Claude Skills · Data & Analytics
Data Contract Migrations
majiayu000/spellbookDesign and verify data contracts, schema changes, migrations, rollbacks, backfills, compatibility windows, tenant isolation, and API-to-database field mapping. Use when changing database schema, event payloads, persisted documents, analytics tables, multi-tenant data boundaries, or any user-visible data contract where silent fallback or undeclared fields would be dangerous.
At a glance
This skill is for Data & Analytics and helps you design data contracts, verify schema changes, and plan database migrations.
git clone --depth 1 https://github.com/majiayu000/spellbook
cp -r spellbook/skills/data-contract-migrations ~/.claude/skills/data-contract-migrations
Setup, runtime and requirements describe majiayu000/spellbook, the repo this skill ships in.
SchemamigrationBackward CompatibilityRollbackData ContractTenant Isolation
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