

• Backticked source/build/doc path checks for this slice: no remaining missing paths after replacing the stale Docs/Testing.md future route in SourceTree.md and linking runtime map behavior to the now-present ServerRuntime.md / ClientRuntime.md pages.
• Symbol spot checks found the documented owners in current source: EntityTypeDesc, FO_ENTITY_PROPERTY, ProtoEntity, PropertyRegistrator, GeometryHelper, FindPathInput, MovingContext, MapLoader, DataBaseImpl, RecoveryLogHandle, and CommitNextChange.
• Current test inventory observed in this checkout: 79 Source/Tests/Test_*.cpp files.
• Promoted in Docs/DocumentationBacklog.md: SourceTree.md, EntityModel.md, MapsMovementGeometry.md, and Persistence.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 client/frontend runtime slice below; continue next with Docs/Networking.md and Docs/ServerRuntime.md.
• Docs/Testing.md, Docs/Essentials.md, Docs/ConfigurationAndDataSources.md, and Docs/DocumentationMaintenance.md are still planned in this checkout unless created in a later pass.

2026-05-18 — client/frontend runtime slice

Scope:

• Docs/ClientRuntime.md
• Docs/FrontendAndRendering.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Client/Client.*, Source/Client/ClientConnection.*, Source/Client/ResourceManager.*, Source/Client/MapView.*, client entity/view classes, sprite factories, Source/Client/RenderTarget.*, Source/Client/SpriteManager.*, and Source/Client/EffectManager.* for client runtime composition, network dispatch, view-entity ownership, resources, sprites, effects, input mapping, and render-target claims.
• Source/Frontend/Application*.cpp, Source/Frontend/Application.h, Source/Frontend/Rendering*.cpp, Source/Frontend/Rendering.h, and BuildTools/cmake/stages/Packages.cmake for application services, headless/stub flows, renderer backends, package-boundary claims, and platform/frontend ownership.
• Source/Tests/Test_ClientEngine.cpp, Source/Tests/Test_ClientServerIntegration.cpp, Source/Tests/Test_ClientDataValidation.cpp, Source/Tests/Test_ClientRuntimeApi.cpp, and Source/Tests/Test_Rendering.cpp for the current engine-local validation surfaces named by the promoted pages.

Results:

• Backticked source/build/doc path checks for this slice: no missing paths after adding Source/Tests/Test_Rendering.cpp to the frontend/rendering page’s inspected sources.
• Symbol spot checks found the documented owners and APIs in current source, including ClientEngine, ClientConnection, GetClientResources, CreateNetworkConnection, TryFallbackToTcp, client Net_On... handlers, MapView, client view classes, sprite/effect/render-target managers, Application, AppWindow, AppInput, AppAudio, Renderer, RenderEffect, Null_Renderer, OpenGL_Renderer, Direct3D_Renderer, and IsRenderTargetFlipped.
• Current focused test inventory observed for this slice: four Source/Tests/Test_Client*.cpp files plus Source/Tests/Test_Rendering.cpp.
• Promoted in Docs/DocumentationBacklog.md: ClientRuntime.md and FrontendAndRendering.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 networking/server runtime slice below; continue next with Docs/ClientUpdater.md and updater boundary checks.

2026-05-18 — networking/server runtime slice

Scope:

• Docs/Networking.md
• Docs/ServerRuntime.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Common/NetBuffer.*, Source/Common/NetCommand.*, and Source/Common/NetworkUdp.* for message framing, hash/debug-hash serialization, admin command packing, and ordered UDP behavior.
• Source/Client/NetworkClient* and Source/Server/NetworkServer* for transport-neutral client/server abstractions plus interthread, socket, UDP, ASIO, and WebSocket implementations.
• Source/Server/Server.*, Source/Server/EntityManager.*, MapManager.*, CritterManager.*, ItemManager.*, Player.*, Critter.*, Map.*, Location.*, Item.*, ClientDataValidation.*, and UpdaterBackend.* for authoritative server runtime ownership, entity/session flow, validation, managers, movement, persistence handoff, and updater hosting.
• Source/Tests/Test_NetworkUdp.cpp, Source/Tests/Test_NetworkClient.cpp, Source/Tests/Test_NetworkServer.cpp, Source/Tests/Test_ServerEngine.cpp, Source/Tests/Test_ServerItems.cpp, Source/Tests/Test_ServerMapOperations.cpp, Source/Tests/Test_ServerAdvancedOps.cpp, Source/Tests/Test_ServerScriptMethods.cpp, Source/Tests/Test_ClientServerIntegration.cpp, Source/Tests/Test_ClientDataValidation.cpp, and Source/Tests/Test_DataBase.cpp for the current validation surfaces named by the promoted pages.

