# DB Migration > Create and apply Prisma migrations; validate schema. Use when changing the database schema, adding models or columns, or running migrations. Use when this capability is needed. - Skill: `tomevault-io/db-migration-2` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/db-migration-2` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/db-migration-2/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/db-migration-2 --- # DB Migration Create and apply Prisma migrations for TikTok-AI-Agent. ## Input - Description of the change (e.g. "add Project.costCents") or concrete diff. Optionally a migration name. ## Steps 1. **Edit schema** – Update `apps/server/prisma/schema.prisma`. Keep relations, `@id`, `@default`, etc. consistent. 2. **Create migration** – From repo root: - `npm run db:migrate:dev` (creates and applies in dev), or - `cd apps/server && npx prisma migrate dev --name `. 3. **Verify** – Run `npx prisma generate` (or `npm run db:generate`) and ensure the app typechecks. Run `npm run test` if touching code that uses the new schema. 4. **Report** – "Migration created and applied" or "Migration failed: …" with next steps (e.g. fix schema, resolve conflicts). ## Output - Updated `schema.prisma` and a new migration under `apps/server/prisma/migrations/`. - Short summary: success or failure and what to do next. ## References - [apps/server/prisma/schema.prisma](apps/server/prisma/schema.prisma) - [AGENTS.md](AGENTS.md) – `db:generate`, `db:migrate:dev` - [.cursor/rules/always-project-standards.mdc](.cursor/rules/always-project-standards.mdc) – DB section --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/sedarged) — claim your Tome and manage your conversions.