diff --git a/src/skills/style/nix/rules/dotfiles.md b/src/skills/style/nix/rules/dotfiles.md
index da385fc..64a1a22 100644
--- a/src/skills/style/nix/rules/dotfiles.md
+++ b/src/skills/style/nix/rules/dotfiles.md
@@ -39,5 +39,5 @@ Each guest service group accesses its secrets through a read-only bind mount.
 
 ### Rationale
 
-SOPS applies secret ownership on the host before the guest starts.
-Read-only bind mounts give guest service groups access without write access.
+SOPS materializes secrets on the host filesystem.
+Read-only bind mounts prevent guest services from modifying the host copy.