🤖 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
AI Prompt Engineering & Safety Best Practices	Comprehensive best practices for AI prompt engineering, safety frameworks, bias mitigation, and responsible AI usage for Copilot and LLMs.
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
Containerization & Docker Best Practices	Comprehensive best practices for creating optimized, secure, and efficient Docker images and managing containers. Covers multi-stage builds, image layer optimization, security scanning, and runtime best practices.
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
DevOps Core Principles	Foundational instructions covering core DevOps principles, culture (CALMS), and key metrics (DORA) to guide GitHub Copilot in understanding and promoting effective software delivery.
DDD Systems & .NET Guidelines	DDD and .NET architecture guidelines
.NET MAUI	.NET MAUI component and application patterns
Dotnet Wpf	.NET WPF component and application patterns
Genaiscript	AI-powered script generation guidelines
Generate Modern Terraform Code For Azure	Guidelines for generating modern Terraform code for Azure
Gilfoyle Code Review Instructions	Gilfoyle-style code review instructions that channel the sardonic technical supremacy of Silicon Valley's most arrogant systems architect.
GitHub Actions CI/CD Best Practices	Comprehensive guide for building robust, secure, and efficient CI/CD pipelines using GitHub Actions. Covers workflow structure, jobs, steps, environment variables, secret management, caching, matrix strategies, testing, and deployment strategies.
Go Development Instructions	Instructions for writing Go code following idiomatic Go practices and community standards
Java Development	Guidelines for building Java base applications
Joyride User Script Project Assistant	Expert assistance for Joyride User Script projects - REPL-driven ClojureScript and user space automation of VS Code
Joyride Workspace Automation Assistant	Expert assistance for Joyride Workspace automation - REPL-driven and user space ClojureScript automation within specific VS Code workspaces
Kubernetes Deployment Best Practices	Comprehensive best practices for deploying and managing applications on Kubernetes. Covers Pods, Deployments, Services, Ingress, ConfigMaps, Secrets, health checks, resource limits, scaling, and security contexts.
Guidance for Localization	Guidelines for localizing markdown documents
Markdown	Documentation and content creation standards
Memory Bank	Bank specific coding standards and best practices
MS-SQL DBA Chat Mode Instructions	Instructions for customizing GitHub Copilot behavior for MS-SQL DBA chat mode.
Next.js + Tailwind Development Instructions	Next.js + Tailwind development standards and instructions
Next.js Best Practices for LLMs (2025)	(2025) specific coding standards and best practices
Code Generation Guidelines	Guidelines for writing Node.js and JavaScript code with Vitest testing
Object Calisthenics Rules	Enforces Object Calisthenics principles for business domain code to ensure clean, maintainable, and robust code
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.
Playwright Typescript	Playwright test generation instructions
Power Platform Connectors Schema Development Instructions	Comprehensive development guidelines for Power Platform Custom Connectors using JSON Schema definitions. Covers API definitions (Swagger 2.0), API properties, and settings configuration with Microsoft extensions.
PowerShell Pester v5 Testing Guidelines	PowerShell Pester testing best practices based on Pester v5 conventions
PowerShell Cmdlet Development Guidelines	PowerShell cmdlet and scripting best practices based on Microsoft guidelines
Python Coding Conventions	Python coding conventions and guidelines
Quarkus MCP Server	Quarkus and MCP Server with HTTP SSE transport development standards and instructions
Quarkus	Quarkus development standards and instructions
ReactJS Development Instructions	ReactJS development standards and best practices
Ruby on Rails	Ruby on Rails coding conventions and guidelines
Secure Coding and OWASP Guidelines	Comprehensive secure coding instructions for all languages and frameworks, based on OWASP Top 10 and industry best practices.
Self-explanatory Code Commenting Instructions	Guidelines for GitHub Copilot to write comments to achieve self-explanatory code with less comments. Examples are in JavaScript but it should work on any language that has comments.
Spec Driven Workflow v1	Specification-Driven Workflow v1 provides a structured approach to software development, ensuring that requirements are clearly defined, designs are meticulously planned, and implementations are thoroughly documented and validated.
Spring Boot Development	Guidelines for building Spring Boot base applications
SQL Development	Guidelines for generating SQL statements and stored procedures
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
VueJS 3 Development Instructions	VueJS 3 development standards and best practices with Composition API and TypeScript

💡 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
AI Prompt Engineering Safety Review & Improvement	Comprehensive AI prompt engineering safety review and improvement prompt. Analyzes prompts for safety, bias, security vulnerabilities, and effectiveness while providing detailed improvement recommendations with extensive frameworks, testing methodologies, and educational content.