Results:

• Added a Source paths inspected section to Docs/Networking.md and replaced its generic integration-test wording with the concrete current Source/Tests/Test_ClientServerIntegration.cpp reference.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source, including NetBuffer, NetOutBuffer, NetInBuffer, PackNetCommand, NetworkClientConnection, NetworkServerConnection, NetworkServer, UdpOrderedChannel, UDP packet helpers, ServerEngine, server init/job methods, server events, EntityManager, MapManager, CritterManager, ItemManager, Player, inbound Process_* handlers, client-data validation functions, movement helpers, and UpdaterBackend.
• Current focused test inventory observed for this slice: three Source/Tests/Test_Network*.cpp files, five Source/Tests/Test_Server*.cpp files, plus Source/Tests/Test_ClientServerIntegration.cpp, Source/Tests/Test_ClientDataValidation.cpp, and Source/Tests/Test_DataBase.cpp.
• Promoted in Docs/DocumentationBacklog.md: Networking.md and ServerRuntime.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 client updater slice below; continue next with platform debugging docs: Docs/WebDebugging.md, Docs/AndroidDebugging.md, and Docs/Debugging.md.

2026-05-18 — client updater/runtime split slice

Scope:

• Docs/ClientUpdater.md
• updater-boundary references in Docs/ServerRuntime.md and Docs/ClientRuntime.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Applications/ClientApp.cpp and Source/Applications/ClientLib.cpp for host/runtime loading, fallback, staged binary promotion, reload results, and platform gating.
• Source/Client/ClientRuntimeApi.*, Source/Client/Updater.*, Source/Common/Common.h, and Source/Common/Settings-Include.h for runtime ABI, updater protocol versioning, update targets, disk hashing/cache behavior, and updater settings.
• Source/Server/UpdaterBackend.* and Source/Server/Server.cpp for server-side descriptor generation, file serving, target-specific binaries, and UpdateFileMaxPortionSize use.
• BuildTools/cmake/stages/Applications.cmake and BuildTools/package.py for client host/library build gates and runtime binary packaging/staging.
• Source/Tests/Test_ClientRuntimeApi.cpp plus updater pipeline tests under ../Tools/PipelineTests/ for runtime ABI, binary update, staging promotion, resource pack, compatibility-outdated, updater-outdated, missing-payload, and smoke coverage.

Results:

• Added a Source paths inspected section to Docs/ClientUpdater.md.
• Replaced obsolete package-entry wording with the current build_runtime_update_target_name owner in BuildTools/package.py.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source, including UpdaterBackend, LoadFromClientResources, ProcessUpdateFile, GetUpdateDescriptor, FO_CLIENT_RUNTIME_HOST_ABI_VERSION, ClientRuntimeMetadata, ClientRuntimeExports, ClientRuntimeResult, FO_QueryClientRuntimeExports, ApplyStagedBinaryUpdate, GetClientRuntimeLivePath, GetClientRuntimeStagingPath, RunClientFromLibrary, RunEmbeddedOrLoadedClient, ResolveRequestedClientRuntime, CanSelfUpdateNativeModules, FO_UPDATER_VERSION, UpdateFileTarget, ClientBinaries, ClientResources, GetCurrentBinaryUpdateTargetName, UpdateFileMaxPortionSize, UpdateFilesInMemory, PlatformBinaries, and build_runtime_update_target_name.
• Promoted in Docs/DocumentationBacklog.md: ClientUpdater.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 platform debugging slice below; continue next with Docs/Architecture.md and Docs/Applications.md.

2026-05-18 — platform debugging slice

Scope:

• Docs/WebDebugging.md
• Docs/AndroidDebugging.md
• Docs/Debugging.md
• Docs/DocumentationBacklog.md

Source areas checked:

