Database Migrations
SkillDatabases & dataPlan additive, zero-downtime schema migrations with rollout, backfill, and rollback awareness. Use when renaming columns, backfilling data, or shipping risky database changes.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the Database Migrations skill
What this skill tells your AI
The instructions your AI receives, as published by hoangnguyen0403/agent-skills-standard in skills/database/database-migrations/SKILL.md and read by ahel’s review.
Priority: P0 (CRITICAL)
Use expand -> backfill -> contract for risky changes.
Rules
- Ship additive schema first.
- Backfill with resumable logic and visibility.
- Flip reads/writes only after new shape is populated.
- Drop old columns or indexes in a later safe step.
Verify
- Migration can run without taking the app offline.
- Backfill ownership, batching, and monitoring are defined.
- Rollback or pause strategy exists.
- Old and new code paths can coexist during rollout.
Anti-Patterns
- No destructive one-shot rename: expand and migrate first.
- No hidden backfill: long data moves need explicit plan and observability.
- No app deploy coupling by accident: schema and code rollout order must be clear.
References
Signals
- GitHub stars
- 565
- Forks
- 163
- Last commit
- Sep 2026
Advanced
- Catalog kind
- skill
- Gateway key
database-migrations-hoangnguyen0403- Source
- github.com/hoangnguyen0403/agent-skills-standard