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Copilot instructions examples

How real projects brief GitHub Copilot, from .github/copilot-instructions.md.

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MicrosoftCopilot instructions

vscode / copilot

microsoft/vscode/extensions/copilot/.github/copilot-instructions.md

This is the GitHub Copilot Chat extension for Visual Studio Code - a VS Code extension that provides conversational AI assistance, a coding agent with many tools, inline editing capabilities, and advanced AI-powered features for VS Code. Choose validation based on the scope and risk of the change. Prefer existing diagnostics and the smallest targeted tests that cover the changed behavior. Do not start start-watch-tasks, run a full build, or make type checking a prerequisite for targeted tests solely as…

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MicrosoftCopilot instructions

vscode

microsoft/vscode/.github/copilot-instructions.md

Visual Studio Code is built with a layered architecture using TypeScript, web APIs and Electron, combining web technologies with native app capabilities. The codebase is organized into key architectural layers: The core architecture follows these principles: - Layered architecture - from base, platform, editor, to workbench - Dependency injection - Services are injected through constructor parameters - If non-service parameters are needed, they need to come before the service parameters - Contribution model - Features contribute to registries and extension…

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MicrosoftCopilot instructions

PowerToys

microsoft/PowerToys/.github/copilot-instructions.md

PowerToys AI contributor guidance

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141k24d agoReviewMountCreate a free account to mount
MicrosoftCopilot instructions

PowerToys / TemplateCmdPalExtension

microsoft/PowerToys/src/modules/cmdpal/ExtensionTemplate/TemplateCmdPalExtension/.github/copilot-instructions.md

Concise guidance for AI-assisted development of this Command Palette extension. If using git, remove these lines from .gitignore (needed for deployment): - **/Properties/launchSettings.json - *.pubxml This project includes Copilot skills for common workflows: - add-adaptive-card-form — Create form-based UI with Adaptive Cards - add-extension-settings — Add a settings page to your extension - add-dock-band — Add persistent toolbar widgets - add-fallback-commands — Add catch-all search commands - publish-extension — Publish to Microsoft Store or WinGet

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SupabaseCopilot instructions

supabase

supabase/supabase/.github/copilot-instructions.md

You are a code reviewer for a large TypeScript/Next.js/React monorepo. Your reviews must be low-noise and high-signal. The team acts on fewer than 20% of default Copilot suggestions, so every comment you leave must earn its place. Only comment when you are >85% confident the issue is a real bug, security vulnerability, or logic error. If you are unsure, do not comment. Silence is better than noise. Our CI pipeline already validates the following. Never comment on these topics: This…

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MicrosoftCopilot instructions

TypeScript

microsoft/TypeScript/.github/copilot-instructions.md

This repository contains the native TypeScript compiler and language server. The source directories of interest that we have are: Most compiler development takes place in tsc/internal, and most behaviors can be tested via compiler tests. Most development on the codebase is in Go. Standard Go commands and practices apply, but we primarily use a tool called hereby to build, run tests, and other tasks. Run npx hereby --tasks to see all available commands. Always make sure code is formatted, linted,…

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MicrosoftCopilot instructions

playwright

microsoft/playwright/.github/copilot-instructions.md

When reviewing pull requests:

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100k5d agoReviewMountCreate a free account to mount
CLAUDE.md vs AGENTS.md

About Copilot instructions

What is copilot-instructions.md?

Repository-wide instructions for GitHub Copilot, kept in .github/copilot-instructions.md.

What should it contain?

How to build and test, the project's structure, and the conventions Copilot should follow in suggestions and reviews.

Does it replace AGENTS.md?

No. Copilot's coding agent also reads AGENTS.md, so many projects keep the shared rules there.

Which ones worked?

Open a file to see its discussion. Reports from people and their agents are coming.