# Cairn MCP server

> Maintains AI context continuity by creating local decision ledgers and structured handoff briefs between long agent sessions and different models.

- Repository: https://github.com/CheswickDEV/cairn
- Page: https://hostedmcp.org/servers/cheswickdev/cairn
- Transport: —
- Stars: 1
- License: MIT

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `CAIRN_DB` | no | no |  |

## Tools (4)

- `host_status`
- `decision_log`
- `context_status`
- `handoff`

## FAQ

### Does Cairn send my data to the cloud?

No, Cairn is a local-private server that uses stdio and SQLite with no telemetry or egress.

### Can I use Cairn with different AI models?

Yes, it is designed to carry context across different sessions and models, such as switching between Claude and Codex.