Build, review, refactor, or architect ASP.NET Core web applications using current official guidance for .NET web development. Use when working on Blazor Web Apps, Razor Pages, MVC, Minimal APIs, controller-based Web APIs, SignalR, gRPC, middleware, dependency injection, configuration, authentication, authorization, testing, performance, deployment, or ASP.NET Core upgrades.
Install
npx skills add openai/skills --skill aspnet-corenpx skills add openai/skills --skill aspnet-core -a claude-code -gnpx skills add openai/skills --skill aspnet-core -a codex -ggemini skills install https://github.com/openai/skills.git --path skills/.curated/aspnet-coregh skill install openai/skills aspnet-coregit clone --depth 1 https://github.com/openai/skills /tmp/openai__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/openai__skills/skills/.curated/aspnet-core ~/.claude/skills/aspnet-core # Claude Code
cp -R /tmp/openai__skills/skills/.curated/aspnet-core ~/.agents/skills/aspnet-core # Codex, Cursor, Gemini CLI, Copilot, OpenCode