Install and connect

Before you begin

CodeZero runs inside Visual Studio Code. The current extension requires VS Code 1.90.0 or newer.

CodeZero adds system context and structured workflows around a coding agent — it does not replace one. Install the agent you already use first, sign in to it, and confirm it runs in VS Code before connecting CodeZero.

Code Graph, Git tools, repository browsing and the indexed feature view can still be used without an agent.

Claude Code

Install the Claude Code extension from the Marketplace, or run npm install -g @anthropic-ai/claude-code and launch claude once in your project root to complete sign-in. Requires a Claude account on a plan that includes Claude Code. Open the Claude Code panel and send any prompt to confirm — a signed-out agent produces no output.

Codex

Install the Codex extension from the Marketplace, or run npm install -g @openai/codex and launch codex once to authenticate. Sign in with the account that carries your Codex access; an API key alone is not enough if your organisation requires SSO. Codex runs in its own sandbox by default — leave that setting as it is, since CodeZero supplies context rather than execution permissions.

GitHub Copilot

Install GitHub Copilot and Copilot Chat from the Marketplace, then sign in with the GitHub account holding your Copilot subscription. Send a prompt in Copilot Chat to confirm the seat is active — an expired or unassigned seat leaves the panel installed but unresponsive. If your organisation restricts Copilot by repository, confirm the repository you are working in is permitted.

CodeZero does not ship any of these agents and does not replace or modify their authentication.

Install the extension

Install CodeZero from the Visual Studio Code Marketplace.

You can also install a provided .vsix package. After installation, open CodeZero from the VS Code Activity Bar.

Sign in or create an account

A fresh installation starts signed out. Select Sign in with Frigga from the CodeZero panel; your browser opens to complete authentication.

If CodeZero cannot find an associated account, it redirects you to the Frigga account setup flow: create an account or sign in, then verify your email with the OTP sent to you.

Product access is separate from authentication, so a valid Frigga account can still lack a CodeZero seat — an administrator may need to grant access.

Select your organisation and repository

Choose the organisation that owns the repositories you work in, then select the repository you want to start in. If your account is already associated with one organisation whose repositories are available to CodeZero, this step completes on its own.

Organisation-wide context comes from the index rather than from what is open in VS Code, so the repository you select decides where the session starts — not the limit of what CodeZero can read.

If CodeZero is connected to the wrong organisation, sign out, sign in with the correct account, select the intended organisation and start a new session.

Wait for repository indexing

CodeZero uses the organisation's repository index to build Code Graph, Feature Mapping and cross-repository context.

When a repository is already indexed, it is available immediately. Repositories that are still cloning, indexing, refreshing or failed are shown with their current state. Refresh the panel once indexing finishes.

Confirm your setup

Your setup is ready when:

• You are signed in to CodeZero.
• The expected organisation repositories appear in the Files view.
• The repositories you need show an indexed state.
• Claude Code can be detected if you intend to run agent turns or name features.

You can now explore the system, investigate a feature and plan your first change.