Getting started

Arbiter is an open-source, local-first multi-agent workspace for the terminal. Run parallel conversations, inspect tool activity and diffs as work streams, and return to saved threads without leaving your shell.

Start with the local install and the interactive TUI. The same runtime also supports one-shot CLI calls and an HTTP+SSE server when you want to automate it.

See also

• Philosophy — why arbiter is shaped the way it is.
• Writ — the slash-command DSL agents emit.
• Todos — how agents track progress on multi-step work.
• api/ — HTTP API reference.
• cli/ — non-interactive command-line reference.
• tui/ — interactive terminal client.