Open Island

Open Island

Why pay for a closed-source app just to monitor your coding agents?

Open-source, local-first, native macOS companion for AI coding agents.

Download · Quick Start · Roadmap · Contributing

What is Open Island?

Open Island sits in your Mac's notch (or top bar) and gives you a real-time control surface for your AI coding agents — session status, permission approvals, and instant jump-back to the right terminal. All without leaving your flow.

Think of it as an open-source Vibe Island (opens in a new tab) — free, local-first, and you own every bit of it.

You don't need to pay for a product you can vibe, since you are a vibe coder.

Why Open Island?

• Open source — GPL v3, fork it, mod it, ship your own version
• Local-first — No server, no telemetry, no account. Everything runs on your Mac
• Native macOS — SwiftUI + AppKit, not an Electron wrapper
• Multi-agent — One surface for Claude Code, Codex, Cursor, Gemini CLI, OpenCode, and more
• Multi-terminal — Jump back to the exact terminal/IDE session in one click

Code Agents

Terminals & IDEs

Other Features

Option 1: Download

Grab the latest DMG from GitHub Releases (opens in a new tab) — signed and notarized, ready to run.

Option 2: Homebrew

Upgrade later with brew upgrade --cask open-island.

Option 3: Build from source

On first launch, Open Island auto-discovers your active agent sessions and starts the live bridge. Hook installation is managed from the Settings window inside the app.

Requirements: macOS 14+, Swift 6.2, Xcode

How It Works

Hooks fail open — if Open Island isn't running, your agents continue unaffected.

Architecture details

Four targets in one Swift package:

See [docs/architecture.md](docs/architecture.md) for the full system design.

Report a Bug via Your Code Agent

Copy this prompt into your agent (Claude Code, Codex, etc.) to auto-generate a well-structured issue:

Click to expand

Agent Parts

This section is written for agents.

The open-source macOS companion for terminal-native AI coding.

Open Island puts a lightweight control surface in your notch or top bar so you can keep an eye on live coding agents, follow session progress, and jump back to the right terminal without breaking flow.

Why This Product Exists

AI coding is becoming part of the daily development loop, but the surrounding control layer still too often means handing your machine over to a closed-source paid app.

Open Island takes the opposite approach:

• Open source
• Local first, no server dependency
• Native macOS (SwiftUI + AppKit)
• Built to support the terminal workflow, not replace it