mill docs

Installation

Prerequisites

The mill orchestrates its agents with conductor and needs two providers: the claude-agent-sdk provider (implementation and security review) and the copilot provider (adversarial cross-model review).

curl -sSfL https://aka.ms/conductor/install.sh | sh
uv tool install --force 'conductor-cli[claude-agent-sdk] @ git+https://github.com/microsoft/conductor.git@v0.1.25'

Do not install conductor-cli from PyPI — that is an unrelated package that shadows the real conductor.

Authentication is whatever you already have: the claude-agent-sdk provider uses your claude login, the copilot provider uses your gh auth login. Verify both with:

conductor doctor

Install the mill

curl -sSfL https://raw.githubusercontent.com/frostyard/mill/main/install.sh | sh

This clones the engine to ~/.local/share/frostyard-mill, puts a mill command on your path, and — if you use Claude Code — links the millify onboarding skill into ~/.claude/skills. Run the same command again any time to update.

Set up a repository

Each consuming repository carries one committed file, .mill.toml, naming its gates, context docs, security invariants, and skills directory. Two ways to create it:

• In Claude Code, run the millify skill from the repo root. It inspects the build system, generates .mill.toml, seeds the skills directory, and wires the cross-agent surfaces (CLAUDE.md, GEMINI.md, .github/copilot-instructions.md, .agents — all reading the canonical AGENTS.md).
• Or copy mill.toml.example from the engine repo and edit by hand. The configuration reference covers every key.