Cairn for macOS

Hundreds of agents. One clear control.

Cairn grew out of work with Claude Code, pi, cmux, tmux, worktrees, and bird's-eye experiments. Its interface makes the next human decision clear.

Read the release notes Read the Journey to Cairn Explore the API & plugin docs
The return 01 / 06
Interrupted terminal fragments resolving into the question Which workspace needs you?

01 · Return to the work

Come back knowing which workspace needs you.

Cairn turns a scattered set of coding-agent sessions into one direct question about the next human decision.

The Cairn overview showing grouped workspaces and a dense list of live sessions

02 · See the whole field

Grouped workspaces make parallel work legible.

See active sessions together, understand their state, and move from the overview to the right terminal without hunting through windows.

A Ready Cairn session rising above the other work with its exact terminal question

03 · Find the decision

Ready work rises above everything still running.

The session that needs attention becomes clear, along with the exact terminal question waiting for a response.

A Cairn terminal beside a retained handoff with request, response, files, and validation

04 · Recover the handoff

Understand what happened while you were away.

Read the request, final response, observed files, and agent-reported validation before deciding what happens next.

Cairn window layouts, Stay Awake controls, and Cairn Remote on iPhone

05 · Keep it in reach

Use Cairn beside the terminal, overnight, and away from the Mac.

Built-in layouts organize the work. Stay Awake supports plugged-in sessions. Cairn Remote keeps session reading available from iPhone and iPad.

The Cairn mark and the promise to know what needs you across hundreds of agents

06 · Decide once

Try the full Mac app free for seven days.

After the trial, Cairn is a one-time Mac license. The purchase and customer resources remain available without a subscription.

Try Cairn for macOS

Free for seven days.

$99one-time Mac license
after the free trial