Comprehensive Project Architecture Blueprint Generator	Comprehensive project architecture blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks and architectural patterns, generates visual diagrams, documents implementation patterns, and provides extensible blueprints for maintaining architectural consistency and guiding new development.
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.
Azure Resource Health & Issue Diagnosis	Analyze Azure resource health, diagnose issues from logs and telemetry, and create a remediation plan for identified problems.
Code Exemplars Blueprint Generator	Technology-agnostic prompt generator that creates customizable AI prompts for scanning codebases and identifying high-quality code exemplars. Supports multiple programming languages (.NET, Java, JavaScript, TypeScript, React, Angular, Python) with configurable analysis depth, categorization methods, and documentation formats to establish coding standards and maintain consistency across development teams.
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.
Copilot Instructions Blueprint Generator	Technology-agnostic blueprint generator for creating comprehensive copilot-instructions.md files that guide GitHub Copilot to produce code consistent with project standards, architecture patterns, and exact technology versions by analyzing existing codebase patterns and avoiding assumptions.
Create Architectural Decision Record	Create an Architectural Decision Record (ADR) document for AI-optimized decision documentation.
Create GitHub Actions Workflow Specification	Create a formal specification for an existing GitHub Actions CI/CD workflow, optimized for AI consumption and workflow maintenance.
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 Readme	Create a README.md file for the project
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
TUnit Best Practices	Get best practices for TUnit 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
Project Folder Structure Blueprint Generator	Comprehensive technology-agnostic prompt for analyzing and documenting project folder structures. Auto-detects project types (.NET, Java, React, Angular, Python, Node.js, Flutter), generates detailed blueprints with visualization options, naming conventions, file placement patterns, and extension templates for maintaining consistent code organization across diverse technology stacks.
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.
Java Documentation (Javadoc) Best Practices	Ensure that Java types are documented with Javadoc comments and follow best practices for documentation.
JUnit 5+ Best Practices	Get best practices for JUnit 5 unit testing, including data-driven tests
Spring Boot Best Practices	Get best practices for developing applications with Spring Boot.
Javascript Typescript Jest	Best practices for writing JavaScript/TypeScript tests using Jest, including mocking strategies, test structure, and common patterns.
Spring Boot with Kotlin Best Practices	Get best practices for developing applications with Spring Boot and Kotlin.
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
PostgreSQL Code Review Assistant	PostgreSQL-specific code review assistant focusing on PostgreSQL best practices, anti-patterns, and unique quality standards. Covers JSONB operations, array usage, custom types, schema design, function optimization, and PostgreSQL-exclusive security features like Row Level Security (RLS).
PostgreSQL Development Assistant	PostgreSQL-specific development assistant focusing on unique PostgreSQL features, advanced data types, and PostgreSQL-exclusive capabilities. Covers JSONB operations, array types, custom types, range/geometric types, full-text search, window functions, and PostgreSQL extensions ecosystem.
Project Workflow Documentation Generator	Comprehensive technology-agnostic prompt generator for documenting end-to-end application workflows. Automatically detects project architecture patterns, technology stacks, and data flow patterns to generate detailed implementation blueprints covering entry points, service layers, data access, error handling, and testing approaches across multiple technologies including .NET, Java/Spring, React, and microservices architectures.
README Generator Prompt	Intelligent README.md generation prompt that analyzes project documentation structure and creates comprehensive repository documentation. Scans .github/copilot directory files and copilot-instructions.md to extract project information, technology stack, architecture, development workflow, coding standards, and testing approaches while generating well-structured markdown documentation with proper formatting, cross-references, and developer-focused content.
Review And Refactor	Review and refactor code in your project according to defined instructions
SQL Code Review	Universal SQL code review assistant that performs comprehensive security, maintainability, and code quality analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Focuses on SQL injection prevention, access control, code standards, and anti-pattern detection. Complements SQL optimization prompt for complete development coverage.
SQL Performance Optimization Assistant	Universal SQL performance optimization assistant for comprehensive query tuning, indexing strategies, and database performance analysis across all SQL databases (MySQL, PostgreSQL, SQL Server, Oracle). Provides execution plan analysis, pagination optimization, batch operations, and performance monitoring guidance.
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.
Comprehensive Technology Stack Blueprint Generator	Comprehensive technology stack blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks, programming languages, and implementation patterns across multiple platforms (.NET, Java, JavaScript, React, Python). Generates configurable blueprints with version information, licensing details, usage patterns, coding conventions, and visual diagrams. Provides implementation-ready templates and maintains architectural consistency for guided development.
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 (VS Code v1.102)	GPT 4.1 as a top-notch coding agent.
Accessibility mode	Accessibility mode.
