diff --git a/02-DECISIONS/0260-a-bar-block-shows-a-value-its-module-keeps-on-the-bus-and-no-module-reads-anothers-files.md b/02-DECISIONS/0260-a-bar-block-shows-a-value-its-module-keeps-on-the-bus-and-no-module-reads-anothers-files.md
index 253ee2d8..68faaec5 100644
--- a/02-DECISIONS/0260-a-bar-block-shows-a-value-its-module-keeps-on-the-bus-and-no-module-reads-anothers-files.md
+++ b/02-DECISIONS/0260-a-bar-block-shows-a-value-its-module-keeps-on-the-bus-and-no-module-reads-anothers-files.md
@@ -53,6 +53,16 @@ Two exceptions are written down beside the check:
 - the cross-module reads that stood on the day the rule took `/etc` in. These may only go: there are
   five, all the laptop model's module reading the power module's and the hotkey daemon's files.
 
+> **Progressive insight — 2026-10-08.** Review of the check found two facts to correct, and one more
+> part of the same rule. The record said there were five standing reads. There are three: all the
+> laptop model's module reading the power module's moment file. The hotkey daemon's `triggers.d` is a
+> drop-in directory, and a drop-in directory is no module's own. Any directory whose name ends in `.d`
+> (`/etc/sysctl.d`, `/etc/systemd/system/<unit>.d`, `/etc/X11/xorg.conf.d`) is a place several modules
+> each put their own file. Naming it reaches into nobody's state, and each file in it is its placer's.
+> Neither list may grow unseen. The catalogue's check compares both lists with the base branch's copies
+> and refuses a line the change adds, unless that line says `allow:` and why, so the reviewer sees each
+> addition in the diff. The decision stands as written.
+
 A path a container sees inside itself is the container's own. The check reads text, so it cannot see
 a path built in code from pieces, read from a setting, or reached through a shell the module runs.