dotnet-patterns

Overview of dotnet-patterns skill

What dotnet-patterns is for

The dotnet-patterns skill helps you write and review idiomatic C# for backend work: cleaner models, clearer dependencies, safer async code, and more maintainable ASP.NET Core services. It is best for developers who want a practical .NET pattern guide rather than a generic “write better code” prompt.

Who should install it

Install the dotnet-patterns skill if you build APIs, services, or libraries in C# and want stronger defaults around immutability, explicitness, dependency injection, and async/await. It is especially useful for dotnet-patterns for Backend Development when code quality, maintainability, and refactoring speed matter more than quick prototypes.

What makes it different

The skill is opinionated about implementation choices, not just architecture slogans. Its value is in turning broad best practices into concrete habits: when to use records, how to make dependencies explicit, and how to avoid unclear nullability or hidden side effects. That makes dotnet-patterns more useful than a one-off prompt when you need repeatable output.

How to Use dotnet-patterns skill

Install and activate it

Use the dotnet-patterns install flow from your skills toolchain, then apply the skill when the task involves new C# code, code review, refactoring, or ASP.NET Core service design. If your environment uses Claude Code-style skill management, the install command shown in the repo is the fastest path: npx skills add affaan-m/everything-claude-code --skill dotnet-patterns.

Give it a concrete .NET task

The skill works best when your prompt names the target layer, code shape, and constraint. Good inputs include repository context, framework version, and the pain point you want fixed. For example: “Refactor this ASP.NET Core service to use immutable request models, explicit null checks, and constructor injection without changing public behavior.” That is stronger than “improve this code.”

Read the right files first

Start with SKILL.md, because it contains the activation cues and the core rules the skill is trying to enforce. If your repo has more skill assets, inspect README.md, AGENTS.md, metadata.json, and any rules/, resources/, or references/ folders. In this repository, the main signal is concentrated in SKILL.md, so you do not need to hunt through a large support tree.

Use the skill as a review checklist

For code generation, ask it to produce code plus a brief rationale for each pattern choice. For review, ask it to flag where mutability, implicit behavior, or unclear lifetime management weakens the design. If you are comparing options, ask for a recommended approach and a short tradeoff summary so dotnet-patterns usage stays focused on backend maintainability, not style preferences alone.

dotnet-patterns skill FAQ

Is dotnet-patterns only for backend work?

No, but its strongest fit is backend and service code. The dotnet-patterns guide is centered on C# application structure, so it is most valuable in ASP.NET Core, APIs, domain services, and shared libraries.

Does this replace ordinary prompts?

It improves them by adding consistent guardrails. A normal prompt can ask for “best practices,” but the dotnet-patterns skill gives you a reusable pattern lens: immutable data, explicit dependencies, and clear intent. That usually produces more predictable code and fewer follow-up corrections.

Is it beginner-friendly?

Yes, if you already know basic C# syntax. The skill is useful for beginners who need examples of what “good” .NET code looks like, but it assumes you are trying to build real application code, not learn C# from scratch.

When should I not use it?

Do not rely on it for UI-heavy guidance, non-.NET stacks, or highly experimental architecture where patterns are intentionally being bent. If your task is a throwaway script or a one-off migration, the added opinionation may be more than you need.

How to Improve dotnet-patterns skill

Give stronger code context

The best results come from showing the actual class, interface, or endpoint you want changed, plus the constraints that matter. Include framework version, whether the code is public API, and whether behavior must remain stable. dotnet-patterns is most effective when it can see the tradeoff surface instead of guessing.

Ask for the pattern you want, not just a fix

If you want immutability, say so. If you want explicit null handling, say that the refactor should prefer guard clauses and required members. If you want dotnet-patterns for Backend Development, specify the service boundary, DI style, and async expectations so the output stays aligned with the actual use case.

Watch for common failure modes

The most common issue is over-refactoring: the answer becomes “cleaner” but less practical for your codebase. Another failure mode is shallow pattern matching, where the response uses records or constructor injection without checking whether the object is really a value object, DTO, or long-lived service. Push back when the first draft ignores those distinctions.

Iterate with targeted follow-ups

After the first output, ask for one focused pass: “Reduce allocations,” “Keep public signatures unchanged,” “Add nullability annotations,” or “Make the service easier to test.” That kind of follow-up helps the dotnet-patterns skill produce smaller, more accurate improvements than a broad rewrite request.