The subtle danger
Many multi-tenant bugs are not dramatic architecture failures. They are quiet leaks caused by a missing scope, a loose query, or a helper that forgot which organization the request belongs to.
What I prefer
I like tenant boundaries that stay obvious:
- organization identifiers in the right places,
- scoped queries by default,
- docs that name the isolation rule,
- and tests that prove one tenant cannot see another.
Why this matters
Multi-tenant reliability is not just a database choice. It is a habit repeated across handlers, services, and operator workflows.
Portfolio signal
If a SaaS repo is public, I want its tenant model to be understandable without a long explanation from the author.