9d12a814e3
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lakehouse/auditor 1 blocking issue: cloud: claim not backed — "the proven escalation ladder with learning context, collects"
Phase 1 — definition-layer over append-only JSONL scratchpads.
auditor/kb_index.ts is the single shared aggregator:
aggregate<T>(jsonlPath, { keyFn, scopeFn, checkFn, tailLimit })
→ Map<signature, {count, distinct_scopes, confidence,
first_seen, last_seen, representative_summary, ...}>
ratingSeverity(agg) — confidence × count severity policy shared
across all KB readers. Kills the "same unfixed PR inflates its
own recurrence score" failure mode by design: confidence =
distinct_scopes/count, so same-scope noise stays below the 0.3
escalation threshold no matter how many times it repeats.
checkAuditLessons now routes through aggregate + ratingSeverity.
Net effect: the recurrence detector's bespoke Map/Set bookkeeping is
gone; same behavior, shared discipline, reusable by scrum/observer.
Also: symbolsExistInRepo now skips files >500KB so the audit can't
get stuck slurping a fixture.
Phase 2 — nine-consecutive audit runner.
tests/real-world/nine_consecutive_audits.ts pushes 9 empty commits,
waits for each verdict, captures the audit_lessons aggregate state
after each run, reports:
- sig_count trajectory (should stabilize, not grow linearly)
- max_count trajectory (same-signature repeat rate)
- max_confidence trajectory (must stay LOW on same-PR noise)
- verdict_stable across runs (must NOT oscillate)
This is the empirical proof that the KB compounds favorably:
noise doesn't escalate itself, and signal stays distinguishable.
Unit-tested both failure modes: same-PR × 9 repeats = conf=0.11
(info); cross-PR × 5 distinct = conf=1.00 (block). The rating
function correctly discriminates.