Host-side ss cannot see the Python backend's connections: the responders run in
a container, so a client session terminates at 172.20.0.2:42130 inside its
namespace and the host only sees the NAT'd flow. 'ss | grep <client>' on the
host therefore reports nothing while a session is very much alive.
That produced a wrong precondition: 'no .105 Blaze session -- closed' was
reported while FIFA was mid-session on Python, and gate 9 was armed against a
client that had never exited. Python's own log had the answer -- it logs closes
reliably and there was no close for that session.
client-state.sh looks in both namespaces, reports Rust and Python separately,
and exits non-zero while any session is live. An unreachable container counts
as 'cannot confirm', not as 'clear'.
Fourth measurement bug in this tooling, and the most consequential: the other
three mis-COUNTED, this one mis-STATED a precondition and caused an action.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
funman300