# DB Handler

> Manage database schemas, Drizzle ORM, migrations, and data modeling. Use when this capability is needed.

- Skill: `tomevault-io/db-handler` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/db-handler`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/db-handler/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/db-handler

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# DB Handler

## Instructions
- Use `npm run db:generate` to generate migrations after schema changes.
- Use `npm run db:migrate` to apply migrations.
- Use `drizzle-orm` for queries (e.g., `eq`, `and`, `or`).
- Schema files are located in `src/db/schema/`.
- **IMPORTANT**: All schema files must be exported from `src/db/schema/index.ts`.
- Connection string is `DATABASE_URL`.

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<!-- tomevault:4.0:skill_md:2026-04-11 -->