← Back to Cairn

Start with the work
you already have.

Cairn adds a durable record beneath your existing AI work. Your model, tools, and habits keep working as usual; Cairn makes what they learn easier to trust, find, and carry forward.

Behavior changeNone required
First signalCairn: Live
Time to startAbout 5 minutes

Four steps to a living record.

  1. 01

    Install Cairn

    Add Cairn to Codex through the local plugin marketplace. Claude Code users can enable the companion hook bridge. Both write to the same local Cairn ledger; no hosted account is required for beta.

  2. 02

    Trust the hooks

    Review and trust Cairn’s lifecycle hooks when your AI host asks. Start a new task or Claude session so the current hooks and tools are loaded together.

  3. 03

    Keep working normally

    Use Claude, Codex, or your existing tools as you do today. Cairn observes lifecycle events, advises model routing, and records token economics locally.

  4. 04

    Look for the line

    At the end of a turn, Cairn shows a compact system state. Cairn: Live means attachment, storage, constitution, heartbeat, and observation checks passed.

Beta privacy promise: raw prompts, tool responses, transcripts, repositories, and task artifacts stay on your machine. Cairn records structured telemetry and hashes for local analysis; nothing is uploaded by default.

Small enough to trust at a glance.

Cairn: Live

Everything needed to observe this task is healthy.

Cairn: Attention · No observation heartbeat

A check found a condition that needs repair or a fresh task boundary.

Cairn: Attention · Couldn’t verify this task

The diagnostic identity was ambiguous; Cairn will not guess which task to report.

The dashboard is where the deeper record will live.

The local runtime works on its own. When account access is available, your Cairn dashboard will give you a fuller view of learned claims, evidence, lineage, and system health.

Bring the work.
Cairn keeps the why.

Apply for the free beta