fix(pnpm): warn > error

[avivkeller]

Don't fail CI when Changesets uses npm publish.

cc @nodejs/web-infra fast-tracking

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Project	Deployment	Actions	Updated (UTC)
nodejs-org	Ready	Preview	Jul 30, 2026 7:46pm

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[cursor]

PR Summary

Low Risk
Single config tweak with no application or security impact; Node runtime devEngine remains strict.

Overview
devEngines.packageManager.onFail is changed from error to warn in root package.json.

Node still errors on runtime version mismatch; only enforcement when the active package manager does not match the declared pnpm version is relaxed. That avoids CI failures when Changesets runs npm publish, which does not use pnpm even though the repo pins pnpm via packageManager.

^{Reviewed by Cursor Bugbot for commit e90d66f. Bugbot is set up for automated code reviews on this repo. Configure here.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.11%. Comparing base (0ab03a2) to head (e90d66f).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9051      +/-   ##
==========================================
- Coverage   75.13%   75.11%   -0.03%     
==========================================
  Files         102      102              
  Lines        9105     9105              
  Branches      372      372              
==========================================
- Hits         6841     6839       -2     
- Misses       2260     2262       +2     
  Partials        4        4              

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[MattIPv4]

This has significant implications for the DX of folks working with this repo. Let's get changesets using the package manager we choose to use for this repo, rather than changing how we handle package managers for every interaction with the repo.

[github-actions]

📦 Build Size Comparison

Summary

Metric	Value
Old Total First Load JS	7.16 MB
New Total First Load JS	7.16 MB
Delta	0 B (0.00%)