TenantAtlas/specs/079-inventory-links-non-uuid-ids/spec.md

Spec 079: Inventory links support non-UUID IDs

Date: 2026-02-07

Problem

Inventory dependency extraction writes edges into inventory_links. Some Microsoft Graph / Intune identifiers (notably scope tag IDs) can be non-UUID strings (e.g. "0"). The current schema defines inventory_links.source_id and inventory_links.target_id as UUID columns, causing PostgreSQL failures when non-UUID identifiers are inserted.

Goal

Allow storing non-UUID identifiers in inventory_links without crashing inventory sync/extraction.

Requirements

• inventory_links.source_id and inventory_links.target_id must accept arbitrary string identifiers.
• Existing UUID identifiers must continue to work.
• Behavior must be covered by tests.

Non-goals

• No redesign of the dependency graph model.
• No UI/Filament changes.