• BuildTools/buildtools.py, BuildTools/prepare-workspace.sh, BuildTools/prepare-win-workspace.ps1, ThirdParty/emscripten, parent .vscode/tasks.json, parent .vscode/launch.json, parent CMakePresets.json, LastFrontier.fomain, Scripts/Scenes.fos, and Scripts/GameState.fos for web build/package/launch and remote-scene debugging flow.
• BuildTools/android_device.py, BuildTools/package.py, BuildTools/android-project/, FOnlineActivity.java, Android SDK/NDK pins, parent VS Code tasks, package definitions, CI workflow, and project config for Android package/install/launch/resource-copy behavior.
• BuildTools/natvis/, BuildTools/cmake/stages/Finalize.cmake, BuildTools/cmake/helpers/Build.cmake, Source/Essentials/StackTrace.*, BaseLogging.*, ExceptionHandling.*, Source/Scripting/AngelScript/AngelScriptContext.cpp, Source/Frontend/ApplicationInit.cpp, Source/Tests/Test_StackTrace.cpp, and Source/Tests/Test_ExceptionHandling.cpp for native visualizers, stack traces, exception callbacks, logging/crash paths, and debugger routing.

Results:

• Added Source paths inspected sections to the web, Android, and native debugging docs.
• Corrected stale stack/exception documentation from the previous context-object / deferred-log callback model to the current CatchedStackTraceData, FormatStackTrace(const CatchedStackTraceData&), WriteLogMessage, and SafeWriteStackTrace model.
• Corrected the AngelScript provider name from the old stack-frame wording to current CollectScriptStackLayers / script-layer behavior.
• Corrected web preset references to the parent ../../CMakePresets.json path.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source/config, including package-web-debug, prepare-host-workspace, Workspace/web-debug, package-android-debug, android-arm64, launch-game, FOnlineActivity, ClientNetwork.ServerHost, FO_STACK_TRACE_ENTRY, StackTraceData, CatchedStackTraceData, SetScriptStackTraceProvider, CollectScriptStackLayers, ResolveStackTrace, FormatStackTrace, SafeWriteStackTrace, GetStackTraceEntry, BaseEngineException, WriteLogMessage, and SetAsyncLogWriting.
• Promoted in Docs/DocumentationBacklog.md: WebDebugging.md, AndroidDebugging.md, and Debugging.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 architecture/applications slice below; continue next with the build/generation slice.

2026-05-18 — architecture/applications slice

Scope:

• Docs/Architecture.md
• Docs/Applications.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Applications/ for all current app entry-point files.
• Source/Common/EngineBase.*, Source/Common/Entity.*, Source/Common/ScriptSystem.*, Source/Client/Client.h, Source/Server/Server.h, Source/Frontend/Application.h, and Source/Frontend/ApplicationInit.cpp for the architecture layer map.
• BuildTools/cmake/stages/Applications.cmake and BuildTools/cmake/helpers/Build.cmake for application target wiring and helper ownership.

Results:

• Added Source paths inspected sections to the architecture and applications docs.
• Replaced stale future-doc wording with links to now-present BuildToolsPipeline.md, Scripting.md, ServerRuntime.md, BakingPipeline.md, and GeneratedApiAndMetadata.md; kept testing routed to Source/Tests/README.md until a dedicated Docs/Testing.md exists.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol/path spot checks found all documented application entry points and app-wiring helpers in current source.
• Promoted in Docs/DocumentationBacklog.md: Architecture.md and Applications.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 build/generation slice below; continue next with the script-boundary slice.

2026-05-18 — build/generation slice

Scope:

• Docs/BuildToolsPipeline.md
• Docs/BakingPipeline.md
• Docs/GeneratedApiAndMetadata.md
• Docs/DocumentationBacklog.md

Source areas checked:

• BuildTools/Init.cmake, all current BuildTools/cmake/stages/*.cmake, BuildTools/cmake/helpers/*.cmake, BuildTools/codegen.py, and BuildTools/package.py for staged build/generation/package ownership.
• Source/Applications/BakerApp.cpp, Source/Applications/BakerLib.cpp, Source/Tools/Baker.*, all current Source/Tools/*Baker.* implementations, BuildTools/cmake/stages/ScriptsAndBaking.cmake, and baker tests for baking behavior.
• BuildTools/cmake/stages/Codegen.cmake, BuildTools/cmake/stages/EngineSources.cmake, metadata helpers/state, BuildTools/codegen.py, Source/Common/MetadataRegistration.*, Source/Common/MetadataRegistration-Template.cpp, Source/Common/GenericCode-Template.cpp, Source/Common/Properties.*, Source/Common/Entity.*, Source/Tools/MetadataBaker.*, metadata/property tests, and PUBLIC_API.md for generated API and metadata behavior.

