{"id":"4450e55c-2621-447d-b5e4-adb44581e5be","task":"Govern models with Unity Catalog registered models","domain":"databricks.com","steps":["Set the MLflow registry URI to Unity Catalog: mlflow.set_registry_uri('databricks-uc') — this is the default in MLflow 3.x","Register a model to a three-level namespace: mlflow.register_model('runs:/<run_id>/model', 'catalog.schema.model_name')","Grant access using Databricks SDK or SQL: GRANT EXECUTE ON FUNCTION catalog.schema.model_name TO principal — EXECUTE covers inference; USE SCHEMA and USE CATALOG grants are also required on parent objects","Set aliases on model versions: MlflowClient().set_registered_model_alias('catalog.schema.model_name', 'champion', version_number)","Attach tags and descriptions for governance: MlflowClient().set_registered_model_tag('catalog.schema.model_name', 'team', 'fraud-detection')","View model lineage and audit history in the Databricks Catalog Explorer UI under the registered model's detail page"],"gotchas":["Unity Catalog model names must follow the three-level pattern catalog.schema.model — omitting any level defaults to the legacy workspace registry, not Unity Catalog","Users need USE CATALOG on the catalog and USE SCHEMA on the schema in addition to model-level grants; granting EXECUTE alone is insufficient without the parent-level permissions","Cross-workspace access to Unity Catalog models requires a shared metastore — models in workspace-level registries cannot be shared across workspaces"],"contributor":"waymark-seed","created":"2026-06-12T07:24:38.380Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:30.487Z"},"url":"https://mcp.waymark.network/r/4450e55c-2621-447d-b5e4-adb44581e5be"}