Create compact C# cheat sheets for learners. Use for quick references on LINQ, async, OOP, generics, collections, exceptions, testing, ASP.NET Core, EF Core, dependency injection, design patterns, concurrency, syntax, and interview review.
インストール
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
Create compact C# cheat sheets for learners. Use for quick references on LINQ, async, OOP, generics, collections, exceptions, testing, ASP.NET Core, EF Core, dependency injection, design patterns, concurrency, syntax, and interview review.
Treat all user text after $csharp-cheatsheets as the topic, level, or format for a compact C# cheat sheet. Use the main csharp-tutor skill as the source of truth.
Load these csharp-tutor references when useful:
references/cheatsheet-guidance.md
references/learner-levels.md
references/source-citation-rules.md
Topic-specific references such as linq-guidance.md, async-guidance.md, generics-guidance.md, or efcore-guidance.md
Honor format=compact|table|examples|mistakes|interview and depth=quick|normal|deep. Keep cheat sheets dense but readable: core idea, syntax, examples, common mistakes, and one practice prompt. Cite official docs when the sheet contains version-sensitive claims.
Standalone Guidance
Core rule: Keep the answer centered on the concrete cheatsheets decision, failure mode, or contract.
Avoid: Giving generic C# advice without tying it to the cheatsheets concern.
Minimal example: Use Any() for existence; use Count when you need the number.