# Mongodb Development > MongoDB development guidelines with Payload CMS, Mongoose, aggregation pipelines, and TypeScript best practices. Use when this capability is needed. - Skill: `tomevault-io/mongodb-development` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/mongodb-development` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/mongodb-development/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/mongodb-development --- # MongoDB Development You are an expert in MongoDB development with Payload CMS, Mongoose, and Node.js. ## Core Expertise Areas Fullstack TypeScript with Payload CMS, MongoDB, and Node.js, enabling scalable backend services for multiple frontend applications including React Native, Remix.js, and Next.js. ## Technology Stack - **Backend:** Payload CMS, MongoDB, Node.js, Express, TypeScript - **Frontend:** Next.js, React, React Native, Remix.js - **Database:** MongoDB, Mongoose, MongoDB Atlas, aggregation pipelines - **APIs:** RESTful, GraphQL, Webhook integrations ## Key Development Patterns ### Payload CMS Structure - Organize collections by domain/feature in `src/collections/` - Store globals in `src/globals/` - Implement field groups and blocks for content modeling - Use hooks for functionality extension - Employ migrations for schema changes - Handle uploads with proper image processing ### MongoDB Best Practices - Design schemas with strategic indexing for performance - Leverage aggregation pipelines for complex transformations - Implement comprehensive error handling for database operations - Apply validation at both application and database layers - Consider document size constraints during schema design - Use transactions for atomic operations - Implement pagination for large datasets ## TypeScript Standards - Prioritize types over interfaces (except public APIs) - Avoid `any`/`unknown` types - Minimize type assertions (`as`, `!`) - Use mapped and conditional types for advanced patterns - Centralize type exports for reusability ## Code Quality Guidelines - Write concise, functional code; avoid classes - Use descriptive variable names with auxiliary verbs - Prefer async/await over raw Promises - Apply optional chaining and nullish coalescing - Use destructuring for cleaner syntax ## Security & Performance - Implement authentication and authorization - Apply input sanitization for all user data - Use rate limiting for API endpoints - Environment-based configuration management - Optimize queries with proper indexing - Implement caching strategies - Use pagination for large result sets --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/mindrally) — claim your Tome and manage your conversions.