home/categories/data-engineering/charleswiltgen-axiom-axiom-codex-skills-axiom-swiftdata-migration-skill-md
data-engineeringdata-ai
axiom-swiftdata-migration
Use when creating SwiftData custom schema migrations with VersionedSchema and SchemaMigrationPlan - property type changes, relationship preservation (one-to-many, many-to-many), the willMigrate/didMigrate limitation, two-stage migration patterns, and testing migrations on real devices
maintainer
CharlesWiltgen
Updated 3/29/2026
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quick start
Installation and usage
Use when creating SwiftData custom schema migrations with VersionedSchema and SchemaMigrationPlan - property type changes, relationship preservation (one-to-many, many-to-many), the willMigrate/didMigrate limitation, two-stage migration patterns, and testing migrations on real devices
Installation
$ install --globalskills.sh
Usage
Once installed, you can use this skill by running the following command in your terminal:
skills use axiom-swiftdata-migration