Adopts modern WinForms features in .NET 8+ applications including dark mode (Application.SetColorMode, SystemColors), async APIs (Control.InvokeAsync, Form.ShowDialogAsync, TaskDialog.ShowDialogAsync), and MVVM patterns (ViewModels, INotifyPropertyChanged, Commands, DataContext).
Install
npx skills add microsoft/upgrade-agent-plugins --skill winforms-feature-adoptionnpx skills add microsoft/upgrade-agent-plugins --skill winforms-feature-adoption -a claude-code -gnpx skills add microsoft/upgrade-agent-plugins --skill winforms-feature-adoption -a codex -ggemini skills install https://github.com/microsoft/upgrade-agent-plugins.git --path plugins/upgrade-agent/upgrade/dotnet/skills/scenarios/winforms-feature-adoptiongh skill install microsoft/upgrade-agent-plugins winforms-feature-adoptiongit clone --depth 1 https://github.com/microsoft/upgrade-agent-plugins /tmp/microsoft__upgrade-agent-plugins
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/scenarios/winforms-feature-adoption ~/.claude/skills/winforms-feature-adoption # Claude Code
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/scenarios/winforms-feature-adoption ~/.agents/skills/winforms-feature-adoption # Codex, Cursor, Gemini CLI, Copilot, OpenCode