Means your tests cover the wrong layer. AI loves to write tests against the implementation it just wrote, tautological tests. Add one end-to-end smoke test per feature that uses the feature like a user would. Playwright or even a manual checklist beats 200 unit tests that all assert the implementation didn't change.
Write one end-to-end smoke test for [feature] that exercises it the way a real user would, from entry point to outcome, not against the implementation details. Avoid tautological tests that just assert the current code. If a real-user path can't be tested as-is, tell me what's untestable and why.