Agent Skills: cloud-gpu-box

Connect to and operate a rented cloud GPU box (RunPod, Vast.ai, Lambda, Paperspace) — Tailscale SSH setup, plus the operational failure modes that silently waste credit: unusable tailnet bulk transfer, pgrep self-match over SSH, shared-GPU VRAM contention, no cross-instance volume, gated model repos, PEP-668 pip. Use when setting up Tailscale, SSHing to a cloud GPU, moving data to or from an instance, or running long training/inference jobs on rented hardware.