# Data Migration

> | [WHAT] Schema/data migration discipline — expand-contract, backfill, dual-write, rollback drill, zero-downtime, money/ledger safety. [AUDIENCE] Dave (write migration) + Aaron (run + rollback) + Sara (schema decision/ADR) + Chris/Quinn (verify) + Domain expert (Felix/Elena/Iris/Tara — money & regulated data). [WHEN] ทุกครั้งที่ PR แตะ schema/DDL/seed/backfill; ก่อน gate pre-data-migration; ก่อน deploy ที่มี migration; หลัง incident ที่รากคือ schema change. [TRIGGER] /shode-house:data-migration, "migration", "schema change", "alter table", "backfill", "zero downtime", "flyway", "alembic", "liquibase", "prisma migrate", "drop column", "ย้ายข้อมูล", "แก้ schema".

## Facts
- Page: https://tashan.sh/capability/skill-shode666-data-migration
- tashan id: skill:shode666/data-migration
- Source: https://github.com/shode666/claude-skill-shode-house
- Type: skill
- Category: other
- tashan score: 45.0 / 100
- Adoption: 14.0
- Upkeep: 80.0
- Freshness: 95.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- Official: no

## Install

```sh
cp -r data-migration ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-14 by tashan (https://tashan.sh) from public evidence. Scorer s5.