How do I install the Mern Stack skill?

Run npx skillmds@latest add tomevault-io/mern-stack in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Mern Stack skill do?

Stack decisions for MERN apps (Next.js, pnpm monorepo). Reference before scaffolding or architecture work. Use when this capability is needed. It is listed under Web & Frontend on SkillMD.

Is Mern Stack safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Mern Stack?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Mern Stack free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Mern Stack?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Mern Stack by tomevault-io — Agent Skill

Name: Mern Stack
Author: tomevault-io

File contents

Locked decisions

Layer	Decision
Monorepo	pnpm workspaces
Frontend	Next.js (app router), TypeScript required
API	Next.js route handlers (`app/api/`) by default
Database	MongoDB + Mongoose
Validation	Zod (shared schemas in `packages/shared`)
Environments	local → non-prod → prod
Secrets	`.env.local` for dev; AWS for production
Containers	Not required unless deployment target forces it

Project layout

apps/web/                 # Next.js app
  app/api/                # API route handlers
  src/server/             # Server-only code
packages/shared/          # Zod schemas, types, utilities
.github/workflows/        # CI/CD
(root configs)            # eslint, prettier, tsconfig

When to add a separate API service

Only justified if:

Long-running jobs exceed serverless timeouts
WebSocket/persistent connections required
Shared API serves multiple non-Next.js clients
Compliance requires API isolation

Default: keep API in Next.js route handlers.

Reference

For versions, env setup, and deployment patterns, see reference/mern-stack-reference.md

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Frequently asked questions

Mern Stack