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Jinwoo-HandOrca
4548d20cc4
node-pty 1.1.0's pty_posix_spawn on macOS walks low_fds[0..2] in an allocation loop that breaks at the first fd >= STDERR_FILENO, then cleans up via `for (; count > 0; count--) close(low_fds[count])`. In the typical case (break at count=0) the cleanup body never runs and low_fds[0] — a /dev/ptmx handle — leaks per spawn. Fixed upstream in microsoft/node-pty af053f2 (PR #882), not in any 1.1.0 release. Backport the 3-line cleanup-loop fix as a pnpm patch. E2E validated against a dev daemon: 200 spawn/kill cycles kept the daemon's ptmx fd count flat at baseline; prior runs reproduced linear 1-per-spawn growth. Also documents the native root cause as a status addendum in docs/fix-pty-fd-leak.md — the JS-side destroy() discipline previously landed is still load-bearing for the SIGHUP-to-recycled-pid hazard and for synchronous fd release on daemon shutdown. Co-authored-by: Orca <help@stably.ai>