Two claims in the validation record were stronger than the evidence
behind them.
The maximum-duration Close conclusion was stated for every conforming
client. That does not follow: the deadline is evaluated on arrival, not
on transmission, so an echo sent legitimately before the negotiated
Duration elapsed can still be queued long enough to arrive after the
server's two-second grace and carry Close. Scope the result to the
loopback run that was actually performed, and describe the Close as a
termination path for traffic continuing or arriving beyond the grace,
including delayed in-flight traffic.
The document also claimed the validation was reproducible from the
commands above, while carrying only summarized client arguments and no
harness — the harness was disposable on purpose and is not being
promoted into repository infrastructure. Say plainly that this is a
record of the validation performed rather than a reproduction harness.
No implementation, test or protocol evidence changes.