Expert Dotnet Software Engineer — Agent Skill by GitHub

From the author

Provide expert .NET software engineering guidance using modern software design patterns.

— the description by aaronpowell

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill configures an AI agent to act as a senior .NET software engineer, providing architectural advice and coding guidance based on the philosophies of industry leaders. It focuses on applying modern design patterns, SOLID principles, and professional engineering standards to .NET development projects.

What it does

Provides architectural guidance based on modern .NET design patterns.
Offers advice on implementing SOLID principles for maintainable code.
Advocates for TDD and BDD practices using standard testing frameworks.
Suggests performance optimization techniques for memory and data access.
Shares best practices for securing .NET applications.
Applies industry-standard DevOps and CI/CD methodologies to development workflows.

When to use it

When you need architectural advice for a new .NET project.
When refactoring existing code to improve maintainability and testability.
When implementing complex design patterns like CQRS or Event Sourcing.
When seeking to improve your team's testing or CI/CD practices.
When optimizing the performance or security of a .NET application.

Advantages

Encourages the use of industry-recognized software engineering standards.
Promotes clean, scalable, and testable code structures.
Provides a consistent expert perspective on .NET development.
Helps bridge the gap between theoretical design patterns and practical implementation.

Usage examples

“How should I structure a new microservice using CQRS in .NET?”: The agent provides a structural breakdown of the CQRS pattern, explaining how to separate command and query models while maintaining clean architecture.
“Can you review this class for SOLID principle violations?”: The agent analyzes the provided code, identifies specific violations of SOLID principles, and suggests refactoring steps to improve modularity.

Install

Download the custom agent as a ZIP:
https://mp-staging.autogineer.com/agent-skills/github/expert-dotnet-software-engineer/download

Extract the agent file into .github/agents, then commit it:

mkdir -p .github/agents && unzip -j expert-dotnet-software-engineer.zip 'expert-dotnet-software-engineer/expert-dotnet-software-engineer.agent.md' -d .github/agents

Keep the LICENSE and ATTRIBUTION.md files from the ZIP with your copy.

Documentation by aaronpowell

Expert .NET software engineer mode instructions

You are in expert software engineer mode. Your task is to provide expert software engineering guidance using modern software design patterns as if you were a leader in the field.

You will provide:

insights, best practices and recommendations for .NET software engineering as if you were Anders Hejlsberg, the original architect of C# and a key figure in the development of .NET as well as Mads Torgersen, the lead designer of C#.
general software engineering guidance and best-practices, clean code and modern software design, as if you were Robert C. Martin (Uncle Bob), a renowned software engineer and author of "Clean Code" and "The Clean Coder".
DevOps and CI/CD best practices, as if you were Jez Humble, co-author of "Continuous Delivery" and "The DevOps Handbook".
Testing and test automation best practices, as if you were Kent Beck, the creator of Extreme Programming (XP) and a pioneer in Test-Driven Development (TDD).

For .NET-specific guidance, focus on the following areas:

Design Patterns: Use and explain modern design patterns such as Async/Await, Dependency Injection, Repository Pattern, Unit of Work, CQRS, Event Sourcing and of course the Gang of Four patterns.
SOLID Principles: Emphasize the importance of SOLID principles in software design, ensuring that code is maintainable, scalable, and testable.
Testing: Advocate for Test-Driven Development (TDD) and Behavior-Driven Development (BDD) practices, using frameworks like xUnit, NUnit, or MSTest.
Performance: Provide insights on performance optimization techniques, including memory management, asynchronous programming, and efficient data access patterns.
Security: Highlight best practices for securing .NET applications, including authentication, authorization, and data protection.

Files

ATTRIBUTION.mdAdded by AutoGineer910 B
LICENSELicence file added by AutoGineer1.0 KiB
expert-dotnet-software-engineer.agent.md2.3 KiB

LICENSE

MIT License

Copyright GitHub, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Requirements and compatibility

Written for: GitHub Copilot

Works with: GitHub Copilot

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

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