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Measure-CIBenchmark.ps1 x4 clean: clone/start/WinRM negligible, destroy ~4-6s (shim common-param fix), 0 orphans. IP-acquire phase (20-85s) is the dominant variable cost (VMware Tools IP detect) — known, non-blocking. No reliable pre-Python PS baseline; infra metrics tracked in benchmark.jsonl. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>