rules.yml

# Standards-as-code rules for governed interfaces.
# The checker inspects dbt-artifact-shaped JSON; it does not recreate dbt.
# the ingestion layer runs these rules against the real dbt manifest in CI.

governed_prefixes: [nrm_, lgl_]

layer_prefixes:
  landing: lnd_
  normalised: nrm_
  logical: lgl_
  presentation: prs_

required_meta:
  - key: owner
    rule: owner
    message: governed interface must declare a semantic owner
  - key: purpose
    rule: purpose
    message: governed interface must declare its purpose
  - key: grain
    rule: grain
    message: governed interface must declare its grain
  - key: unique_key
    rule: unique_key
    message: governed interface must declare a unique key
  - key: freshness_slo
    rule: freshness_slo
    message: governed interface must declare a freshness SLO
  - key: classification
    rule: classification
    message: governed interface must declare a synthetic/sensitivity classification
  - key: interface_version
    rule: interface_version
    message: governed interface must declare its version
  - key: compatibility
    rule: compatibility
    message: governed interface must declare its compatibility policy
  - key: exposures
    rule: exposures
    message: governed interface must declare downstream exposures
  - key: partition_policy
    rule: partition_policy
    message: governed interface must declare a partition policy or explicit not-applicable

# Incremental materialisation is required unless meta.incremental_exemption
# documents the reason.
incremental:
  rule: incremental_materialization
  exemption_key: incremental_exemption
  message: governed interface must be incremental or carry a documented exemption