# X_TEST_DISCOVERY_UNSCANNED

## Means

the discovery walk read zero files, so no test-shaped file was checked

## Typical cause

a blind rule never reads as a clean tree: a walk that matched nothing answers exactly what a clean scan of the whole tree answers — `X_INDEX_ORDER_UNSCANNED`'s zero-file condition, on the walk rather than a glob

## Fix

`bun run test-discovery` from the repo root; check the walk in `scripts/test-discovery.ts`

[CLI and verify](/error-codes#cli-and-verify)