How to safely add, edit, and verify Drizzle migrations in the skills-observability backend (PostgreSQL + Drizzle ORM). Covers the schema-first generation flow, the strict monotonicity invariant of `_journal.json` `when` timestamps (whose violation has silently skipped migrations in production), idem
How to safely add, edit, and verify Drizzle migrations in the skills-observability backend (PostgreSQL + Drizzle ORM). Covers the schema-first generation flow, the strict monotonicity invariant of `_journal.json` `when` timestamps (whose violation has silently skipped migrations in production), idempotent SQL patterns, and how to verify on a fresh DB before merging. Use this skill whenever the use