Settings & keep-time · Services and self-healing
Why doesn't Storage Studio tell me when self-healing repairs something?
Short answer: Repairs that need nothing from you are silent by design. The Self-healing monitor row in Settings → Services shows the latest check and how many items it repaired.
Because there's nothing for you to do. Successful repairs are silent by design — announcing "we fixed two things" next to an All systems normal status would only cause worry.
If you're curious, open Settings → Services and look at the Self-healing monitor row. It shows when the last check ran and its outcome, including "Repaired N items" when something was fixed. Anything that does need you appears as a red row instead.