Running Coding Agents in Parallel with Git Worktrees

I kept hitting the same wall with coding agents. One Claude Code or Codex session in a repo works great. The moment I wanted two tasks moving at once - login in one terminal, payments in another - they started stepping on each other. Same working directory, same checked-out branch, two processes editing the same files. Chaos. The fix turned out to be a Git feature that has been sitting there for years: git worktree . It gives you several working directories backed by the same repository . Each folder has its own checked-out branch, but all of them share the same objects, commits and branch list. The setup From your main checkout: git worktree add ../integration -b integration main git worktree add ../feature-login -b feature/login main git worktree add ../feature-payments -b feature/payments main Which leaves you with something like: project/ ├── main/ → branch main ├── integration/ → branch integration ├── feature-login/ → branch feature/login └── feature-payments/ → branch feature/payments Now every agent gets its own folder. One terminal per worktree, one agent per terminal, and nobody touches anybody else's files: cd feature-login # agent 1 works here cd feature-payments # agent 2 works here, at the same time The part that surprised me: no push, no pull My first instinct was: agent finishes login, pushes the branch, then I pull it into integration. That's the muscle memory from working in a team. It's unnecessary here. All the worktrees belong to the same repository on the same machine, so Git already knows every branch locally. When agent 1 finishes: cd feature-login git add . git commit -m "feat: implement login" ...the integration worktree can merge it directly: cd ../integration git merge feature/login git merge feature/payments npm test No git push , no git pull . The directories are different, but feature/login and integration are branches of the same repo. When integration is green: cd ../main git merge integration You don't even have to wait for a worktr