Migration

SkillDev tools

Implement reversible compatibility-safe transitions. Use for schema, data, API, protocol, configuration, or dependency migrations requiring rollback and preservation proof.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Migration skill

What this skill tells your AI

The instructions your AI receives, as published by juliusbrussee/caveman in skills/migration/SKILL.md and read by ahel’s review.

Map current readers, writers, data shape, compatibility window, and ownership before editing.

  • Define forward path and rollback path.
  • Preserve existing data; make destructive steps explicit and separately authorized.
  • Keep mixed-version operation safe where rollout can overlap.
  • Sequence expand, migrate, verify, then contract when applicable.
  • Make retries idempotent and partial failure observable.
  • Verify old and new paths at required transition stages.

Stop after requested stage passes; do not perform later destructive contraction implicitly.

Signals

GitHub stars
105k
Forks
6k
Last commit
Sep 2026
Installs
46k installs
Advanced
Catalog kind
skill
Gateway key
migration-juliusbrussee
Source
github.com/juliusbrussee/caveman