nx-database

nx-database is a skill for Claude Code, Codex from qauth-labs/qauth. It costs 25 tokens per session (582 once invoked), scanned A, original, Apache-2.0.

A guide to managing a database with Drizzle ORM, a tool that maps application code to database tables and queries. It covers schema changes, SQL migrations, database commands, and seed data.

In plain words
What is it for?
Use it when modifying tables, generating or applying migrations, inspecting the database, pushing development changes, or loading seed data.
Why use it?
It gives database changes a repeatable process and helps keep the code schema and actual database structure aligned.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/qauth-labs/qauth/nx-database
Any agent
npx skills add qauth-labs/qauth --skill nx-database
Clone the repo
git clone --depth 1 https://github.com/qauth-labs/qauth

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nx-database

README.md
[![agentmods](https://agentmods.dev/badge/skills/qauth-labs/qauth/nx-database.svg)](https://agentmods.dev/skills/qauth-labs/qauth/nx-database)
Your own site
<a href="https://agentmods.dev/skills/qauth-labs/qauth/nx-database"><img src="https://agentmods.dev/badge/skills/qauth-labs/qauth/nx-database.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 582 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00025 $0.00582
Opus 5 $0.00013 $0.00291
Sonnet 5 $0.00005 $0.00116
Haiku 4.5 $0.00003 $0.00058

Measured 4d ago against content hash 32646085e62b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nx-database scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/nx-database/SKILL.md · 89 lines

What it actually says

Database Management (Drizzle ORM)

Location

Database infrastructure: libs/infra/db

libs/infra/db/
├── src/
│   ├── schema/           # Drizzle schemas
│   ├── migrations/       # SQL migrations
│   ├── scripts/seed.ts   # Seeder
│   └── client.ts         # Drizzle client
├── drizzle.config.ts
└── project.json

Commands

pnpm nx run infra-db:db:generate   # Generate migration
pnpm nx run infra-db:db:migrate    # Run migrations
pnpm nx run infra-db:db:studio     # Drizzle Studio
pnpm nx run infra-db:db:push       # Push schema (dev)
pnpm nx run infra-db:db:seed       # Seed data
pnpm nx run infra-db:db:drop       # Drop tables (DANGER)

Schema Change Workflow

# 1. Modify schema in libs/infra/db/src/schema/
# 2. Generate migration
pnpm nx run infra-db:db:generate
# 3. Review migration in libs/infra/db/src/migrations/
# 4. Apply migration
pnpm nx run infra-db:db:migrate

Schema Conventions

import { pgTable, text, bigint, uuid, jsonb } from 'drizzle-orm/pg-core';
import { uuidv7 } from 'uuidv7';

export const users = pgTable('users', {
  // UUIDv7 primary key
  id: uuid('id')
    .primaryKey()
    .$defaultFn(() => uuidv7()),

  // BIGINT epoch timestamps
  createdAt: bigint('created_at', { mode: 'number' })
    .notNull()
    .$defaultFn(() => Date.now()),

  // JSONB for metadata
  metadata: jsonb('metadata').$type<Record<string, unknown>>(),

  // Realm for multi-tenancy
  realmId: uuid('realm_id').references(() => realms.id),
});

Key Patterns

  • UUIDv7: Time-ordered primary keys
  • BIGINT epoch: Timestamps as milliseconds
  • JSONB: Flexible metadata
  • Realm-based: Multi-tenancy support

Docker Database

docker compose up -d postgres
docker compose exec postgres psql -U postgres -d qauth

Environment

DATABASE_URL=postgresql://postgres:postgres@localhost:5432/qauth
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 89 lines · 25 tokens per session scan A 32646085e62b

Subscribe to this mod's changes

nx-database is a skill published in the GitHub repository qauth-labs/qauth (24 stars, last pushed 3d ago), licensed Apache-2.0. It adds 25 tokens to every session and 582 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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