Governance Built In

Magellan embeds governance directly into the metadata management workflow rather than treating it as a separate concern.

Sensitive fields can be tagged with classification labels (PII, PHI, confidential) that propagate through lineage, ensuring downstream systems inherit appropriate handling requirements.

Each classification writes a `ClassificationApplied` entry; each removal writes `ClassificationRevoked`. Both flow through the same hash chain as schemas and mappings, so a reviewer can prove which fields were classified as PHI on any historical date.

Policy enforcement rules can be defined to prevent non‑compliant mappings from being published — for example, requiring that PII fields always have masking rules applied. Every blocked publish writes a `PolicyEnforced` entry recording the rule, the actor, and the asset.

Compliance dashboards provide real‑time visibility into governance status across your entire data landscape — and every dashboard view is a projection of the ledger, not a parallel state.