mcpbeat

Monorepo Management

wshobson/monorepo-management

Master monorepo management with Turborepo, Nx, and pnpm workspaces to build efficient, scalable multi-package repositories with optimized builds and dependency management. Use when setting up monorepos, optimizing builds, or managing shared dependencies.

3k tokens
context cost
the whole folder, loaded on every use
2
files
instructions only
0
copies elsewhere
how many repositories repackaged it
38452
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository 
npx skills add https://github.com/wshobson/agents --skill monorepo-management

The instruction itself

13 sections, as written by the author

Monorepo Management

Build efficient, scalable monorepos that enable code sharing, consistent tooling, and atomic changes across multiple packages and applications.

When to Use This Skill

  • Setting up new monorepo projects
  • Migrating from multi-repo to monorepo
  • Optimizing build and test performance
  • Managing shared dependencies
  • Implementing code sharing strategies
  • Setting up CI/CD for monorepos
  • Versioning and publishing packages
  • Debugging monorepo-specific issues

Core Concepts

1. Why Monorepos?

Advantages:

  • Shared code and dependencies
  • Atomic commits across projects
  • Consistent tooling and standards
  • Easier refactoring
  • Simplified dependency management
  • Better code visibility

Challenges:

  • Build performance at scale
  • CI/CD complexity
  • Access control
  • Large Git repository

2. Monorepo Tools

Package Managers:

  • pnpm workspaces (recommended)
  • npm workspaces
  • Yarn workspaces

Build Systems:

  • Turborepo (recommended for most)
  • Nx (feature-rich, complex)
  • Lerna (older, maintenance mode)

Turborepo Setup

Initial Setup

# Create new monorepo
npx create-turbo@latest my-monorepo
cd my-monorepo

# Structure:
# apps/
#   web/          - Next.js app
#   docs/         - Documentation site
# packages/
#   ui/           - Shared UI components
#   config/       - Shared configurations
#   tsconfig/     - Shared TypeScript configs
# turbo.json      - Turborepo configuration
# package.json    - Root package.json

Configuration

// turbo.json
{
  "$schema": "https://turbo.build/schema.json",
  "globalDependencies": ["**/.env.*local"],
  "pipeline": {
    "build": {
      "dependsOn": ["^build"],
      "outputs": ["dist/**", ".next/**", "!.next/cache/**"]
    },
    "test": {
      "dependsOn": ["build"],
      "outputs": ["coverage/**"]
    },
    "lint": {
      "outputs": []
    },
    "dev": {
      "cache": false,
      "persistent": true
    },
    "type-check": {
      "dependsOn": ["^build"],
      "outputs": []
    }
  }
}

// package.json (root)
{
  "name": "my-monorepo",
  "private": true,
  "workspaces": ["apps/*", "packages/*"],
  "scripts": {
    "build": "turbo run build",
    "dev": "turbo run dev",
    "test": "turbo run test",
    "lint": "turbo run lint",
    "format": "prettier --write \"**/*.{ts,tsx,md}\"",
    "clean": "turbo run clean && rm -rf node_modules"
  },
  "devDependencies": {
    "turbo": "^1.10.0",
    "prettier": "^3.0.0",
    "typescript": "^5.0.0"
  },
  "packageManager": "[email protected]"
}

Package Structure

// packages/ui/package.json
{
  "name": "@repo/ui",
  "version": "0.0.0",
  "private": true,
  "main": "./dist/index.js",
  "types": "./dist/index.d.ts",
  "exports": {
    ".": {
      "import": "./dist/index.js",
      "types": "./dist/index.d.ts"
    },
    "./button": {
      "import": "./dist/button.js",
      "types": "./dist/button.d.ts"
    }
  },
  "scripts": {
    "build": "tsup src/index.ts --format esm,cjs --dts",
    "dev": "tsup src/index.ts --format esm,cjs --dts --watch",
    "lint": "eslint src/",
    "type-check": "tsc --noEmit"
  },
  "devDependencies": {
    "@repo/tsconfig": "workspace:*",
    "tsup": "^7.0.0",
    "typescript": "^5.0.0"
  },
  "dependencies": {
    "react": "^18.2.0"
  }
}

Detailed patterns and worked examples

Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.

Best Practices

  • Consistent Versioning: Lock dependency versions across workspace
  • Shared Configs: Centralize ESLint, TypeScript, Prettier configs
  • Dependency Graph: Keep it acyclic, avoid circular dependencies
  • Cache Effectively: Configure inputs/outputs correctly
  • Type Safety: Share types between frontend/backend
  • Testing Strategy: Unit tests in packages, E2E in apps
  • Documentation: README in each package
  • Release Strategy: Use changesets for versioning

Common Pitfalls

  • Circular Dependencies: A depends on B, B depends on A
  • Phantom Dependencies: Using deps not in package.json
  • Incorrect Cache Inputs: Missing files in Turborepo inputs
  • Over-Sharing: Sharing code that should be separate
  • Under-Sharing: Duplicating code across packages
  • Large Monorepos: Without proper tooling, builds slow down

Publishing Packages

# Using Changesets
pnpm add -Dw @changesets/cli
pnpm changeset init

# Create changeset
pnpm changeset

# Version packages
pnpm changeset version

# Publish
pnpm changeset publish

# .github/workflows/release.yml
- name: Create Release Pull Request or Publish
  uses: changesets/action@v1
  with:
    publish: pnpm release
  env:
    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

How to use it

Copy the folder

Take wshobson/monorepo-management from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.

Install what it needs

The instructions reference npx, pnpm. Without those the skill loads but fails at the first command.