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Garry Tan
b4e49d080d
Updates combineVerdict to support a third ML signal layer (deberta_content)
for opt-in DeBERTa-v3 ensemble. Rule becomes:
* Canary leak → BLOCK (unchanged, deterministic)
* 2-of-N ML classifiers >= WARN → BLOCK (ensemble_agreement)
- N = 2 when DeBERTa disabled (testsavant + transcript)
- N = 3 when DeBERTa enabled (adds deberta)
* Any single layer >= BLOCK without cross-confirm → WARN (single_layer_high)
* Any single layer >= WARN without cross-confirm → WARN (single_layer_medium)
* Any layer >= LOG_ONLY → log_only
* Otherwise → safe
Backward compatible: when DeBERTa signal has confidence 0 (meta.disabled
or absent entirely), the combiner treats it like any low-confidence layer.
Existing 2-of-2 ensemble path still fires for testsavant + transcript.
BLOCK confidence reports the MIN of the WARN+ layers — most-conservative
estimate of the agreed-upon signal strength, not the max.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>