Migrates server-side WCF services from .NET Framework to CoreWCF for .NET 6+. Converts hosting, configuration, bindings, behavior extensions, and APM-style contracts. Use when a project references System.ServiceModel via GAC, contains .svc files, uses ServiceHost, or needs WCF endpoints rehosted in ASP.NET Core. Also handles mixed client/server projects by preserving client packages.
Install
npx skills add microsoft/upgrade-agent-plugins --skill migrating-wcf-to-corewcfnpx skills add microsoft/upgrade-agent-plugins --skill migrating-wcf-to-corewcf -a claude-code -gnpx skills add microsoft/upgrade-agent-plugins --skill migrating-wcf-to-corewcf -a codex -ggemini skills install https://github.com/microsoft/upgrade-agent-plugins.git --path plugins/upgrade-agent/upgrade/dotnet/skills/lazy/web/wcf/migrating-wcf-to-corewcfgh skill install microsoft/upgrade-agent-plugins migrating-wcf-to-corewcfgit 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/lazy/web/wcf/migrating-wcf-to-corewcf ~/.claude/skills/migrating-wcf-to-corewcf # Claude Code
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/lazy/web/wcf/migrating-wcf-to-corewcf ~/.agents/skills/migrating-wcf-to-corewcf # Codex, Cursor, Gemini CLI, Copilot, OpenCode