Open-source tool queues Claude Code agents to merge locally

funador published a merge queue for parallel Claude Code agents, giving each one its own worktree lane, per the project's GitHub repo.

Run more than one agent against the same repository and they start stepping on each other. Push races, duplicate heavy builds, tests fighting over the same shared ports, wasted compute at best and corrupted pushes at worst.

claude-code-merge-queue assigns each agent a numbered lane with its own directories and ports. A land command then rebases and pushes each lane through a FIFO queue behind a pre-push check.

A single machine-wide lock caps builds at one at a time across every lane. It tracks ownership by process ID rather than a fixed timeout. When an agent's process dies mid-build, the lock notices the dead PID and reclaims itself instead of leaving every other lane to wait.

It's MIT licensed and runs locally at zero cost, a contrast the project draws with GitHub's enterprise merge queue.