CoIsland is a native macOS monitoring app for engineers who need to follow activity across code, deployments, data systems, tickets, email, and on-call tools. It displays monitored activity in the Mac's notch rather than requiring a browser dashboard or a collection of open service tabs.
A monitor runs a query, search, filter, or threshold check against one connected tool on a schedule selected by the user. When a check produces a new match or crosses a configured threshold, CoIsland surfaces the alert with its matching rows or items, monitor context, and activity. Users can acknowledge, annotate, and resolve alerts from the app.
CoIsland also provides a one-click handoff to Claude Code, Codex, or Cortex Code. The agent receives the alert facts, query, retained results, and activity; it can investigate and request approval before acting, while the user keeps control over the alert's final resolution. Connections are made directly from the Mac, with credentials stored in the macOS Keychain.