364 test functions across 64 files (counted from source at build time) — unit, integration (incl. leakage, splits audit, freshness, contract conformance, per-baseline runners), e2e smoke, and data-integrity checks that run only where the real data lives.
Progress itself is an append-only ledger: the sweep loop commits a snapshot (chore(results): sweep progress snapshot — … done … pending …) with the coverage summary embedded in every message, so the history of the matrix is in git log.