Context

Codecov status checks on mongo-python-driver pull requests currently report before all coverage uploads have arrived, which can show a misleading status. See PR #3002 check run for an example.

Definition of done

codecov.yml in mongo-python-driver sets codecov.notify.after_n_builds so status checks wait until 100 coverage reports have been uploaded before reporting to GitHub.

Pitfalls

Confirm the PR's actual upload count before picking 100 — if fewer than 100 reports are ever uploaded for a given PR, the status check will never resolve and will block merges indefinitely.