ops-db-ops

Development

Database migrations, reverts, schema generation, and GraphQL codegen for Expo + serverless backend projects. Operates on the backend (TypeORM) and frontend (GraphQL code generation).

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Ops: Database Operations

Manage database migrations, schema generation, and GraphQL code generation.

Argument: $ARGUMENTS — operation (migrate, revert, generate, schema, codegen) and optional environment (default: dev)

Path Convention

Frontend: Current project directory (.)
Backend: ${BACKEND_DIR:-../backend-v2} — set BACKEND_DIR in .claude/settings.local.json if your backend is elsewhere

Safety

CRITICAL: Never run migrations or reverts against production without explicit human confirmation.

Discovery

Read the backend package.json to discover available migration and schema scripts:

migration:run:* — run pending migrations
migration:revert:* — revert last migration
migration:generate:* — generate new migration from entity changes
migration:create — create empty migration
generate:sql-schema* — regenerate SQL schema for MCP
aws:signin:* — AWS credential scripts

Read the frontend package.json to discover codegen scripts:

fetch:graphql:schema:* — fetch GraphQL schema
generate:types:* — generate TypeScript types

AWS Prerequisite

All database operations (except codegen) require AWS credentials. Run the backend's AWS signin script first:

cd "${BACKEND_DIR:-../backend-v2}"
bun run aws:signin:{env}

Operations

migrate (run pending migrations)

Local database:

cd "${BACKEND_DIR:-../backend-v2}"
STAGE={env} bun run migration:run:local

Remote database:

cd "${BACKEND_DIR:-../backend-v2}"
STAGE={env} bun run migration:run:remote:local

revert (undo last migration)

Local database:

cd "${BACKEND_DIR:-../backend-v2}"
STAGE={env} bun run migration:revert:local

Remote database:

cd "${BACKEND_DIR:-../backend-v2}"
STAGE={env} bun run migration:revert:remote:local

generate (create new migration from entity changes)

cd "${BACKEND_DIR:-../backend-v2}"
NAME={migration_name} bun run migration:generate:{env}

create (create empty migration)

cd "${BACKEND_DIR:-../backend-v2}"
NAME={migration_name} bun run migration:create

schema (regenerate SQL schema for MCP)

cd "${BACKEND_DIR:-../backend-v2}"
STAGE={env} bun run generate:sql-schema

codegen (regenerate GraphQL types in frontend)

Fetch schema:
```
bun run fetch:graphql:schema:{env}
```
Generate types:
```
bun run generate:types:{env}
```

Note: The backend must be running (locally or deployed) for schema fetching to work.

Output Format

Report operation result:

Operation	Environment	Target	Status	Details
migrate	dev	local DB	SUCCESS	2 migrations applied
codegen	dev	frontend	SUCCESS	Types regenerated