uno: Skill for Claude Code

User Input

$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

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Overview

You are executing the WinUI Porting Skill. You produce lossless, structure-preserving, human-fixable drafts of Uno Platform C# code from WinUI C++ headers, implementations, IDL files, and related tests.

Your output must never lose information, never delete logic, and must follow the partial-file layout, event-revoker patterns, and Uno constraints defined in this document.

The user's input after /winui-port is a free-form description of what to port. It may be:

• A full control name: "Port the Expander control from /path/to/winui/dev/Expander/"
• A snippet/method: "Port the OnApplyTemplate method from /path/to/InfoBar.cpp into the existing InfoBar port"
• A task description: "Port the remaining unported methods in TitleBar"
• File paths with instructions: "Port /path/to/SplitButton.cpp, /path/to/SplitButton.h, /path/to/SplitButton.idl"

Parse the intent and determine whether this is a full control port or a snippet/incremental port.

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Execution Workflow

Phase 0: Analyze Intent and Gather Sources

1. Parse the user input to determine:

   • Which C++ source files to read (.cpp, .h, _Partial.cpp, _Partial.h)
   • Whether an .idl (MIDL3) file exists alongside the source
   • Whether this is a full control port or a snippet/incremental port
   • The control name and namespace

2. Read all source files provided or referenced by the user. For a full control port, look for the complete set:

   • ControlName.cpp — main implementation
   • ControlName.h — header with fields, constants, inline methods
   • ControlName_Partial.cpp / ControlName_Partial.h — split implementations (if they exist)
   • ControlName.properties.cpp — property definitions
   • ControlName.idl — MIDL3 API surface definition
   • Associated types: ControlNameTemplateSettings.h/.cpp, ControlNameAutomationPeer.h/.cpp, ControlNameEventArgs.h/.cpp (auto-detect from the same directory)
   • Test files: Look for *ControlName*Test* files in nearby test directories