When to use

Use this skill proactively for:

• Installing dependencies
• Adding or removing packages
• Running scripts
• Any command that involves a package manager

Instructions

Always use pnpm as the package manager. Before running any package manager command, check which package manager the project is already using:

1. If pnpm-lock.yaml exists → use pnpm
2. If yarn.lock exists → use yarn
3. If package-lock.json exists → use npm
4. If none exist (new project) → use pnpm

Never switch the package manager mid-project. If a project already uses npm, continue with npm throughout. Do not mix package managers in the same project.

pnpm Command mappings

Lockfile and Dockerfile

• Always reference pnpm-lock.yaml (not package-lock.json) in pnpm projects
• In Dockerfiles, use pnpm install --frozen-lockfile --prod for production installs
• Copy both package.json and pnpm-lock.yaml into Docker images