Codecov should complain

I don't think so:

    patch:
      default:
        # Be tolerant on slight code coverage diff on PRs to limit
        # noisy red coverage status on github PRs.
        # Note: The coverage stats are still uploaded
        # to codecov so that PR reviewers can see uncovered lines
        target: auto
        threshold: 1%

you need to add probably around 200k/100 lines of uncovered code for it to complain ;)

At least codecov should show up the patch and project details which do not happen on the PR for a while already.

We checked the upload and this seems to work but the reporting is kind of broken

I don't think so:

I do think so :)

1% is a tolerance on the patch, so if you add 5 lines and 1 is not covered, you have 20% of the patch not covered and codecov should complain

Maybe doing a "reinstallation" here would help? https://github.com/organizations/scikit-learn/settings/installations/9355

Maybe doing a "reinstallation" here would help?

"Did you try to switch it off and on?" ;) I will just wait for the build to finish to see the report on the website to see if there is any kind of error.

You did not wake up codecov but you made numpydoc angry 😄

I open a topic on the discourse from the codecov community:

https://community.codecov.com/t/codecov-github-app-does-not-report-back-in-github-prs-anymore/4209

closing in favor of #25919