🤖 Awesome GitHub Copilot Customizations

Enhance your GitHub Copilot experience with community-contributed instructions, prompts, and configurations. Get consistent AI assistance that follows your team's coding standards and project requirements.

🎯 GitHub Copilot Customization Features

GitHub Copilot provides three main ways to customize AI responses and tailor assistance to your specific workflows, team guidelines, and project requirements:

🔧 Custom Instructions	📝 Reusable Prompts	🧩 Custom Chat Modes
Define common guidelines for tasks like code generation, reviews, and commit messages. Describe how tasks should be performed Benefits: • Automatic inclusion in every chat request • Repository-wide consistency • Multiple implementation options	Create reusable, standalone prompts for specific tasks. Describe what should be done with optional task-specific guidelines Benefits: • Eliminate repetitive prompt writing • Shareable across teams • Support for variables and dependencies	Define chat behavior, available tools, and codebase interaction patterns within specific boundaries for each request Benefits: • Context-aware assistance • Tool configuration • Role-specific workflows

💡 Pro Tip: Custom instructions only affect Copilot Chat (not inline code completions). You can combine all three customization types - use custom instructions for general guidelines, prompt files for specific tasks, and chat modes to control the interaction context.

📝 Contributing

We welcome contributions! Please see our Contributing Guide for details on how to submit new instructions and prompts.

📋 Custom Instructions

Team and project-specific instructions to enhance GitHub Copilot's behavior for specific technologies and coding practices:

Title	Description	Install
Angular Development Instructions	Angular-specific coding standards and best practices
ASP.NET REST API Development	Guidelines for building REST APIs with ASP.NET
Azure Functions Typescript	TypeScript patterns for Azure Functions
Bicep Code Best Practices	Infrastructure as Code with Bicep
Blazor	Blazor component and application patterns
Cmake Vcpkg	C++ project configuration and package management
Copilot Process tracking Instructions	See process Copilot is following where you can edit this to reshape the interaction or save when follow up may be needed
C# Development	Guidelines for building C# applications
.NET MAUI	.NET MAUI component and application patterns
Genaiscript	AI-powered script generation guidelines
Generate Modern Terraform Code For Azure	Guidelines for generating modern Terraform code for Azure
Go Development Instructions	Instructions for writing Go code following idiomatic Go practices and community standards
Guidance for Localization	Guidelines for localizing markdown documents
Markdown	Documentation and content creation standards
Memory Bank	Bank specific coding standards and best practices
Next.js + Tailwind Development Instructions	Next.js + Tailwind development standards and instructions
Performance Optimization Best Practices	The most comprehensive, practical, and engineer-authored performance optimization instructions for all languages, frameworks, and stacks. Covers frontend, backend, and database best practices with actionable guidance, scenario-based checklists, troubleshooting, and pro tips.
PowerShell Cmdlet Development Guidelines	PowerShell cmdlet and scripting best practices based on Microsoft guidelines
Python Coding Conventions	Python coding conventions and guidelines
Quarkus	Quarkus development standards and instructions
Secure Coding and OWASP Guidelines	Comprehensive secure coding instructions for all languages and frameworks, based on OWASP Top 10 and industry best practices.
Taming Copilot	Prevent Copilot from wreaking havoc across your codebase, keeping it under control.
TanStack Start with Shadcn/ui Development Guide	Guidelines for building TanStack Start applications

💡 Usage: Copy these instructions to your .github/copilot-instructions.md file or create task-specific .github/.instructions.md files in your workspace's .github/instructions folder.

🎯 Reusable Prompts

Ready-to-use prompt templates for specific development scenarios and tasks, defining prompt text with a specific mode, model, and available set of tools.

