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Commits
| Author | SHA1 | Message | Date | |
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 Vuong Hoang
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e8eb1594d9 |
docs(lv-mccarthy): five-arm ladder -- ckpt300 wins every axis, held at the gate by 0.02
1,200 generations across five arms. ckpt300 (epoch 0.652) is the best arm in the
run on every axis that resolves:
VOICE +0.177 at 3.2x its pairwise floor (primary), +0.128 at 2.8x with
every punctuation mark stripped. Best point estimate AND best
margin of any arm, spread 0.055/0.038 with no outlier seed.
MEMORISATION 0.12 against real unseen McCarthy's own 0.12 -- identical -- with
a longest match of 10 words against the author's coincidental 12.
All 31 matches read: stock grammar, names are the renamed
inventions, nothing protectable.
DAMAGE ran-on +0.12. Clears the operator's ratified v2 floor of 0.200 by
40%. FAILS AMENDMENT 3's self-imposed 0.100 bar by 0.02.
NOT SHIPPED, and the reason is the bar rather than the adapter. AMENDMENT 3 fixed
ran-on <= 0.100 before either new arm existed, precisely so a marginal number could
not be talked into a ship, and shipping at 0.12 would make that pre-registration
theatre. But the bar's stated rationale was written against ckpt450's pass by 0.01
-- 5% of the threshold -- and ckpt300 clears by 40%. The number excludes a candidate
the reasoning does not. That is an operator call.
ckpt325/350/375 are on disk and one may sit under 0.100. They were deliberately NOT
gated: searching the checkpoint space until something clears is candidate-shopping,
the same family as threshold-shopping approached from the other side.
THREE CLAIMS FROM EARLIER THIS SESSION ARE REFUTED and are corrected in the record:
1. "The damage is flat across epochs and only rotates direction" -- FALSE. ran-on
is non-monotonic (0.38 -> 0.13 -> 0.20 -> 0.28 across epochs 0.49/0.65/0.98/
1.96) with a real minimum near 0.65, and ckpt225 is 48% out-of-band against
ckpt300's 35%.
2. "ckpt300 runs far too short, ckpt225 will clear ran-on by being short" -- FALSE
on both. ckpt225 runs LONG (median 127, 38% over-band) and is the worst arm in
the run. I generalised from SIX generations of one arm, which is the exact n=1
violation the measurement-discipline rule names, committed in the same breath
as a note about being careful.
3. The original "gate an earlier checkpoint, the overshoot may not have arrived
yet" recommendation was RIGHT. Retracting it an hour later on a three-arm read
was the error, not the recommendation.
What is true and unresolved by any checkpoint choice: 35% of ckpt300's generations
miss the 90-140 band against base's 11%, and in-band is 0.65 against 0.89. An
adapter that buys a voice and costs a third of the length compliance is a trade, not
a defect -- but it is the operator's trade to accept.
Raw artifacts for all five arms at scripts/mccarthy-corpus/gate-results/.
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Vuong Hoang
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9c8a4e959c |
feat(lv-mccarthy): pre-register the v2 gate before any arm is generated
Freezes the lv-mccarthy gate design while no McCarthy generation exists, per the
lv-hemingway precedent: a threshold chosen after seeing the numbers is not a
threshold. Three arms (base-unadapted, ckpt900, ckpt450), 60 beats, 4 seeds.
Settles the voice-axis question D1 deferred. McCarthy's corpus measures 0.0 quote
marks per 10k against Hemingway's 838, so "emit no quotation marks" is the cheapest
way to move a char-bigram Delta without learning a sentence. Three parts:
PRIMARY unchanged -- the mccarthy register names the punctuation and
--system-from drives the base control with the same prompt, so the
cheap win is handed to both sides.
SECONDARY voice_distance.py --secondary-normalised re-runs the whole analysis
with punctuation stripped from the reference and every arm. A
conservative lower bound; reported, never the verdict.
TRIGGER voice_distance.py --punct-report evaluates a pre-registered line --
base-unadapted quote density above 100 per 10k means the control did
not take the win it was handed, and the normalised read is promoted
to load-bearing. 100 is the order-of-magnitude line between this
corpus's 0.0 and Hemingway's 838, chosen now rather than after the
table prints.
ckpt450 is NOT tied with the minimum (+4.9x the 0.00393 median neighbour jitter)
and the pre-registration says so. It is generated to test a stated prior and to
price the memorisation headroom an earlier checkpoint buys on an in-copyright
author, with a decision rule that says exactly what result would let it displace
ckpt900.
Instrument controls, run before this landed:
- the voice_distance.py refactor reproduces the shipped lv-hemingway
voice_distance.txt BYTE FOR BYTE on the default path
- strip_punct drops a quote-bearing sample from 2500.0 to 0.0 marks per 10k
- the secondary read still resolves a gap on the Hemingway arms (+0.410 at
7.3x floor), so a null on McCarthy would be a finding, not a blind detector
Pre-flight re-run at gate time rather than quoted from 2026-09-17:
- leak gate: 0 of 75 renameable, 0 of 37 sub-threshold, 0 separator-split,
four controls green
- beat-contamination audit: 0 of 3942 beats AND 0 of 3942 responses, against
Hemingway's 70 of 7094 -- build_sft_pairs.py --source-entities earned its
mandatory flag
Also records three provenance defects found on first read of the run and their
disposition: the hardcoded "r49-babyyarros-pairs-pilot" run label (cosmetic, same
literal on all three runs), the empty harness_commit (all three runs), and a
pairs_sha256_16 that is not a sha256sum of the file (consistent across runs, so a
cache key rather than a fault). The run is bound to McCarthy's pairs by record
count, not by the label.
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