Dotnet Design Pattern Review Skill for Claude Code

A review skill that has your agent check C# and .NET code against a fixed list of design patterns and suggest improvements.

Installs: 11.7K; on skills.sh
Stars: 40.7K; on GitHub
Updated: Oct 2026; last repo commit

This skill asks your agent for a review of C#/.NET code, not a rewrite. SKILL.md says: "Do not make any changes to the code, just provide a review." The agent compares the code with a list of six required patterns: Command, Factory, Dependency Injection, Repository, Provider and Resource.

It then walks a 12-item checklist that covers architecture, .NET practices, SOLID, performance, testability, security and clarity. SKILL.md ends by asking for "specific, actionable recommendations". The patterns reflect one project style, such as CommandHandler<TOptions> and ResourceManager for messages, so expect findings against code that uses other conventions. The file reviews ${selection}, a placeholder from GitHub Copilot prompts, so name the file or code you want reviewed.

Good for

C# developers who want a design review of a file or project
Teams whose code follows command-handler, factory and repository patterns
Reviewers who want advice only, with no automatic edits

Install dotnet-design-pattern-review

Claude Code

Copy this prompt.

Install the dotnet-design-pattern-review skill in Claude Code. Run this command:

npx skills add https://github.com/github/awesome-copilot --skill dotnet-design-pattern-review

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

Requires Node.js.

From its listing on skills.sh. Source.

What's in the skill

When it loads

Review the C#/.NET code for design pattern implementation and suggest improvements.

Sections in SKILL.md

Required Design Patterns
Review Checklist
Improvement Focus Areas

Key facts

Author: GitHub (github/awesome-copilot, a community collection)
Repo: github/awesome-copilot, folder skills/dotnet-design-pattern-review
Installs on skills.sh: 11,659 as of 2026-11-02
GitHub stars: 40,666 for the whole github/awesome-copilot repo, 2026-11-02
License: MIT
Last repo commit: 2026-10-30
What is inside: 1 file: SKILL.md
Source: The awesome-copilot README calls the repo a community-created collection and says its contents come from third-party developers

What it includes

Six patterns the code is expected to follow.
Command, Factory, Dependency Injection, Repository, Provider and Resource patterns, each with specific conventions such as primary constructors and separate .resx files.
Read · Required design patterns
Twelve questions applied to the code.
Design patterns, architecture, .NET best practices, GoF patterns, SOLID, performance, maintainability, testability, security, documentation, code clarity and clean code.
Read · Review checklist
Five places to look for fixes.
Command handlers, factories, providers, configuration and AI/ML integration with Semantic Kernel.
Read · Improvement focus areas
The skill says to make no code changes.
The output is a written review with recommendations.
Read · Review only

From the official docs

Questions

What does the dotnet-design-pattern-review skill do?

It has your agent review C#/.NET code for design pattern use and suggest improvements. It checks the code against six required patterns and a 12-item checklist.

How do I install it?

Use the install box at the top of this page. The awesome-copilot README documents plugin installs for Copilot CLI, not a command for this single skill.

Will it edit my code?

SKILL.md tells the agent not to change code and only provide a review.

Does it work with any C# project?

It reviews any C# code, but the pattern list is specific. It expects command handlers, factories, repositories and providers, and resource files for messages, so code built another way will get findings against that list.

Is it safe to use?

The folder holds one SKILL.md and no scripts, and the skill says not to edit code. The agent still reads the code you point it at and sends it to your AI provider.

Does it need an API key?

SKILL.md names no API key or tool.

Information

updated Nov 2, 2026

Repository: github/awesome-copilot
Folder: skills/dotnet-design-pattern-review

github/awesome-copilot skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 1

https://github.com/github/awesome-copilot/blob/HEAD/skills/dotnet-design-pattern-review/SKILL.md · github.com