Cairn

Cairn

Git-native tasks your AI agents and team actually share

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Cairn is a cross-platform desktop app for tracking tasks as Markdown files in your repo. No database. It serves the same tasks to your AI agents over MCP and to you over a clean UI, so an agent and a human always see the same state. The difference: agents can't fake "done." Every task carries checks like go test/.... cairn runs them on close and refuses to close if any fail. Git owns the history, every write is signed, and agents hand off for review. Open source.

Cairn

Launch date
Cairn
Cairn Git-native tasks your AI agents and team actually share

Launched on June 26th, 2026