Three Man Team

AI tools are powerful. And undisciplined.

AI coding tools are powerful but undisciplined. They read entire codebases when they need one function. They add features nobody asked for. They drift mid-task. They burn tokens on every session doing work that didn’t need to happen.

“The solution isn’t a better prompt. It’s a process.”

Three Man Team gives you three agents with distinct jobs, clear handoffs, and rules that prevent the most expensive failure modes. The Architect plans and deploys. The Builder builds exactly what the brief says. The Reviewer doesn’t pass work that isn’t right.

Why Three Agents

DeepMind’s multi-agent research shows teams of 3-5 with structured artifact handoffs outperform both solo agents and larger groups. Three is not arbitrary. It is the minimum for meaningful review and the maximum before coordination overhead eats the gain.

The roles map to how real software ships:

• Someone who understands the whole system and owns the deploy
• Someone who builds fast and clean
• Someone who catches what the builder missed

The Workflow

Every unit of work follows the same path. Architect plans and writes the brief. Builder reads it, shows a plan, builds, and hands off to Reviewer. Reviewer clears it or sends it back. Architect deploys with the Project Owner’s go-ahead. Nothing skips a step.

See a complete example from problem to deploy → examples/sprint-walkthrough.md

The Team

Three agents. Three distinct jobs. Built to work together.

Architect, Builder, Reviewer are the defaults. Rename them to anything. Arch will handle it during setup.