diff --git a/tests/README.md b/tests/README.md
index 669ff41..d96269d 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -9,7 +9,7 @@ they run anywhere (laptop, CI, a git hook). They do **not** belong on vm101 or i
 | File | Covers |
 |------|--------|
 | `scripts.bats`    | `slug.sh`, `log-append.sh`, `index-append.py` (insert, sort, bump, idempotent) |
-| `lint.bats`       | `lib/lint.sh` validators + `scoped-lint.sh` reuse |
+| `lint.bats`       | `lib/lint.sh` validators + `scoped-lint.sh` reuse + duplicate-slug advisory (edit-distance math, self-match skip, once-per-run) |
 | `structure.bats`  | `lib/structure.sh` report/sync |
 | `run-ingest.bats` | `run-ingest.sh` end-to-end (DRY_RUN, local bare remote) — needs `jq` |