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has-yarn

has-yarn is a utility that checks if a project is using Yarn by looking for a yarn. lock file in the specified directory or its parent directories. It is useful for tools that need to determine whether to use Yarn or npm for installing dependencies.

lurq health score
58/100
Confidence
proven
Weekly downloads
6,154,189
Latest version
4.0.0
Last release
Sep 14, 2025
License
MIT

Should you depend on has-yarn?

lurq's verdict: low

  • No known advisories

Check this from your coding agent

This page is a daily snapshot. lurq's verify tool checks has-yarn at the exact version your agent is about to install, and compat checks it against the rest of your stack. One command connects Claude Code, Cursor, VS Code and other agents:

npx lurqrun

Free to start. Quickstart

Upgrading has-yarn

What each major version removed, renamed or re-signatured, from lurq's extraction of the published packages.

Scored from public signals (npm registry, GitHub, deps.dev and advisory databases). Data as of Sep 17, 2026; this page refreshes every 168 hours. Source repository.