Install

One isolated arthur command.

Python 3.9 or newer is the only core requirement. Confirm with arthur --version — v0.1.1 prints arthur 0.1.1. v0.1.1 includes follow, MCP, roles, and Atlas walk.

Pick a path

pipx install git+https://github.com/myrrazor/arthur-loop.git

uv tool install git+https://github.com/myrrazor/arthur-loop.git

curl -fsSL https://raw.githubusercontent.com/myrrazor/arthur-loop/main/install.sh | sh

From a checkout, ./install.sh installs that tree. All three public commands track default git HEAD (usually main).

Then initialize an instance

mkdir ~/my-loop && cd ~/my-loop
arthur init

The wizard detects agent CLIs on PATH, asks for a main agent and a loop preset, writes adapter packs, and — unless you pass --no-integrations — writes skills, slash commands, and MCP config where those clients actually load them.

Non-interactive

Without a terminal, arthur init fails fast and asks for --yes. Every interview question is also a flag:

arthur init --yes --main-agent grok --preset solo
arthur init --yes --demo

--demo seeds sample projects, a job, sessions, a decision, and a quota bar so arthur status, arthur web, and ArthurBar have something to show.

Mac menu bar (separate install)

The commands above do not install ArthurBar. After arthur works, macOS 14+ only:

curl -fsSL https://raw.githubusercontent.com/myrrazor/arthur-loop/main/menubar/install.sh | sh
ArthurBar --root ~/my-loop

That builds from source (Xcode or Command Line Tools). There is no Homebrew cask or signed app yet. Quota in the menu bar: Menu bar.

Update and uninstall

Repeat the install command to update. pipx and uv need --force. Uninstall with pipx uninstall arthur-loop or uv tool uninstall arthur-loop. Curl installs live under ~/.arthur-loop with a shim at ~/.local/bin/arthur.

Windows

The well-tested path is WSL. An experimental install.ps1 ships in the repository; run it from a checkout. File locks, desktop notifications, and the browser advisor are not a supported Windows product yet.