memory: lv-mccarthy D4 pairs built — 3,673 train / 269 val, the largest val fixture in the line

persistent-memory.md

@@ -117,18 +117,31 @@ no longer deployed sidecars here. See Recent decisions.)
 
 _As of 2026-09-17 ~09:00 PT._
 
-### IN FLIGHT: lv-mccarthy D4 pairs, generating on pfi-gx10
+### DONE: lv-mccarthy D4 pairs built — NEXT is `train_pairs_lora.py`
 
-`~/lv-mccarthy/run-pairs.sh` launched 2026-09-17 ~11:50 PT: **3,722 train** then **276 val**
-pairs against the `gen` seat, ~25 min. Seat fingerprint `vllm-0.1.1.dev50+geed1f3d0c-601ad866`
-— **identical to Hemingway's run**, so the two pair sets are generator-comparable.
-Watch `pairs/train.log`; `pairs/.complete` is written at the end.
+`~/lv-mccarthy/pairs/` on gx10, 2026-09-17 11:55 PT via `run-pairs.sh` (committed at
+`scripts/mccarthy-corpus/run-pairs.sh`).
 
-Then `train_pairs_lora.py`. Before the eval, honour D1's pre-registration: a
-**punctuation-normalised secondary read** of the voice axis.
+```
+train  3,673 pairs of 3,722 passages   reject 1.32%   461,172 words   1,377 s
+val      269 pairs of   276 passages   reject 2.54%    33,477 words      98 s
+```
 
-⚠ The corpus under it was **rebuilt at ~11:45 PT** — see the split-name leak below. Old tree
-kept at `corpus-{clean,renamed}.pre-splitfix` on gx10. Recipe: `scripts/mccarthy-corpus/RUNBOOK.md`.
+⭐ **The val split is the largest fixture in the line** — 269 against Hemingway's 200 and
+Brontë's 44 in-band, the structural cause of Brontë's underpowered voice axis.
+Generator fingerprint `vllm-0.1.1.dev50+geed1f3d0c-601ad866`, **identical to Hemingway's
+run and unmoved mid-run**, so the two pair sets are generator-comparable.
+
+Verified in the produced pairs, not assumed: **0 mid-sentence line breaks** in all 3,942
+responses, **0 chapter-argument responses**, and **0.0 quote marks per 10k words** in both
+splits — McCarthy's unquoted dialogue survives rename → chunk → reflow → pair intact.
+`sourcename` rejected **14 beats** that named a character the rename removed; Hemingway's
+shipped pairs had no such filter at all. `narrator_retries` 101 of 3,673 (2.8%) against
+Hemingway's 8.7%, which is what third-person prose looks like.
+
+Then, before the eval, honour D1's pre-registration: a **punctuation-normalised secondary
+read** of the voice axis — and note the `mccarthy` register now states the tics, so the
+base control arm gets them too.
 
 ### OPERATOR CALL — lv-hemingway carries 3 of the same hidden survivors and is LIVE