Files
esh-pfi-infrastructure/stacks
Vuong Hoang 17db37e1cc feat(voices-seat): ship lv-mccarthy (checkpoint-300) as the fourth author voice
Shipped on the operator's standing authorisation, "ship it if the gate passes".
The gate design of record for this line -- the operator's own v2 rule, ratified
2026-09-15 -- passes on all three axes:

  VOICE          +0.177 delta_cb at 3.2x the pairwise floor, the BEST arm of five,
                 and +0.128 at 2.8x on the pre-registered punctuation-stripped
                 secondary read, so ~3/4 of the gain is words rather than marks.
                 Closed 60.8% of the reachable span on an axis deliberately made
                 harder than Bronte's or Hemingway's.
  NOT COPIED     0.12 hit-rate against HELD-OUT McCARTHY'S OWN 0.12 -- 1.0x the
                 author -- with a longest verbatim run of 10 words against the 12
                 genuinely unseen McCarthy shares with the train split by
                 coincidence. All 31 matches READ: stock grammar, name-shaped hits
                 are the renamed inventions, nothing protectable. This matters:
                 McCarthy is in copyright with a living estate.
  NO DAMAGE      ran-on +0.12 against the 0.200 floor, 40% headroom, and the
                 measured minimum across the five-arm ladder.

ckpt300 over ckpt900, the eval-loss minimum: the two-epoch recipe is now 0 for 3,
and this time the curve was CONFIDENT and wrong -- ckpt900 is the minimum and
ckpt300 sits +15.8x the median neighbour jitter above it, yet ckpt300 wins every
axis that resolves (3.2x vs 1.2x voice margin, 2.7x tighter seed spread,
memorisation 1.0x the author vs 1.8x, ran-on 0.13 vs 0.28). On this schedule read
the axes, not the curve.

THE COST IS REAL AND IS WRITTEN INTO THE COMPOSE, THE ADAPTER README AND THE
MEMORY RECORD RATHER THAN GLOSSED. In-band is 0.65 against base's 0.89 and on-beat
0.42 against 0.71 -- 35% of generations miss the requested 90-140 word band against
base's 11%. Axis C is ran-on only and is structurally blind to this; that blindness
was identified and written down before these numbers existed. No checkpoint choice
fixes it: every adapted arm is 33-48% out-of-band and ran-on is non-monotonic in
epoch. If a caller depends on a word budget, expect one generation in three to miss
it, and the fix is a retrain targeting length rather than a different checkpoint.

Rollback is one line and 0.003 s: drop the --lora-modules entry, or POST
/v1/unload_lora_adapter. The other three voices are untouched.
2026-09-21 17:58:23 -07:00
..