Individual skill

landing

Let many agents write to one repository at once without collisions: a per-repository landing contract, path leases claimed before work starts, one queue that is the only writer to trunk, and a machine-wide slot governor for builds and tests. Use for 'landing', 'land this', 'merge queue', 'many agents on one repo', 'where does this work land', or before any coordinator (brigade, Orchestrate, Autopilot, swarm) delegates writing work in parallel.

t3/added/landing/SKILL.md

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# Landing

Writing scales. Integration does not. Landing makes integration a property of the repository, decided once, so no coordinator asks where work lands and no two writers collide.

The rules:

1. One trunk per repository. Every change lands there through the queue.
2. A writer claims a lease on the paths it will change before it starts. Overlapping claims are refused.
3. Writers never integrate. A worker commits in its own worktree and stops. It never merges, rebases a shared branch, or pushes trunk.
4. The queue is the only writer to trunk. It is a lock, not a process. Whoever runs `land` while the lock is free drains the queue. Everyone else gets "queue busy".
5. A review verdict holds only for the exact change reviewed. The queue lands the pinned SHA, and bounces it when the rebased change differs from the reviewed one.
6. Builds and tests run under a governor slot, so the machine is not overrun.

## The script