{
  "path": "serving_limits/formal/lean/EssentialBits.lean",
  "find": "64 * 1024 = 65536 ∧",
  "replace": "64 * 1024 = 65535 ∧",
  "why": "The KV-cache instantiation of the theorem (`kv_cache_witness_64x1024`: 64 tenants x 1024 blocks = 65536 bits) gets a wrong product. `by decide` cannot close a false arithmetic statement, so `lake build EssentialBits` exits non-zero, the `&&` chain stops before the report is written, nothing matching the claim is printed and repro.sh exits 1. It is the defect the lab itself planted for this id (top40.json `defect_demonstration`), narrowed to the one occurrence inside that theorem so the find string is unique."
}