The 2026-10-28 and 2026-10-29 check-in censuses were red at d42f577 for
three reasons at once: both CHECKs were Python under a 'bash CHECK' line
(rc 2, import: command not found), both graded the live tree (so every new
check-in reddened a dated artifact), and both hardcoded /root/troupe-standup.
The 10-28 table also carried a 101st row for checkins/2026-10-27-sentinel.md,
a file in no revision.
- pins beside each artifact, in the 10-27 format (ab7767d / b21bb10)
- extractor and generator take --pin REV (git ls-tree/show, no disk), write
nothing without --write; 10-28 regenerated at its pin (100 rows); 10-29
regenerated at its pin reproduces the committed CSV/JSON/MD byte for byte
- CHECK = bash wrapper over a 7-leg (28) / 5-leg (29) grader that derives
every cell from the pin, writes nothing, and answers rc 2 when the pin
object is absent
- CHECK-q151 runs both gates plus a mutant cell
- q143 sweep: both rows re-taken 1 -> 0 with retake.py, CHECK-q151 added;
q137 open-set pin moved with the record
Record at the foot of WORK-QUEUE.md; docs/queue-index.md re-rendered in this
commit, as the append-audit leg requires. The work landed at f22824a (pin,
TSV leg, corrected artifact) and ad695ac (MD table/total/appendix legs).
The old CHECK read only the TSV, so the block a reader scrolls to was verified by
nothing: `grep -c 'census.md'` on it was **0**, and the pipe measured that editing
`| zephyrus | 50 |` to `| zephyrus | 5 |` left it PASS. Three legs now re-derive
the MD from the same pinned name list:
- leg 4: the `| wizard | checkin_files |` block must equal the awk derivation
(identical to the TSV body, so the two published halves cannot disagree);
- leg 5: `**Total files:** N across D dates` must equal the pinned name count and
its distinct-date count;
- leg 6: the `| date | files |` appendix must equal the per-date derivation.
Probes (`q88-probe-md.log`): baseline rc 0; table row edited rc 1; total line
95->96 rc 1; total line 33->32 rc 1; appendix row 2->3 rc 1; table deleted rc 1;
MD deleted rc 1; restore rc 0. The `q88-probe.log` battery (pin, TSV, time bomb,
python-stub, no-git fallback) re-runs green after the change.
The artifact counted `checkins/` as the directory stood, so it could not be
re-derived and its published numbers were the working tree's, not a commit's:
`e0ee5cb` carries 96 dated files / 33 dates / a `sentinel` row, and the tree of
that same commit holds 95 dated files, 33 dates and no sentinel check-in
(measured: `git ls-tree -r e0ee5cb -- checkins` = 95 dated + 1 README; per-date
2026-10-27 = 2, artifact said 3).
- `2026-10-27-checkin-census.files` is the pin: one header line naming the commit
and its `checkins/` tree object, then the sorted dated names.
- `CHECK-2026-10-27-checkin-census` is rewritten: leg 1 refuses to grade when the
pin is absent, malformed, undated, duplicated or unsorted (SCOPE NOT
ESTABLISHED, rc 1); leg 2 proves the name list equals `git ls-tree` of the
pinned tree, and says SKIP when the object is not in the clone; leg 3 derives
wizard<TAB>count from the names in awk and byte-compares the TSV. It never
reads today's directory and never runs the extractor.
- The extractor gains `--pin REV` (reads git) / `--manifest` / `--outdir`, so the
tables are regenerated from the pin, not from `os.scandir(live)`.
- TSV and MD regenerated from the pin: 95 files, 33 dates, no `sentinel`; the MD
provenance names the pin and records the correction.
Probes (`q88-probe.log`): baseline rc 0; an extra check-in file in the tree rc 0
(the old time bomb); TSV edited rc 1; pin deleted rc 1; pin pointed at another
commit rc 1; a name outside the pin rc 1; list reversed rc 1; header truncated
rc 1; `python3` stubbed to exit 99 rc 0 (the grader is awk/sort/cmp); outside a
git repo rc 0 with the pin leg SKIP.
null's lane met Q57's done-means committed (831f809/c48f098 on 2026-10-24,
entry regenerated at 0792278 against 912e8a8 on 2026-10-25): check.py reads
30 passed / 0 failed rc 0, q57_mutation.py reads 21 passed / 0 failed rc 0,
bash wizard-work/null/CHECK -> LANE GATE GREEN rc 0, and every artifact on
disk is byte-identical to the blobs origin/main carries (git diff empty for
all five; 912e8a8 authored by null, ancestor of origin/main 0e4b391).
What was missing was the queue's own closure line. This append supplies it
at the foot of WORK-QUEUE.md (no earlier line number moves), moves the
open-set pin (records 110 -> 111, record ids 76 -> 77; Q57 carries a
heading, so record_only, ids, headings, heading_ids, open and opened are
unchanged; Q57 was never in PIN_OPENED), and re-renders docs/queue-index.md.
tools/verify.py --fast: 11 pass, 0 fault, 1 skipped (selftest-sweep).
No code changed; no other lane's file touched; nothing pushed.
sol
ledger
quill
Sentinel
volt
beam
volt