root ce940f4a14 multi_coord_stress: judge re-rates inbox top-1 — recovers honesty signal
Run #007 surfaced a tradeoff: LLM-parsed inbox queries produce much
tighter cosine distances (0.05-0.10 in three cases) but lose the
"system has no good match" signal that high-distance results give.
A coordinator UI showing only distance can't tell wrong-domain
matches apart from real ones.

Fix: judge re-rates top-1 against the ORIGINAL inbox body (not the
LLM-parsed query). Coordinators see both:
  - distance: how close was retrieval in vector space
  - rating:   does this person actually fit the original ask
The pair tells the honest story.

Run #008 result on the 6 inbox events:

  Demand                Top-1     Distance  Rating  Reading
  ─────────────────────────────────────────────────────────────
  Forklift Cleveland    w-3573    0.29      4       Strong
  Production Indy       e-1764    0.41      3       Adjacent
  Crane Chicago         e-7798    0.23      1       TIGHT BUT WRONG
  Bilingual safety Indy w-3918    0.05      5       Perfect
  Drone Chicago         e-1058    0.06      5       Perfect (verify e-1058)
  Warehouse Milwaukee   w-460     0.32      4       Strong

The crane-Chicago case is the architectural-honesty signal at work:
distance 0.23 says "tight match" but the judge says rating 1 reading
the original body. A coordinator seeing only distance would ship the
wrong worker; coordinator seeing distance+rating sees the disagreement
and escalates.

Net distribution: 5/6 rated 3+ (acceptable→perfect), 1/6 rated 1
(irrelevant despite tight cosine). The substrate-honesty signal is
recovered without losing the LLM-parse quality wins.

Cost: 6 extra judge calls (~9s on qwen2.5). Production amortizes
when judge runs only on top-1 of high-priority inbox events; the
search-cost-vs-quality tradeoff lives in the priority gate.

Implementation:
- New JudgeRating int field on Event (omitempty so non-judged
  events stay clean in JSON)
- New judgeInboxResult helper, reusing the same prompt structure as
  playbook_lift's judgeRate. The two could share an internal package
  if a third judge consumer appears.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 16:16:49 -05:00
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