Migration Helper

If you're working with Convex and need to make schema changes that affect existing data, this walks you through the process without breaking your app. It covers the important distinction between safe additive changes (optional fields, new tables) and breaking ones that need migration code (required fields, type changes). The patterns here are solid: backfill data before making fields required, use dual-write for zero downtime, process large tables in batches. The tag migration example from arrays to relational tables is especially helpful since that's a common refactoring. Good safety net for teams who've been bitten by naive schema changes in production.

Install to Claude Code

npx -y skills add get-convex/convex-agent-plugins --skill migration-helper --agent claude-code