Polyglot ORM-Aware Database Migration Safety Analyzer That Actually Runs in CI
Teams keep taking production down because an ORM-generated migration adds an index that locks a large table, and code review plus generic CI never catches it. The Ruby world has strong_migrations and online_migrations; everyone else (Django, Prisma, SQLAlchemy, TypeORM, GORM) is on their own with handwritten checklists or cloud-only SaaS.
The hook is not the linter, it's the prediction. Tap the prod read replica or a recent snapshot to estimate lock duration on the actual table size, and post that as a PR comment. Prisma/Django/SQLAlchemy first; Postgres first.
landscape (4 existing solutions)
Existing tooling is either ecosystem-locked (Rails) or operates on raw SQL files, missing the layer most teams actually use: an ORM emitting DDL at deploy time. There's no neutral CI gate that says 'this Prisma migration will lock users for ~17 minutes on a table with 50M rows.'