{ "policy_id": "hybrid-semantic-tail-gap070-v1", "scope": "hybrid semantic candidates before reciprocal-rank fusion", "minimum_adjacent_gap_exclusive": 0.07, "derivation": "Rounded upward from maximum adjacent gap 0.06504970788955688 among eight calibration All-files absence requests", "calibration_report_sha256": "56f42c523527dd748918bb8f17be6bd7818158227e692fccaf387d915f9d0a94", "boundary": "largest adjacent raw cosine gap in existing filtered file-deduplicated candidate list", "equal_largest_gaps": "retain all; numeric tie tolerance is twice f32 EPSILON", "preserve": ["strongest semantic candidate", "all independent lexical candidates", "exact filename and identifier priority", "raw semantic diagnostic API"], "claims": ["prunes clearly separated weak semantic tails"], "not_claimed": ["no-answer detection", "calibrated confidence", "universal embedding threshold", "new held-out or human quality certification"] }