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CLAUDE.md for .NET 10

Introduction

With the evolution of modern development practices, integrating AI-assisted workflows into software projects has become increasingly important. One such emerging convention is the use of a CLAUDE.md file — a structured document designed to guide AI tools (like Claude or other coding assistants) in understanding your project.

In the context of .NET 10, this becomes especially powerful, enabling better code generation, consistent architecture, and improved developer productivity.

What is CLAUDE.md?

CLAUDE.md is a project-level markdown file that provides:

  • Context about your application

  • Coding standards and conventions

  • Architecture guidelines

  • Instructions for AI tools

Think of it as a README for AI, not just humans.

Why Use CLAUDE.md in .NET 10?

.NET 10 introduces enhanced performance, modern APIs, and improved tooling. When combined with AI-assisted development, a well-defined CLAUDE.md file helps:

  • Maintain consistency across large codebases

  • Reduce onboarding time for new developers

  • Improve AI-generated code accuracy

  • Enforce architectural patterns (e.g., Clean Architecture, DDD)

Recommended Structure of CLAUDE.md

Here’s a practical structure tailored for a .NET 10 project:

1. Project Overview

## Project Overview This is an ASP.NET Core (.NET 10) web application for managing recharge services. It follows Clean Architecture with separate layers for API, Application, Domain, and Infrastructure.

2. Tech Stack

## Tech Stack 
- .NET 10 (ASP.NET Core MVC / Web API) 
- Entity Framework Core - SQL Server 
- Redis (for caching) - Serilog (logging)

3. Architecture Guidelines

## Architecture 
- Follow Clean Architecture principles 
- Use Repository + Unit of Work pattern 
- Keep controllers thin 
- Business logic must be in Application layer

4. Coding Standards

## Coding Standards 
- Use PascalCase for class names 
- Use camelCase for variables 
- Async methods must end with 'Async' 
- Avoid hardcoded values, use configuration

5. Folder Structure

## Folder Structure 
- /API → Controllers - /Application → Business logic 
- /Domain → Entities & Interfaces - /Infrastructure → DB & external services

6. Database Rules

## Database 
- Use EF Core with Code First 
- All tables must have CreatedDate and UpdatedDate 
- Use proper indexing for performance

7. API Guidelines

## API Guidelines 
- Use RESTful conventions 
- Always return standard response format: { success, message, data } - Use proper HTTP status codes

8. AI Instructions

## AI Instructions 
- Do not generate business logic in controllers 
- Always follow repository pattern 
- Prefer async/await 
- Validate input models properly

Best Practices

  • Keep CLAUDE.md updated as the project evolves

  • Be specific — vague instructions reduce AI effectiveness

  • Include examples wherever possible

  • Align it with your team’s coding guidelines

Example Use Case

When using AI tools:

Instead of writing:

"Create an API for employee"

With CLAUDE.md, AI understands:

  • Architecture pattern

  • Naming conventions

  • Response structure

Result: Production-ready code instead of raw scaffolding

Conclusion

CLAUDE.md is becoming an essential part of modern AI-assisted development. In a .NET 10 ecosystem, it acts as a bridge between human intent and machine-generated code.

By investing time in writing a clear and structured CLAUDE.md, you ensure:

  • Cleaner code

  • Faster development

  • Better collaboration between developers and AI

Final Tip

Treat CLAUDE.md as a living document — update it whenever your architecture, standards, or tools change.

Because the better your instructions… the better your code.

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