Migrates legacy OWIN OpenID Connect authentication (Microsoft.Owin.Security.OpenIdConnect) to ASP.NET Core OpenID Connect (Microsoft.AspNetCore.Authentication.OpenIdConnect). Use ONLY when Microsoft.Owin.Security.OpenIdConnect has been flagged as obsolete or deprecated and must be replaced — not for version-bump scenarios where Microsoft.Owin.Security.OpenIdConnect is still supported.
Install
npx skills add microsoft/upgrade-agent-plugins --skill migrating-owin-openid-connectnpx skills add microsoft/upgrade-agent-plugins --skill migrating-owin-openid-connect -a claude-code -gnpx skills add microsoft/upgrade-agent-plugins --skill migrating-owin-openid-connect -a codex -ggemini skills install https://github.com/microsoft/upgrade-agent-plugins.git --path plugins/upgrade-agent/upgrade/dotnet/skills/lazy/libraries/migrating-owin-openid-connectgh skill install microsoft/upgrade-agent-plugins migrating-owin-openid-connectgit 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/libraries/migrating-owin-openid-connect ~/.claude/skills/migrating-owin-openid-connect # Claude Code
cp -R /tmp/microsoft__upgrade-agent-plugins/plugins/upgrade-agent/upgrade/dotnet/skills/lazy/libraries/migrating-owin-openid-connect ~/.agents/skills/migrating-owin-openid-connect # Codex, Cursor, Gemini CLI, Copilot, OpenCode