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Compare available AI models in Copilot Chat and choose the best model for your task.

Create a file in a repository that gives Copilot additional context for the work it does in that repository.

Copilot Chat can help with generating unit tests for a function.

About custom instructions for GitHub Copilot GitHub Copilot can provide chat responses that are tailored to the way your team works, the tools you use, or the specifics of your project, if you provide it with enough context to do so. Instead of repeatedly adding this contextual detail to your chat questions, you can create a file that automatically adds this information for you. The additional inf

Dependabot can fix vulnerable dependencies for you by raising pull requests with security updates.

You can use GitHub Copilot to enhance your productivity and assist as you work on code.

Prerequisites Access to GitHub Copilot. See What is GitHub Copilot?. GitHub CLI installed. For installation instructions for GitHub CLI, see the GitHub CLI repository. Copilot in the CLI extension installed. See Installing GitHub Copilot in the CLI. If you have access to GitHub Copilot via your organization or enterprise, you cannot use Copilot in the CLI if your organization owner or enterprise a

Prerequisites Access to GitHub Copilot. See What is GitHub Copilot?. Latest version of Visual Studio Code. See the Visual Studio Code download page. Sign in to GitHub in Visual Studio Code. If you experience authentication issues, see Troubleshooting common issues with GitHub Copilot. If you have access to GitHub Copilot via your organization, you won't be able to use GitHub Copilot Chat if your o

Lists of supported secrets and the partners that GitHub works with to prevent fraudulent use of secrets that were committed accidentally. Secret scanning is available for the following repository types: Public repositories on GitHub.com Organization-owned repositories on GitHub Team with GitHub Secret Protection enabled About secret scanning patterns There are three types of secret scanning alerts

Rulesets help you to control how people can interact with branches and tags in a repository. Anyone with read access to a repository can view the repository's rulesets. People with admin access to a repository, or a custom role with the "edit repository rules" permission, can create, edit, and delete rulesets for a repository. Rulesets are available in public repositories with GitHub Free and GitH

You can add sub-issues to an issue to break down larger pieces of work into tasks. Your sub-issues show their relationship to the parent issue allowing you to track your work across GitHub. Parent issues and sub-issue progress is also available in your projects, allowing you to build views, filter, and group by parent issue. Your sub-issues can themselves contain sub-issues, allowing you to create

You can use Copilot to get answers to coding-related questions, such as how best to code something, how to fix a bug, or how someone else's code works. For full details of what Copilot can do, see What is GitHub Copilot?. Instructions for using Copilot differ depending on where you are using it. This version of the quickstart is for GitHub. Click the tabs above for instructions on using Copilot in

Introduction This guide demonstrates how to get coding suggestions from GitHub Copilot in a JetBrains IDE. To see instructions for other popular coding environments, use the tool switcher at the top of the page. The examples in this guide use Java, however other languages will work similarly. For more information, see GitHub Copilot code suggestions in your IDE. Prerequisites Access to Copilot. To

Dependency review is available for the following repository types: Public repositories on GitHub.com Organization-owned repositories on GitHub Team with GitHub Code Security enabled About dependency review Dependency review helps you understand dependency changes and the security impact of these changes at every pull request. It provides an easily understandable visualization of dependency changes

QuickstartAbout the REST APIAbout the REST APIComparing GitHub's APIsAPI VersionsBreaking changesOpenAPI descriptionUsing the REST APIGetting startedRate limitsPaginationLibrariesBest practicesTroubleshootingTimezonesCORS and JSONPIssue event typesGitHub event typesAuthenticationAuthenticatingKeeping API credentials secureEndpoints for GitHub App installation tokensEndpoints for GitHub App user to

OpenID Connect allows your workflows to exchange short-lived tokens directly from your cloud provider. Overview of OpenID Connect (OIDC) GitHub Actions workflows are often designed to access a cloud provider (such as AWS, Azure, GCP, HashiCorp Vault, and others) in order to deploy software or use the cloud's services. Before the workflow can access these resources, it will supply credentials, such

About automatically generated release notes Automatically generated release notes provide an automated alternative to manually writing release notes for your GitHub releases. With automatically generated release notes, you can quickly generate an overview of the contents of a release. Automatically generated release notes include a list of merged pull requests, a list of contributors to the releas

Learn how to avoid duplication when creating a workflow by reusing existing workflows. Creating a reusable workflow Reusable workflows are YAML-formatted files, very similar to any other workflow file. As with other workflow files, you locate reusable workflows in the .github/workflows directory of a repository. Subdirectories of the workflows directory are not supported. For a workflow to be reus

Introduction In this guide, you'll learn about the basic components needed to create and use a packaged composite action. To focus this guide on the components needed to package the action, the functionality of the action's code is minimal. The action prints "Hello World" and then "Goodbye", or if you provide a custom name, it prints "Hello [who-to-greet]" and then "Goodbye". The action also maps

Examples of how you can use GitHub Actions to automate common Dependabot related tasks.

Find information about security best practices when you are writing workflows and using GitHub Actions security features. Writing workflows Use secrets for sensitive information Because there are multiple ways a secret value can be transformed, automatic redaction is not guaranteed. Adhere to the following best practices to limit risks associated with secrets. Principle of least privilege Any user

About personalizing Codespaces When using any development environment, customizing the settings and tools to your preferences and workflows is an important step. GitHub Codespaces allows for two main ways of personalizing your codespaces. Settings Sync - You can synchronize your Visual Studio Code settings between the desktop application and the VS Code web client. Dotfiles – You can use a dotfile

You can share information about yourself with other users by setting a profile picture and adding a bio to your profile. Note Any details you add to your public profile will be visible to all GitHub users, including in regions where local laws, regulations, or cultural norms may pose risks to expressing your identity. We respect everyone’s decision about whether or not to share information about t