GitHub Copilot: Detailed Introduction

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GitHub Copilot: Detailed Introduction

An AI assistant integrated into GitHub and developer tools for completion, questions, tasks, and review.

• Audience: Individuals and teams who want AI within existing GitHub and editor workflows.
• Cost: A free tier is available; individual Pro is $10/month as of 2026-10-25, with plan-specific allowances.

Table of Contents

Getting started

1. What it is and who it is for
2. Access and setup: your first session

Usage and configuration

3. A concrete task and how to check it
4. Costs: software, models, and execution
5. Configuration and extensions

Limits and references

6. Permissions, data, and limitations
7. Frequently asked questions
8. Official references

Use the contents to jump to each section. If an in-page link does not respond, open it in a new tab.

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What it is and who it is for

In one sentence: An AI assistant integrated into GitHub and developer tools for completion, questions, tasks, and review.

Who it suits: Individuals and teams who want AI within existing GitHub and editor workflows.

What you can do:

• Explain files and suggest inline code.
• Assign scoped implementation tasks.
• Review changes and pull requests.

Where to start: Enable access from Copilot or request an organization seat. Sign in with the same GitHub account in your chosen client.

Cost: A free tier is available; individual Pro is $10/month as of 2026-10-25, with plan-specific allowances.

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Access and setup: your first session

Enable access from Copilot or request an organization seat. Sign in with the same GitHub account in your chosen client.

Start with a repository question on GitHub.com, then add an editor integration for local work. Completion, chat, CLI, cloud agents, and review differ by client and plan. Quickstart

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A concrete task and how to check it

Provide an issue with file scope, compatibility requirements, and acceptance criteria.

Example:

Handle empty input without changing the return type. Add a regression test and report files and actual test results. Do not merge the PR.

Review inline suggestions, full agent diffs, and review findings using the evidence appropriate to each surface.

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Costs: software, models, and execution

Official tiers include Free, Student, Pro, Pro+, Max, Business, and Enterprise. Individual monthly prices checked 2026-10-25 are Pro $10, Pro+ $39, and Max $100. Plans

Seat access and AI-credit consumption are separate. Models, agents, usage, and organization policies affect what is available.

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Configuration and extensions

Customize repository instructions, reusable prompts, skills, agents, and MCP tools. Document build/test commands and excluded change scope before adding tools.

Organization administrators control access and features, so the same account may behave differently across repositories. Administration

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Permissions, data, and limitations

Generated code can be wrong or unsuitable. Accepted completions, created PRs, and completed reviews do not establish correctness.

Review applicable data and access settings for your plan and organization. Cloud agents do not automatically share your local environment.

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Frequently asked questions

Must I change editors? No; use a supported tool or GitHub.com.

Why is chat available but an agent is not? Client support, allowances, and policies differ.

Does a paid GitHub plan include it? Confirm Copilot access separately from your GitHub platform subscription.

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Official references

• Product
• Overview
• Quickstart
• Plans