Skill

migration-strategies

Migration strategies: zero-downtime deployments, expand-contract schema changes, database migrations, framework migrations. Use when planning system migrations.

Install

npx claudepluginhub rnavarych/alpha-engineer --plugin billy-milligan

Tool Access

This skill is limited to using the following tools:

ReadGrepGlob

Preview

- Planning zero-downtime schema changes or deployments

Supporting Assets

references/data-migration-patterns.mdreferences/database-migration-patterns.mdreferences/framework-migration.mdreferences/incremental-migration.mdreferences/zero-downtime-migration.md

SKILL.md

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Stats

Parent Repo Stars9

Parent Repo Forks0

Last CommitFeb 23, 2026

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Core principles

Never big bang — incremental migration with rollback at every step

Expand-contract for schema changes — add new, migrate, remove old

Batch data migrations — 1000 rows at a time, 50ms delay between batches

Test migration on production-size data — 100 rows works, 10M rows breaks differently

Rollback plan before migration plan — if you can't roll back, you can't ship

References available

references/zero-downtime-migration.md — blue-green, canary, rolling with rollback procedures

references/database-migration-patterns.md — expand-contract, schema versioning tools (Flyway, golang-migrate, Prisma), safe migration rules

references/data-migration-patterns.md — dual-write between databases, batch ETL with cursor pagination, migration validation

references/framework-migration.md — strangler fig pattern: CRA→Next.js, Express→Fastify, REST→GraphQL

references/incremental-migration.md — step-by-step migration rules, rollback plans, shadow mode, monitoring during migration

Migration Strategies

When to use

Planning zero-downtime schema changes or deployments
Migrating from one framework/database to another
Executing large-scale data migrations safely

Core principles

Never big bang — incremental migration with rollback at every step
Expand-contract for schema changes — add new, migrate, remove old
Batch data migrations — 1000 rows at a time, 50ms delay between batches
Test migration on production-size data — 100 rows works, 10M rows breaks differently
Rollback plan before migration plan — if you can't roll back, you can't ship

References available

references/zero-downtime-migration.md — blue-green, canary, rolling with rollback procedures
references/database-migration-patterns.md — expand-contract, schema versioning tools (Flyway, golang-migrate, Prisma), safe migration rules
references/data-migration-patterns.md — dual-write between databases, batch ETL with cursor pagination, migration validation
references/framework-migration.md — strangler fig pattern: CRA→Next.js, Express→Fastify, REST→GraphQL
references/incremental-migration.md — step-by-step migration rules, rollback plans, shadow mode, monitoring during migration