Migrating from IdentityServer4 to Duende IdentityServer v8. Covers NuGet package replacement, namespace changes, API surface changes, EF Core database schema migrations, .NET target framework upgrade, license configuration, signing key migration, data protection, and UI template updates.
Install
npx skills add DuendeSoftware/duende-skills --skill identityserver4-migrationnpx skills add DuendeSoftware/duende-skills --skill identityserver4-migration -a claude-code -gnpx skills add DuendeSoftware/duende-skills --skill identityserver4-migration -a codex -ggemini skills install https://github.com/DuendeSoftware/duende-skills.git --path skills/identityserver4-migrationgh skill install DuendeSoftware/duende-skills identityserver4-migrationgit clone --depth 1 https://github.com/DuendeSoftware/duende-skills /tmp/DuendeSoftware__duende-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/DuendeSoftware__duende-skills/skills/identityserver4-migration ~/.claude/skills/identityserver4-migration # Claude Code
cp -R /tmp/DuendeSoftware__duende-skills/skills/identityserver4-migration ~/.agents/skills/identityserver4-migration # Codex, Cursor, Gemini CLI, Copilot, OpenCode