diff --git a/tool/words/forbidden_words_allow.txt b/tool/words/forbidden_words_allow.txt
index b04b2e6..6587c50 100644
--- a/tool/words/forbidden_words_allow.txt
+++ b/tool/words/forbidden_words_allow.txt
@@ -10,11 +10,11 @@
 # Never a test or group name, a job or step name, or anything a command
 # prints: those are read in public logs and terminals, and their checks do not
 # read this file.
-lib/watchos_cache.dart | release_not_in_beta | The gate slug the artifact service sends in closed mode. A code identifier, never printed; it stays until the closed mode is removed after launch week.
-test/general/*.dart | release_not_in_beta | The same gate slug, in the tests that check how the CLI answers it.
-test/general/watchos_precache_test.dart | artifacts are not part of the closed beta. | The closed-mode message the artifact service sends, used as a response fixture; the CLI never prints it.
+lib/watchos_cache.dart | release_not_in_beta | A slug the artifact service may send for an engine it holds back, which the CLI matches. A code identifier, never printed.
+test/general/*.dart | release_not_in_beta | The same slug, in the tests that check how the CLI answers it.
 lib/commands/upgrade.dart | versionsort.suffix=-beta | The git tag sort of `upgrade`, which must still order the pre-release tags published before 0.1.0.
 lib/commands/upgrade.dart | (?:alpha|beta|rc) | The pre-release part of the release tag pattern of `upgrade`, for the same tags.
+lib/watchos_logger.dart | widgetPreviews | The `widgetPreviews` parameter of stock's `LoggerFactory.createLogger`, an API name the logger passes as stock's `main` does. A code identifier, never printed.
 .github/workflows/smoke.yml | versionsort.suffix=-beta | The tag sort of `upgrade`, which the smoke workflow runs unchanged to pick the tag `upgrade` picks. Code in a run: line.
 .github/workflows/smoke.yml | (alpha|beta|rc) | The pre-release part of `upgrade`'s release tag pattern, which the smoke workflow uses to pick the same tag. Code in a run: line.
 packages/in_app_purchase_watchos/lib/in_app_purchase_watchos.dart | price: p['price'] | The `price` field of `ProductDetails`, an in_app_purchase API name.