Notes from the automation workshop

Running Two Claude Code Accounts on One Machine

Aug 18, 2026 · 11 min read · Cortex Kinematics Team

Agency work means holding more than one Claude account — a personal plan, a company one, sometimes a client's. Claude Code expects one at a time, but a single environment variable keeps them side by side on the same machine, with separate logins, separate limits and separate history. Here is the full setup, what it costs you, and the failure modes that only show up later.