Cairn

A trail for every task.

Every agent you start is another line left dangling in your head. Cairn is a quiet desktop companion for coding agents: when Codex, Claude Code, OpenClaw, OpenCode, Hermes, or DeepSeek Harness finishes, its answer settles into a note beside your screen instead. No notification, no stolen focus — and one click lands you back where it started.

Download for macOS macOS 14+ · Apple Silicon · Free and open source · Local only
THE TRAIL

A turn finishes

Codex, Claude Code, OpenClaw, OpenCode, Hermes, or DeepSeek Harness completes a task — maybe in a window you left an hour ago.

A note settles

It lands quietly beside the stones. No sound, no banner, no stolen focus — it waits until you look.

Click to trace back

One click walks you back to the exact terminal tab, window, or conversation the work ran in.

Never interrupts

Cairn has no window and asks for nothing. It reports that something finished; it never demands that you respond.

Everything stacks

Notes from the same agent and project gather into one stack. Expand it only when you need the rest.

Traces back

Open a note to jump back to the exact terminal tab, editor window, app window, or session where it ran.

Stay focused

Juggle less in your head. Cairn remembers where each task lives, so you can stay with the one in front of you.

LISTENS TO Codex Hermes Claude Code OpenClaw OpenCode DeepSeek Harness