Results:

• Added Source paths inspected sections to the BuildTools, baking, and generated API/metadata docs.
• Replaced remaining future-script-doc wording in build routing with a real link to the present Scripting.md page.
• Confirmed current built-in baker owners include ModelMeshBaker / ModelInfoBaker under Source/Tools/ and current model-baker coverage in Source/Tests/Test_ModelBaker.cpp.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source, including AddStageHook, AddExecutableApplication, AddSharedApplication, BakeResources, ForceBakeResources, CompileAngelScript, CompileMonoScripts, BaseBaker, SetupBakers, MasterBaker, MetadataBaker, CodeGeneration, ForceCodeGeneration, FO_SOURCE_META_FILES, FO_MONO_SOURCE, FO_ADDED_COMMON_HEADERS, FO_EMBEDDED_DATA_CAPACITY, FO_INTERNAL_CONFIG_CAPACITY, RegisterDynamicMetadata, MetadataRegistration templates, GenericCode-Template, and PropertyRegistrator.
• Promoted in Docs/DocumentationBacklog.md: BuildToolsPipeline.md, BakingPipeline.md, and GeneratedApiAndMetadata.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 scripting/nullability slice below; continue next with the tools/mapper slice.

2026-05-18 — scripting/nullability slice

Scope:

• Docs/Scripting.md
• Docs/ScriptMethodsMap.md
• Docs/Nullability.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Common/ScriptSystem.*, Source/Scripting/AngelScript/AngelScriptScripting.*, AngelScriptBackend.*, AngelScriptAttributes.cpp, AngelScriptCall.cpp, AngelScriptEntity.cpp, AngelScriptGlobals.cpp, AngelScriptRemoteCalls.cpp, AngelScriptReflection.cpp, engine core scripts, Mono/Native roots, and BuildTools/cmake/stages/ScriptsAndBaking.cmake for scripting runtime/build flow.
• All 18 current Source/Scripting/*ScriptMethods.cpp files for native exported method ownership and current export counts.
• Source/Scripting/AngelScript/AngelScriptAttributes.cpp, Source/Tools/MetadataBaker.cpp, BuildTools/codegen.py, Source/Common/ScriptSystem.h, Source/Essentials/BasicCore.h, nullable analyzer tools under ../Tools/NullableEstimate/, parent VS Code/CI task wiring, and nullable/script tests for nullability contracts.

Results:

• Confirmed the current native script method map: 996 ///@ ExportMethod declarations across 18 script method files.
• Corrected stale nullability workflow wording: current nullable appliers preserve author-chosen markers and remove redundant guards; they do not own automatic contract inference.
• Replaced stale parent docs routes in Nullability.md with current engine docs and the current Source/Tests/README.md testing source of truth.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source, including ScriptSystem, ScriptSystemBackend, RegisterBackend, MapScriptTypes, InitModules, FindFunc, CheckFunc, CallFunc, CallAdminFunc, NativeDataProvider, CheckArgNotNull, CheckReturnNotNull, InitAngelScriptScripting, CompileAngelScript, AngelScriptBackend, RegisterMetadata, CompileTextScripts, LoadBinaryScripts, StripNullableTypeSuffix, FO_NULLABLE, and is_validated_pointer_meta_type.
• Promoted in Docs/DocumentationBacklog.md: Scripting.md, ScriptMethodsMap.md, and Nullability.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 tools/mapper slice below; continue next with the planned docs set.

2026-05-18 — tools/mapper slice

Scope:

• Docs/Tools.md
• Docs/MapperTools.md
• Docs/DocumentationBacklog.md

Source areas checked:

• All current Source/Tools/*.h and Source/Tools/*.cpp files, tool application entry points under Source/Applications/, and focused baker tests for reusable tool ownership.
• Source/Applications/MapperApp.cpp, Source/Tools/Mapper.*, Source/Scripting/MapperGlobalScriptMethods.cpp, Source/Scripting/CommonGlobalScriptMethods.cpp, Source/Client/MapView.*, and Source/Common/Geometry.cpp for mapper lifecycle, mapper automation helpers, screenshot/readback flow, and map/camera transform claims.
• Embedding-project examples explicitly marked as examples: ../../Scripts/MapperRender.fos, ../../Tools/MapPreview/generate_map_preview.py, ../../Tools/MapPreview/map_preview_overrides.ini, and ../../LastFrontier.fomain.

