Deterministic team development workflow for Claude Code. Enforces a mandatory sequence of phases (Setup → Brainstorm → Plan → Execute → Quality Check → Ship) with Linear integration, TDD requirements, and quality gates. Activates when working on issues/tasks, when user mentions Linear issues (e.g., ENG-123), when starting development work, or when preparing to ship code. Commands: /team:task, /team:quality-check, /team:ship.