+

GitHub Copilot in Visual Studio

Your AI Pair Programmer

From autocomplete to autonomous agent — the complete AI-powered coding experience inside Visual Studio

1M+
Developers Using Copilot
55%
Faster Task Completion
FREE
Tier Available
Industry Shift

The Rise of Agentic Development

We're living through the fastest evolution in developer tooling history

📈 The Trajectory

2021-2022
Autocomplete — Single-line suggestions
2023-2024
Chat Integration — Conversational AI in IDE
2024-2025
Agentic Era — Multi-file edits, self-correction
2025+
Autonomous Agents — Plan & execute independently

🚀 GitHub's Pace

200+
Changelog updates in 2024-2025
4/week
Average major feature releases
Weekly
New capabilities shipping
The question isn't if you'll use AI coding tools — it's how effectively

The GitHub Copilot Ecosystem

More than just IDE autocomplete — a complete AI-powered development platform

🤖

GitHub Coding Agent

Fully autonomous — assign issues directly to Copilot. It plans, codes, tests, and opens PRs while you focus on other work.

NEW: Works on GitHub Issues
⌨️

GitHub Copilot CLI

Terminal-native agent — agentic coding from your command line. Multi-file edits, bash commands, full project context.

🔥 TRENDING: Power user favorite
💻

Copilot in IDEs

Embedded experience — completions, chat, agent mode, code review — all inside your favorite editor.

6+ IDEs: VS, VS Code, JetBrains...
GitHub.com — PR reviews, issue comments
GitHub Mobile — Code on the go
Copilot Extensions — 3rd party integrations

Copilot in Every Major IDE

Same AI, consistent experience — wherever your team works

🔷

VS Code

Agent Mode ✓ | Chat ✓ | NES ✓
Custom Agents ✓ | Extensions ✓
Most feature-complete

💎

Visual Studio

Agent Mode ✓ | Chat ✓ | NES ✓
Code Review ✓ | MCP ✓ | BYOK ✓
Today's Focus →

🧠

JetBrains

Agent Mode ✓ | Chat ✓ | NES ✓
Code Review ✓ | MCP ✓
IntelliJ, PyCharm, WebStorm...

🍎

Xcode

Agent Mode ✓ | Chat ✓
Code Review ✓ | MCP ✓
Swift/Objective-C

☀️

Eclipse

Agent Mode ✓ | Chat ✓
Vision ✓ | MCP ✓
Java enterprise

⌨️

Vim / Neovim

Code Completion ✓
Lightweight integration
Terminal workflows

Visual Studio is just one entry point — same subscription unlocks the entire ecosystem

GitHub Copilot in Visual Studio

Five integrated systems working together

⚡

Inline Completions

Ghost text suggestions as you type — from single tokens to entire methods. Accept with Tab, partial accept word-by-word.

🔮

Next Edit Suggestions

Predicts your next edit location. Rename cascades, pattern fixes — Tab through related changes automatically.

💬

Copilot Chat

Ask questions, explain code, generate tests, fix errors. Slash commands (/explain, /fix, /tests) for common tasks.

🤖

Agent Mode

Autonomous coding partner. Multi-file edits, terminal commands, error self-correction — all from a single prompt.

🔌

MCP Servers

Connect external tools: GitHub, Azure DevOps, databases, Playwright. Extend Copilot beyond code.

Inline Completions

The foundation — intelligent code suggestions as you type

// Calculate the monthly payment for a loan using amortization
// Accounts for compound interest, returns payment rounded to 2 decimals
public decimal CalculateMonthlyPayment(
    decimal principal, decimal annualRate, int termMonths)
{
    // 🤖 Copilot generates implementation from your comments
}
Action Shortcut
Accept entire suggestion Tab
Accept word-by-word Ctrl + →
Cycle through alternatives Alt + . / Alt + ,
Dismiss suggestion Esc

Copilot Chat: Your AI Assistant

Conversational AI with powerful slash commands and context control

Slash Commands

  • 📖
    /explain — Explain selected code or symbols
  • 🔧
    /fix — Propose fixes for errors & warnings
  • 🧪
    /tests — Generate unit tests
  • 📝
    /doc — Generate XML documentation
  • ⚡
    /optimize — Performance analysis

Built-in @Agents

  • 🔍
    @workspace — Search entire solution
  • 🐛
    @Debugger — Access runtime state
  • 📊
    @Profiler — Analyze performance
  • 🚀
    @Modernize — Upgrade .NET versions
  • ⚙️
    @VS — Visual Studio help
Game Changer

Agent Mode: Autonomous Coding

Switch from "Ask" to "Agent" and Copilot becomes your autonomous pair programmer

🗂️

Multi-File Edits

Creates, modifies, and deletes files across your entire solution

💻

Terminal Commands

Runs dotnet build, dotnet test, npm install — with your approval

🔄

Self-Correction

Detects build errors and test failures, automatically iterates until fixed

Example prompt:

"Add input validation with FluentValidation to all public API
endpoints in the Controllers folder, and generate xUnit tests
for each validator"

→ Agent finds files, generates validators, updates controllers,
   creates tests, runs build, fixes any compile errors automatically

Custom Instructions & Prompt Files

Teach Copilot your team's standards — once

.github/copilot-instructions.md

## Project Conventions
- Use PascalCase for public members
- All public methods require XML docs
- Use async/await for I/O operations
- Prefer records for DTOs
- Target .NET 9 with nullable types
- Use FluentValidation for inputs
- Use Serilog for structured logging

.github/prompts/*.prompt.md

# new-api-endpoint.prompt.md

Generate a new API endpoint with:
- FluentValidation request validator
- MediatR handler with Serilog logging
- Unit tests using xUnit + NSubstitute
- OpenAPI attributes for Swagger

Reference: #prompt:new-api-endpoint

Result: Junior developers using #prompt:new-api-endpoint produce the same quality as staff engineers

Choose Your Model

Different AI models for different tasks — select from the model picker

🟢

GPT-4.1 / GPT-5

Default for most coding tasks. Strong code generation and completions.

🟣

Claude Sonnet/Opus

Excellent for reasoning, refactoring, and complex problem-solving.

🔵

Gemini 2.5 Pro

Fast responses, good for quick questions and explanations.

Plus: o3 and o4-mini for advanced reasoning tasks

Bring Your Own Key (BYOK) — use your own API keys for chat

Getting Started in 5 Minutes

💡 Pro Tip

Enable Agent Mode: Tools → Options → GitHub → Copilot → Copilot Chat → Enable Agent mode

Live Demo Time

Let's see GitHub Copilot in action

✨

We'll Demo

• Inline completions with partial accept
• Chat with /explain and /tests
• Agent mode scaffolding
• Code review before commit

🎯

Key Takeaways

• Comment-first development
• Context is everything (+ button)
• Custom instructions = consistency
• Agent mode for heavy lifting

Resources & Questions

📚 Learn More

Official Docs:
learn.microsoft.com/visualstudio/ide/copilot-agent-mode

GitHub Changelog:
github.blog/changelog

Visual Studio Blog:
devblogs.microsoft.com/visualstudio

🎬 Deep Dive Guide

Complete Visual Studio Copilot Guide:
htek.dev/articles/github-copilot-visual-studio-guide

Every feature, every shortcut, every pattern — with a 46-minute video walkthrough.

Questions?

Let's discuss what would help your team most