The usage queue read drains the proxy. A batch that is then not written (the
client or the bus refuses its shape, an ambiguous key owner, a failed write) is
lost, and the Console showed proxy totals with no sign of it. The reader now
counts these per enabled business since the bus started, the proxy view returns
the count as droppedBatches, and the Console proxy section says so above 0.
A read that failed before the proxy answered or that it refused drained nothing
and is not counted. Telemetry only; no quota reads it. The log line stays
proxy-usage-read-failed.
Ruling 1: model records keep a bounded previous list (64 ids, oldest dropped)
of ids that left by rotation, grace expiry or re-issue; a fire removes the
record. A tokens.keys leaf matches and counts every id in the lineage that
holds it. Lineage ids are unique host-wide. An orphaned leaf limits nothing,
logs one value-free line when it becomes orphaned, and the Console usage
view lists it.
Ruling 2: an agent with no model key under a key quota refuses
key-quota-no-model-key, passed through the broker, launcher and stop reason.
Ruling 3: covered by the lineage; no mayLaunch change.
Ruling 4: the usage module receives a frozen { readUsageQueue } only.
Ruling 5: every telemetry fixture wait races a 5 s real-timer deadline.
Commits the 18 product paths of the row 333 R1 repair exactly as the reviewed overlay. Packet hashes: source-tests.patch sha256 a78bc385801b64be270fb9d6e84672c443738a5fce8eb68f7d2a01359a57a770 (40623 bytes), INDEX.json sha256 3eb9b8d10445aa328be3b854385e4792dda2c5712b19d443d485d1b00a18d0f8, changed-source-tests.json sha256 42f770fc3e2384362efd1e416091355c064b6cca22dd40f3b5ef8f7b67e43a52. The committed bytes were checked by applying source-tests.patch to 503b91e56 in a scratch tree and comparing the 18 paths. The approvals are source only: R2 (APPROVE source-only, 2026-10-26 23:32:39Z) and Boyd's first review (APPROVE, source only, 2026-10-27T00:27:55Z), both on HEAD 503b91e56 plus this overlay. No test has run on these bytes yet.