Title	Description	Install
ASP.NET Minimal API with OpenAPI	Create ASP.NET Minimal API endpoints with proper OpenAPI documentation
Azure Cost Optimize	Analyze Azure resources used in the app (IaC files and/or resources in a target rg) and optimize costs - creating GitHub issues for identified optimizations.
Comment Code Generate A Tutorial	Transform this Python script into a polished, beginner-friendly project by refactoring the code, adding clear instructional comments, and generating a complete markdown tutorial.
Create Architectural Decision Record	Create an Architectural Decision Record (ADR) document for AI-optimized decision documentation.
Create GitHub Issue from Specification	Create GitHub Issue for feature request from specification file using feature_request.yml template.
Create GitHub Issue from Implementation Plan	Create GitHub Issues from implementation plan phases using feature_request.yml or chore_request.yml templates.
Create GitHub Issues for Unmet Specification Requirements	Create GitHub Issues for unimplemented requirements from specification files using feature_request.yml template.
Create Implementation Plan	Create a new implementation plan file for new features, refactoring existing code or upgrading packages, design, architecture or infrastructure.
Create LLMs.txt File from Repository Structure	Create an llms.txt file from scratch based on repository structure following the llms.txt specification at https://llmstxt.org/
Generate Standard OO Component Documentation	Create comprehensive, standardized documentation for object-oriented components following industry best practices and architectural documentation standards.
Create Specification	Create a new specification file for the solution, optimized for Generative AI consumption.
Create Spring Boot Java project prompt	Create Spring Boot Java project skeleton
Create Spring Boot Kotlin project prompt	Create Spring Boot Kotlin project skeleton
C# Async Programming Best Practices	Get best practices for C# async programming
C# Documentation Best Practices	Ensure that C# types are documented with XML comments and follow best practices for documentation.
MSTest Best Practices	Get best practices for MSTest unit testing, including data-driven tests
NUnit Best Practices	Get best practices for NUnit unit testing, including data-driven tests
XUnit Best Practices	Get best practices for XUnit unit testing, including data-driven tests
.NET/C# Best Practices	Ensure .NET/C# code meets best practices for the solution/project.
.NET/C# Design Pattern Review	Review the C#/.NET code for design pattern implementation and suggest improvements.
Entity Framework Core Best Practices	Get best practices for Entity Framework Core
Product Manager Assistant: Feature Identification and Specification	This workflow guides you through a systematic approach to identify missing features, prioritize them, and create detailed specifications for implementation.
Javascript Typescript Jest	Best practices for writing JavaScript/TypeScript tests using Jest, including mocking strategies, test structure, and common patterns.
Multi Stage Dockerfile	Create optimized multi-stage Dockerfiles for any language or framework
My Issues	List my issues in the current repository
My Pull Requests	List my pull requests in the current repository
Next Intl Add Language	Add new language to a Next.js + next-intl application
Suggest Awesome GitHub Copilot Chatmodes	Suggest relevant GitHub Copilot chatmode files from the awesome-copilot repository based on current repository context and chat history, avoiding duplicates with existing chatmodes in this repository.
Suggest Awesome GitHub Copilot Prompts	Suggest relevant GitHub Copilot prompt files from the awesome-copilot repository based on current repository context and chat history, avoiding duplicates with existing prompts in this repository.
Update Azure Verified Modules in Bicep Files	Update Azure Verified Modules (AVM) to latest versions in Bicep files.
Update Implementation Plan	Update an existing implementation plan file with new or update requirements to provide new features, refactoring existing code or upgrading packages, design, architecture or infrastructure.
Update LLMs.txt File	Update the llms.txt file in the root folder to reflect changes in documentation or specifications following the llms.txt specification at https://llmstxt.org/
Update Markdown File Index	Update a markdown file section with an index/table of files from a specified folder.
Update Standard OO Component Documentation	Update existing object-oriented component documentation following industry best practices and architectural documentation standards.
Update Specification	Update an existing specification file for the solution, optimized for Generative AI consumption based on new requirements or updates to any existing code.

💡 Usage: Use /prompt-name in VS Code chat, run Chat: Run Prompt command, or hit the run button while you have a prompt open.

🧩 Custom Chat Modes

Custom chat modes define specific behaviors and tools for GitHub Copilot Chat, enabling enhanced context-aware assistance for particular tasks or workflows.

Title	Description	Install
4.1 Beast Mode	A custom prompt to get GPT 4.1 to behave like a top-notch coding agent.
Debug Mode Instructions	Debug your application to find and fix a bug
Plan Mode - Strategic Planning & Architecture Assistant	Strategic planning and architecture assistant focused on thoughtful analysis before implementation. Helps developers understand codebases, clarify requirements, and develop comprehensive implementation strategies.
Planning mode instructions	Generate an implementation plan for new features or refactoring existing code.
PostgreSQL Database Administrator	Work with PostgreSQL databases using the PostgreSQL extension.
Create PRD Chat Mode	Generate a comprehensive Product Requirements Document (PRD) in Markdown, detailing user stories, acceptance criteria, technical considerations, and metrics. Optionally create GitHub issues upon user confirmation.
Prompt Engineer	A specialized chat mode for analyzing and improving prompts. Every user input is treated as a propt to be improved. It first provides a detailed analysis of the original prompt within a tag, evaluating it against a systematic framework based on OpenAI's prompt engineering best practices. Following the analysis, it generates a new, improved prompt.
Refine Requirement or Issue Chat Mode	Refine the requirement or issue with Acceptance Criteria, Technical Considerations, Edge Cases, and NFRs

💡 Usage: Create new chat modes using the command Chat: Configure Chat Modes..., then switch your chat mode in the Chat input from Agent or Ask to your own mode.

📚 Additional Resources

• VS Code Copilot Customization Documentation - Official Microsoft documentation
• GitHub Copilot Chat Documentation - Complete chat feature guide
• Custom Chat Modes - Advanced chat configuration
• VS Code Settings - General VS Code configuration guide

🛠️ Development Configuration

This repository uses various configuration files to ensure consistent code style and avoid issues with line endings:

• .editorconfig - Defines coding styles across different editors and IDEs
• .gitattributes - Ensures consistent line endings in text files
• .vscode/settings.json - VS Code-specific settings for this repository
• .vscode/extensions.json - Recommended VS Code extensions

💡 Note: All markdown files in this repository use LF line endings (Unix-style) to avoid mixed line endings issues. The repository is configured to automatically handle line endings conversion.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🤝 Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

™️ Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.