# Prisma governance

## Single source of truth

- Canonical Prisma schema: `frontend/prisma/schema.prisma`.
- Service copy:
  - `backend/prisma/schema.prisma`

## Update flow

1. Edit only `frontend/prisma/schema.prisma`.
2. Run `./scripts/prisma-sync.sh`.
3. Run `./scripts/prisma-check.sh`.
4. Commit changed schema copy.

## Rollout policy

- Schema rollout (`prisma db push` / migrations) is allowed only in `frontend`.
- `backend` must use generated Prisma client only.