A test that passes after a rerun is still a release risk. Test Flake Doctor imports the NUnit result files your Test Runner already creates, builds a committed history, and ranks the tests that do not decide consistently.
What it helps you do
Use it when reruns hide unstable tests, quarantine has become permanent, or a team needs evidence to decide what to fix first.
The tool reports statistical and contextual evidence; it does not prove the root cause of nondeterminism. Imported history quality matters, and short histories remain low-confidence instead of being overstated.
Read the complete documentation.