Contracts

The cross-trade permit event spine for model training and client lists. It governs permit grain, scalar First American linkage, classification, temporal anchors, owner occupancy, coverage, freshness, audit artifacts, and promotion.

Parties

Data Engineering produces; modeling and list build consume.

Executable gates

63 total: 32 enforce, 23 shadow, 8 dry run.

Implementation evidence

A local Gold v2 candidate emits the gate inventory. Production producer and consumer parity is still open.

Caveat: contract v2.2.1 is adopted. gates.yaml v0.2.2 is a local amendment awaiting producer acknowledgement; the adopted gate baseline is v0.2.1. Local evidence is not production conformance.

The existing First American property-state spine used by features, occupancy checks, address joins, and coverage accounting. Its tolerances are grounded in the measured April 2026 baseline.

Parties

Data Engineering produces; modeling and list build consume.

Executable gates

37 total: 12 enforce, 21 shadow, 4 dry run.

Implementation evidence

Consumer-side invariants exist; producer obligations, owners, and adoption sign-off remain open.

Caveat: this is a draft contract over an existing production table. Its measured tolerances do not imply that the producer has adopted the contract.

The service handoff for address standardization: API shape, five-field equivalence, errors, reporting, certification, and service-level expectations.

Parties

ARS service owner produces; modeling and list build consume.

Executable gates

14 total: 4 enforce, 3 shadow, 7 dry run.

Implementation evidence

Adapter and small-batch smokes exist. A current certification remains the pinning gate.

Caveat: no current passing certification means ARS cannot be pinned as the permit pipeline's address-normalization version.