stale-snapshot
A stored snapshot no test writes any more.
hiddenDROPPED
No decided findings, on 3 open-source projects.
Shown with --all. Never gates, even with an override.
Hidden by default
Its review dropped it: Jest and Vitest already report obsolete snapshots on a full run, and the static reading was not right often enough to add to that.
It still runs: spirolo check --all shows its findings, labelled, and it never fails the build, even with an override.
What it reports
A .snap entry is obsolete: no test in its sibling test file writes that key any more, because the test it was taken for was renamed or removed.
What to do
Delete the entry, or run the runner with -u.
spirolo explain stale-snapshot prints the same claim and status from your installed binary.