Open Island

What Open Island does

Open Island is an open-source, local-first alternative to the paid Vibe Island app. It is built with SwiftUI and AppKit rather than Electron, and the README says it uses no server, telemetry or account.

It supports 15 agents, including Claude Code, Codex, Cursor, Gemini CLI, OpenCode, Pi and Hermes Agent, and more than 15 terminals and IDEs such as Terminal.app, Ghostty, iTerm2, WezTerm, tmux, VS Code and JetBrains IDEs. For Hermes Agent the integration works through a hooks block in ~/.hermes/config.yaml, with session tracking, turn completion cards, and question and approval cards for clarify and pre_approval_request events. One click returns you to the exact terminal or IDE session.

Key features

• Notch or top-bar surface showing live session status
• Permission and question approval cards
• Jump back to the exact terminal or IDE session
• Hermes support via a hooks block in ~/.hermes/config.yaml
• Native SwiftUI and AppKit app, local-first with no account

When to use it

• Watching several agent sessions, Hermes included, without switching windows
• Approving a Hermes permission request from the notch
• Returning quickly to the terminal where an agent finished

Who it is for: Mac users who run Hermes Agent and other coding agents and want one on-screen status and approval surface.

How it fits with Hermes Agent

Supports Hermes Agent among 15 agents through hook integration in the Hermes config file.

Requirements: macOS

FAQ