Results:

• Added Source paths inspected to Docs/MapperTools.md and kept project-specific map-preview/checkpoint details explicitly routed through ../../... embedding-project paths.
• Replaced stale parent-doc links in MapperTools.md with engine-local Architecture.md / Scripting.md links where the owner now exists in engine docs; project-only build/checkpoint routes remain plain embedding-project paths.
• Backticked source/build/doc path checks for this slice: no missing paths.
• Symbol spot checks found the documented owners and APIs in current source, including MasterBaker, BaseBaker, SetupBakers, MapperEngine, MapperMainLoop, DrawMapperFrame, ProcessMapperInputEvent, LoadMapFromText, LoadMap, ShowMap, SaveCurrentMap, SaveMap, Mapper_Game_* exports, Common_Game_RequestQuit, MapView::SetScreenSize, MapView::InstantScrollTo, MapView::InstantZoom, WriteSimpleTga, and GetHexOffset.
• Promoted in Docs/DocumentationBacklog.md: Tools.md and MapperTools.md from drafted to verified.

Follow-up:

• Completed by the later 2026-05-18 planned-docs completion slice below; the initial documentation backlog is now complete.

  2026-05-18 — planned-docs completion slice

Scope:

• Docs/Essentials.md
• Docs/ConfigurationAndDataSources.md
• Docs/Testing.md
• Docs/DocumentationMaintenance.md
• Docs/README.md
• Source/Tests/README.md
• AGENTS.md
• Docs/DocumentationBacklog.md

Source areas checked:

• Source/Essentials/*.h, Source/Essentials/*.cpp, BuildTools/cmake/stages/EngineSources.cmake, and essentials tests for the low-level foundation page.
• Source/Common/ConfigFile.*, Settings.*, Settings-Include.h, DataSource.*, FileSystem.*, CacheStorage.*, Source/Essentials/DiskFileSystem.*, Source/Client/ResourceManager.*, baker/config consumers, BuildTools generation/baking/package stages, and focused config/data-source/cache/filesystem tests for configuration/data-source routing.
• Source/Applications/TestingApp.cpp, all 79 current Source/Tests/Test_*.cpp files, FO_TESTS_SOURCE in BuildTools/cmake/stages/EngineSources.cmake, generated test/coverage target wiring in BuildTools/cmake/stages/Applications.cmake, coverage setup in BuildTools/cmake/stages/Init.cmake, BuildTools/codecoverage.py, and validator wrappers for the test-suite page.
• ../AGENTS.md, README.md, Docs/README.md, Docs/DocumentationBacklog.md, Docs/DocumentationExpansionPlan.md, Docs/DocumentationResearchTemplate.md, and this report for documentation-maintenance workflow.

Results:

• Created the final four planned docs and linked them from Docs/README.md and AGENTS.md where appropriate.
• Updated Source/Tests/README.md from a partial stale inventory to a complete short source-tree entry point linked to Docs/Testing.md.
• Confirmed the current test inventory is 79 Source/Tests/Test_*.cpp suites and listed every suite in Docs/Testing.md and Source/Tests/README.md.
• Promoted in Docs/DocumentationBacklog.md: Essentials.md, ConfigurationAndDataSources.md, Testing.md, and DocumentationMaintenance.md from planned to verified.
• Marked the initial documentation backlog plan complete. Future doc work should be driven by new source changes, stale findings, or explicit requests.

Follow-up:

• No backlog-planned docs remain. Re-run the documented checks whenever source or docs change.

  2026-05-18 — build workflow completion slice

Scope:

• Docs/BuildWorkflow.md
• README.md
• Docs/DocumentationExpansionPlan.md
• Docs/DocumentationBacklog.md

Source areas checked:

• ../CMakeLists.txt, ../BuildTools/README.md, ../BuildTools/Init.cmake, ../BuildTools/validate.sh, ../BuildTools/validate.cmd, ../BuildTools/buildtools.py, staged CMake files under ../BuildTools/cmake/stages/, helpers under ../BuildTools/cmake/helpers/, ../Source/Applications/TestingApp.cpp, and ../Source/Tests/README.md.

Results:

• Added source-inspection provenance and validation checklist to BuildWorkflow.md.
• Routed build validation to the newly created Testing.md, Essentials.md, and ConfigurationAndDataSources.md where appropriate.
• Added the final planned docs to the root README.md documentation index and refreshed DocumentationExpansionPlan.md current-baseline list.
• Promoted BuildWorkflow.md from drafted to verified; no non-legend planned, researching, or drafted backlog entries remain.

Follow-up:

• The initial documentation backlog remains complete; future work should be driven by source changes, stale findings, or new requested topics.