What test metrics do you actually report from CI to Slack or Teams?

We want to add test result notifications to our Slack channel after each CI run. Before I build this out I want to know what metrics are actually useful vs noise. Things I'm considering: - Pass/fail status (obvious) - Total tests run and pass rate - Flaky test count (tests that passed after retry) - Slowest tests (top 5?) - Coverage delta vs main branch - Link to failure trace/report What do you actually send, and has anything you added turned out to be noise that you later removed?