migration-writer
Write safe, reversible database migrations for this repo's conventions. Use for any schema change.
来源信息
- 仓库
- Archive228/loopkit
- 最近来源活动
- 2026年6月29日 21:52
- 检测到的 SKILL.md 语言
- 英语
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安装方式
默认使用会先检查来源的 Prompt；你也可以切换为直接命令，或下载本地副本。
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决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
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SKILL.md
来源说明 · 只读预览- name
- migration-writer
- description
- Write safe, reversible database migrations for this repo's conventions. Use for any schema change.
- when_to_use
- add/alter a table, column, index, or constraint
# Migration Writer
1. Read the current schema first. Match the repo's migration tool and naming (`NNN_<verb>_<noun>`).
2. Write BOTH up and down. A migration you can't reverse is a migration you can't deploy safely.
3. **Live-safe**: on a hot table, adding a NOT NULL column with no default, or an index without CONCURRENTLY, takes a blocking lock. Split into steps: add nullable → backfill → add constraint.
4. Backfill large tables in batches, not one statement.
5. Never edit an already-merged migration — add a new one.
Test with a dry-run before committing. Output the migration + the exact deploy order.
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