An architecture diagram describes an intention and a dependency check describes what is true, and the two diverge from the first week.
$ vendor/bin/deptrac analyse --report-uncovered
Orders → Catalogue
app/Modules/Orders/PriceLookup.php:41
Violations: 1
Uncovered: 3 ← files in no layer at all
# the uncovered count is the underused signal: a new
# directory nobody assigned to a module is a boundary
# decision that was never made.
--report-uncovered is the flag worth turning on, because a file in no layer is exempt from every rule and accumulates silently. Generating the diagram from the same configuration means the picture in the documentation cannot disagree with the build.