docs(F-867): production measured — breakaway rung serves under Claude Code's client - #102
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…akaway rung serves and the backend is in no job
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Docs only: finding F-867 §6.4 gains the production measurement, §6.5's node-client bullet is amended.
What was measured (2026-09-14 23:05 local, 2.1.5 live on the author's machine): Claude Code reconnected its MCP servers and 56 proxies started within 100 s against the upgraded tool venv. The lock winner logged
backend spawned via the breakaway rung (pid 53836); an independentIsProcessInJobread confirmed the backend is in no job while its proxy chain is in one. So Claude Code's client wraps the proxy in a Job Object that permits breakaway, and rung 1 serves in production; the scheduler rung is what the SDK's job forces in the pin and on CI. Zeroschtasksleftovers, empty launch dir. 27/56 proxies logged oneprobe failed 1/3during a 4.0 sspawn_browser; nothing was condemned.No code changes.