# Database Migrations: setup & source

> Expand-contract schema changes, safe indexes, batched backfills, and migration-tool workflows. Installable in Awesome Python Dev; review its source, license and setup.

[HTML page](https://m9rco.github.io/awesome-python-dev/tools/database-migrations/) · [Agent guide](https://m9rco.github.io/awesome-python-dev/agents/index.md) · [Discovery index](https://m9rco.github.io/awesome-python-dev/llms.txt)

This website describes the repository catalog snapshot, which may contain unreleased entries. It is not a promise that every entry exists in the currently published package. Check `uvx awesome-python-dev list --json` for the catalog available in your installed runtime. GitHub stars and review dates are recorded snapshots, not live rankings.

Catalog reviewed: 2026-10-29. [Catalog source](https://github.com/m9rco/awesome-python-dev/blob/239895d3dd1353a48c5b39eee8eb028aadd8ac8f/src/awesome_python_dev/data/catalog.json).

Skills / Installable

## Database Migrations

Expand-contract schema changes, safe indexes, batched backfills, and migration-tool workflows.

[Upstream project ↗](https://github.com/affaan-m/ECC/tree/25278e7d7b6cf6e6a4e7a6c8e10f14ff22f0eb5b/skills/database-migrations) [View repository ↗](https://github.com/affaan-m/ECC) 

### Install into your coding agents

```sh
uvx awesome-python-dev init --agents codex,claude --tools database-migrations
```

Run inside the project you want to equip. This command targets Codex and Claude Code; use `--agents` to choose other supported agents. [Read the prerequisites and setup guide](https://m9rco.github.io/awesome-python-dev/getting-started/) .

### Integration notes

Selected ECC skill directory only. No ECC plugin, hooks, agents, commands, memory service, or settings are installed. Framework examples must be checked against the target project version.

### Source & review

- Repository: affaan-m/ECC
- License: MIT
- Category: data workflows
- Reviewed: 2026-10-27
- GitHub stars at review: 290,505
- Installation: Installable
- Pinned source: `25278e7d7b6cf6e6a4e7a6c8e10f14ff22f0eb5b`

Star counts are review snapshots, not live rankings. Upstream licenses apply to each resource.

### Included in these profiles

- [Engineering](https://m9rco.github.io/awesome-python-dev/profiles/engineering/) 
- [Spring Boot](https://m9rco.github.io/awesome-python-dev/profiles/springboot/) 

### Review the source evidence

- [Upstream evidence 1 ↗](https://api.github.com/repos/affaan-m/ECC) 
- [Upstream evidence 2 ↗](https://github.com/affaan-m/ECC/tree/25278e7d7b6cf6e6a4e7a6c8e10f14ff22f0eb5b/skills/database-migrations)