github-copilot capabilities

Synchronous, autonomous agent inside the IDE that plans multi-step coding tasks, edits files across the workspace, runs commands, and iterates until the task is complete.

Copilot can review pull requests on github.com and review uncommitted changes in the IDE, leaving inline review comments and suggesting fixes.

Terminal-native agentic assistant; natural-language conversation in the shell that proposes and executes commands and code edits with explicit per-action approval.

Conversational AI panel and inline chat for asking coding questions, generating code, and explaining selections. Includes slash commands such as /explain, /fix, /tests, /doc, /new.

Secure, shareable containers that bundle code, docs, specs, text snippets, and custom instructions to ground Copilot answers in project-specific knowledge. Replaces the retired Copilot knowledge bases (sunset 2025-11-01).

Asynchronous cloud-hosted agent that, given an issue or task, researches the repo, drafts a plan, makes commits on a branch in a GitHub Actions cloud dev environment, and opens a draft pull request you can review.

Iterative, multi-file edit session driven by chat prompts. Copilot proposes inline diffs in a 'working set' of files that you accept or reject individually or collectively.

First-party extensions for the major developer editors: VS Code, Visual Studio, JetBrains suite (IntelliJ, PyCharm, GoLand, WebStorm, Rider, etc.), Neovim/Vim, Xcode, Eclipse, and Azure Data Studio.

Real-time, in-editor 'ghost text' code suggestions that appear at the cursor while you type; press Tab to accept. The core single-line and multi-line completion experience available across all supported editors.

Model Context Protocol (MCP) servers can be configured to extend Copilot Chat and Agent with custom tools and data sources. Copilot Extensions (legacy) and skillsets also provide third-party capability hooks.

User-selectable models in the Chat/Edit/Agent model picker spanning OpenAI GPT-5.x family, Anthropic Claude (Haiku 4.5, Sonnet 4.5/4.6, Opus 4.5/4.6/4.7), and Google Gemini (2.5 Pro, 3 Flash, 3.1 Pro, 3.5 Flash).

Predicts both the location and content of the next likely edit based on edits you've already made, letting you tab through a chain of related changes across the file.

Six plan tiers: Copilot Free, Copilot Student (free, eligibility-gated), Copilot Pro ($10/mo), Copilot Pro+ ($39/mo), Copilot Business ($19/seat/mo), Copilot Enterprise ($39/seat/mo).

Per-repository Markdown instruction files (.github/copilot-instructions.md and .github/instructions/*.instructions.md) that prepend guidance to every Chat/Edit/Agent request. Prompt files (.prompt.md) provide reusable, parameterized prompts.