docs(PENDING-181): ADDENDUM 1 — two instances placed today, and the wrap measurement

REVIEWED-138's title broke across two lines (instance 3 recurring, same week).
REVIEWED-139's table lost the wrap-citation row entirely and half of the other,
so the errata entry about citations that do not hold currently holds neither of
its citations correctly. Both found in minutes by an exact-string check with a
negative control, not by reading.

Measured: today's 68 placed lines cap at 156 chars; the rest of the register runs
to 2,184 with 502 lines over 150. So the wrap is not a standing property of the
path and why today differs is UNESTABLISHED — recorded unexplained rather than
attributed. What IS established: the damage lands only where a newline is
semantic (headings, table rows), never in prose.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01T1i5VRfHjD79hfaXjWsBXA

PENDING.md

@@ -4464,3 +4464,49 @@ A partition with no exceptions in either direction. **One opaque integer written
 ⚠ **THE CITATIONS ARE NOT TO BE CORRECTED BY EDITING.** A placed ruling is amended by a recorded act. The errata entry is drafted for steward placement; **no in-place revision has been made, and the temptation to make one has now arisen twice this week.**
 
 **Awaiting:** unchanged for the remaining nine items. Item 1 is closed; item 11 awaits a ruling on the anchor remedy.
+
+### ADDENDUM 1 — 2026-09-10 — Executor: two further instances, found by checking, and a measurement that narrows the mechanism
+
+**Filed by the executor into a steward-originated item**, because it supplies the
+instances the item's argument turns on. No part of PENDING-181's proposal is amended.
+
+**Instances 4 and 5, both in entries placed today, both found within minutes by an
+exact-string check rather than a reading.**
+
+- **REVIEWED-138's title broke across two lines**, terminating at *"under a per-control
+  reading of"* with *"instance four)"* orphaned below. **This is instance 3 recurring —
+  same failure, same week, in an entry drafted to be quotable, in the sitting that filed
+  this item about it.**
+- **REVIEWED-139's table lost a row and half of another.** The separator row and the
+  entire `tarbuckle-wrap.py:236 → :256 / 7948c09` row are absent; the remaining row
+  survives only as the dangling fragment `` **`3d45e3a`, 2026-09-09** | ``. ⚠ **The
+  errata entry whose subject is citations that do not hold currently holds neither of
+  its two citations correctly.**
+
+**THE MEASUREMENT, WHICH NARROWS THE MECHANISM AND ALSO REFUTES THE OBVIOUS READING.**
+
+- The 68 non-empty lines placed today cap at **156 characters**, clustered at 147–156,
+  with 28 over 150. That is a hard wrap at roughly column 150.
+- ⚠ **The rest of the register is NOT wrapped: 2,680 lines, longest 2,184 characters,
+  502 of them over 150.** So wrapping is not a standing property of the transit path,
+  and **why today differs is UNESTABLISHED.** Recorded as unexplained rather than
+  attributed, because the attractive explanation is untested.
+
+**What the damage is predictable from, and this part IS established:** the wrap destroys
+exactly those constructs where a newline is semantic — a `##` heading ends at the
+newline, and a table row is a line — while prose reflows harmlessly. **Every corruption
+in this item's list is a heading, a table row, or a clause; none is a paragraph.**
+
+⚠ **THE CHEAP MITIGATION, AVAILABLE TO THE EXECUTOR TODAY AND NOT REQUIRING THIS ITEM'S
+PROPOSAL:** draft headings and table rows **short enough that no wrap can reach them**,
+and prefer **bulleted lists to tables**, since a wrapped bullet continues as the same
+bullet while a wrapped row is destroyed. This does not replace the item's remedy — it
+removes the executor's contribution to the failure while the remedy is decided.
+
+⚠ **AND THE FINDING THAT MATTERS MOST FOR THE ITEM'S ARGUMENT: both defects were found
+by running a check, not by reading.** Instance 2 was found by `grep -c` a day later;
+these were found in minutes because the placement was verified against the draft with
+exact strings and a negative control. **The transit path is not self-reporting, and
+nothing in the current arrangement checks a paste except a party deciding to.**
+
+**Awaiting:** unchanged — steward authorization on the parent proposal.