Implements safe, version-controlled data migrations for Foundry VTT modules and systems.
The fvtt-data-migrations skill provides a standardized framework for handling breaking changes in Foundry VTT module development. It guides developers through implementing schema versioning, moving data between storage locations, and cleaning up legacy fields using Foundry's native update syntax. By following proven patterns for idempotency and safe data transformation, this skill ensures that user data remains intact while modules evolve across different versions, preventing data loss and minimizing manual user intervention.
Key Features
01Idempotent migration lifecycle management
02Standardized schema versioning and tracking patterns
