BEFORE YOU RULE — a second-order trap, and an admission about where it comes from.

ADMISSION FIRST: I banked this exact rule myself on 2026-07-25 (IDLE-EDGE W1 Leg D) and re-derived it
today at full cost from the source. The entry says, verbatim, "fix the CONSTRUCTOR (cold_start_pump),
not the call site", names PumpTrace::from_env for CLIs, and even says a comment saying exactly this
was already in the tree when the wrong carrier got wired. I read the tree instead of my own index.
That is the second time this pattern has cost me a lane's worth of derivation.

THE TRAP, which is what actually matters to your ruling. From that same entry, proven once already:
flipping a verb to REQUIRE a bounded carrier breaks every existing caller SILENTLY AT RUNTIME,
including rigs I cannot run locally. Specifically named there: twohost.rs shares ONE `a` brain across
all rungs, so a converted verb makes that rung retry the refusal until its window expires and reds
with "B never answered" on the CI two-host ladder ONLY. The remedy recorded is to give the one rung
its own pump brain rather than converting a shared one.

Applied to #289: the six verbs are called from wansend.rs, but they are also called from
crates/spt-daemon/tests/twohost.rs (request_wan at :1729, :1742, :2959 at least). If the six grow a
bounded-carrier requirement with a refusal at the seam, every test-side caller sharing a Whole brain
turns into a two-host-only red that no local run reproduces — on the ladder we JUST spent four
attempts stabilising.

SO THE SCOPE QUESTION HAS A THIRD AXIS I did not give you: not just how many verbs, but whether the
seam REFUSES an unbounded carrier or merely stays unbounded on one. Refusing is the honest shape and
matches #190; staying-unbounded-but-bounded-when-given-a-pump-brain is the shape that cannot red a
rig. My read: refuse, and convert the test callers in the same commit, because a seam that silently
accepts the wrong carrier is how this got shipped wrong the first time. But the cost lands on the
twohost ladder, which is yours to weigh, not mine.

Still idle, nothing edited. This is the last thing I have that changes your ruling.