Connect Claude, Codex, Antigravity, Grok and Cursor

Agent Island never asks you for a password. It reuses the sign-in each coding tool already has on your machine. This is what each one needs.

Before you start

Agent Island installed
A terminal you can run the coding tools from

1. Open the provider list

Go to Settings → Providers. Every provider you are signed in to appears here with its plan badge and last sync; the ones without a detected sign-in stay dark.

Agent Island provider settings listing all five supported providers — A provider with no detected local sign-in gets no slot and no row

2. Claude Code

claude /login

Agent Island reads the freshest keychain entry automatically. If a row says auth required, this command is the fix — the usage endpoint needs the current scope set, which only a fresh login mints.

You should see: the Claude row showing a plan badge and a percentage

3. Codex

Sign in with the Codex CLI as you normally would. Codex exposes a weekly quota window — if a tool shows you a five-hour Codex window, it is displaying a shape that no longer exists.

You should see: the Codex row with a weekly percentage and reset countdown

4. Antigravity

Install the Antigravity CLI and sign in with Google:

agy

Quota is read from Antigravity's local language server rather than a cloud endpoint. API-key and Vertex setups stay unsupported rather than showing invented numbers.

You should see: the Antigravity row with a tier badge such as STARTER

5. Grok and Cursor

Grok rides an existing grok CLI login. Cursor is read from its local installation records — since 2.1.2 it carries live session state and your-turn alarms as well as billing-cycle usage.

You should see: both rows populated if you use those tools

6. Pick your two island slots

Back in Settings → Providers, choose the two you want in the compact island. The others keep full rows in the expanded panel.

You should see: your two chosen providers in the bar

If it does not work

A provider stays dark

No detected sign-in. Run that tool's own login once, then wait a refresh cycle.

Claude says auth required

Run claude /login again. Older tokens lack a scope the usage endpoint now requires.

Antigravity is not detected

Confirm agy is installed and signed in. If your account cannot access the service, the CLI itself will say so.

A row shows an old timestamp

Click the Synced caption in the panel footer to refresh now, or shorten the refresh interval.

Next: set up the alert that calls you back.

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