node-pty's WindowsTerminal queues resize calls that arrive before the
ConPTY control socket's first data flush (_deferNoArgs). If the pty exits
before the flush, the deferred resize throws 'Cannot resize a pty that
has already exited' inside the socket's 'data' handler — uncatchable by
any caller and fatal to the host process. The Windows CI lane caught
exactly this as an unhandled error while all 1233 tests passed.
Park pre-first-output resizes in our own gate (armed at every spawn
site) and replay them via setImmediate once output has flushed the
deferred list — by then node-pty executes resizes synchronously, so the
exited throw lands in tryResizePty's catch instead of the host. POSIX
terminals resize synchronously (no deferral), so the gate is armed on
Windows only and the other platforms keep their exact behavior.
Also route AgentPtyRegistry.resize through tryResizePty: it previously
called pty.resize bare, missing the just-exited throw guard the tool and
attach-socket paths already had.
Menghuan1918
6d877471d4