API Architect mode instructions	Your role is that of an API architect. Help mentor the engineer by providing guidance, support, and working code.
Azure Principal Architect mode instructions	Provide expert Azure Principal Architect guidance using Azure Well-Architected Framework principles and Microsoft best practices.
Azure SaaS Architect mode instructions	Provide expert Azure SaaS Architect guidance focusing on multitenant applications using Azure Well-Architected SaaS principles and Microsoft best practices.
Azure AVM Bicep mode	Create, update, or review Azure IaC in Bicep using Azure Verified Modules (AVM).
Azure AVM Terraform mode	Create, update, or review Azure IaC in Terraform using Azure Verified Modules (AVM).
Clojure Interactive Programming with Backseat Driver	Expert Clojure pair programmer with REPL-first methodology, architectural oversight, and interactive problem-solving. Enforces quality standards, prevents workarounds, and develops solutions incrementally through live REPL evaluation before file modifications.
Critical thinking mode instructions	Challenge assumptions and encourage critical thinking to ensure the best possible solution and outcomes.
C#/.NET Janitor	Perform janitorial tasks on C#/.NET code including cleanup, modernization, and tech debt remediation.
Debug Mode Instructions	Debug your application to find and fix a bug
Demonstrate Understanding mode instructions	Validate user understanding of code, design patterns, and implementation details through guided questioning.
Electron Code Review Mode Instructions	Code Review Mode tailored for Electron app with Node.js backend (main), Angular frontend (render), and native integration layer (e.g., AppleScript, shell, or native tooling). Services in other repos are not reviewed here.
Expert .NET software engineer mode instructions	Provide expert .NET software engineering guidance using modern software design patterns.
Expert React Frontend Engineer Mode Instructions	Provide expert React frontend engineering guidance using modern TypeScript and design patterns.
Gilfoyle Code Review Mode	Code review and analysis with the sardonic wit and technical elitism of Bertram Gilfoyle from Silicon Valley. Prepare for brutal honesty about your code.
Implementation Plan Generation Mode	Generate an implementation plan for new features or refactoring existing code.
Universal Janitor	Perform janitorial tasks on any codebase including cleanup, simplification, and tech debt remediation.
Mentor mode instructions	Help mentor the engineer by providing guidance and support.
Meta Agentic Project Scaffold	Meta agentic project creation assistant to help users create and manage project workflows effectively.
Microsoft Learn Contributor	Microsoft Learn Contributor chatmode for editing and writing Microsoft Learn documentation following Microsoft Writing Style Guide and authoring best practices.
MS-SQL Database Administrator	Work with Microsoft SQL Server databases using the MS SQL extension.
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.
Principal software engineer mode instructions	Provide principal-level software engineering guidance with focus on engineering excellence, technical leadership, and pragmatic implementation.
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
Rust Beast Mode	Rust GPT-4.1 Coding Beast Mode for VS Code
Semantic Kernel .NET mode instructions	Create, update, refactor, explain or work with code using the .NET version of Semantic Kernel.
Semantic Kernel Python mode instructions	Create, update, refactor, explain or work with code using the Python version of Semantic Kernel.
Idea Generator mode instructions	Brainstorm and develop new application ideas through fun, interactive questioning until ready for specification creation.
Software Engineer Agent v1	Expert-level software engineering agent. Deliver production-ready, maintainable code. Execute systematically and specification-driven. Document comprehensively. Operate autonomously and adaptively.
Specification mode instructions	Generate or update specification documents for new or existing functionality.
TDD Green Phase - Make Tests Pass Quickly	Implement minimal code to satisfy GitHub issue requirements and make failing tests pass without over-engineering.
TDD Red Phase - Write Failing Tests First	Guide test-first development by writing failing tests that describe desired behaviour from GitHub issue context before implementation exists.
TDD Refactor Phase - Improve Quality & Security	Improve code quality, apply security best practices, and enhance design whilst maintaining green tests and GitHub issue compliance.
Technical Debt Remediation Plan	Generate technical debt remediation plans for code, tests, and documentation.
voidBeast_GPT41Enhanced 1.0 - Elite Developer AI Assistant	4.1 voidBeast_GPT41Enhanced 1.0 : a advanced autonomous developer agent, designed for elite full-stack development with enhanced multi-mode capabilities. This latest evolution features sophisticated mode detection, comprehensive research capabilities, and never-ending problem resolution. Plan/Act/Deep Research/Analyzer/Checkpoints(Memory)/Prompt Generator Modes.
Wg Code Alchemist	Ask WG Code Alchemist to transform your code with Clean Code principles and SOLID design
Wg Code Sentinel	Ask WG Code Sentinel to review your code for security issues.

💡 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.