#databases

1 skill

Database Migration SafetyShip schema changes without downtime using expand-contract: backwards-compatible steps, safe locking, and a rollback plan written before running anything.Claude Code · CodingClaude CodeSKILL.mdDatabase Migration SafetyShip schema changes without downtime using expand-contract: backwards-compatible steps, safe locking, and a rollback plan written before running anything.Use when writing or reviewing a schema migration, especially renames, type changes, NOT NULL additions, or anything touching a large or hot table.@libraryCoding