Cydonia

Agents that leave something behind.

Open any directory. Agents that speak the Agent Client Protocol work in it, and what comes out stays as durable artifacts on your disk — articles, boards and tables, not a chat log you scroll and lose.

macOS on Apple silicon · pure rust · no account, no sync

The work outlives the session

Markdown, SVG, one SQLite file and a TOML config — all on your disk, all yours.

<project>/.cydonia/
articles, boards, sessions
~/.config/cydonia/
settings, MCP servers, agents
~/.local/share/
installed agents

Download cydonia

No packaged builds yet. Install from crates.io with Rust.

Today: write in a project and hand it to one agent. Several of them working the same project is what comes next.

cargo install cydonia