TenantAtlas/specs/095-graph-contracts-registry-completeness/data-model.md

Phase 1 — Data Model: Graph Contracts Registry Completeness

Summary

This feature introduces no new database entities and does not modify any existing schema.

Affected “Entities” (Configuration-only)

Although no database model changes occur, the feature affects the following configuration concepts:

• Graph Contract Type: A named entry in config/graph_contracts.php representing a Microsoft Graph resource.
• Graph Contract Subresource: A named sub-path template belonging to a contract type (used to model nested resources).

Ownership & Scope

• Ownership: Workspace scope.
• Persistence: Configuration only; no new tables/records.

Validation Rules

• Contract type identifiers must be stable and used consistently in code.
• Resource paths must be representable via the registry and reusable by call sites.