13 · Environments & Packaging
npm / pnpm
JavaScript package installers
Tools that install libraries into a JS/TS project. npm ships with Node; pnpm is a faster alternative that shares packages on disk. Yarn is another common option.
Concrete example
`pnpm install` or `npm install` reads the lockfile and fills `node_modules`.
Why it matters
Almost every web agent session starts by installing or updating dependencies.