Mongodb

This one covers MongoDB and Mongoose from schema design through aggregation pipelines. You get practical examples of both the native driver and Mongoose ODM, with real decisions like when to embed documents versus use references. The code shows proper connection handling, indexing strategies, query operators, and update patterns. The aggregation section demonstrates pipeline stages for grouping and transforming data. What I like here is the focus on best practices you actually need: virtuals, population, text search, and those update operators that aren't always obvious. It's comprehensive enough to reference during implementation without drowning you in theory.

skills.sh installs: 1.7K
GitHub stars: 296
last updated: Aug 21, 2026

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Install

$ npx -y skills add hoodini/ai-agents-skills --skill mongodb --agent claude-code

Installs into .claude/skills of the current project.

Files

MongoDB & Mongoose

Build and query MongoDB databases with best practices.

Quick Start

npm install mongodb mongoose

Native Driver

import { MongoClient, ObjectId } from 'mongodb';

const client = new MongoClient(process.env.MONGODB_URI!);
const db = client.db('myapp');
const users = db.collection('users');

// Connect
await client.connect();

// CRUD Operations
await users.insertOne({ name: 'Alice', email: 'alice@example.com' });
const user = await users.findOne({ email: 'alice@example.com' });
await users.updateOne({ _id: user._id }, { $set: { name: 'Alice Smith' } });
await users.deleteOne({ _id: user._id });

Mongoose Setup

import mongoose from 'mongoose';

await mongoose.connect(process.env.MONGODB_URI!, {
  maxPoolSize: 10,
  serverSelectionTimeoutMS: 5000,
  socketTimeoutMS: 45000,
});

// Connection events
mongoose.connection.on('connected', () => console.log('MongoDB connected'));
mongoose.connection.on('error', (err) => console.error('MongoDB error:', err));
mongoose.connection.on('disconnected', () => console.log('MongoDB disconnected'));

SKILL.md on GitHub