session 2026-09-10: the scoping sitting — REVIEWED-138/-139, the child-gate FIX, PENDING-182/-183, and six register defects

Session record, ledger, MEMORY.md rotation (prior Active Session demoted to
MEMORY-reference.md), OWED-6 queued against the frozen ladder, KG triples, and
skill-harvest proposal D.

N-now re-measured for REVIEWED-123 condition 2: 59, split 31 real / 28 mumble.
⚠ Not commensurable with the banked 36.9%, which used the one-prompt predicate.
The ladder pointer's 'direction has REVERSED / rising fast' clause is superseded
— it was a dated finding read as a status, and it contradicted the new figure in
the same sentence.

claude/memory/session-ledger-2026-09-10.md

@@ -46,3 +46,61 @@ type: feedback
 ## Sub-agent dialogues
 
 ## Bypasses
+
+---
+
+## Returns (continued — the scoping sitting)
+
+- 2026-09-10T19:20 — **Declined to recommend the count unit on grounds that would favour a number.**
+  Recommended "declare both units" precisely because it selects nothing, and disclosed the standpoint
+  in the option text: *I am the drafting hand, which is why I am recommending the option that
+  selects nothing.* The steward chose it, and also counted the occurrence I had declined.
+- 2026-09-10T20:05 — **Tested a suspicion instead of listing it.** Believed `D7` in `tarbuckle-body.py`
+  was vacuous under deletion of the guard it watches. Mutated it: it fails correctly. **Wrong,
+  disposed of in two minutes, and it did not reach the item list.**
+- 2026-09-10T21:10 — **Verified the placement instead of reading it.** Three rounds of exact-string
+  checks with negative controls against both placed entries. Found a broken title, a missing table
+  row, and — after the repair — an indented heading invisible to every `^##` reader. **Reading caught
+  none of the three.**
+- 2026-09-10T22:15 — **Checked the jurist's premise before building on it.** Told the positive control
+  was "sitting in the record for free"; one git query showed the specimen was never committed. A
+  whole condition would have been written around an artifact that does not exist.
+- 2026-09-10T22:40 — **Refused to reconcile two counts a second time.** The jurist's "third closure
+  this week" against the register's six. Recorded unresolved; the jurist then withdrew its own as
+  recollection rather than count. **Same move as the morning's partition figures, same reason.**
+
+## What held
+
+- **Mutation over green runs.** 28/28 proved nothing; deleting the gate proved it. Both mutations
+  killed exactly the intended control and nothing else.
+- **The null-search rule, inverted.** It normally fires on an empty result; today it fired on a
+  *positive* claim about a corpus, and the corpus said no.
+- ⚠ **And it failed once first:** I reported a drift date "unestablished" from a `git show` probe that
+  was silently dropping its path argument and printing commit diffs — it once claimed a match at line
+  13,327 of a 500-line file. **Second null trusted in one sitting.** Re-run with explicit argv, it
+  resolved in one pass.
+
+## Confidence to recalibrate
+
+- **Verified today:** the gate, by two mutations · both placements, by exact string with three
+  negative controls · the citation drift, by tracing line numbers across eleven commits with explicit
+  argv · `RE_HEAD_LINE`/`RE_INBODY` anchoring, with positive controls · that option (a) shipped under
+  REVIEWED-132, by reading the code comment · that the indented specimen was never committed.
+- **Inherited, not re-verified:** everything from the 2026-09-09 sitting, including the 44/50 vs 1/52
+  partition, now relabelled but not re-measured.
+- ⚠ **Measured and NOT comparable:** N-now 59, split 31/28. The banked 36.9% used a one-prompt
+  predicate. Reported as non-commensurable rather than as a rise.
+
+## Authorization moves
+
+- **Committed `REVIEWED.md`** after checking precedent rather than on the jurist's instruction — my
+  own banked note says a jurist sign-off does not authorize an act on that file. Six prior placements
+  carry the executor trailer; committing is recording, not modifying.
+- **Did NOT edit** `REVIEWED.md` content at any point; both repairs went back to the steward, the
+  second as a command rather than as text to paste.
+- **Did NOT edit** PENDING-139's `Awaiting:` line or clear its ⚑ flag, per the jurist.
+
+## Bypasses
+
+- None. One near-miss: swept the steward's uncommitted PENDING-181 into a commit of mine. Disclosed
+  in the commit message and offered to split.