Agent Isle

A Dynamic Island for your coding agents. Agent Isle is a native macOS app that lives in the notch and lets you monitor, approve, and jump back to your AI coding agents — Claude Code, Grok, Copilot and more — without leaving your flow.

Pure Swift, no Electron. Runs as a lightweight menu-bar accessory under 100 MB RAM.

Icon: a neon terminal prompt — > and a block cursor.

Features

• Notch-anchored island — a black pill hugging the notch that expands on hover or click into a full panel of every running agent session.
• Multi-agent, hook-free monitoring — reads each tool's own session history:
  • Claude Code — terminal, VS Code, Cursor, and Desktop sessions
  • Grok CLI and GitHub Copilot CLI
• Live status — each session shows working / idle, its latest activity line, git branch, elapsed time, and token usage.
• Approve from the notch — for Claude Code, permission requests render an inline diff with Deny (⌘N) / Allow (⌘Y); the decision flows straight back to the agent.
• Answer questions — multiple-choice prompts answered right in the island.
• Click to jump — click a session to focus its terminal or IDE (detected via TERM_PROGRAM, so a session in VS Code's integrated terminal opens VS Code).
• Filter tabs — Monitor / Approve / Ask.
• 8-bit sound alerts — synthesized chiptune cues (no audio files).
• Fully local — the only moving part is a localhost event server; nothing leaves your machine.

Requirements

• macOS 14 (Sonoma) or later, Apple Silicon or Intel
• Xcode / Swift 5.9+ toolchain (to build)

Build & run

swift build                     # compile
bash Scripts/bundle.sh          # build "build/Agent Isle.app"
open "build/Agent Isle.app"     # launch (appears in the notch + menu bar)

On first launch it shows demo mode — simulated sessions so you can see it work. It switches to real sessions automatically as soon as any are detected. Quit and toggle demo/sound from the gear menu in the expanded island.

Connect your agents

Claude Code — monitoring works with no setup (Agent Isle reads ~/.claude/projects/ transcripts). To also approve permissions from the notch:

bash Scripts/install-hooks.sh   # adds hooks to ~/.claude/settings.json
bash Scripts/uninstall-hooks.sh # remove them (monitoring still works)

Grok CLI / GitHub Copilot CLI — detected automatically from ~/.grok/sessions and ~/.copilot/history-session-state. Nothing to configure.

Any other tool — POST to the event server:

curl -X POST http://localhost:4711/event -H 'Content-Type: application/json' -d '{
  "type": "status", "session": "my-session", "agent": "codex",
  "title": "build api", "terminal": "iTerm",
  "status": "working", "message": "Writing routes/users.ts"
}'

Event types

type	Behavior
status	Create/update a session (status, message, title).
permission	Show an approval card; blocks until you decide, then replies {"decision":"allow"|"deny"}.
question	Show options; blocks until chosen, replies {"decision":"<option>"}.
done	Mark the session finished.
remove	Drop the session.

Architecture

Sources/AgentIsle/
  main.swift              App entry (NSApplication, accessory policy)
  AppDelegate.swift       Notch window + menu-bar item + watcher/server wiring
  Notch/
    NotchGeometry.swift   Detects the physical notch (falls back to a centered pill)
    NotchWindow.swift     Fixed-size floating panel + click-through hit region
    PassthroughView.swift Passes clicks through everywhere except the island
  Views/
    IslandRootView.swift  Collapsed <-> expanded switch, spring animations
    CollapsedIsland.swift  Resting pill (focus session + count badge)
    ExpandedIsland.swift   Full panel: header, session list, filter tabs, gear menu
    SessionRow.swift       Per-session row (badge, status, tokens); click to jump
    PermissionCard.swift   Inline diff + Allow/Deny; QuestionCard for choices
    AppMark.swift          The terminal-prompt logo, drawn in SwiftUI
  Model/
    Models.swift          AgentKind, SessionStatus, AgentSession, PermissionRequest
    SessionStore.swift    Observable state + demo generator + filters
  Server/
    EventServer.swift     Localhost HTTP listener; parks blocking requests
    IdeWatcher.swift      Hook-free Claude Code session discovery (transcripts)
    TranscriptReader.swift Tails transcripts for activity + token totals
    ExternalAgents.swift  Adapters for Grok / Copilot
    Jumper.swift          Focus a session's terminal/IDE
  Sound/
    SoundPlayer.swift     Runtime-synthesized square-wave alerts
Scripts/
  bundle.sh               Package the binary into a .app
  release.sh              Universal build + (optional) notarization + zip
  install-hooks.sh        Register Claude Code hooks
  uninstall-hooks.sh      Remove them
  agent-isle-hook.py      Claude Code -> island bridge (approvals from the notch)
  make_icon.py            Generate the app icon

Contributing

Contributions are welcome — especially new agent adapters. Each adapter is a small addition to ExternalAgents.swift that reads a tool's session history and returns ExternalSession values. Open an issue or PR.

License

MIT — see LICENSE.