AI tools · Coding

VS Code AI Extensions: setup, settings and troubleshooting

Bring AI code completion, chat, and agents directly into Visual Studio Code through its extension ecosystem.

What is VS Code AI Extensions?

Visual Studio Code supports AI-assisted coding through its Extensions marketplace — most notably GitHub Copilot's native integration, alongside third-party AI extensions like Continue and Codeium. These add inline code completion, an in-editor chat panel, and increasingly, agent-style multi-file editing, without leaving the editor.

  • Inline code completions as you type
  • An in-editor chat panel that can see your open files for context
  • Agent-style features in newer extensions that can edit multiple files for a task
  • Support for many languages and frameworks, not just one ecosystem

Install the app

  1. Install VS Code from the official download page if you don't already have it.
  2. Open the Extensions panel (the four-squares icon in the sidebar, or Ctrl/Cmd+Shift+X).
  3. Search for the AI extension you want (e.g. GitHub Copilot) and click Install.

How to use VS Code AI Extensions

Once installed and signed in, inline suggestions typically appear automatically as you type — accept them with Tab. Open the extension's chat panel from the sidebar to ask questions about your code or request changes.

Common problems and fixes

Suggestions stopped appearing
Check the extension's status icon in the bottom status bar — it often shows if you've been signed out or hit a usage limit.
Extension feels slow
Disable other heavy extensions temporarily to rule out a conflict, and confirm your internet connection is stable since most AI extensions call a cloud service.

Best practices

  • Only enable one primary AI completion extension at a time — running several together can cause conflicting suggestions.
  • Review AI-suggested code before accepting it, especially for logic-critical or security-sensitive code.
  • Keep VS Code and your extensions updated — AI extensions ship improvements frequently.

Frequently asked questions

Do I need to pick just one AI extension?

Technically you can install several, but running multiple inline-completion extensions at once often causes conflicting suggestions — most people settle on one primary tool.

Is VS Code itself an AI tool?

No — VS Code is a free, general-purpose code editor. The AI capabilities come from extensions installed into it.

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