Agent Island
Open-source status companion for your AI coding agents
About Agent Island
Agent Island solves a small problem that becomes constant once you use coding agents seriously. An agent working on a task takes minutes, during which you switch to something else, and then you either interrupt yourself repeatedly to check whether it has finished or asked a question, or you forget about it and it sits idle waiting for input. Multiply by several agents running across several projects and the attention cost is real. Agent Island puts their live status somewhere always visible, so you glance rather than check.
The tool is open source and runs natively on macOS and Windows rather than as a browser tab, which is the right choice for something intended to be ambiently visible. Coverage spans the agents people actually use, including Claude Code, Codex, Antigravity, Grok and Cursor. More than 3,000 users are reported, and it appears across a long list of curated collections including awesome-mac, awesome-claude-code-and-skills, awesome-cli-coding-agents, awesome-codex-cli and awesome-ai-dev-tools, which is a reasonable proxy for genuine developer adoption rather than marketing reach. Installation on macOS is a single Homebrew command. The interface is available in English and Chinese, and a changelog, guides and comparison pages are published.
Install via Homebrew on macOS with a single tap command, or download the Windows build. Agent Island then watches your running coding agents and surfaces their state where you can see it without switching windows. The value is knowing, at a glance, which of your agents is working, which has finished and which is blocked waiting on your input, so the decision to switch context is informed rather than speculative. Because it monitors multiple agent types simultaneously, a workflow spanning Claude Code in one project and Cursor in another stays visible as one picture. Being open source, the behaviour can be inspected and modified rather than accepted as given.
- •Ambient Status Display - Agent state visible without switching windows, so checking costs a glance rather than a context switch
- •Five Agents Supported - Claude Code, Codex, Antigravity, Grok and Cursor covered from one companion
- •Native macOS and Windows - A real desktop application rather than a browser tab, which is what ambient visibility requires
- •Open Source - Behaviour inspectable and modifiable rather than a closed binary watching your development environment
- •Homebrew Install - One command on macOS, with a Windows download available
- •Multi-Agent View - Several agents across several projects visible as one picture
- •Bilingual - English and Chinese interface
- •Actively Maintained - Published changelog, guides and comparison documentation
For developers running one or more AI coding agents through a working day, which is an increasingly ordinary way to work and comes with an attention cost nobody planned for. It suits anyone juggling agents across multiple repositories, where forgetting that one is blocked wastes more time than the task saved. Because it is free and open source, the only cost of trying it is the install. Developers who use a single agent occasionally will get less from it than those running several in parallel, which is the situation it was clearly built for.
Pricing
No pricing page found
Open source and free - install on macOS with brew install tristan666666/tap/agentisland, or download the Windows build
Checked 2026-09-15
