version: 1.0
description: CASAN production drift detection policy

golden_dir: apps/okr/domain/golden-runs
evidence_dir: docs/output/casan/level5-evidence

thresholds:
  minimum_similarity: 0.85
  maximum_length_delta_ratio: 0.30

actions:
  pass: allow
  warn: require_review
  fail: block_or_fallback

metrics:
  - similarity_ratio
  - length_delta_ratio
  - golden_hash
  - candidate_hash